Re: Tomcat memory allocation
Op vrijdag, 9 december 2011 16:11 schreef Pid p...@pidster.com: On 09/12/2011 14:52, Martin O'Shea wrote: -Original Message- From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] Sent: 09 Dec 2011 14 46 To: Tomcat Users List Subject: RE: Tomcat memory allocation From: Martin O'Shea [mailto:app...@dsl.pipex.com] Subject: Tomcat memory allocation Following advice found elsewhere on the internet Always to be taken with large chunks of salt. set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx512m -XX:MaxPermSize=128m You would be better off using CATALINA_OPTS, since setting JAVA_OPTS pointlessly affects the shutdown script as well as the startup one. I know that settings: Xms128m -Xmx512m Control the initial heap size and what it can expand to. In a server environment, you normally want Xms and Xmx set to the same value to avoid heap thrashing. The exact size is completely dependent on what your webapps need. But what exactly is: -XX:MaxPermSize=128m It's the amount of space to which the so-called permanent generation can expand. PermGen holds primarily instances of java.lang.Class, so it only needs to be specified if you have a large number of classes in your environment. Should it be set to an addition of the other settings, or the other settings to an addition of it? What does that question mean? PermGen size is completely independent of the heap size. Make sure you have enough RAM available on the system to support the Xmx + PermGen + a_lot_of_other_stuff. Monitor the system to make sure you're not getting into paging. Thanks for this Chuck. I realise now what is happening. I thought the PermGen space was used in the heap when now I see it as just storing class definitions. So I could reduce it below 128Mb if I choose. Is there a default value? As to setting Xms and Xmx to the same, I will do that. A job hung earlier and I wonder if memory was to blame although there is nothing in the system or server logs to say so. Connect VisualVM to your Tomcat instance and use the monitor tab to observe the actual PermGen usage. It should be pretty stable, unless you're doing something funky like generating classes or using RMI. You'll then know how much you need to allocate. p -- [key:62590808] Don't forget jstat also: $ jstat -gc -h 10 -t 84762 3s TimestampS0CS1CS0US1U EC EUOC OU PC PUYGC YGCTFGCFGCT GCT 700819.2 1792.0 1792.0 288.0 0.0640.0289.280320.061284.6 95296.0 95013.75163.182 20064.692 67.874 700822.2 1792.0 1792.0 288.0 0.0640.0289.280320.0 61284.6 95296.0 95013.75163.182 20064.692 67.874 700825.2 1792.0 1792.0 288.0 0.0640.0289.280320.0 61284.6 95296.0 95013.75163.182 20064.692 67.874 700828.2 1792.0 1792.0 288.0 0.0640.0289.280320.0 61284.6 95296.0 95013.75163.182 20064.692 67.874 700831.1 1792.0 1792.0 288.0 0.0640.0315.580320.0 61284.6 95296.0 95013.75163.182 20064.692 67.874 700834.2 1792.0 1792.0 288.0 0.0640.0323.080320.0 61284.6 95296.0 95013.75163.182 20064.692 67.874 700837.2 1792.0 1792.0 288.0 0.0640.0323.080320.0 61284.6 95296.0 95013.75163.182 20064.692 67.874 Ronald.
Re: [OT]RE: Maximum memory that can be assigned to Tomcat on windows platform
Op donderdag, 1 december 2011 09:39 schreef Casper Wandahl Schmidt kalle.pri...@gmail.com: See below. I hope MS Outlook does some decent indend so my response is clear -.- -Original Message- From: Christopher Schultz [mailto:ch...@christopherschultz.net] Sent: 30. november 2011 18:51 To: Tomcat Users List Subject: Re: Maximum memory that can be assigned to Tomcat on windows platform -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Casper, On 11/30/11 3:37 AM, Casper Wandahl Schmidt wrote: Another question to ask is, why do you have 8GB memory when running 32bit? That is just stupid since 32bit cannot address more than 4GB of memory no matter what you do. Any sysadmin should know that right? That's per process. All reasonably recent 32-bit OSs can address way more than 4GiB internally. For example: http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778%28v=vs.85%29.aspx#memory_limits This is generally done through PAE (http://en.wikipedia.org/wiki/Physical_Address_Extension) which allows 32-bit OSs to access more than 4GiB at the kernel level, though each process is still limited to 4GiB. Aha so I learned something new today :) I'm still puzzled as to how a 32 bit CPU can compute and fetch a memory cell with address above 4GB since it cannot hold this large value. Anyway that is just too much low-level computer science for me, all I ever had was a seven week course on architecture and networking (a single week out of the seven) :) -Casper Running a machine with more than 4GiB in 32-bit mode isn't stupid at all IMO. If you have relatively small processes, there's no need for the overhead of 64-bit even if you have 16GiB or more. - -chris I have an analogy for you. If you look out of your window you only see a small part of the world. If you move your window you wil see another part of the world. This is what the OS does with PAE. It moves the window on your RAM frequently. That is why a 32 bits application only sees max. 4GB. That is the size of its window. Ronald.
timeout exception is ignored?
Hi,
The method org.apache.catalina.connector.Request.parseParameters() contains
this code.
try {
if (readPostBody(formData, len) != len) {
return;
}
} catch (IOException e) {
// Client disconnect
if (context.getLogger().isDebugEnabled()) {
context.getLogger().debug(
sm.getString(coyoteRequest.parseParameters),
e);
}
return;
}
When there is a timeout exception during reading of the postbody it is ignored
and my servlet runs without parameters. Why is this? Why don't I get the
exception in my code, so I can handle it?
Ronald.
RE: Tomcat clustering session attribute is changed without request
Hi, Replication of the attributes is done by the cluster valve. http://tomcat.apache.org/tomcat-6.0-doc/config/cluster-valve.html If you manage to call that code from your own application, than you can do what you want. But that is not default functionality of Tomcat. You have to make it yourself. Ronald. Op dinsdag, 25 oktober 2011 09:44 schreef Hodchenkov, Paul paul.hodchen...@oxagile.com: Hi All, I have used http://code.google.com/p/psi-probe/ to debug session replication. So HttpSession attribute is NOT replicated when it is changed without http request. It's value is changed only on the local tomcat. However, when attribute is changed with http request - everything works fine. So, is there any way to force the replication of HttpSession? -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Monday, October 24, 2011 4:08 PM To: Tomcat Users List Subject: Re: Tomcat clustering session attribute is changed without request On 24/10/2011 14:05, Hodchenkov, Paul wrote: Hi, Thanks for the reply! - What does 'stores session map in memory' actually mean? It's ConcurrentMapString, HttpSession map which is filled by HttpListener. I can access session attributes of any user using this approach. Does changes to attributes in HttpSession cause a replication in this case? Don't know, probably. What is the benefit of using JMX connection to access the session instead of HttpListener in this case? It means you don't have to jump through hoops to access something that is already accessible elsewhere. p -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Monday, October 24, 2011 3:59 PM To: Tomcat Users List Subject: Re: Tomcat clustering session attribute is changed without request On 24/10/2011 11:55, Hodchenkov, Paul wrote: Hi all, I have configured tomcat 7 cluster by using [1] with DeltaManager and it works fine. However I have the following 2 questions: 1) My application stores session map in memory(admin can force logout of any user and change some session attribute). Will this session attribute be replicated if it is changed without tomcat http request (changed by backend task for example)? What does 'stores session map in memory' actually mean? Instead of copying session objects around the place, why not just use the JMX API and the operations on the Manager MBean? Catalina:type=Manager,context=/myapp,host=localhost p 2) It's seems that expireSessionsOnShutdown=false in DeltaManager can solve the problem with http://old.nabble.com/sessionListener.sessionDestroyed-is-called-on-shutdown-of-a-node-in-the-cluster-td16178701.html? [1] http://tomcat.apache.org/tomcat-7.0-doc/cluster-howto.html Best Regards, Paul Hodchenkov Senior Java developer, Oxagile Skype: paul.hodchenkov Email: mailto:paul.hodchen...@oxagile.com - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: HOW TO detect what app server you're running in
Does this help?
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println(serverinfo: +
getServletContext().getServerInfo());
}
Ronald.
Op dinsdag, 25 oktober 2011 13:33 schreef Bob DeRemer
bob.dere...@thingworx.com:
I may need to use some Tomcat-specific code in my web app. As a result, I would like to detect [if possible] when I'm running in Tomcat, so I can invoke the logic. If anyone knows how best to do this, ideally with some sample java code, that'd be great.
Thanks,
Bob
Re: Tomcat clustering session attribute is changed without request
Op maandag, 24 oktober 2011 12:55 schreef Hodchenkov, Paul paul.hodchen...@oxagile.com: Hi all, I have configured tomcat 7 cluster by using [1] with DeltaManager and it works fine. However I have the following 2 questions: 1) My application stores session map in memory(admin can force logout of any user and change some session attribute). Will this session attribute be replicated if it is changed without tomcat http request (changed by backend task for example)? 2) It's seems that expireSessionsOnShutdown=false in DeltaManager can solve the problem with http://old.nabble.com/sessionListener.sessionDestroyed-is-called-on-shutdown-of-a-node-in-the-cluster-td16178701.html? [1] http://tomcat.apache.org/tomcat-7.0-doc/cluster-howto.html Best Regards, Paul Hodchenkov Senior Java developer, Oxagile Skype: paul.hodchenkov Email: mailto:paul.hodchen...@oxagile.com Hi, 1. Changes in the session are only replicated at the end of a request. BTW: My experience with holding references to Sessions in your own map is that it is harder than you think. It is more easy to create a map with blocked userids and block those users with a filter. 2. I don't understand your question. Ronald.
Re: URL simplification
Simplified explanation: Apache httpd starts as user root. Binds port 80 and than drops privileges by setuid(apache) or setuid(nobody). In java you can't easily drop privileges. So if you start as root in Java you can't easily change user. Of course you can call native code to do this. And that is called jsvc. http://commons.apache.org/daemon/jsvc.html BTW: if you are not root on a server, you cannot bind port 80 with httpd also. BTW2: there are all kinds of new ways of assigning privileges in unix since a few years which will make it more easy to say 'user x may bind to port 80'. But I have never seen anybody using it. Ronald. Op maandag, 10 oktober 2011 13:50 schreef Darryl Lewis darryl.le...@unsw.edu.au: Something I've always wondered about, but never figured out, is how does apache run as 'apache user' or 'nobody' and work on a port below 1024, but Tomcat can't? Anyone got a simple explanation? On 10/10/11 9:53 PM, Mark Thomas ma...@apache.org wrote: On 10/10/2011 09:56, Léa Massiot wrote: Hello, Thank you for reading my post. Here is my question: - Presently, to access my WebApp first page, I have to type in the following URL in a browser: http://hostname-or-ip:8080/my-webapp/ - Instead, I wish I could type in a URL such as: http://my-webapp/ Is it possible? How? And by the way, I don't know what's the name of such an operation. I used the expression URL simplification... Thank you for pointing me in the right direction! There are three parts to this. 1. Removing /my-webapp/ from the end of the URL - Deploy your web application as the ROOT web application Read the docs or search the list archives for the various ways of doing this. 2. Removing the port (8080) from the URL - Configure your HTTP connector to use port 80 rather than 8080 Port 80 is privileged so you'll need to run as root (bad) or use a service wrapper (such as jsvc from Commons Daemon) that binds to port 80 as root and then drops privileges - Use iptables (or equivalent) to map port 8080 to 80 3. Replace hostname-or-ip with my-webapp - This will require a DNS entry that resolves my-webapp to the IP address of the machine where Tomcat is running. This is probably already set up for the machines host name. If you don't want to use that, you can: - edit the hosts file on the client (fine for testing) - talk to your network administrator about adding an appropriate DNS entry Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Preferred configuration with Hardware Loadbalancer
What do you mean by Apache Webserver? Do you mean Apache Tomcat or Apache httpd? And do you want Failover (active-passive) or Loadbalancing (active-active)? Ronald. Op donderdag, 6 oktober 2011 10:36 schreef Alexander Diedler adied...@tecracer.de: Hello, I am just planning a Application cluster for Tomcat. We have a big hardware loadbalancer (Cisco) and three virtual servers. We talked about several configurations, but it is not clear for us, how to build a Tomcat cluster, with Failover and Session-Replication, but without Loadbalancing? E.g. the LB redirect the request to node 1. The Apache Webserver redirects the request to node2. So we have a double load-balancing, what ne would avoid. Best regards Alexander
Re: AW: Preferred configuration with Hardware Loadbalancer
I don't have a crystal ball to look into your setup, but I would remove httpd and set up the LB and Tomcat. Less moving parts, so it is easier to think about. And read this: http://tomcat.apache.org/tomcat-7.0-doc/cluster-howto.html Ronald. Op donderdag, 6 oktober 2011 12:43 schreef Alexander Diedler adied...@tecracer.de: Hello, I mean a frontend Apache httpd and backend Tomcat server. Loadbalancing would be done by a hardware load balancer fronted to the Apache Webserver, so we should not balance the request two times. It should be only a Failovercluster. Best regards Alexander -Ursprüngliche Nachricht- Von: Ronald Klop (Mailing List) [mailto:ronald-mailingl...@base.nl] Gesendet: Donnerstag, 6. Oktober 2011 10:44 An: Tomcat Users List Betreff: Re: Preferred configuration with Hardware Loadbalancer What do you mean by Apache Webserver? Do you mean Apache Tomcat or Apache httpd? And do you want Failover (active-passive) or Loadbalancing (active-active)? Ronald. Op donderdag, 6 oktober 2011 10:36 schreef Alexander Diedler adied...@tecracer.de: Hello, I am just planning a Application cluster for Tomcat. We have a big hardware loadbalancer (Cisco) and three virtual servers. We talked about several configurations, but it is not clear for us, how to build a Tomcat cluster, with Failover and Session-Replication, but without Loadbalancing? E.g. the LB redirect the request to node 1. The Apache Webserver redirects the request to node2. So we have a double load-balancing, what ne would avoid. Best regards Alexander
Re: AW: Securing Tomcat cluster communication
A 'connector' is used between for example Apache httpd and Tomcat. It is not used between Tomcat nodes in a cluster. Ronald. Op donderdag, 6 oktober 2011 16:22 schreef Alexander Diedler adied...@tecracer.de: Hello, Please search for secret in http://tomcat.apache.org/connectors-doc/reference/workers.html Only requests from members with the same secret word will be acceped. Greetings Alexander -Ursprüngliche Nachricht- Von: Afkham Azeez [mailto:afk...@gmail.com] Gesendet: Donnerstag, 6. Oktober 2011 16:18 An: Tomcat Users List Betreff: Securing Tomcat cluster communication Hi folks, Is there a way to do authentication in Tribes when new members try to join a cluster so that unauthorized nodes cannot join in? Also, when clustering messages are sent back forth, how do we ensure security? Thanks Azeez
wiki: tomcat 7 changelog has old link
Hi, Since the branch of tomcat 7 the link on https://wiki.apache.org/tomcat/FAQ/KnownIssues is incorrect. I don't have an account to fix it. Cheers, Ronald.
Re: wiki: tomcat 7 changelog has old link
Aha, thanks. Fixed it. Op donderdag, 18 augustus 2011 14:00 schreef Mark Thomas ma...@apache.org: On 18/08/2011 11:13, Ronald Klop wrote: Hi, Since the branch of tomcat 7 the link on https://wiki.apache.org/tomcat/FAQ/KnownIssues is incorrect. I don't have an account to fix it. Anyone can create an account and once you have an account anyone can edit the wiki contents. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: IllegalStateException: The response object has been recycled and is no longer associated with this facade
Op woensdag, 17 augustus 2011 13:41 schreef Mark Thomas ma...@apache.org:
On 17/08/2011 12:36, Ronald Klop wrote:
Hi,
I did some experiments past days on my live servers and have more
information.
The problem occurs with 7.0.19 and 7.0.20 with the NIO connector, but
not with the BIO connector. In 7.0.16 it doesn't happen with the NIO
connector.
My code is not more than something like this (pseudocode):
doGet(...) {
File image = getFile(request.getParameter(...));
File resized = getFile(request.getParameter(...));
if (image.newerThan(resized)) {
resize(image, resized, size);
}
response.getOutputStream().write(resized.getContent());
}
So very straight forward and no fancy tricks with Response objects. This
worked for years since Tomcat 5 or 6.
Are you using javax.imageio?
Mark
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Is this imageio thing only with NIO+sendfile? If I disable sendfile in
server.xml I don't see the error anymore.
Ronald.
Re: IllegalStateException: The response object has been recycled and is no longer associated with this facade
Op zondag, 14 augustus 2011 23:46 schreef Konstantin Kolinko
knst.koli...@gmail.com:
2011/8/14 Ronald Klop ronald-mailingl...@base.nl:
I'm running Tomcat 7.0.19 to scale and serve images for use on a lot of
websites. Since the upgrade from 7.0.16 to 7.0.19 I get the following stacks
now and than.
java.lang.IllegalStateException: The response object has been recycled and
is no longer associated with this facade
(...)
Is this known? I didn't change code recently and I read it again and we are
not doing unusual things with the Reponse object. Any hints? Should I file a
bugreport?
It is more likely that a problem is in your code, not in Tomcat.
It looks like you accessed a Response that has already been recycled.
Usually it happens when response object is stored in a field that is
shared by several threads
(e.g. in a field in a Servlet, because a single Servlet instance is
shared by several threads).
In case if there really is a bug, can you reproduce this issue with
some sample code?
There were refactorings in connectors, so some subtle changes in
behaviour are possible, but thus far all such IllegalStateException
issues that I remember were application errors.
Recycling of facades can be turned on with a system property, and it
is always on when running with a security manager. Were you running
7.0.16 with security manager as well?
I'm going to upgrade to 7.0.20 this afternoon, but the release notes don't
mention this problem as solved.
Best regards,
Konstantin Kolinko
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Hi,
I did some experiments past days on my live servers and have more information.
The problem occurs with 7.0.19 and 7.0.20 with the NIO connector, but not with
the BIO connector. In 7.0.16 it doesn't happen with the NIO connector.
My code is not more than something like this (pseudocode):
doGet(...) {
File image = getFile(request.getParameter(...));
File resized = getFile(request.getParameter(...));
if (image.newerThan(resized)) {
resize(image, resized, size);
}
response.getOutputStream().write(resized.getContent());
}
So very straight forward and no fancy tricks with Response objects. This worked
for years since Tomcat 5 or 6.
Ronald.
Re: IllegalStateException: The response object has been recycled and is no longer associated with this facade
Op woensdag, 17 augustus 2011 13:41 schreef Mark Thomas ma...@apache.org:
On 17/08/2011 12:36, Ronald Klop wrote:
Hi,
I did some experiments past days on my live servers and have more
information.
The problem occurs with 7.0.19 and 7.0.20 with the NIO connector, but
not with the BIO connector. In 7.0.16 it doesn't happen with the NIO
connector.
My code is not more than something like this (pseudocode):
doGet(...) {
File image = getFile(request.getParameter(...));
File resized = getFile(request.getParameter(...));
if (image.newerThan(resized)) {
resize(image, resized, size);
}
response.getOutputStream().write(resized.getContent());
}
So very straight forward and no fancy tricks with Response objects. This
worked for years since Tomcat 5 or 6.
Are you using javax.imageio?
Mark
-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
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Sometimes. Mostly I run ImageMagick in a separate process. But sometimes it
does things with javax.imagio.
I'm curious about the link between them. And what happened in 7.0.19 that
triggers something new.
Ronald.
Re: IllegalStateException: The response object has been recycled and is no longer associated with this facade
Op woensdag, 17 augustus 2011 14:28 schreef Mark Thomas ma...@apache.org: On 17/08/2011 13:20, Ronald Klop wrote: Sometimes. Mostly I run ImageMagick in a separate process. But sometimes it does things with javax.imagio. I'm curious about the link between them. And what happened in 7.0.19 that triggers something new. Details in the archives. If you have a simple test case that demonstrates the problem that doesn't use imageio then I'd be interested. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Ok. I read the FAQ mentioned by Konstantin and I understand it. My ImageIO always writes to a File and never directly to the ServletOutputStream.. The communication between my servlet and the image resize module is a File. (Which I cache on the Tomcat node, so I only have to resize ones.) And I read some more archives, but they are about problems after reloading a Context, but I always restart my Tomcat nodes as I'm deploying new code and have only one Context. But I understand ImageIO can be troublesome. And I'm also interested in a simple test case. :-) I'm trying to figure out how to reproduce this. Ronald.
Re: IllegalStateException: The response object has been recycled and is no longer associated with this facade
Op woensdag, 17 augustus 2011 15:02 schreef Ronald Klop ronald-mailingl...@base.nl: Op woensdag, 17 augustus 2011 14:28 schreef Mark Thomas ma...@apache.org: On 17/08/2011 13:20, Ronald Klop wrote: Sometimes. Mostly I run ImageMagick in a separate process. But sometimes it does things with javax.imagio. I'm curious about the link between them. And what happened in 7.0.19 that triggers something new. Details in the archives. If you have a simple test case that demonstrates the problem that doesn't use imageio then I'd be interested. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Ok. I read the FAQ mentioned by Konstantin and I understand it. My ImageIO always writes to a File and never directly to the ServletOutputStream.. The communication between my servlet and the image resize module is a File. (Which I cache on the Tomcat node, so I only have to resize ones.) And I read some more archives, but they are about problems after reloading a Context, but I always restart my Tomcat nodes as I'm deploying new code and have only one Context. But I understand ImageIO can be troublesome. And I'm also interested in a simple test case. :-) I'm trying to figure out how to reproduce this. Ronald. Maybe this is of any interest from catalina.out on 7.0.19 with NIO. Long before the first exception about a recylced response facade I get this: Aug 15, 2011 10:55:07 AM org.apache.tomcat.util.net.NioEndpoint processSocket SEVERE: Error allocating socket processor java.lang.NullPointerException at org.apache.tomcat.util.net.NioEndpoint.processSocket(NioEndpoint.java:710) at org.apache.tomcat.util.net.NioEndpoint$Poller.processKey(NioEndpoint.java:1194) at org.apache.tomcat.util.net.NioEndpoint$Poller.run(NioEndpoint.java:1130) at java.lang.Thread.run(Thread.java:662) And some similar NPE's and a day later I get this: Aug 16, 2011 9:00:29 AM org.apache.coyote.AbstractProtocol$AbstractConnectionHandler process SEVERE: null java.lang.NullPointerException at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.release(Http11NioProtocol.java:231) at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.release(Http11NioProtocol.java:150) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:531) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1544) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Aug 16, 2011 9:00:42 AM org.apache.catalina.connector.CoyoteAdapter service SEVERE: An exception or error occurred in the container during the request processing java.lang.NullPointerException at org.apache.coyote.http11.InternalNioOutputBuffer.addToBB(InternalNioOutputBuffer.java:227) at org.apache.coyote.http11.InternalNioOutputBuffer.commit(InternalNioOutputBuffer.java:218) at org.apache.coyote.http11.AbstractHttp11Processor.action(AbstractHttp11Processor.java:698) at org.apache.coyote.Response.action(Response.java:170) at org.apache.coyote.Response.sendHeaders(Response.java:350) at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:317) at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:276) at org.apache.catalina.connector.Response.finishResponse(Response.java:501) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:432) at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:313) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1544) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Aug 16, 2011 9:00:42 AM org.apache.coyote.http11.AbstractHttp11Processor endRequest SEVERE: Error finishing response java.lang.NullPointerException at org.apache.coyote.http11.InternalNioOutputBuffer.flushBuffer(InternalNioOutputBuffer.java:252) at org.apache.coyote.http11.InternalNioOutputBuffer.endRequest(InternalNioOutputBuffer.java:144) at org.apache.coyote.http11.AbstractHttp11Processor.endRequest(AbstractHttp11Processor.java:1282) at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:356) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process
IllegalStateException: The response object has been recycled and is no longer associated with this facade
Hi, I'm running Tomcat 7.0.19 to scale and serve images for use on a lot of websites. Since the upgrade from 7.0.16 to 7.0.19 I get the following stacks now and than. java.lang.IllegalStateException: The response object has been recycled and is no longer associated with this facade at org.apache.catalina.connector.ResponseFacade.isCommitted(ResponseFacade.java:325) ~[catalina.jar:7.0.19] at org.apache.catalina.connector.ResponseFacade.setContentType(ResponseFacade.java:237) ~[catalina.jar:7.0.19] at javax.servlet.ServletResponseWrapper.setContentType(ServletResponseWrapper.java:123) ~[servlet-api.jar:3.0.FR] at nl.base.io.HttpUtils.sendBaseFileToBrowser(HttpUtils.java:366) ~[HttpUtils.class:na] at nl.base.servlets.objects.MediaServlet.process(MediaServlet.java:272) [MediaServlet.class:na] at nl.base.servlets.objects.MediaServlet.doPost(MediaServlet.java:66) [MediaServlet.class:na] at nl.base.servlets.objects.MediaServlet.doGet(MediaServlet.java:59) [MediaServlet.class:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:629) [servlet-api.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) [servlet-api.jar:na] I'm running with the security manager on, because I use RMI. And it runs on Debian 5 with Sun java 1.6.0_22 from the Debian pkg. Is this known? I didn't change code recently and I read it again and we are not doing unusual things with the Reponse object. Any hints? Should I file a bugreport? I'm going to upgrade to 7.0.20 this afternoon, but the release notes don't mention this problem as solved. Ronald.
Re: getAllClusterSessions gives OptionalDataException
Op vrijdag, 8 juli 2011 21:55 schreef Christopher Schultz ch...@christopherschultz.net: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ronald, On 7/8/2011 5:33 AM, Ronald Klop wrote: After some fun with debugging Tomcat on my live server (because I couldn't reproduce it in test) it looks like a concurrency bug in my own code. D'oh. I think I modify a HashMap which is serialized in the session. For some reason I don't get a ConcurrentModificationException, but in the byte[] in DeltaManager.handleALL_SESSION_DATA I had a HashMap with size 5, but I only saw 4 elements which gave the OptionalDataException. I now use a synchronized map and don't see the exception anymore (after 1 day of testing, so I don't cheer too loud yet). Definitely get back to us with an update. It would be nice to know that this problem turned out to be caused by the webapp and not Tomcat in some way. - -chris Hi, Today we had to do an update during work hours and all sessions were ok. So I consider this OptionalDataException solved for me. It was a not synchronized Map in the session which is updated more frequently now than in the past and triggered a race condition now. Greetings and thanks for responses and tips, Ronald.
Re: getAllClusterSessions gives OptionalDataException
Op donderdag, 7 juli 2011 18:03 schreef Filip Hanik - Dev Lists
devli...@hanik.com:
On 6/28/2011 2:31 AM, Konstantin Kolinko wrote:
2011/6/23 Ronald Klopronald-mailingl...@base.nl:
Hi,
I have an exception when one on my Tomcat nodes restarts. The session are
not synced and user complain about being logged out. I was running 6.0.32
and had the problem. Now I'm running a custom build of 6.0.33 from
yesterday. I added a little code which prints ' SEVERE: name=user'. The key
on which the sync fails while reading the value.
I looked into the java code in ObjectInputStream and it looks like some
inconsistency in the ObjectStream.
I have 4 nodes on Debian 5, sun-java6-jdk 6-22-0lenny1, seen the problem on
Tomcat 6.0.29, 6.0.32 and a custom build 6.0.33. I can't reproduce this
(yet) on my test environment, so debugging it is difficult without upset
customers.
Engine name=Catalina defaultHost=xxx.xxx.xxx
Realm className=org.apache.catalina.realm.UserDatabaseRealm
resourceName=UserDatabase /
Cluster
className=org.apache.catalina.ha.tcp.SimpleTcpCluster
Channel
className=org.apache.catalina.tribes.group.GroupChannel
Membership
className=org.apache.catalina.tribes.membership.McastService port=47727
/
/Channel
/Cluster
Host name=xxx.xxx.xxx
appBase=/data/webapps/crm-LIVE/deployed
unpackWARs=true autoDeploy=false
xmlValidation=false xmlNamespaceAware=true
/Host
/Engine
Can I provide more information? Where should I look.
NB: In some previous mails about another problem I thought that might be the
reason for my logout problem, that is why I tried 6.0.33-dev.
Ronald.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions
WARNING: Manager [crm.realworks.nl#], requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 0, 10,
110}:4000,{10, 0, 10, 110},4000, alive=45370885,id={-34 112 102 -93 -87 -88
77 18 -113 -30 62 8 62 -65 -112 -13 }, payload={}, command={}, domain={}, ].
This operation will timeout if no session state has been received within 60
seconds.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
waitForSendAllSessions
INFO: Manager [crm.realworks.nl#]; session state send at 6/23/11 5:49 PM
received in 304 ms.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions
WARNING: Manager [crm.realworks.nl#]: Drop message SESSION-ACCESSED inside
GET_ALL_SESSIONS sync phase start date 6/23/11 5:49 PM message date 6/23/11
5:49 PM
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaSession
readObject
SEVERE: name=user.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
deserializeSessions
SEVERE: IOException while loading persisted sessions:
java.io.OptionalDataException
java.io.OptionalDataException
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at java.util.HashMap.readObject(HashMap.java:1029)
(...)
Looking at ObjectInputStream sourced, the OptionalDataException is
thrown when the source stream is truncated.
It might be related to the following issue, fixed in Tomcat 7, but
never proposed for backport yet:
https://issues.apache.org/bugzilla/show_bug.cgi?id=50646
Tribes ByteMessage will get corrupted if message size exceeds the
underlying buffer size
that's what I thought, but the SessionMessage doesn't use ByteMessage
Best regards,
Konstantin Kolinko
Hi Konstantin,
The 'Tribes ByteMessage' issue didn't solve my problem.
But. After some fun with debugging Tomcat on my live server (because I couldn't
reproduce it in test) it looks like a concurrency bug in my own code. I think I
modify a HashMap which is serialized in the session. For some reason I don't
get a ConcurrentModificationException, but in the byte[] in
DeltaManager.handleALL_SESSION_DATA I had a HashMap with size 5, but I only saw
4 elements which gave the OptionalDataException.
I now use a synchronized map and don't see the exception anymore (after 1 day
of testing, so I don't cheer too loud yet).
Ronald.
Re: getAllClusterSessions gives OptionalDataException
I double checked. The version of Tomcat and the versions of Java are all the
same.
Ronald.
Op vrijdag, 24 juni 2011 03:25 schreef Filip Hanik - Dev Lists
devli...@hanik.com:
are there other versions of Apache Tomcat running in the same cluster?
Check the logs for what members are joining the cluster, then check what
version they are
best
Filip
On 6/23/2011 10:14 AM, Ronald Klop wrote:
Hi,
I have an exception when one on my Tomcat nodes restarts. The session are not
synced and user complain about being logged out. I was running 6.0.32 and had the
problem. Now I'm running a custom build of 6.0.33 from yesterday. I added a little code
which prints ' SEVERE: name=user'. The key on which the sync fails while reading
the value.
I looked into the java code in ObjectInputStream and it looks like some
inconsistency in the ObjectStream.
I have 4 nodes on Debian 5, sun-java6-jdk 6-22-0lenny1, seen the problem on
Tomcat 6.0.29, 6.0.32 and a custom build 6.0.33. I can't reproduce this (yet) on
my test environment, so debugging it is difficult without upset customers.
Engine name=Catalina defaultHost=xxx.xxx.xxx
Realm className=org.apache.catalina.realm.UserDatabaseRealm
resourceName=UserDatabase /
Cluster className=org.apache.catalina.ha.tcp.SimpleTcpCluster
Channel className=org.apache.catalina.tribes.group.GroupChannel
Membership className=org.apache.catalina.tribes.membership.McastService
port=47727 /
/Channel
/Cluster
Host name=xxx.xxx.xxx
appBase=/data/webapps/crm-LIVE/deployed
unpackWARs=true autoDeploy=false
xmlValidation=false xmlNamespaceAware=true
/Host
/Engine
Can I provide more information? Where should I look.
NB: In some previous mails about another problem I thought that might be the
reason for my logout problem, that is why I tried 6.0.33-dev.
Ronald.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions
WARNING: Manager [crm.realworks.nl#], requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 0, 10, 110}:4000,{10,
0, 10, 110},4000, alive=45370885,id={-34 112 102 -93 -87 -88 77 18 -113 -30 62 8 62 -65
-112 -13 }, payload={}, command={}, domain={}, ]. This operation will timeout if no
session state has been received within 60 seconds.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
waitForSendAllSessions
INFO: Manager [crm.realworks.nl#]; session state send at 6/23/11 5:49 PM
received in 304 ms.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions
WARNING: Manager [crm.realworks.nl#]: Drop message SESSION-ACCESSED inside
GET_ALL_SESSIONS sync phase start date 6/23/11 5:49 PM message date 6/23/11 5:49
PM
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaSession
readObject
SEVERE: name=user.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
deserializeSessions
SEVERE: IOException while loading persisted sessions:
java.io.OptionalDataException
java.io.OptionalDataException
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at java.util.HashMap.readObject(HashMap.java:1029)
at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at
org.apache.catalina.ha.session.DeltaSession.readObject(DeltaSession.java:655)
at
org.apache.catalina.ha.session.DeltaSession.readObjectData(DeltaSession.java:481)
at
org.apache.catalina.ha.session.DeltaManager.deserializeSessions(DeltaManager.java:745)
at
org.apache.catalina.ha.session.DeltaManager.handleALL_SESSION_DATA(DeltaManager.java:1583)
at
org.apache.catalina.ha.session.DeltaManager.messageReceived(DeltaManager.java:1440)
at
org.apache.catalina.ha.session.DeltaManager.messageDataReceived(DeltaManager.java:1173)
at
org.apache.catalina.ha.session.ClusterSessionListener.messageReceived(ClusterSessionListener.java
getAllClusterSessions gives OptionalDataException
Hi,
I have an exception when one on my Tomcat nodes restarts. The session are not
synced and user complain about being logged out. I was running 6.0.32 and had
the problem. Now I'm running a custom build of 6.0.33 from yesterday. I added a
little code which prints ' SEVERE: name=user'. The key on which the sync fails
while reading the value.
I looked into the java code in ObjectInputStream and it looks like some
inconsistency in the ObjectStream.
I have 4 nodes on Debian 5, sun-java6-jdk 6-22-0lenny1, seen the problem on
Tomcat 6.0.29, 6.0.32 and a custom build 6.0.33. I can't reproduce this (yet)
on my test environment, so debugging it is difficult without upset customers.
Engine name=Catalina defaultHost=xxx.xxx.xxx
Realm className=org.apache.catalina.realm.UserDatabaseRealm
resourceName=UserDatabase /
Cluster
className=org.apache.catalina.ha.tcp.SimpleTcpCluster
Channel
className=org.apache.catalina.tribes.group.GroupChannel
Membership
className=org.apache.catalina.tribes.membership.McastService port=47727 /
/Channel
/Cluster
Host name=xxx.xxx.xxx
appBase=/data/webapps/crm-LIVE/deployed
unpackWARs=true autoDeploy=false
xmlValidation=false xmlNamespaceAware=true
/Host
/Engine
Can I provide more information? Where should I look.
NB: In some previous mails about another problem I thought that might be the
reason for my logout problem, that is why I tried 6.0.33-dev.
Ronald.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions
WARNING: Manager [crm.realworks.nl#], requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 0, 10,
110}:4000,{10, 0, 10, 110},4000, alive=45370885,id={-34 112 102 -93 -87 -88 77
18 -113 -30 62 8 62 -65 -112 -13 }, payload={}, command={}, domain={}, ]. This
operation will timeout if no session state has been received within 60 seconds.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
waitForSendAllSessions
INFO: Manager [crm.realworks.nl#]; session state send at 6/23/11 5:49 PM
received in 304 ms.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions
WARNING: Manager [crm.realworks.nl#]: Drop message SESSION-ACCESSED inside
GET_ALL_SESSIONS sync phase start date 6/23/11 5:49 PM message date 6/23/11
5:49 PM
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaSession readObject
SEVERE: name=user.
Jun 23, 2011 5:49:47 PM org.apache.catalina.ha.session.DeltaManager
deserializeSessions
SEVERE: IOException while loading persisted sessions:
java.io.OptionalDataException
java.io.OptionalDataException
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at java.util.HashMap.readObject(HashMap.java:1029)
at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at
org.apache.catalina.ha.session.DeltaSession.readObject(DeltaSession.java:655)
at
org.apache.catalina.ha.session.DeltaSession.readObjectData(DeltaSession.java:481)
at
org.apache.catalina.ha.session.DeltaManager.deserializeSessions(DeltaManager.java:745)
at
org.apache.catalina.ha.session.DeltaManager.handleALL_SESSION_DATA(DeltaManager.java:1583)
at
org.apache.catalina.ha.session.DeltaManager.messageReceived(DeltaManager.java:1440)
at
org.apache.catalina.ha.session.DeltaManager.messageDataReceived(DeltaManager.java:1173)
at
org.apache.catalina.ha.session.ClusterSessionListener.messageReceived(ClusterSessionListener.java:92)
at
org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:901)
at
org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:882)
at
org.apache.catalina.tribes.group.GroupChannel.messageReceived(GroupChannel.java:269)
at
Re: error in clustering: NullPointerException at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength
Op donderdag, 16 juni 2011 18:55 schreef Christopher Schultz ch...@christopherschultz.net: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ronald, On 6/16/2011 11:40 AM, Ronald Klop wrote: I created a release package. First had to find a computer with Windows, because it needs wine (I didn't want to learn wine on FreeBSD today), but ok it builds now. Wait, what? Why do you need Wine? Now I'll wait for my precious bug fix to get committed to 6. :-) I've voted for the fix. ;) - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk36NZ0ACgkQ9CaO5/Lv0PAZ/ACeMUI4mDW6Y7t0Xu3+2OMPJmSH BgAAn359rasGTifpr81xlrnzfdDtOzZg =jBjN -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Chris, thanks for the vote. Regarding 'wine'. I followed all steps from BUILDING.txt. The last one is below. Maybe I don't need the 'release' step, but it makes deployment in my network easy, because we arranged things around the .tar.gz files from the Tomcat site. Darn, I look closer now and see the 'unless=skip.installer' in dist.xml. Thanks, I'm very close to debugging Tomcat myself. Is it easy to edit Tomcat in a Eclipse project? Or what do you guys use? Ronald. $ ant -f dist.xml release Buildfile: /data/software/tomcat/tc6.0.x/trunk/dist.xml clean: [delete] Deleting directory /data/software/tomcat/tc6.0.x/trunk/output/deployer [delete] Deleting directory /data/software/tomcat/tc6.0.x/trunk/output/dist dist-prepare: [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist/bin [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist/conf [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist/lib [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist/logs [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist/temp [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist/webapps [mkdir] Created dir: /data/software/tomcat/tc6.0.x/trunk/output/dist/work dist-static: [copy] Copying 4 files to /data/software/tomcat/tc6.0.x/trunk/output/dist [copy] Copying 22 files to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin [copy] Copying 15 files to /data/software/tomcat/tc6.0.x/trunk/output/dist/lib [copy] Copying 7 files to /data/software/tomcat/tc6.0.x/trunk/output/dist/conf [copy] Copying 442 files to /data/software/tomcat/tc6.0.x/trunk/output/dist/webapps [touch] Creating /data/software/tomcat/tc6.0.x/trunk/output/dist/temp/safeToDelete.tmp [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin/x64 [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin/i64 [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin/x64 [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist/bin/i64 dist-deployer: [copy] Copying 7 files to /data/software/tomcat/tc6.0.x/trunk/output/deployer/lib [jar] Building jar: /data/software/tomcat/tc6.0.x/trunk/output/deployer/lib/catalina-deployer.jar [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/deployer [copy] Copying 2 files to /data/software/tomcat/tc6.0.x/trunk/output/deployer [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/deployer installer: [echo] Builds a Windows installer based on Nullsoft Installer [copy] Copying 41 files to /data/software/tomcat/tc6.0.x/trunk/output/dist [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist [copy] Copying 1 file to /data/software/tomcat/tc6.0.x/trunk/output/dist BUILD FAILED /data/software/tomcat/tc6.0.x/trunk/dist.xml:330: Execute failed: java.io.IOException: Cannot run program wine (in directory /data/software/tomcat/tc6.0.x/trunk/output/dist): java.io.IOException: error=2, No such file or directory at java.lang.ProcessBuilder.start(ProcessBuilder.java:475) at java.lang.Runtime.exec(Runtime.java:610) at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:862) at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:481
Re: error in clustering: NullPointerException at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength
A little lobby is started: http://marc.info/?l=tomcat-devm=130805807619349w=2 Thanks, but no reply yet from jfclere. He must be busy. I'm not familiar with the inner workings of the Tomcat organization, but shouldn't releases be less dependent on one person? Ronald. Op dinsdag, 14 juni 2011 23:59 schreef Christopher Schultz ch...@christopherschultz.net: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ronald, On 6/14/2011 6:23 AM, Ronald Klop wrote: I see the issue if solved in an upcoming version of Tomcat. Thank you very much for that. But can I expect an upcoming version of Tomcat 6.0 in the not too distant future? At the tomcat-dev list I only see recent votings for 7.0.x. Who normally is the initiator of the 6.x release cycle? I guess anyone can request a new version... whether anyone will roll it is up to them :) I believe Jean-Frederic Clere is the one who usually does TC 6.x releases: http://tomcat.apache.org/tomcat-6.0-doc/changelog.html - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk332cEACgkQ9CaO5/Lv0PBB7ACfYNMPHeJDlltC9HHdKiC/VAml RB4AniwAT6RTwBYNLG5H0nYQmv3hOzG3 =DmoN -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: error in clustering: NullPointerException at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength
Good tip. I created a release package. First had to find a computer with Windows, because it needs wine (I didn't want to learn wine on FreeBSD today), but ok it builds now. Now I'll wait for my precious bug fix to get committed to 6. :-) Ronald. Op donderdag, 16 juni 2011 16:54 schreef Christopher Schultz ch...@christopherschultz.net: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ronald, On 6/16/2011 6:39 AM, Ronald Klop wrote: A little lobby is started: http://marc.info/?l=tomcat-devm=130805807619349w=2 Thanks, but no reply yet from jfclere. He must be busy. I'm not familiar with the inner workings of the Tomcat organization, but shouldn't releases be less dependent on one person? They aren't dependent on one person, it's just that one person usually gets into the groove of tagging the code, rolling the release, calling for the vote, doing their own personal testing, uploading the packages, updating the website, making announcements, etc. Anyone can do all that, honestly, but the generally speaking the torch of release manager seems to pass from one committer to another every few months or so. Looks like jfclere was doing them from around the end of 2009 until now, and before that it was Remmy. If you're dying to try 6.0.33, feel free to just check out the 6.0 trunk - -- it gets very little activity other than reviewed bug fixes, etc. so if you build it yourself you should be good-to-go. When the official package is released, you can upgrade but it will likely be the exact same code. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk36GREACgkQ9CaO5/Lv0PCtqgCfVqFGf/nfwd52GDzfW9RzwI3S 1jAAnjqRKdMjkWdQ1ME8z/3lHCohjxkY =4S34 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: error in clustering: NullPointerException at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength
Hi, I see the issue if solved in an upcoming version of Tomcat. Thank you very much for that. But can I expect an upcoming version of Tomcat 6.0 in the not too distant future? At the tomcat-dev list I only see recent votings for 7.0.x. Who normally is the initiator of the 6.x release cycle? Ronald. Op vrijdag, 10 juni 2011 13:03 schreef Ronald Klop ronald-mailingl...@base.nl: Hi, I'm running a 4 node cluster and seeing the same exception as described in this issue. https://issues.apache.org/bugzilla/show_bug.cgi?id=51306 What can I do to workaround it or what can I information can I provide to help? I'm running 6.0.32 with a securitymanager on Debian 5. Java version 1.6.0_22 from debian sun-java pkgs. My clusterconfig is this: Engine name=Catalina defaultHost=.. Realm className=org.apache.catalina.realm.UserDatabaseRealm resourceName=UserDatabase / Cluster className=org.apache.catalina.ha.tcp.SimpleTcpCluster Channel className=org.apache.catalina.tribes.group.GroupChannel Membership className=org.apache.catalina.tribes.membership.McastService port=47727 / /Channel /Cluster !-- Zorg dat de appBase regel direct na de 'Host name' regel staat -- Host name=.. appBase=/data/webapps/xxx-xxx/deployed unpackWARs=true autoDeploy=false xmlValidation=false xmlNamespaceAware=true /Host /Engine The exception from my catalina.out. Jun 10, 2011 11:08:52 AM org.apache.catalina.ha.session.DeltaManager messageReceived SEVERE: Manager [crm.realworks.nl#]: Unable to receive message through TCP channel java.lang.NullPointerException at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength(ObjectOutputStream.java:2106) at java.io.ObjectOutputStream$BlockDataOutputStream.writeUTF(ObjectOutputStream.java:1977) at java.io.ObjectOutputStream.writeUTF(ObjectOutputStream.java:849) at org.apache.catalina.ha.session.DeltaRequest.writeExternal(DeltaRequest.java:267) at org.apache.catalina.ha.session.DeltaRequest.serialize(DeltaRequest.java:287) at org.apache.catalina.ha.session.DeltaManager.serializeDeltaRequest(DeltaManager.java:716) at org.apache.catalina.ha.session.DeltaManager.requestCompleted(DeltaManager.java:1224) at org.apache.catalina.ha.session.DeltaSession.expire(DeltaSession.java:403) at org.apache.catalina.ha.session.DeltaManager.handleSESSION_EXPIRED(DeltaManager.java:1546) at org.apache.catalina.ha.session.DeltaManager.messageReceived(DeltaManager.java:1452) at org.apache.catalina.ha.session.DeltaManager.messageDataReceived(DeltaManager.java:1173) at org.apache.catalina.ha.session.ClusterSessionListener.messageReceived(ClusterSessionListener.java:92) at org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:901) at org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:882) at org.apache.catalina.tribes.group.GroupChannel.messageReceived(GroupChannel.java:269) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.interceptors.TcpFailureDetector.messageReceived(TcpFailureDetector.java:110) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.ChannelCoordinator.messageReceived(ChannelCoordinator.java:241) at org.apache.catalina.tribes.transport.ReceiverBase.messageDataReceived(ReceiverBase.java:225) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.drainChannel(NioReplicationTask.java:188) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.run(NioReplicationTask.java:91) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Ronald.
error in clustering: NullPointerException at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength
Hi, I'm running a 4 node cluster and seeing the same exception as described in this issue. https://issues.apache.org/bugzilla/show_bug.cgi?id=51306 What can I do to workaround it or what can I information can I provide to help? I'm running 6.0.32 with a securitymanager on Debian 5. Java version 1.6.0_22 from debian sun-java pkgs. My clusterconfig is this: Engine name=Catalina defaultHost=.. Realm className=org.apache.catalina.realm.UserDatabaseRealm resourceName=UserDatabase / Cluster className=org.apache.catalina.ha.tcp.SimpleTcpCluster Channel className=org.apache.catalina.tribes.group.GroupChannel Membership className=org.apache.catalina.tribes.membership.McastService port=47727 / /Channel /Cluster !-- Zorg dat de appBase regel direct na de 'Host name' regel staat -- Host name=.. appBase=/data/webapps/xxx-xxx/deployed unpackWARs=true autoDeploy=false xmlValidation=false xmlNamespaceAware=true /Host /Engine The exception from my catalina.out. Jun 10, 2011 11:08:52 AM org.apache.catalina.ha.session.DeltaManager messageReceived SEVERE: Manager [crm.realworks.nl#]: Unable to receive message through TCP channel java.lang.NullPointerException at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength(ObjectOutputStream.java:2106) at java.io.ObjectOutputStream$BlockDataOutputStream.writeUTF(ObjectOutputStream.java:1977) at java.io.ObjectOutputStream.writeUTF(ObjectOutputStream.java:849) at org.apache.catalina.ha.session.DeltaRequest.writeExternal(DeltaRequest.java:267) at org.apache.catalina.ha.session.DeltaRequest.serialize(DeltaRequest.java:287) at org.apache.catalina.ha.session.DeltaManager.serializeDeltaRequest(DeltaManager.java:716) at org.apache.catalina.ha.session.DeltaManager.requestCompleted(DeltaManager.java:1224) at org.apache.catalina.ha.session.DeltaSession.expire(DeltaSession.java:403) at org.apache.catalina.ha.session.DeltaManager.handleSESSION_EXPIRED(DeltaManager.java:1546) at org.apache.catalina.ha.session.DeltaManager.messageReceived(DeltaManager.java:1452) at org.apache.catalina.ha.session.DeltaManager.messageDataReceived(DeltaManager.java:1173) at org.apache.catalina.ha.session.ClusterSessionListener.messageReceived(ClusterSessionListener.java:92) at org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:901) at org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:882) at org.apache.catalina.tribes.group.GroupChannel.messageReceived(GroupChannel.java:269) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.interceptors.TcpFailureDetector.messageReceived(TcpFailureDetector.java:110) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.ChannelCoordinator.messageReceived(ChannelCoordinator.java:241) at org.apache.catalina.tribes.transport.ReceiverBase.messageDataReceived(ReceiverBase.java:225) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.drainChannel(NioReplicationTask.java:188) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.run(NioReplicationTask.java:91) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Ronald.
tomcat 6.0.33?
Hi,
while (true) {
sleep(some weeks);
askForTomcat(version + 1);
}
I know, I know. This question returns, now and then.
But is there a possibility for the Tomcat developers to start a vote about
6.0.33? I would like to use it, because there are some bugs fixed, which I'm
seeing.
I read the archives of tomcat-dev, and didn't see any showstoppers for 6 yet.
Or is there another reason not to make a release?
Thanks in advance, if this is possible.
Ronald.
Re: [OT] Protecting against HTTP response splitting
Op woensdag, 30 maart 2011 22:12 schreef Christopher Schultz ch...@christopherschultz.net: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 All, I was playing around with findbugs today and saw a security warning I've never seen before: HTTP parameter directly written to HTTP header output in [somefile.java]. I read a bit more into it and the warning was correct, I was doing something akin to the following: response.sendRedirect(request.getParameter(returnURL)); Aside from not running the redirect through response.encodeRedirectURL, there's another potential problem, there: the user can specify a return URL that breaks the HTTP response and can do some evil things. I verified that I can break my own response in this way by adding %0d%0a and then more stuff to my returnURL parameter and I magically escaped the Location header of the response. The suggested mitigation is to URL-encode the value before putting it into the header. I was wondering if anyone was doing anything like this and has a suggestion for allowing the UI to control it's own return to URLs in a safe way. We'd like to use returnURL values that allow for query parameters to be passed-back to the target URL so we can't just blindly URL-encode the URL otherwise those parameters will become part of the URL and not the query string. I suppose I could also just look for and replace whitespace, which is not legal in a URL anyway. Any other thoughts of suggestions? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk2TjpgACgkQ9CaO5/Lv0PDAwQCfa8sSdRzAE7ZNjv0P1s/qD95L FGEAnjA8ZbobU/8s90lE2huLx/+B2smV =vJ6w -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org I would say that some proper input validation solves your problem. Does new URL(redirectURL).toString() give an exception on invalid url's? Ronald.
Re: The Maximum limit of an http header size
It is limited by the amount of memory in your JVM. Ronald. Op vrijdag, 18 maart 2011 05:26 schreef rajini maski rajinima...@gmail.com: Any idea about what might be the maximum limit of a maxHttpHeadSize. The maximum size of the request and response HTTP header, specified in bytes. If not specified, this attribute is set to 4096 (4 KB). What is the maximum limit? If you try to submit too long a GET query to Solr, then Tomcat will reject your HTTP request on the grounds that the HTTP header is too large; symptoms may include an HTTP 400 Bad Request error or (if you execute the query in a web browser) a blank browser window.If you need to enable longer queries, you can set the maxHttpHeaderSize attribute on the HTTP Connector element in your server.xml file. The default value is 4K. I have this case where in my request query has size upto 9-15kb... What is the maximum limit ? Rajani Maski
Re: The Maximum limit of an http header size
Ai. Touche. Op vrijdag, 18 maart 2011 11:43 schreef Mark Thomas ma...@apache.org: On 18/03/2011 09:51, Ronald Klop wrote: It is limited by the amount of memory in your JVM. Interesting guess but wrong. The maximum size for the http headers for any one request is Integer.MAX_VALUE, 2^31-1. I would remind folks that since this is open source you can just look at the source code to answer this and many other questions. If you want some pointers on where to look for a particular piece of info or for how a particular feature is implemented, please just ask on this list. Mark Ronald. Op vrijdag, 18 maart 2011 05:26 schreef rajini maski rajinima...@gmail.com: Any idea about what might be the maximum limit of a maxHttpHeadSize. The maximum size of the request and response HTTP header, specified in bytes. If not specified, this attribute is set to 4096 (4 KB). What is the maximum limit? If you try to submit too long a GET query to Solr, then Tomcat will reject your HTTP request on the grounds that the HTTP header is too large; symptoms may include an HTTP 400 Bad Request error or (if you execute the query in a web browser) a blank browser window.If you need to enable longer queries, you can set the maxHttpHeaderSize attribute on the HTTP Connector element in your server.xml file. The default value is 4K. I have this case where in my request query has size upto 9-15kb... What is the maximum limit ? Rajani Maski - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: java.io.NotSerializableException: org.apache.catalina.realm.GenericPrincipal
Op vrijdag, 11 maart 2011 13:32 schreef Ronald Klop ronald-mailingl...@base.nl: Hi, https://issues.apache.org/bugzilla/show_bug.cgi?id=47502 Because this issue is fixed I re-enabled using the security-constraint in web.xml to protect some pages in stead of using my own workaround. But now I get a somewhat similar exception. This is running Tomcat 6.0.32 (directly from your tar.gz) on Debian 5 in a cluster of 3 nodes. I access my password protected pages over https. Mar 11, 2011 1:20:48 PM org.apache.catalina.ha.session.DeltaManager requestCompleted SEVERE: Unable to serialize delta request for sessionid [7D6D6A80C080C132F7EDCDAA3DFCEFB7] java.io.NotSerializableException: org.apache.catalina.realm.GenericPrincipal at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) at java.util.LinkedList.writeObject(LinkedList.java:943) at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:143) at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1677) at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:462) at javax.security.auth.Subject$SecureSet.writeObject(Subject.java:1281) at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518) at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:422) at java.util.Collections$SynchronizedCollection.writeObject(Collections.java:1602) at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) Should I file an issue? Is this already known? Ronald. Am I the only person with this? It is very easy reproducable and it looks like a bug in Tomcat code. Ronald.
java.io.NotSerializableException: org.apache.catalina.realm.GenericPrincipal
Hi, https://issues.apache.org/bugzilla/show_bug.cgi?id=47502 Because this issue is fixed I re-enabled using the security-constraint in web.xml to protect some pages in stead of using my own workaround. But now I get a somewhat similar exception. This is running Tomcat 6.0.32 (directly from your tar.gz) on Debian 5 in a cluster of 3 nodes. I access my password protected pages over https. Mar 11, 2011 1:20:48 PM org.apache.catalina.ha.session.DeltaManager requestCompleted SEVERE: Unable to serialize delta request for sessionid [7D6D6A80C080C132F7EDCDAA3DFCEFB7] java.io.NotSerializableException: org.apache.catalina.realm.GenericPrincipal at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) at java.util.LinkedList.writeObject(LinkedList.java:943) at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:143) at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1677) at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:462) at javax.security.auth.Subject$SecureSet.writeObject(Subject.java:1281) at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518) at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:422) at java.util.Collections$SynchronizedCollection.writeObject(Collections.java:1602) at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) Should I file an issue? Is this already known? Ronald.
Re: [OT] OutOfMemoryError: GC overhead limit exceeded
Op woensdag, 16 februari 2011 18:17 schreef Christopher Schultz ch...@christopherschultz.net: Chuck, On 2/16/2011 11:37 AM, Caldarale, Charles R wrote: From: Christopher Schultz [mailto:ch...@christopherschultz.net] Subject: Re: [OT] OutOfMemoryError: GC overhead limit exceeded Here's what jmap reports this morning: PS Old Generation capacity = 134217728 (128.0MB) used = 61911720 (59.043617248535156MB) free = 72306008 (68.95638275146484MB) 46.12782597541809% used Interesting. Something must have broken loose overnight. Definitely. It may have broken loose much earlier... I just didn't observe it again after my initial post last night. Does this look healthy enough to continue, or should I schedule a restart ASAP? I'd let it run, and see what happens. :) Should I be concerned that neither jstack not jmap will run against the JVM unless I specify the -F switch? Thanks, - -chris I see the same problem with jstack and friends if a process is gc'ing a lot. Ronald.
Re: [OT] OutOfMemoryError: GC overhead limit exceeded
Op woensdag, 16 februari 2011 19:18 schreef Christopher Schultz ch...@christopherschultz.net: Ronald, On 2/16/2011 12:48 PM, Ronald Klop wrote: I see the same problem with jstack and friends if a process is gc'ing a lot. Interesting. I don't have verbose GC enabled (can you enable that after JVM launch using JConsole or something like that?), but the process doesn't seem to be using a ton of CPU time which I would expect from a very active GC. Do you observe this only when GC is /currently/ active or after there has been a lot of GC activity. I'm wondering if the JVM is in a state where everything is working properly except that one small things has broken and prevents these tools from working without sprinkling the force magic onto them. Thanks, - -chris Where it is /currently/ active. I don't do much jstack/jmap if there is no problem, so can't really say something about it. Ronald.
Re: mail.jar, activation.jar and classloading
For the record: JAF (activation.jar) is already in Java 6 (and that sucks :-)). Op woensdag, 26 januari 2011 11:52 schreef Michael Ludwig mil...@gmx.de: What is special about mail.jar (and activation.jar) that requires putting them into the common.loader? Quote from the Tomcat docs: Unpackage the distribution(s) and place mail.jar (and activation.jar if required) into $CATALINA_HOME/lib so the JAR(s) is(are) available to Tomcat during the initialization of the mail Session Resource. http://tomcat.apache.org/tomcat-6.0-doc/jndi-resources-howto.html This question is spawned by a recent thread on the Ant mailing list, where the same question was raised in the context of classloading issues, but not answered. Mail task with mail.jar activation.jar out of lib folder http://ant.markmail.org/thread/ojjm7g5otejua33i Thanks. -- Michael Ludwig - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Is memleak in tomcat 7.0.5 also in tomcat 6.0.30?
Op donderdag, 20 januari 2011 17:03 schreef Mark Thomas ma...@apache.org: On 20/01/2011 15:45, Mark Thomas wrote: On 20/01/2011 15:29, Mark Thomas wrote: On 20/01/2011 11:50, Ronald Klop wrote: Hi, In this mail thread there is mention of a memory leak which is fixed in Tomcat 7.0.6. http://marc.info/?l=tomcat-userm=129487211630075w=2 Is it possible that this leak also exists in 6.0.30 (and not in 6.0.29)? We are seeing problems since 6.0.30 with the Nio connector. Just a quick question to rule this option out. Not a chance. I introduced the bug in 7.0.x with some Servlet 3 re-factoring. That re-factoring was not back-ported to 6.0.x. It is easy to confirm. With the leak, you would see one Http11NioProcessor object on the heap for every HTTP request made. An OOME soon followed. Given that there have been two reports of this, I may need to take that back. Let me do some tests. /me swears loudly and eats words re the Not a chance comment. The re-factoring wasn't back-ported but a few lines of code were [1] as a follow up to a fix in a similar area. Those few lines introduced this bug. This makes the NIO connector in 6.0.30 pretty much useless. I'll get the process started to fix this on the dev list. Mark [1] http://svn.apache.org/viewvc?view=revisionrevision=1033341 Thanks a lot for looking into this! I was just planning to put some time and effort in making a test case when I saw your last mail. I will visit a Tomcat conference some day and offer you a beer or two. :-) Ronald.
Re: servlets under tomcat5 consume huge CPU usage
Su to the user running tomcat. Run 'jps'. Find the pid of the process running 'Bootstrap'. Run 'jstack pid'. This gives you the thread dump. The id's of the threads (in hex) correspond to the pid's (in decimal) of the threads in ps -H or top with threads on. You can also find the pid with ps like you are likely used to. Ronald. Op woensdag, 19 januari 2011 11:05 schreef Petr Hracek phrac...@gmail.com: Dear users, I do not understand correctly. I am linux administrator but the command like 'thread dump' is not existing. Do you have any example? Thank you in advance Petr 2011/1/19 Mark Thomas ma...@apache.org: On 19/01/2011 08:29, Petr Hracek wrote: Dear tomcat users, I would like to ask you on the some thing regarding servlets running under tomcat 5 linux OS. How could I detect if servlet is running or not? Output of command ps -ef | grep java does not help me enought. I could not catch what java process is used by servlets Are there any special setting in tomcat5 which could show me more information? Use a thread dump. You can match thread IDs with ps output if you need to. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Best Regards / S pozdravem Petr Hracek - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
7.0.6 NPE in cluster syncing
Hi, Today I upgraded Tomcat from 7.0.5 to 7.0.6. Now I have these errors in de logs. Jan 14, 2011 4:24:50 PM org.apache.catalina.ha.tcp.ReplicationValve sendReplicationMessage SEVERE: Unable to perform replication request. java.lang.NullPointerException at org.apache.catalina.ha.tcp.ReplicationValve.isRequestWithoutSessionChange(ReplicationValve.java:554) at org.apache.catalina.ha.tcp.ReplicationValve.sendSessionReplicationMessage(ReplicationValve.java:488) at org.apache.catalina.ha.tcp.ReplicationValve.sendReplicationMessage(ReplicationValve.java:404) at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:349) at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:218) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:380) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) And I loose my session when the loadbalancer sends me to another server. Can these happen because I have migrated sessions from 7.0.5 to 7.0.6 while upgrading one node at a time? Or is this a bug in 7.0.6? Ronald.
Re: How to configure Tomcat/Coyote to deliver a P3P Header on Every Request
We do this with a filter mapped to /*. Ronald. Op vrijdag, 14 januari 2011 21:32 schreef Joseph Morgan joseph.mor...@ignitesales.com: Using Tomcat 6.0.13, how do we configure the Coyote server to deliver a P3P header on every request, even if for a JavaScript, Image, CSS, etc? Joseph M. Morgan Ignite Sales, Inc. Director of Technology and Operations Office 972-789-5523 Email: joseph.mor...@ignitesales.com Web: www.ignitesales.com Guaranteed Increase in Core Revenue for Banks
Re: Need help in understanding tomcat thread dump
Op dinsdag, 11 januari 2011 12:11 schreef Amol Puglia amolcpug...@yahoo.com: Hello Team, I have taken thread dump for tomcat. I have analyzed it using Thread dump analyzer. After reading thread dump i am unable to point which thread is exactly causing the issue. kindly guide me to read thread dumps. Following is the one of the thread from the thread dump output. TP-Processor50 daemon prio=5 tid=0x00449ea8 nid=0x56 waiting on condition [9427e000..9427fc30] at java.lang.Thread.sleep(Native Method) at com.ericsson.eai.b2b.MUXServlet.doPost(MUXServlet.java:506) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678) at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:534) What is the issue? (Was there another mail that I missed?) Ronald.
Re: Apache Process going high even after restart of backend server tomcat
In 'the other thread' there is still the question open of why there is Thread.sleep() in the MuxServlet. Can be a reason for a lot of open connections in the httpd server. But until there is more information about the problem I don't have anything to add to this discussion anymore. Ronald. Op dinsdag, 11 januari 2011 14:23 schreef André Warnier a...@ice-sa.com: Amol Puglia wrote: Hello Andre Warnier, Thanks for the response. I am talking about apache web server whose process count is increasiing to 259 and not coming down. I would like to know why process count is increasing and not coming down. Please help me to toublleshoot this issue.Let em know in case you need further information. I am extremely tempted to answer that if the problem is at the Apache httpd server level, then it is not our problem on this list. We deal only with Tomcat. But someone else already answered that apparently. So I'll make another effort. To answer your question : we don't know. There can be a million reasons. Some of these reasons can have to do with the back-end Tomcat, but that is only a possibility. It may have nothing to do with Tomcat at all. One possibility is that there are just many user requests coming in to your Apache httpd server, and it is not fast enough to handle the load. So, in order to stay on this list, what makes you think that the problem has anything to do with the back-end Tomcat ? - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: How to disable chunked encoding for the Http11NioProtocol connector.
What is the overhead of ending a tcp connection and creating a new one? Because you are removing the benefits of keep-alive here. Compare that with sending 6 extra bytes in a IP-packet that you are sending anyway. Ronald. Op woensdag, 5 januari 2011 16:29 schreef ilya goberman gober...@msn.com: Mark, overhead of chunked encoding can be significant. My typical message is about 50 bytes and chunked encoding takes 6 bytes per message: about 12%. I use JSON protocol that is already compressed (the way JSON can be compressed). Using Connection: close with Content-Length header omitted is perfectly valid from HTTP perspective. The end of response is detected by terminating connection on the server side. In fact some browsers have problems detecting connection termination (and host of other issues) related to the chunked encoding. While I understand it is not a Tomcat issue, it will score some points for Tomcat if this is addressed by adding a configuration option. Thanks Date: Wed, 5 Jan 2011 06:14:18 + From: ma...@apache.org To: users@tomcat.apache.org Subject: Re: How to disable chunked encoding for the Http11NioProtocol connector. On 05/01/2011 05:04, ilya goberman wrote: Hi, I use NIO HTTP Tomcat connector org.apache.coyote.Http11NioProtocol to implement Comet streaming to browsers and mobile devices. I would like to disable HTTP response chunked encoding to reduce bandwidth. How significant is the overhead with chunking in your case? I'd expect it to be pretty small unless only a few bytes are sent at a time (and even then there is the overhead for the packet). Is there any mileage in using compression to reduce bandwidth instead? Issues with flushing compressed output streams [1] were fixed last year. The response will have header Connection: close with Content-Length header omitted. Is there a way to do it besides having client send HTTP 1.0 request (that is not possible in the majority of cases)? Having looked at the relevant source code the only two ways I can see are: - sending an HTTP 1.0 request - declaring a content length It used to be possible to control this by disabling keep-alive but that was changed back in April last year [2],[3] as a result a discussion on the dev list [4]. If your Tomcat version is old enough, you may still be able to use the disable keep-alive trick. My own view was then, and is now, that the extra bytes with chunking are a price worth paying for the client to be able to determine if the request is complete. That said, an option on the connector to revert to non-chunked responses when keep-alive is disabled for use cases where reducing bandwidth is more important than knowing if the response is complete seems reasonable to me. Mark [1] http://issues.apache.org/bugzilla/show_bug.cgi?id=48738 [2] http://svn.apache.org/viewvc?rev=931709view=rev [3] http://svn.apache.org/viewvc?rev=932913view=rev [4] http://markmail.org/message/pim62zhlw4cii7ve - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Setting max file upload size
Set Connector maxPostSize=very large number / in server.xml. 3 GB might be very large. I don't know if the value is a long or an int in the internals of Tomcat. This is from my live server. Connector port=8080 maxHttpHeaderSize=8192 maxThreads=300 minSpareThreads=25 maxSpareThreads=75 enableLookups=false redirectPort=8443 acceptCount=1024 connectionTimeout=2 disableUploadTimeout=true compression=on maxPostSize=104857600 / Ronald. Op woensdag, 29 december 2010 17:03 schreef Anjib Mulepati anji...@hotmail.com: I am trying to upload the larger file through my app developed using Struts 1.3.8. I did change the config in struts to upload file upto 3GB but that doesn't work. So now I am trying to find the configuration in Tomcat where I can set the max size for file upload. Is there any? Anjib - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
+1 for 6.0.30 (was: Re: Http11NioProtocol error 505 (or 400))
Hi, May I vote +1 for a 6.0.30 in relation to this bug. Ronald. Op dinsdag, 28 december 2010 10:19 schreef Olaf Tomczak olaf.tomc...@gmail.com: Ok, I used Mark Thomas' patch that Roland suggested - created a clean instance of Tomcat with and without the patch and tested it with my request. Indeed the patched instance handles the requests correctly. Just FYI this is my request: GET /0123456789012345678901234567890123456.htm HTTP/1.1 Accept: application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 Accept-Charset: ISO-8859-2,utf-8;q=0.7,*;q=0.3 Accept-Encoding: gzip,deflate,sdch Accept-Language: pl-PL,pl;q=0.8,en-US;q=0.6,en;q=0.4 Authorization: Basic 012345678901234567890123 Cache-Control: max-age=0 Cookie: test_cookie=0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 Referer: http://example.org/012345678912345678901234567890123456789012345678901 User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Sabayon Chrome/8.0.552.210 Safari/534.10 Host: olaftomczak.com:6060 Connection: keep-alive I also attached it as a JMeter test configuration. Here're the results: - patched instance: sampleResult responseMessage=Not Found responseCode=404 dataType=text time=245 timeStamp=1293527375642 threadName=Thread Group1-1 label=HTTP Request success=false/ - instance with no patch: sampleResult responseMessage=HTTP Version Not Supported responseCode=505 dataType= time=444 timeStamp=1293527344000 threadName=Thread Group1-1 label=HTTP Request success=false/ Thanks for your help guys! Cheers, Olaf 2010/12/28 Christopher Schultz ch...@christopherschultz.net -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Olaf, On 12/27/2010 5:24 PM, Olaf Tomczak wrote: 2010/12/27 Christopher Schultz ch...@christopherschultz.net Non-blocking just means that your request processor threads don't block waiting for data to arrive. The requirements of reading the request -- including all the headers -- do not change with the connector. Tomcat needs to read the entire set of headers in order to route the request to the right host and webapp. Also, Tomcat must have all headers in order to perform some operations -- such as responding to getHeaders calls which sometimes require that multiple separate HTTP header lines be merged into a single method return value. I understand that the whole request must be read to start request processing - I was just suggesting that from what I understand the connector does not wait for the buffer to be completely filled before starting to parse request line and headers. Isn't that right? I don't believe the difference you describe would be detectable at any level. The choice of connector does not change the logic for request processing: only that of gathering the bytes from the request. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk0ZGxMACgkQ9CaO5/Lv0PCygACgv66l6yc6Wubf/szFbfgOm90B nEgAoI/MAXqpieNtwKr3p389EV6lyQy5 =MsJZ -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Http11NioProtocol error 505 (or 400)
I see similar errors. If it is the same there should be a fix in Tomcat 7.0.4 and 6.0.30 (not released yet) Something like this? https://issues.apache.org/bugzilla/show_bug.cgi?id=50072 Ronald. Op maandag, 27 december 2010 18:59 schreef Olaf Tomczak olaf.tomc...@gmail.com: Hi, I'm using Http11NioProtocol connector on my Tomcat 6.0.29 instance and I noticed that sometimes I experience strange responses: - 400 - Bad Request, - 505 - HTTP Version Not Supported My first conclusion was that it's somewhat related to the size of the request (e.g. clearing session cookies always fixed the problem). I then recompiled Tomcat from sources adding some additional logs to Http11NioProcessor and InternalNioInputBuffer classes. I also isolated a test request that always fails on my test server instace and used it as a JMeter test configuration. I'm using the following connector configuration: Executor name=tomcatThreadPool namePrefix=catalina-exec- maxThreads=256 minSpareThreads=32/ Connector executor=tomcatThreadPool acceptorThreadCount=4 useComet=false address=0.0.0.0 port=4080 protocol=org.apache.coyote.http11.Http11NioProtocol connectionTimeout=3 redirectPort=4443 enableLookups=false / Looking at my logs I found out that the request fails with the following scenario: InternalNioInputBuffer.parseRequestLine - successfully parses the first request line InternalNioInputBuffer.parseHeader - parses some headers but then fails to read more data and returns with HeaderParseStatus.NEED_MORE_DATA status InternalNioInputBuffer.parseRequestLine - is called again and then tries to parse the remaining headers and fails with 505 since it takes a part of 'User-Agent' header value as a protocol name. Can someone familiar with the Http11NioProtocol connector help me with this problem? I also noticed that when a use a local instance of Tomcat (on the same host as my jmeter) with the same configuration the requests work (I suppose it's because the connection is faster and more data is available in the buffer without delay). Thanks a lot, Olaf Tomczak
Re: Tomcat dying on its own
Op dinsdag, 7 december 2010 09:52 schreef Rainer Jung rainer.j...@kippdata.de: On 06.12.2010 23:36, Guillaume Carbonneau wrote: On Mon, Dec 6, 2010 at 2:25 PM, Konstantin Kolinko knst.koli...@gmail.com wrote: 2010/12/6 Guillaume Carbonneauguillaume.carbonn...@gmail.com: Hi everyone, My tomcat server seems to die on its own without leaving any backtrace... The last info I get in the logs are : Dec 3, 2010 6:11:35 PM org.apache.coyote.http11.Http11Protocol pause INFO: Pausing Coyote HTTP/1.1 on http-8077 Dec 3, 2010 6:11:36 PM org.apache.catalina.core.StandardService stop INFO: Stopping service Catalina Dec 3, 2010 6:11:36 PM org.apache.coyote.http11.Http11Protocol destroy INFO: Stopping Coyote HTTP/1.1 on http-8077 Running The Apache Tomcat 6.0 (6.0.29) Linux Oracle Red hat : 2.6.18-194.el5 java version 1.6.0_21 This has happened more than once and will occur even if there is no traffic. restarting brings it back up but it has proven to be unreliable... At least, it is not a sudden death. Tomcat can be shut down by sending a certain string to port 8005 on localhost (see the first lines of server.xml), - normal shutdown or by sending a system signal that causes JVM to exit, or by calling System.exit(). - shutdown hook perform the shutdown You can install a Listener and print a stacktrace when the stop event happens. The stack traces for the normal shutdown sequence and for the shutdown hook will be different. The Linux out-of-memory killer was already mentioned. BTW, you are not alone: such a thread happens here every 4-6 months. Best regards, Konstantin Kolinko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org I seem to have solved the problem at least temporarily through this solution : I installed the latest JDK on the deployed machine and ran tomcat through catalina.sh debug, then run No crash so far so good. When starting Tomcat interactively you should be aware that some shells kill all child processes when you log out (or get logged out automatically). There's nohup though. I'm not sure what kind of signal is used then, so I can't tell whether the orderly shutdown messages in your logs contradict that theory or not. Regards, Rainer Nohup stands for 'no hup', so the signal is HUP and that means HANG-UP as in disconnect your modem. Only the modem is replaced with ssh nowadays. Ronald.
Re: migrating to Tomcat 7, when
Op vrijdag, 3 december 2010 10:09 schreef Justin Case send_lotsa_spam_h...@yahoo.com: Hi all, I see discussions about migration to Tomcat 7. Do you think it is the right moment to count your production apps on it? My thought is no way Jose but maybe I'm missing something... Thank you, JC The answer probably depends on how depended you are on the corner cases of how Servlets work. Start running your development and testing servers on it, so you can see what it does for you. And post your findings here. Ronald.
Comet while migrating to Tomcat 7
Hello, I'm trying Tomcat 7. The Comet classes have been moved from the org.apache.catalina package to the org.apache.catalina.comet package. That is fine by me. But for deployment reasons it would be easy if I can deploy the same war on Tomcat 6 and Tomcat 7. In that way I don't need a turn-key upgrade of my Tomcat servers. Is there a way to make it dynamic which package is used? Something like a Proxy or some other trick I don't know yet. How do others do this? Ronald.
Re: Comet while migrating to Tomcat 7
Op donderdag, 2 december 2010 20:37 schreef Pid p...@pidster.com: On 12/2/10 3:28 PM, Ronald Klop wrote: Hello, I'm trying Tomcat 7. The Comet classes have been moved from the org.apache.catalina package to the org.apache.catalina.comet package. That is fine by me. But for deployment reasons it would be easy if I can deploy the same war on Tomcat 6 and Tomcat 7. In that way I don't need a turn-key upgrade of my Tomcat servers. Is there a way to make it dynamic which package is used? Something like a Proxy or some other trick I don't know yet. This wouldn't require code changes? How do others do this? Recompile, or produce two versions of the app. :s p Hi, My problem is not changing the code, but I now have to maintain two versions of the code. One with import org.apache.catalina.CometProcessor and one with org.apache.catalina.comet.CometProcessor. And Eclipse has to resolve both of them. Look. I can now choose to develop against Tomcat 7, but when I have a problem with it in production in a couple of weeks I would like to have the ability to switch back to Tomcat 6 easily. Somehow we wil manage this, but I was wondering how other people are doing this migration. Maybe I'm missing something clever. In the end I'm expected to switch to ServletRequest.doAsync(), or am I not? Ronald.
Re: [OT] How to obtain the id of the current process
That is why my Tomcats spawn a pool of sh scripts to have them run a unix
command (ImageMagick, etc.)
Forking of a threaded process is very expensive on a loaded server. Unix has to
suspend all threads, than fork, do a lot of housekeeping and than resume all
threads. After making a pool of running sh instances which listen on stdin for
commands my system %cpu went down so it has more time for user %cpu. Throughput
doubled in my scenario's.
Ronald.
Op woensdag, 17 november 2010 22:30 schreef Leon Rosenberg
rosenberg.l...@gmail.com:
Hi,
I have a ugly issue I'm sure many people on this list already solved.
For multiple purposes I need pid's of processes, to stop/start them or
ensure they are running. So far nothing spectacular.
To obtain the pid I have following util:
String[] cmd = { /bin/bash, -c, echo $PPID };
p = Runtime.getRuntime().exec(cmd);
and afterwards read the ppid from the output stream of my process. So
far - so good.
The problem now occurs if a process has a lot of memory configured.
Like 25Gb on a 32Gb machine. In such a configuration the above command
fails with an OS'es out of memory, because fork
fails to create another process with THAT amount of memory:
1598388 2010-11-17 02:54:47,061 ERROR net.anotheria.util.PidTools -
Could not determine PID: java.io.IOException: Cannot run program
/bin/bash: java.io.IOException: error=12, Cannot allocate memory
Is there another method to obtain the process id from within the process?
regards
Leon
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Re: Malicious host is crashing my server
Use ngrep, tcpdump or wireshark to look at what he/she is requesting. If it is SQL injection you should rewrite your query's to use PreparedStatements. Ronald. Op zondag, 7 november 2010 18:31 schreef Assaf ass...@yahoo.com: Hi, It might be. But I am not sure how to find out more. Any suggestions? Assaf - Original Message From: Marc Boorshtein mboorsht...@gmail.com To: Tomcat Users List users@tomcat.apache.org Sent: Sun, November 7, 2010 6:29:09 PM Subject: Re: Malicious host is crashing my server JDBC? Are you sure its not an attempted SQL Injection attack? On Sun, Nov 7, 2010 at 12:23 PM, Assaf ass...@yahoo.com wrote: Hello, I have a recurring visitor (from a fixed IP address: bzq-79-177-23-102.red.bezeqint.net) who is constantly visiting my site and EACH time causes the server to crash. My server actually gets a JDBC begin failed error for the next http calls. Analyzing the logs, I cannot find out what is wrong. I can see it is a script as he is visiting the same pages in the same order (never downloading images/css/js). The only thing that I have noticed that is different with this user are the http headers he uses: Expand HTTP read ahead 1.0 I could not google anything about those. I am running tomcat 6.0.20 on linux with mysql. Anyone has an idea what this can be? How to find out? Also, what can I do to better protect? Thanks, Assaf - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: JSP Precompilation and Servlet 3.0
+1 Precompiled jsp's with annotations in a jar. Op vrijdag, 5 november 2010 21:07 schreef Pid p...@pidster.com: On 05/11/2010 15:06, Christopher Schultz wrote: Chuck, On 11/5/2010 10:57 AM, Caldarale, Charles R wrote: From: Christopher Schultz [mailto:ch...@christopherschultz.net] Subject: JSP Precompilation and Servlet 3.0 Hopefully, this will make JSP precompilation less onerous for users. I don't think the current mechanism is particularly onerous, since Tomcat supplies an ant script to do all the dirty work, including the update of web.xml. My understanding is that the ant script needs some help to get started: you can't simply run the JSP precompiler against an existing webapp without seeding web.xml, at least a bit. I suggested generating annotated java a little while back and didn't get an overly enthusiastic reception, but I like the general idea of the JSPs being in their own jar. I think it would be good if Tomcat 7.0 featured and used Servlet 3.0 functions, the source is available and it'll help users get to know the spec. p
servlet-mapping order?
Hi, I have a couple of servlets and the mapping in web.xml is like this: servlet-mapping servlet-nameEntityServlet/servlet-name url-pattern/servlets/*/url-pattern /servlet-mapping servlet-mapping servlet-nameRRDStatsServlet/servlet-name url-pattern/servlets/rrdstats/url-pattern /servlet-mapping On startup EntityServlet sometimes complains that is does not know anything about path /servlets/rrdstats. This is an error I throw myself. This is between: Nov 08 15:35:32 rwlinux54 INFO: Starting Coyote HTTP/1.1 on http-8080 errors here Nov 08 15:35:32 rwlinux54 Nov 8, 2010 3:35:32 PM org.apache.coyote.http11.Http11Protocol start Nov 08 15:35:32 rwlinux54 INFO: Starting Coyote HTTP/1.1 on http-8443 Nov 08 15:35:32 rwlinux54 Nov 8, 2010 3:35:32 PM org.apache.coyote.http11.Http11Protocol start Nov 08 15:35:32 rwlinux54 INFO: Starting Coyote HTTP/1.1 on http-8444 Nov 08 15:35:32 rwlinux54 Nov 8, 2010 3:35:32 PM org.apache.catalina.startup.Catalina start Nov 08 15:35:32 rwlinux54 INFO: Server startup in 75504 ms After 'Server startup' everything works as expected. So the order of servlet-mapping in web.xml doesn't look important to me. What is happening? Are servlets available to early? Before all the mappings are ready. And what is the best thing to do for me to fix this? Using Tomcat 6.0.29 on Debian Lenny with java 6.0.20 from Debian pkgs. Ronald.
Re: how can i turn off This is very likely to create a memory leak.
grep -v memory leak Op donderdag, 28 oktober 2010 15:44 schreef Leon Rosenberg rosenberg.l...@gmail.com: Hello, I investigated an issue (another thread) with new error messages after tomcat update: SEVERE: The web application [/moskitodemo] appears to have started a thread named [MoskitoMemoryPoolReader] but has failed to stop it. This is very likely to create a memory leak. After some research and discussions with colleagues we came to the conclusion that this message is ... well not helping us. Is there a possibility to turn it off? Its annoying to have such messages in the logs after a server shutdown. For explanation: I'm not planing to use webapp reload in my environment, hence, this message is actually just spam. regards Leon - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: RV: Session Context variables architecture problem
Just query the database. Enable query caching in mysql. And only optimize in java if you see a bottleneck. My mysql does 15000 queries/sec. What is your expectation of number of queries? Ronald. Op donderdag, 28 oktober 2010 19:31 schreef falva...@geocom.com.uy: Dear All, I'm currently using Tomcat 6.0.28 and having some doubt on how to solve and implement this problem: My webapp has a MySQL Database with a table named parameters, in which we have just two columns (property and value). This table is acceded many times but doesn't change often. For performance purposes I want to save this parameters in the user's tomcat session, so they are read from memory and not database. So far so good. Now the problem: how can I tell this sessions that an attribute has changed? I had suggestions of using context variables instead of session variables, but that didn't solve the problem. Any help in this matter is more than welcome. I have no problem in changing the approach, and may be not use sessions at all. Thanks in advance. Best regards, Federico Alvarez. Info: Tomcat 6.0.28 Java 1.6 MySQL 5.5 NOT USING HIBERNATE, so 2nd Level cache is not an option
Re: running tomcat6 under a different user than root (debian)
If you have a webapp where users log in you can use there login/password to login on the database. A little bit inconvenient for the DBA but you don't have passwords on your servers. Ronald. Op vrijdag, 29 oktober 2010 15:42 schreef Rainer Frey rainer.f...@inxmail.de: On Friday 29 October 2010 15:34:29 Mark Thomas wrote: If Tomcat has access to a database and the attacker has access to a shell prompt (or similar) with the same privileges as Tomcat then the attacker has access to the database and there is absolutely nothing you can do to prevent that. In theory, there is a way Tomcat could implement. You could interactively ask for all needed passwords when starting Tomcat and keep them only in memory. httpd does that by default for encrypted SSL primary keys. But in practice the userbase that would accept the inconvenience and the impossibility to automatically start tomcat would be too small to spend time for that. And the practical security gain is small. Mark Rainer - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to start a daemon without getting the warning?
You should call timer.cancel() on context stop. You can do this from a
ServletContextListener.
Ronald.
Op woensdag, 27 oktober 2010 22:10 schreef Leon Rosenberg
rosenberg.l...@gmail.com:
Hello,
I'm getting following warning with 6.0.29,
after shutdown:
SEVERE: The web application [/moskitodemo] appears to have started a
thread named [MoskitoMemoryPoolReader] but has failed to stop it. This
is very likely to create a memory leak.
here's the snapshot of the code that starts the thread:
public class BuiltInMemoryPoolProducer implements IStatsProducer{
/**
* Timer instance for this producer type.
*/
private static final Timer timer = new Timer(MoskitoMemoryPoolReader,
true);
...
public BuiltInMemoryPoolProducer(MemoryPoolMXBean aPool){
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
readMemory();
}
}, 0, 1000L*60);
...}
to my knowledge this thread is a daemon. This knowledge is also shared
by jstack:
MoskitoMemoryPoolReader daemon prio=5 tid=10883f800 nid=0x11a9b2000
in Object.wait() [11a9b1000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on 10a1120d0 (a java.util.TaskQueue)
at java.util.TimerThread.mainLoop(Timer.java:509)
- locked 10a1120d0 (a java.util.TaskQueue)
at java.util.TimerThread.run(Timer.java:462)
So, how can I avoid this warning and where's the bug.
regards
Leon
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Re: lock session in distributed environment
Op vrijdag, 15 oktober 2010 10:02 schreef Roman Makurin dro...@gmail.com: Hi All! I have an app which rely on session locking and its key point here. Everything work on single tomcat instance, but its completly broken in distributed env. So i want to know is there any way to get my app working without complete redesing? I need lock all incoming requests untill business logic will be done, this lock must be available on all nodes in cluster. any advise? Thanks -- If you think of MS-DOS as mono, and Windows as stereo, then Linux is Dolby Digital and all the music is free... This is something a database can do very well. There are also things like a distributed HashMap which you might use to do locking in your setup. But that probably is what you see as complete redesign (and it is :-) ). Ronald.
Re: lock session in distributed environment
Op vrijdag, 15 oktober 2010 13:00 schreef Roman Makurin dro...@gmail.com: On Fri, Oct 15, 2010 at 12:34:10PM +0200, Ronald Klop wrote: Op vrijdag, 15 oktober 2010 10:02 schreef Roman Makurin dro...@gmail.com: Hi All! I have an app which rely on session locking and its key point here. Everything work on single tomcat instance, but its completly broken in distributed env. So i want to know is there any way to get my app working without complete redesing? I need lock all incoming requests untill business logic will be done, this lock must be available on all nodes in cluster. any advise? Thanks -- If you think of MS-DOS as mono, and Windows as stereo, then Linux is Dolby Digital and all the music is free... This is something a database can do very well. There are also things like a distributed HashMap which you might use to do locking in your setup. But that probably is what you see as complete redesign (and it is :-) ). Ronald. Looks like HashMap is like distributed HttpSession object, but does it support locking? Eg. I lock session at first node and all other nodes r aware of this lock. If you are locking with synchronized or something like that than it doesn't work between different JVM's. Ronald.
Re: Deploy Dynamic Contexts
Op donderdag, 7 oktober 2010 11:49 schreef Rob Gregory rob.greg...@ibsolutions.com: Hi Tomcat Community, Does anyone know if it is possible to dynamically create contexts on demand. I have a requirement to be able to ship a single application.war file and create multiple contexts from this without manually using the manager application etc. Tomcat is the latest version 6.0.29. Dare I ask if it is possible to extend the manager servlet to achieve this deployment task? Thanks in advance Rob You can de a lot with JMX. But I have never used it myself for deploying context, so can't give you any advise about that. http://tomcat.apache.org/tomcat-6.0-doc/monitoring.html Ronald.
RE: Tabbed browsers sharing session - work around.
Rob, IE 6 is even more confusing. If you open a new window with ctrl-N you have the same session sharing as with tabs. Only if you click the IE6-icon to start a new instance of the process it will not share them. Opening a new tab in IE7 is like using ctrl-n to open a new window in IE6. Ronald. Op dinsdag, 5 oktober 2010 10:26 schreef Rob Gregory rob.greg...@ibsolutions.com: Hi Chris, Is there any way to dynamically create these contexts or do they require a live.xml, test.xml, etc within conf/Catalina/localhost. The multiple contexts would be my preferred approach although I would like to achieve this with a single code base if this is possible. The multiple environments are driven purely by the backend database connection, i.e. the code is the same with the only difference being where the data is being saved to. Hence the requirement to stop the browser sharing the same session when in different database connections. I'm surprised that other people are not having the same issues since the browser manufacturers decided to make this crazy change to session management between tabs/instances and suddenly share the same session. In I.E.6 two browser instances would be two separate sessions. I.E.7 they are the same session! Thanks for your input. Kind Regards, Rob. -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ronald, On 10/4/2010 6:11 AM, Ronald Klop wrote: You can run your test environment on another hostname. live.example.com test.example.com train.example.com Or under another context: http://www.example.com/live http://www.example.com/test http://www.example.com/train The real question is why there's any confusion: your hostnames and/or URLs ought to be unique enough already. Otherwise, this sort of foolishness can affect your real users and you'll leak data all over the place. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyqDDQACgkQ9CaO5/Lv0PDWRACgrlgU+jY+n8nMCZ2WTO63UHDh 10UAoJdyNWqu0nlRGcWbJ6Mcc7zbsGy+ =JP4k -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: tomcat 6.0 bottleneck
Op dinsdag, 5 oktober 2010 15:27 schreef mamalacation mamalacat...@hotmail.com: n828cl, n828cl wrote: Pretty much guaranteed that it's not Tomcat but your webapp that is locking itself out of access to some resource (such as the database). Take several thread dumps during the slowdown period and see what's going on. http://wiki.apache.org/tomcat/HowTo#How_do_I_obtain_a_thread_dump_of_my_running_webapp_.3F http://wiki.apache.org/tomcat/FAQ/Performance_and_Monitoring BTW, tell us the *exact* Tomcat version, and the JVM level you're running on. as far as the version as concerned: Tomcat Version: 6.0.26 JVM Version : 1.6.0_20-b02 JVM Vendor : Sun Microsystems Inc. I will look at the links you proposed to see what's going on with my webapps, but I am pretty sure that there must be some limit somewhere that I can't see. Where can I set the database options regarding timouts, pool size, max_database_connections, etc? thanx again, mamalos Try the tools to make a threadsdump. That wil show you what the webapp is doing and wil probably give you a hint about the 'limits'. Stay open minded. You can also have some bug in the software so some resources are never free'd. In that case you can keep raising the limits, but that doesn't solve the problem. Ronald.
Re: Serialization
What does ddm2 look like? Does it have a reference to the jsp object?
Ronald.
Op maandag, 4 oktober 2010 15:10 schreef Wolfgang Orthuber
orthu...@kfo-zmk.uni-kiel.de:
Hello,
my tomcat version is 5.5.17, my question concerns serialization of objects,
below is a code section for writing and reading an object. If I call write
immediately before read:
d5.write();
d5.read();
then all works fine, but if I use only read (on an formerly written file) with
the same code included in another program module, I got the exceptions like
this:
java.lang.ClassCastException: org.apache.jsp.w.w4a_jsp$1ddm2 cannot be cast to
org.apache.jsp.w.w4b_jsp$1ddm2
in which w4a.jsp and w4b.jsp are two different modules which include the same
code for read and write. The name of the program module is stored in the
serialized object, but the name of the program module does not matter, because
both modules include the same code.
Do you know a simple solution which avoids the exception?
Wolfgang
The code section with read and write:
class dm5t implements Serializable {
public ArrayListddm2v5;
public dm5t () { v5 = new ArrayListddm2 (); }
public String topicpath(){return
getServletContext().getRealPath()+/tp/;}
public synchronized boolean write () {
String fn=fntopics;
boolean ok=true;
try {
String spath = topicpath();
FileOutputStreamfs = new FileOutputStream (spath+fn);
ObjectOutputStreamos = new ObjectOutputStream(fs);
os.writeObject (v5);
os.close ();}
catch (IOException e) {ok=false;} return ok;}
public synchronized booleanread () {
String fn=fntopics;
boolean ok=true;
ArrayListddm2v5tmp=null;
try {
String spath = topicpath();
FileInputStreamfs = new FileInputStream (spath+fn);
ObjectInputStreamos = new ObjectInputStream(fs);
v5tmp = (ArrayListddm2) os.readObject ();
os.close ();
} catch (IOException e) {ok=false;}
catch (ClassNotFoundException e) {ok=false;}
if (ok)if (v5tmp != null) v5=v5tmp;
return ok;}
}
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RE: Tabbed browsers sharing session - work around.
Hi, Ok. I didn't understand that somebody chooses an environment dynamicly. The JSESSION cookie is tight to a hostname. So if you make unique hostnames for every login you have unique sessions. For our helpdesk I made a wildcard DNS entry *.example.com IN CNAME tomcat.example.com and a button which redirects you to timestamp.example.com, so a login goes to something like 1286190607.example.com and the next user will go to 1286190608.example.com and has its own session. It is about the same as you do with your virtual context, but you don't have to do tricks to org.apache.catalina.connector.Request and it keeps all the safety of WEB-INF, etc. Ronald. Op maandag, 4 oktober 2010 12:58 schreef Rob Gregory rob.greg...@ibsolutions.com: Hi Ronald, Thanks for the prompt response but I am not sure I fully understand your suggestion. Would that approach require knowing the available environments before hand and registering these somehow so that the names get resolved to the machine. If so this is not really an option as our application dynamically creates these environments. The application is not internet facing if that makes a difference. Regards Rob -Original Message- From: Ronald Klop [mailto:ronald-mailingl...@base.nl] Sent: 04 October 2010 11:12 To: Tomcat Users List Subject: Re: Tabbed browsers sharing session - work around. You can run your test environment on another hostname. live.example.com test.example.com train.example.com Maybe use a login.example.com to redirect you to the right url after login. Ronald. Op maandag, 4 oktober 2010 11:03 schreef Rob Gregory rob.greg...@ibsolutions.com: Hi Tomcat community, I'm after advice on some session frigging I have recently bespoke'd into Tomcat (version 6.0.29) to resolve an issue with the recent changes in tabbed browsers where they now share the same session across multiple browser tabs/instances. I have googled the issue and the following post seems to be asking the same question, and suggestions come very close to what I have implemented:- http://old.nabble.com/Want-to-customise-the-tomcat's-session-logic-td261 61430.html The problem:- I have a web application that supports multiple environments (database) such as live, test, train, etc. from a single code base/web application. Example scenario is as follows:- * User Bob logs into the application and selects the TEST environment and starts entering some data. * Bob then opens up another browser or tab and logs into the LIVE environment. * Behind the scenes the browser has shared the session and has in fact switched the first browser from TEST into the LIVE environment without Bob being aware. * Bob hits save within what he thinks is the TEST environment and the LIVE environment is actually updated. The solution:- I have introduced what is basically a sub context into our url's and changed the path of the jsession cookie to limit each generated session to the 'virtual' context it was issued within. E.g. cookie.setPath(contextPath + / + unique-id); where unique-id is just a unique generated number. The Implementation:- I have bespoked the org.apache.catalina.connector.Request class to include a unique id as the context to the cookie path and prior to creating the session I redirect the user to this context e.g. http://localhost/webapp/unique-id/page.jsp. The unique-id is then removed by the Request class before returning the path from getServletPath() and getRequestURI() so the actual web application is unaware of this context switching. The Question:- While this seems to be working well and the multiple browser tabs/instances do indeed have unique sessions I would like to ask if anyone can see any potential issues with what I have done or how I have implemented it. I did have one serious issue where I could type in http://localhost/webapp/unique-id/WEB-INF/lib/application.jar and it bypassed Tomcat built in security and actually downloaded the .jar but this was quickly resolved. Any input or criticisms would be greatly appreciated if you can see a flaw in this design or know of a better approach to bypass this shared session behaviour of recent browsers. Many thanks for your time. Rob Gregory - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Tabbed browsers sharing session - work around.
You can run your test environment on another hostname. live.example.com test.example.com train.example.com Maybe use a login.example.com to redirect you to the right url after login. Ronald. Op maandag, 4 oktober 2010 11:03 schreef Rob Gregory rob.greg...@ibsolutions.com: Hi Tomcat community, I'm after advice on some session frigging I have recently bespoke'd into Tomcat (version 6.0.29) to resolve an issue with the recent changes in tabbed browsers where they now share the same session across multiple browser tabs/instances. I have googled the issue and the following post seems to be asking the same question, and suggestions come very close to what I have implemented:- http://old.nabble.com/Want-to-customise-the-tomcat's-session-logic-td261 61430.html The problem:- I have a web application that supports multiple environments (database) such as live, test, train, etc. from a single code base/web application. Example scenario is as follows:- * User Bob logs into the application and selects the TEST environment and starts entering some data. * Bob then opens up another browser or tab and logs into the LIVE environment. * Behind the scenes the browser has shared the session and has in fact switched the first browser from TEST into the LIVE environment without Bob being aware. * Bob hits save within what he thinks is the TEST environment and the LIVE environment is actually updated. The solution:- I have introduced what is basically a sub context into our url's and changed the path of the jsession cookie to limit each generated session to the 'virtual' context it was issued within. E.g. cookie.setPath(contextPath + / + unique-id); where unique-id is just a unique generated number. The Implementation:- I have bespoked the org.apache.catalina.connector.Request class to include a unique id as the context to the cookie path and prior to creating the session I redirect the user to this context e.g. http://localhost/webapp/unique-id/page.jsp. The unique-id is then removed by the Request class before returning the path from getServletPath() and getRequestURI() so the actual web application is unaware of this context switching. The Question:- While this seems to be working well and the multiple browser tabs/instances do indeed have unique sessions I would like to ask if anyone can see any potential issues with what I have done or how I have implemented it. I did have one serious issue where I could type in http://localhost/webapp/unique-id/WEB-INF/lib/application.jar and it bypassed Tomcat built in security and actually downloaded the .jar but this was quickly resolved. Any input or criticisms would be greatly appreciated if you can see a flaw in this design or know of a better approach to bypass this shared session behaviour of recent browsers. Many thanks for your time. Rob Gregory
Re: jsp-examples sessions
Do you use /jsp-examples for something? In production (or on all your systems) remove the jsp-examples context/webapp if you don't need it. In fact... remove all webapps which you don't use. Ronald. Op maandag, 4 oktober 2010 11:42 schreef rujin raj rujin...@gmail.com: Dear Support, I installed some applications in tomcat 5.5.When i m monitoring through the Lambda probe,I noticed that the /jsp-examples sessions are increased invariably. Please guide me in which circumstances these /jsp-examples sessions will increase and whether it will affect my server performance. Regards, rujinraj - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Tabbed browsers sharing session - work around.
if (session.environment != newEnvironment) {
logoutUser(You cannot change a running environment.);
}
Something like that.
Ronald.
Op maandag, 4 oktober 2010 13:27 schreef Rob Gregory
rob.greg...@ibsolutions.com:
Hi Ronald,
Using the hostname doesn't really guarantee a unique session for example
if I click new tab and paste the URL into the new window I suspect the
browser will see the same session from the first tab. In our application
the user can then change the environment with disastrous consequences
when updating the database. Did you implement anything to stop the
session sharing at this level. What I did was to use the window.name
attribute to allow tracking of browser instances and compare this when
doing the session timeout checking and this way I am able to redirect
any further browser opens into new sessions.
With the exception of WEB-INF (which was due to tomcat no longer seeing
that as a WEB-INF call because I have my unique-id in the path) do you
see any security faults in what I am doing?
Again thanks for the suggestion and I will look into maybe using the
host over a virtual context as part of the final solution.
Kind Regards,
Rob
-Original Message-
From: Ronald Klop [mailto:ronald-mailingl...@base.nl]
Sent: 04 October 2010 12:15
To: Tomcat Users List
Subject: RE: Tabbed browsers sharing session - work around.
Hi,
Ok. I didn't understand that somebody chooses an environment dynamicly.
The JSESSION cookie is tight to a hostname. So if you make unique
hostnames for every login you have unique sessions.
For our helpdesk I made a wildcard DNS entry *.example.com IN CNAME
tomcat.example.com and a button which redirects you to
timestamp.example.com, so a login goes to something like
1286190607.example.com and the next user will go to
1286190608.example.com and has its own session.
It is about the same as you do with your virtual context, but you don't
have to do tricks to org.apache.catalina.connector.Request and it keeps
all the safety of WEB-INF, etc.
Ronald.
Op maandag, 4 oktober 2010 12:58 schreef Rob Gregory
rob.greg...@ibsolutions.com:
Hi Ronald,
Thanks for the prompt response but I am not sure I fully understand
your
suggestion. Would that approach require knowing the available
environments before hand and registering these somehow so that the
names
get resolved to the machine. If so this is not really an option as our
application dynamically creates these environments. The application is
not internet facing if that makes a difference.
Regards
Rob
-Original Message-
From: Ronald Klop [mailto:ronald-mailingl...@base.nl]
Sent: 04 October 2010 11:12
To: Tomcat Users List
Subject: Re: Tabbed browsers sharing session - work around.
You can run your test environment on another hostname.
live.example.com
test.example.com
train.example.com
Maybe use a login.example.com to redirect you to the right url after
login.
Ronald.
Op maandag, 4 oktober 2010 11:03 schreef Rob Gregory
rob.greg...@ibsolutions.com:
Hi Tomcat community,
I'm after advice on some session frigging I have recently bespoke'd
into
Tomcat (version 6.0.29) to resolve an issue with the recent changes
in
tabbed browsers where they now share the same session across
multiple
browser tabs/instances.
I have googled the issue and the following post seems to be asking
the
same question, and suggestions come very close to what I have
implemented:-
http://old.nabble.com/Want-to-customise-the-tomcat's-session-logic-td261
61430.html
The problem:-
I have a web application that supports multiple environments
(database)
such as live, test, train, etc. from a single code base/web
application.
Example scenario is as follows:-
* User Bob logs into the application and selects the
TEST
environment and starts entering some data.
* Bob then opens up another browser or tab and logs into
the
LIVE environment.
* Behind the scenes the browser has shared the session
and
has in fact switched the first browser from TEST into the LIVE
environment without Bob being aware.
* Bob hits save within what he thinks is the TEST
environment and the LIVE environment is actually updated.
The solution:-
I have introduced what is basically a sub context into our url's and
changed the path of the jsession cookie to limit each generated
session
to the 'virtual' context it was issued within. E.g.
cookie.setPath(contextPath + / + unique-id); where unique-id
is
just a unique generated number.
The Implementation:-
I have bespoked the org.apache.catalina.connector.Request class to
include a unique id as the context to the cookie path and prior to
creating the session I redirect the user to this context e.g.
http://localhost/webapp/unique-id/page.jsp
Re: Howto: call a Servlet from another Servlet (Example)?!
You can use the RequestDispatcher. RequestDispatcher dispatcher = request.getRequestDispatcher(/userlist); dispatcher.forward(request, response); Google gives you a lot of examples. Ronald. Op maandag, 20 september 2010 16:47 schreef Michael Stockhausen prof.dr.moe...@googlemail.com: Hello, I have create two Servlets (LoginServlet UserListServlet). I'm using a JSP for the User credentials. When you press the login-button, the LoginServlet is called. I would like to call the UserListServlet, when the username and password are correct. How can I call UserListServle from the doGet(...) function of the LoginServlet. I would like to call a Servlet from another servlet. Where can I find some examples? Thanks, Michael
Re: How to spwan child processes.
class OtherAppNotifier implements Runnable {
public void run() {
... doe something...
}
}
In your servlet:
doGet() {
processUserRequest();
new Thread(new OtherAppNotifier()).start();
}
You can also use java.util.TimerTask or some other threadpool thing if this
spawns too many threads. But try the simple case first to make it working
before optimizing it.
Ronald.
Op maandag, 23 augustus 2010 16:11 schreef Wesley Acheson
wesley.ache...@gmail.com:
Hi,
As far as I'm aware your not supposed to extend Thread in JEE. I've
seen similar questions on Stack Overflow where it was suggested you
may use your containers Thread pool. This sounds like a terrible idea
for portability.
So take the following example.
1 A request for something specific is made to tomcat. That specific
request needs to two actions.
2 Process the users request.
3 Notify another application over http
Now If the notification fails in step 3 the users request still needs
to process and not to error so we would like to send the notification
as a background task. This is pretty easy with Threads but we
shouldn't extend Thread according to the specifications.
Questions:
1 Should this be delegated to the container?
2 If it should be delegated to the container how would I/we achieve
this in tomcat 6.
3 If it shouldn't be delegated to the container where should I ask how
to achieve a background task, because it isn't a tomcat question.
(Disclaimer: If you really want to give me the answer I won't mind :P
)
Regards,
Wesley
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Re: Tuning garbage collection
Op donderdag, 22 juli 2010 14:14 schreef paul womack pwom...@papermule.co.uk: laredotornado wrote: Hi, I'm using Tomcat 6.0.26, Java 1.6 and wondering what tools/strategies you use to tune your garbage collection parameters? My main strategy is to see if I have any cripping GC problems. If not, I leave the GC to its own (or Sun's) devices. GC tuning is likely to be outdated/obseleted almost as soon as you've done it. BugBear Just run jstat -gc on your live server for a while and check the overhead of GC. If it is to high add some memory. Ronald.
Re: Question on ClientAbortException
Op vrijdag, 2 juli 2010 21:49 schreef Leo Donahue - PLANDEVX leodona...@mail.maricopa.gov: http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/catalina/connector/ClientAbortException.html What does this mean exactly? A user makes a request for a resource and closes the browser before they get the response? ... Leo Donahue Or a file download and the user presses cancel in stead of save. Ronald.
Re: Does GC Really Matter (Is This Situation)?
Op dinsdag, 22 juni 2010 18:33 schreef Robinson, Eric eric.robin...@psmnv.com: This is a similar question to one already being discussed in the list with the subject Setting the Right Amount of Memory. We have 160 instances of tomcat on the same server, with most instances configured to use 64-96MB of RAM. We carefully watch the logs for OOMEs. If we see any, we increase the RAM allocation for that instance by 32MB, which is enough to make the OOMEs go away. Some people say this approach will lead to increased CPU utilization from frequent GC; however, our server runs 90% idle all day long so CPU is evidently not being driven up by much, if any. Given the circumstances, is there anything to be gained from increasing the heap size? Our software vendor wants us to increase each tomcat instance to 512MB, just as a matter of policy, but I don't see a good technical reason to do that. Am I missing something? -- Eric Robinson You can monitor the gc with jstat. jstat -gc pid 10s This wil show you the memory usage of a java instance with the time spent in GC. If it does 0.9 sec. of GC every sec. you are running inefficient. :-) Ronald.
RE: Does GC Really Matter (In This Situation)?
Op woensdag, 23 juni 2010 14:31 schreef Robinson, Eric eric.robin...@psmnv.com: You can monitor the gc with jstat. jstat -gc pid 10s This wil show you the memory usage of a java instance with the time spent in GC. If it does 0.9 sec. of GC every sec. yare running inefficient. :-) Thanks. I guess I could restate the question as, Does GC inefficiency really matter if overall CPU utilization remains low? -- Eric Robinson I don't know. Does it matter to you? If you have a lot of GC your CPU% wil not be very low. GC is CPU bound (if you are not swapping). If your server still has enough CPU power and the users are not complaining about the speed, than you don't have a problem. Ronald.
Re: Tomcat 4.1.30 failed to startup with 4GB memory
Op maandag, 31 mei 2010 17:40 schreef John Mok j...@attglobal.net: Hi, I am running Tomcat 4.1.30 on Ubuntu Linux 8.04.4 LTS. After moving the application from a 32-bit machine to a 64-bit machine with 4GB memory, suddenly tomcat failed to startup with the following error :- Stopping service Tomcat-Standalone May 29, 2010 4:27:36 PM org.apache.coyote.http11.Http11Protocol destroy INFO: Stoping http11 protocol on 8080 Catalina:type=ThreadPool,name=http8080 Error occurred during initialization of VM java.lang.OutOfMemoryError: unable to create new native thread On the 64-bit machine, I used the following software :- Ubuntu 8.04.4 LTS for amd64 Sun JDK 1.5.22 (amd64) export JAVA_HOME=/opt/jdk1.5.0_22 export PATH=$JAVA_HOME/jre/bin:$JAVA_HOME/bin:$PATH export CLASSPATH=. export CATALINA_OPTS=-Djava.awt.headless=true -d64 -Xss3072m -Xmx3072m -XX:PermSize=256m -XX:MaxPermSize=256m When I reduced the max memory to 1GB, tomcat started without any problem :- export CATALINA_OPTS=-Djava.awt.headless=true -d64 -Xss1024m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=256m Don't you really want -Xms in stead of -Xss? Setting the stack size to 3 GB is quite unusual. Every thread gets a stack of this size, so 10 threads already need 30 GB of memory. # java -X -Xmssizeset initial Java heap size -Xmxsizeset maximum Java heap size -Xsssizeset java thread stack size Ronald.
clustering errors in 6.0.26 with multiple contexts
Hello, Since I'm running 6.0.26 I have clustering errors on startup of some contexts. I only see this on servers with multiple clustered contexts. I don't know if that is related. In 6.0.24 everything worked ok for months. Today I caught the stack below on startup after which I get a 60 second timeout on sessionreplication. Can this be anything which has changed in 6.0.26? Ronald. java.lang.IllegalStateException: setAttribute: Session already invalidated at org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1321) at org.apache.catalina.ha.session.DeltaSession.setAttribute(DeltaSession.java:597) at org.apache.catalina.ha.session.DeltaRequest.execute(DeltaRequest.java:164) at org.apache.catalina.ha.session.DeltaManager.handleSESSION_DELTA(DeltaManager.java:1403) at org.apache.catalina.ha.session.DeltaManager.messageReceived(DeltaManager.java:1357) at org.apache.catalina.ha.session.DeltaManager.messageDataReceived(DeltaManager.java:1093) at org.apache.catalina.ha.session.ClusterSessionListener.messageReceived(ClusterSessionListener.java:87) at org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:901) at org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:882) at org.apache.catalina.tribes.group.GroupChannel.messageReceived(GroupChannel.java:269) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.interceptors.TcpFailureDetector.messageReceived(TcpFailureDetector.java:110) at org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79) at org.apache.catalina.tribes.group.ChannelCoordinator.messageReceived(ChannelCoordinator.java:241) at org.apache.catalina.tribes.transport.ReceiverBase.messageDataReceived(ReceiverBase.java:225) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.drainChannel(NioReplicationTask.java:188) at org.apache.catalina.tribes.transport.nio.NioReplicationTask.run(NioReplicationTask.java:91) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619)
Re: Tomcat classpath fpr jar-within-jar
Op maandag, 26 april 2010 19:00 schreef Christopher Schultz ch...@christopherschultz.net: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ronald, On 4/26/2010 8:53 AM, Ronald Klop wrote: That is not possible in Java (not only in Tomcat, but not possible in any java application). You must extract jar B from jar A and put both on the classpath. But it would be a nice feature and you can probably vote for an issue about it in the bug database of Sun/Oracle. Really? I would think that a custom ClassLoader would allow this behavior. To answer the OPs question: there's no way to do this without at least writing some of your own code (such as a ClassLoader). Yep. You are right. It is possible, just not out of the box.
Re: Tomcat classpath fpr jar-within-jar
That is not possible in Java (not only in Tomcat, but not possible in any java application). You must extract jar B from jar A and put both on the classpath. But it would be a nice feature and you can probably vote for an issue about it in the bug database of Sun/Oracle. Ronald. Op maandag, 26 april 2010 14:05 schreef Adam Lipscombe adam.lipsco...@googlemail.com: Folks, Firstly, apologies if this question is a no-brainer. I have a war file containing a jar file (jar A) in the WEB-INF/lib directory. Jar A contains another another jar file (jar B). The structure of Jar A is class files under com/... and jar B. Classes inside jar B do not seem to be accessible to code in the application. Tomcat throws a SEVERE: Servlet /ExpenSysWT threw load() exception javax.servlet.UnavailableException: ... How do I arrange it so that code in my application can see classes in jar B? TIA - Adam -- Adam Lipscombe E: adam.lipsco...@gmail.com Skype: adam_lipscombe - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: getServerName returns 'localhost'
Did you do something like this in server.xml? Engine defaultHost=localhost Host name=localhost / /Engine And your client goes to www.example.com, but you getServerName() returns localhost in stead of www.example.com? Ronald. Op woensdag, 3 maart 2010 14:19 schreef vgud ivan.gudi...@yahoo.com: Users use tomcat directly. My server responds to different domain names, and I want to know which one users use. I try to get domain name by request.getServerName() but instead of domainName.com I get 'localhost'. awarnier wrote: vgud wrote: Gentlemen, I have the application which could be accessed from different domain addresses and I need to know from what domain request was sent. I try to get following from request: getRemoteHost: 127.0.0.1 getServerName: localhost I use tomcat 5.5 and I suppose i should configure something to get correct domain name. Can anyone help me?? Any help will be apreciated. Are users accessing Tomcat directly ? or through an Apache front-end for example ? Also, your question above is not very clear. Can you revisit your usage of from above, and rephrase what you are trying to get exactly ? Do you mean that your server responds to different domain names, and you want to know which one users use ? Or do you want to know from which (user-side) IP address they are accesing your server ? - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- View this message in context: http://old.nabble.com/getServerName-returns-%27localhost%27-tp27767838p27768081.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: 6.0.19 feature to not swallow input if the connection is going to be closed
Hello, I think this is an interesting question. I wonder why there is no answer. Ronald. Op vrijdag, 8 januari 2010 17:20 schreef Lock Ian IC ian.l...@uk.fujitsu.com: Hi There was a feature introduced in 6.0.19 to not swallow the inputStream if the servlet throws an exception and the connection is going to be closed. Without this, Tomcat drains the inputStream, so for example If you're uploading a large file it ties up the thread until input is drained - which could be ages. I've not been able to get this feature working. My servlet sets the response status to SC_REQUEST_ENTITY_TOO_LARGE which Tomcat recognises it should drop the connection for, but the Http11Processor.java code doesn't set the error flag which controls whether or not the inputStream is swallowed. The Http11Processor.java line of code in question in the 6.0.20 code set is 855. This line checks the value of keepAlive is true before setting the error flag which controls whether or not input is swallowed. keepAlive has previously been set to false by line 1590 so the error flag is not set. Am I missing something here? Is there a specific way for the servlet to invoke this functionality? Thanks very much Ian
Re: Tips on tracking down memory leaks
No. But historical results are not a guarantee for the future. It is very easy to make a heapdump with jmap and analyze it with MAT (http://www.eclipse.org/mat/) or other tools as suggested by others on this list. Ronald. Op woensdag, 13 januari 2010 11:44 schreef Greg McCane gregmcc...@yahoo.ca: Thanks Chuck. Is there any danger in taking a heap dump on our system running in production? Will it cause a significant performance hit or other nasty? Thanks again, Greg From: Caldarale, Charles R chuck.caldar...@unisys.com To: Tomcat Users List users@tomcat.apache.org Sent: Tue, January 12, 2010 11:31:16 PM Subject: RE: Tips on tracking down memory leaks From: Greg McCane [mailto:gregmcc...@yahoo.ca] Subject: Tips on tracking down memory leaks The memory growth appears to be in large chunks rather than slow, steady growth. Use a heap profiler to find out what's eating up the space and who is allocating it. Even the simple one (hprof) included in the 1.5 JDK will tell you that. Better ones (e.g., jhat) are available in 1.6, if you're willing to move up. There are also numerous 3rd-party profilers available, with YourKit being a favorite of many. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org __ The new Internet Explorer® 8 - Faster, safer, easier. Optimized for Yahoo! Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/
Re: Ignore http header if-modified-since
If it is 304 and not 404. You can implement the lastModified method on your Servlet and always return 0 or -1 (see the javadocs). Ronald. On Wed, 16 Dec 2009 15:47:33 +0100, Looijmans, Mike mike.looijm...@oce.com wrote: I assume you mean 304 (Not modified) instead of 404 (Not found). Simplest I can think of is to NOT put the last-modified header in your response. Then the browser won't send you an if-modified-since back. On the other hand, if you can put a datestamp on the response - e.g. a file date or by reading it from a DB or so - provide the proper response and you get client-side caching for (almost) free, which can seriously reduce load on a server. M. -Original Message- From: Abid Hussain [mailto:abid.huss...@dilax.com] Sent: woensdag 16 december 2009 14:11 To: users Subject: Ignore http header if-modified-since Hallo, when processing ajax-requests Tomcat sometimes responds with a 404 instead of delivering XML. This seems to happen when the http header if-modified-since in the request doesn't somehow contain the right value. At least, if the request doesn't contain this header, tomcat responds correctly. Is it possible to instruct tomcat to simply ignore this header so that the correct response will be delivered, whatever is contained in this header? Best regards, Abid (EOF) This message and attachment(s) are intended solely for use by the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a 'reply' message. Thank you for your co-operation. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: ArrayIndexOutOfBoundsException
You can compile Tomcat yourself and insert some debug statements at the
location of the exception.
Ronald.
Op dinsdag, 24 november 2009 18:17 schreef geoff...@fileflow.com:
The bytesRead returns the size of the buffer (8KB) every time. I also debug and
I can't find anything wrong. Input and OutputStream are not null, bytesRead is
the correct size and the buffer is also filled.
Any other ideas?
Best Regards
Geoffrey
On 24 Nov 2009, at 18:13, Ronald Klop wrote:
Try insert some debug statements just before the out.write.
System.out.println(bytesRead: + bytesRead) would be interesting.
In fact this is kind of my-first-debugging and you don't even mention you did try it.
Ronald.
Op dinsdag, 24 november 2009 17:57 schreef geoff...@fileflow.com:
Hi everyone.
I'm stuck with a problem I don't understand. We have a tomcat server and
after redeploying our war file, we get this error:
java.lang.ArrayIndexOutOfBoundsException
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:346)
at
org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:764)
at
org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:118)
at
org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:573)
at org.apache.coyote.Response.doWrite(Response.java:560)
at
org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:353)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:325)
at
org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:381)
at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:370)
at
org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89)
at com.fileflow.downloader.Downloader.doGet(Downloader.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
Notice that there are no number on the first line and it is usually the case.
The code that is responsible is:
private ServletOutputStream out;
private InputStream in;
...
in = new FileInputStream(tmp);
...
out = response.getOutputStream();
byte[] buf = new byte[8 * 1024]; // 8K buffer
int bytesRead;
while((bytesRead = in.read(buf)) 0) {
out.write(buf, 0, bytesRead);
}
The updated code didn't change anything in that Servlet so I really have no
clue what happened. It happens on tomcat 6.0.18 and 6.0.20. Java is 1.6.0_11.
Thanks for any help.
Best Regards
Geoffrey
Re: Tomcat Https loadbalancing??
Always make a drawing. client - https - tcp-loadbalancer - still same https connection- multiple tomcats client - https - http-loadbalancer (Apache, proxy) - new ajp/http(s) connection- multiple tomcats Normally the loadbalancer and tomcats are in the same private network. It is your choice if that is secure enough. In the end the data is unencrypted in the database I guess, so normally you trust your own network. Ronald. Op woensdag, 25 november 2009 10:18 schreef jkv j.kumara...@gmail.com: Hello, We are using Tomcat 6.0 and running HTTPS (enabled SSL). The number of requests has grown up and we have decided to do go for clustering and loadbalancing. We have decided to go for Apache and mod_proxy/mod_jk loadbalacing. My certificate resides in Tomcat. In order to loadbalance HTTPS request using Apache and mod_proxy/mod_jk, should I configure Apache to handle HTTPS and tell it about my certificate details? While loadbalancing I understand that http/https request to Apache is converted to ajp and tunneled to Tomcat, so is ajp protocol secure? should I enable SSL in tomcat to handle this request? Should I have two copies of my certificate files if Apache and Tomcat reside on two different physical machines(Horizontal Clustering)? I searched the forums and they are too advanced for my question. I am really new to clustering and load balancing and any help is deeply appreciated. Thanks in advance. Regards jkv -- View this message in context: http://old.nabble.com/Tomcat-Https-loadbalancing---tp26509573p26509573.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: [ANN] Apache Tomcat Native 1.1.18 released
This changelog link works better. http://tomcat.apache.org/native-doc/miscellaneous/changelog-1.1.x.html Cheers, Ronald. Op maandag, 23 november 2009 21:59 schreef jean-frederic clere jfcl...@gmail.com: The Apache Tomcat team announces the immediate availability of Apache Tomcat Native 1.1.18 stable. This release includes few bug fixes over Apache Tomcat Native 1.1.16 and fixes the client initiated part of cve-2009-3555, note that the server initiated renegociation was added in 1.1.17 (and is still in the 1.1.18 code). Please refer to the change log for the list of changes: http://tomcat.apache.org/native-doc/miscellaneous/changelog.html Downloads: http://tomcat.apache.org/download-native.cgi Thank you, -- The Apache Tomcat Team - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: ArrayIndexOutOfBoundsException
Try insert some debug statements just before the out.write.
System.out.println(bytesRead: + bytesRead) would be interesting.
In fact this is kind of my-first-debugging and you don't even mention you did
try it.
Ronald.
Op dinsdag, 24 november 2009 17:57 schreef geoff...@fileflow.com:
Hi everyone.
I'm stuck with a problem I don't understand. We have a tomcat server and after redeploying our war file, we get this error:
java.lang.ArrayIndexOutOfBoundsException
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:346)
at
org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:764)
at
org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:118)
at
org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:573)
at org.apache.coyote.Response.doWrite(Response.java:560)
at
org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:353)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:325)
at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:381)
at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:370)
at
org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89)
at com.fileflow.downloader.Downloader.doGet(Downloader.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
Notice that there are no number on the first line and it is usually the case.
The code that is responsible is:
private ServletOutputStream out;
private InputStream in;
...
in = new FileInputStream(tmp);
...
out = response.getOutputStream();
byte[] buf = new byte[8 * 1024]; // 8K buffer
int bytesRead;
while((bytesRead = in.read(buf)) 0) {
out.write(buf, 0, bytesRead);
}
The updated code didn't change anything in that Servlet so I really have no clue what happened. It happens on tomcat 6.0.18 and 6.0.20. Java is 1.6.0_11.
Thanks for any help.
Best Regards
Geoffrey
Re: Howto Socket (TCP / IP ) reading from a war application on Tomcat
On Fri, 20 Nov 2009 07:13:44 +0100, Karthik Nanjangude karthik.nanjang...@xius-bcgi.com wrote: Hi This is not Fun dude... I know how to write a SOCKET Programming for Standalone, How do I write a socket Listener for WEB Application running over TOMCAT when the application is up and running.? Please be serious...I asked for some help or ideas :( Tomcat is a Servlet engine. You can use Tomcat to write/run Servlets. What is your setup? client -A- tomcat -B- 3rd party app? 'A' is handled by a servlet? And you have to write 'B'? Can you provide more information? Ronald. With regards KArthik -Original Message- From: Ronald Klop [mailto:ronald-mailingl...@base.nl] Sent: Thursday, November 19, 2009 9:06 PM To: Tomcat Users List Subject: Re: Howto Socket (TCP / IP ) reading from a war application on Tomcat On Thu, 19 Nov 2009 14:59:16 +0100, Karthik Nanjangude karthik.nanjang...@xius-bcgi.com wrote: Hi Can some body provide me a sample code for Socket (TCP / IP ) reading from a war application on Tomcat Can Listeners be made use of for the same? Reason: I need to Accept / Reply a XML File over the socket port from 3rd party application (as Client ) Also the Soap (Approached was not recommended for this existing application ) With regards Karthik See here for some examples: http://tinyurl.com/ylq2zlj -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Howto Socket (TCP / IP ) reading from a war application on Tomcat
On Fri, 20 Nov 2009 13:20:04 +0100, Karthik Nanjangude karthik.nanjang...@xius-bcgi.com wrote: Hi You mentioned XML - use some existing library that works with XML. A 3rd party Client S/w of C++ sends an XML string over socket This socket is be defined and read by *Process* of web application You are not having a problem with a Tomcat installation. TOMCAT 6.0.2.0 JDK 1.6.0 O/s Linux / Unix / Windows Why are you determined to use a Socket? Soap over HTTP (Approached was not recommended by the existing client s/w You are not stating what you've tried. With a Load on Startup servlet tried to listen to the socket,which does not work What went wrong? There is no reason why such a thing should not work. Just instantiate a static class/Thread which listens on a port. I don't understand your problem. It is the same as a standalone program except you are starting your class differently. Ronald. People get paid to write code and solve this type of problem I have been using this form since 2000 (almost 10 years) and have giving solutions /ideas to not so smart guys like me This form was created for the same cause, I presume not to make money :( With regards Karthik -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Friday, November 20, 2009 3:34 PM To: users@tomcat.apache.org Subject: Re: Howto Socket (TCP / IP ) reading from a war application on Tomcat On 20/11/2009 06:13, Karthik Nanjangude wrote: Hi This is not Fun dude... I know how to write a SOCKET Programming for Standalone, How do I write a socket Listener for WEB Application running over TOMCAT when the application is up and running.? Please be serious...I asked for some help or ideas :( You mentioned XML - use some existing library that works with XML. Why are you determined to use a Socket? You're making an HTTP connection, if you must do it the hard way, use an appropriate class, e.g. HttpURLConnection. http://lmgtfy.com/?q=java+Socket http://lmgtfy.com/?q=java+HttpURLConnection You're not asking questions that anyone here is likely to want to help you with because: 1. You are not having a problem with a Tomcat installation. 2. You are not being specific about what the real issue is. 3. You are not stating what you've tried. 4. People get paid to write code and solve this type of problem. You've posted on this list before and received help, no? You've read this before, yes? http://catb.org/~esr/faqs/smart-questions.html p With regards KArthik -Original Message- From: Ronald Klop [mailto:ronald-mailingl...@base.nl] Sent: Thursday, November 19, 2009 9:06 PM To: Tomcat Users List Subject: Re: Howto Socket (TCP / IP ) reading from a war application on Tomcat On Thu, 19 Nov 2009 14:59:16 +0100, Karthik Nanjangude karthik.nanjang...@xius-bcgi.com wrote: Hi Can some body provide me a sample code for Socket (TCP / IP ) reading from a war application on Tomcat Can Listeners be made use of for the same? Reason: I need to Accept / Reply a XML File over the socket port from 3rd party application (as Client ) Also the Soap (Approached was not recommended for this existing application ) With regards Karthik See here for some examples: http://tinyurl.com/ylq2zlj -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Howto Socket (TCP / IP ) reading from a war application on Tomcat
On Fri, 20 Nov 2009 14:22:57 +0100, André Warnier a...@ice-sa.com wrote: Ronald Klop wrote: On Fri, 20 Nov 2009 13:20:04 +0100, Karthik Nanjangude karthik.nanjang...@xius-bcgi.com wrote: Hi You mentioned XML - use some existing library that works with XML. A 3rd party Client S/w of C++ sends an XML string over socket This socket is be defined and read by *Process* of web application You are not having a problem with a Tomcat installation. TOMCAT 6.0.2.0 JDK 1.6.0 O/s Linux / Unix / Windows Why are you determined to use a Socket? Soap over HTTP (Approached was not recommended by the existing client s/w You are not stating what you've tried. With a Load on Startup servlet tried to listen to the socket,which does not work What went wrong? There is no reason why such a thing should not work. Just instantiate a static class/Thread which listens on a port. I don't understand your problem. It is the same as a standalone program except you are starting your class differently. Just jumping in here for a minute.. Isn't there some fundamental logical problem here ? Unless I am mistaken, we are talking about a webapp running under Tomcat. This webapp is being run when there is a request (in principle, a HTTP request) received by Tomcat, whose URL matches one that the webapp is mapped to. Now if that webapp gets started, somehow, and even if it starts listening on a socket (separate from the Tomcat Connector listening sockets), isn't that socket not going to be listening anymore when that webapp, somehow, stops running ? I fail to see the inherent logic in running something like this under Tomcat. I mean, even if somehow it works, what is the benefit of running this under a servlet engine ? Should this not be instead a stand-alone application ? That is something everybody except the OP is wondering about. :-) Ronald. -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: 64bit Tomcat for Windows
On Thu, 19 Nov 2009 13:30:19 +0100, Bruce Foster gis.fos...@gmail.com wrote: Hi List, I have another thread running and someone suggested to use 64bit JDK on my Windows 2003 server 64 bit. Wonder, if there is a 64 bit installer for Tomcat on Windows. I see my current tomcat is running x86 folder in 32 bit mode. Tomcat isn't 64 or 32 bits. Tomcat just uses the JVM it is running on. Ronald. -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Howto Socket (TCP / IP ) reading from a war application on Tomcat
On Thu, 19 Nov 2009 14:59:16 +0100, Karthik Nanjangude karthik.nanjang...@xius-bcgi.com wrote: Hi Can some body provide me a sample code for Socket (TCP / IP ) reading from a war application on Tomcat Can Listeners be made use of for the same? Reason: I need to Accept / Reply a XML File over the socket port from 3rd party application (as Client ) Also the Soap (Approached was not recommended for this existing application ) With regards Karthik See here for some examples: http://tinyurl.com/ylq2zlj -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed
Hi Imad, I think also that Tomcat should only invalidate the Session on shutdown if it is the last node in the cluster. But the developers of Tomcat think of it as invalidating the Session object (as in java Object) and you and me see it as invalidating the session of the user. Ronald. (The Ronald of the link mentioned by Pid.) Op dinsdag, 17 november 2009 14:36 schreef Imad Hachem hachem_i...@hotmail.com: Dear Pid, I am running a Logout Process at each sessionDestroy. After applying the Cluster configuration, I don't want to Logout my Users (or run this Logout Process) after any Tomcat Cluster node shutdown, since the Session has been replicated to the other Node Cluster. Best Regards, Imad Hachem System Engineer From: p...@pidster.com Date: Tue, 17 Nov 2009 13:09:47 + Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed To: users@tomcat.apache.org On 17 Nov 2009, at 12:11, Imad Hachem hachem_i...@hotmail.com wrote: Dear Pid, I have tried that code and didn't helped, note that my context session variables are not coming as null in order to rely on to be able to differenciate between Tomcat Node shutdown session.invalidate(). I'm sorry but I don't understand what you're saying here. Tomcat the servlet api can't tell you the difference between an app shutdown and a session expiry without you writing code. What did you try? What was or wasn't null exactly? p Best Regards, Imad Hachem System Engineer Date: Tue, 17 Nov 2009 11:41:20 + From: p...@pidster.com To: users@tomcat.apache.org Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed On 17/11/2009 11:31, Imad Hachem wrote: Dear Pid, Thanks for your reply. But can you specify exactly which Servlets API method to use? The link I sent had some code in it, did you read it? Note that Tomat-5.5.12 is deployed on Production environment and we are not facing major issues. But you might be facing some security ones. I will appreciate if you can adivse to which Tomcat Stable version we should Migrate taking in consideration that Tomcat Cluster is used in our environment as well. The latest: Tomcat 5.5.28. Same app, many bugfixes. Your version was released September 2005, over 4 years ago (that's 28 internet years). It's not good practice to avoid upgrading for that long. p Best Regards, Imad Hachem System Engineer Date: Tue, 17 Nov 2009 10:15:58 + From: p...@pidster.com To: users@tomcat.apache.org Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed On 17/11/2009 04:14, Imad Hachem wrote: Dear all, I am using Tomcat-5.5.12 as Clustering nodes, and after one node shutdown sessionDestroyed is called before contextDestroyed. Are you still using 5.5.12? Hasn't anyone advised you to upgrade to a newer version yet? I think it's perfectly reasonably to call sessionDestroyed() before contextDestroyed(). How can I know if sessionDestroyed is called from session.invalidate() from the real expiration of the session or shutdown of one cluster node? You can't know this directly from the Servlet API methods. Note that on sessionDestroyed event, I am using a Logout behavior to logout my users from the DATABASE. I have tried to set a KEY on the context (or application scope) to check on it during the sessionDestroyed event, but it seems the context is destroyed after the session destroy event. This comes up not infrequently on the list, the archives have more information: http://old.nabble.com/Re%3A-sessionListener.sessionDestroyed-is-called-on-shutdown-of-a-node-in-the-cluster-p16746969.html Is there any event listener that I can use before the sessionDestroyed to differentiate if one cluster node has been shutdown or my session has been expired? Or is how to configure the contextDestroy to be called before the sessions destroy? No, contextDestroyed() means that the web application itself has been stopped, this is mandated by the Servlet Spec. p Thanks in advance for your help. Best Regards, Imad Hachem System Engineer _ Windows Live: Make it easier for your friends to see what yo u锟斤拷re up to on Facebook. http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_2:092009 --- -- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail:
RE: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed
Hi Imad, You can do everything you like, but it will all be dirty. 1. Set a global variable in your webapp before shutdown of a node. To see If it is a planned shutdown or not. 2. Keep references about the nr. of clusternodes yourself. Can be done quite cleanly with JMX. 3. Do not really logout the user. Only mark a logout time. If another node shuts down or the user really logs out it will overwrite the logout time. And in the end the data is quite correct. (This is what I do.) Everything as pros and cons. Be creative. (I would like to here what works for you.) But the developers of Tomcat think of it as invalidating the Session object (as in java Object) and you and me see it as invalidating the session of the user. This phrase was not very accurate. I meant destroy in stead of invalidating. Because those are different things. Ronald. Op dinsdag, 17 november 2009 16:23 schreef Imad Hachem hachem_i...@hotmail.com: Hi Ronald, Thanks for your reply. So, what 's the solution in my Case? I need to differentiate between Tomat Cluster node shutdown and session.invalidate and session Timout? Is that Possible as configuration or Programming ? Best Regards, Imad Hachem System Engineer Date: Tue, 17 Nov 2009 15:40:30 +0100 From: ronald-mailingl...@base.nl To: users@tomcat.apache.org Subject: RE: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed Hi Imad, I think also that Tomcat should only invalidate the Session on shutdown if it is the last node in the cluster. But the developers of Tomcat think of it as invalidating the Session object (as in java Object) and you and me see it as invalidating the session of the user. Ronald. (The Ronald of the link mentioned by Pid.) Op dinsdag, 17 november 2009 14:36 schreef Imad Hachem hachem_i...@hotmail.com: Dear Pid, I am running a Logout Process at each sessionDestroy. After applying the Cluster configuration, I don't want to Logout my Users (or run this Logout Process) after any Tomcat Cluster node shutdown, since the Session has been replicated to the other Node Cluster. Best Regards, Imad Hachem System Engineer From: p...@pidster.com Date: Tue, 17 Nov 2009 13:09:47 + Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed To: users@tomcat.apache.org On 17 Nov 2009, at 12:11, Imad Hachem hachem_i...@hotmail.com wrote: Dear Pid, I have tried that code and didn't helped, note that my context session variables are not coming as null in order to rely on to be able to differenciate between Tomcat Node shutdown session.invalidate(). I'm sorry but I don't understand what you're saying here. Tomcat the servlet api can't tell you the difference between an app shutdown and a session expiry without you writing code. What did you try? What was or wasn't null exactly? p Best Regards, Imad Hachem System Engineer Date: Tue, 17 Nov 2009 11:41:20 + From: p...@pidster.com To: users@tomcat.apache.org Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed On 17/11/2009 11:31, Imad Hachem wrote: Dear Pid, Thanks for your reply. But can you specify exactly which Servlets API method to use? The link I sent had some code in it, did you read it? Note that Tomat-5.5.12 is deployed on Production environment and we are not facing major issues. But you might be facing some security ones. I will appreciate if you can adivse to which Tomcat Stable version we should Migrate taking in consideration that Tomcat Cluster is used in our environment as well. The latest: Tomcat 5.5.28. Same app, many bugfixes. Your version was released September 2005, over 4 years ago (that's 28 internet years). It's not good practice to avoid upgrading for that long. p Best Regards, Imad Hachem System Engineer Date: Tue, 17 Nov 2009 10:15:58 + From: p...@pidster.com To: users@tomcat.apache.org Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed On 17/11/2009 04:14, Imad Hachem wrote: Dear all, I am using Tomcat-5.5.12 as Clustering nodes, and after one node shutdown sessionDestroyed is called before contextDestroyed. Are you still using 5.5.12? Hasn't anyone advised you to upgrade to a newer version yet? I think it's perfectly reasonably to call sessionDestroyed() before
Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed
@P I didn't want to pollute my deployment process with this manual stuff. So I 'solved' it different for our setup. I do not log users out on sessionDestroy. I only record that they are logged out. Which is overwritten by later logout events. So in the end the data is pretty ok. Not very nice, but nice enough for me. Ronald. Op dinsdag, 17 november 2009 16:38 schreef Pid p...@pidster.com: On 17/11/2009 14:40, Ronald Klop wrote: Hi Imad, Ronald. (The Ronald of the link mentioned by Pid.) Did the code supplied therein, work for you Ronald? @Imad The Servlet Spec (and therefore Tomcat) doesn't differentiate between causes of session expiry. The code requires you to set a value in the application scope, then the HttpSessionListener sessionDestroyed method checks for that value. If the value is present, you initiated shutdown. If it is not, then it's probably a session expiry and you run your logout code. Did you actually set such an attribute? p Op dinsdag, 17 november 2009 14:36 schreef Imad Hachem hachem_i...@hotmail.com: Dear Pid, I am running a Logout Process at each sessionDestroy. After applying the Cluster configuration, I don't want to Logout my Users (or run this Logout Process) after any Tomcat Cluster node shutdown, since the Session has been replicated to the other Node Cluster. Best Regards, Imad Hachem System Engineer From: p...@pidster.com Date: Tue, 17 Nov 2009 13:09:47 + Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed To: users@tomcat.apache.org On 17 Nov 2009, at 12:11, Imad Hachem hachem_i...@hotmail.com wrote: Dear Pid, I have tried that code and didn't helped, note that my context session variables are not coming as null in order to rely on to be able to differenciate between Tomcat Node shutdown session.invalidate(). I'm sorry but I don't understand what you're saying here. Tomcat the servlet api can't tell you the difference between an app shutdown and a session expiry without you writing code. What did you try? What was or wasn't null exactly? p Best Regards, Imad Hachem System Engineer Date: Tue, 17 Nov 2009 11:41:20 + From: p...@pidster.com To: users@tomcat.apache.org Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed On 17/11/2009 11:31, Imad Hachem wrote: Dear Pid, Thanks for your reply. But can you specify exactly which Servlets API method to use? The link I sent had some code in it, did you read it? Note that Tomat-5.5.12 is deployed on Production environment and we are not facing major issues. But you might be facing some security ones. I will appreciate if you can adivse to which Tomcat Stable version we should Migrate taking in consideration that Tomcat Cluster is used in our environment as well. The latest: Tomcat 5.5.28. Same app, many bugfixes. Your version was released September 2005, over 4 years ago (that's 28 internet years). It's not good practice to avoid upgrading for that long. p Best Regards, Imad Hachem System Engineer Date: Tue, 17 Nov 2009 10:15:58 + From: p...@pidster.com To: users@tomcat.apache.org Subject: Re: MISC; Tomcat-5.5.12; After one Tomcat Cluster node shutdown, sessionDestroyed been called before contextDestroyed On 17/11/2009 04:14, Imad Hachem wrote: Dear all, I am using Tomcat-5.5.12 as Clustering nodes, and after one node shutdown sessionDestroyed is called before contextDestroyed. Are you still using 5.5.12? Hasn't anyone advised you to upgrade to a newer version yet? I think it's perfectly reasonably to call sessionDestroyed() before contextDestroyed(). How can I know if sessionDestroyed is called from session.invalidate() from the real expiration of the session or shutdown of one cluster node? You can't know this directly from the Servlet API methods. Note that on sessionDestroyed event, I am using a Logout behavior to logout my users from the DATABASE. I have tried to set a KEY on the context (or application scope) to check on it during the sessionDestroyed event, but it seems the context is destroyed after the session destroy event. This comes up not infrequently on the list, the archives have more information: http://old.nabble.com/Re%3A-sessionListener.sessionDestroyed-is-called-on-shutdown-of-a-node-in-the-cluster-p16746969.html Is there any event listener that I can use before the sessionDestroyed to differentiate if one cluster node has been shutdown or my session has been expired? Or is how to configure the contextDestroy to be called before
Re: loading a CharsetProvider via WebappClassLoader
Kris, Thanks a lot for these pointers. It makes a lot very clear and we will do the dirty workaround now and vote for the bugs at the Sun website. Ronald. Op donderdag, 29 oktober 2009 16:48 schreef Kris Schneider kschnei...@gmail.com: I guess this bug will be of interest since it mentions both jutf7 and webapps ;-) http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4619777 On Thu, Oct 29, 2009 at 11:42 AM, Kris Schneider kschnei...@gmail.com wrote: While the Javadoc for CharsetProvider claims that providers are looked up via the current thread's context class loader, the code for Charset seems to clearly be using ClassLoader.getSystemClassLoader()... On Thu, Oct 29, 2009 at 10:51 AM, Ronald Klop ronald-mailingl...@base.nl wrote: Hi, I have this jar (jutf7.jar) which should register itself with the CharsetProvider of Java. If I put it in the WEB-INF/lib directory it is ignored by Java. I understand that this is because of order in which the WebappClassLoader asks all other classloaders for a class. How can this be solved? Withouting having to deploy a jar file outside of the webapp. Or is this not possible? Thanks in advance for any tips. Ronald. -- Kris Schneider -- Kris Schneider - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
loading a CharsetProvider via WebappClassLoader
Hi, I have this jar (jutf7.jar) which should register itself with the CharsetProvider of Java. If I put it in the WEB-INF/lib directory it is ignored by Java. I understand that this is because of order in which the WebappClassLoader asks all other classloaders for a class. How can this be solved? Withouting having to deploy a jar file outside of the webapp. Or is this not possible? Thanks in advance for any tips. Ronald.
FOO / HTTP/1.1
Hi, If I send this to my Tomcat it responds with HTTP/1.1 200 OK and calls my servlet. :-) telnet localhost 8080 FOO / HTTP/1.1 Host: localhost What is this suppost to do? Ronald.
Re: FOO / HTTP/1.1
The question is why Tomcat does not return a 501 NOT IMPLEMENTED error like Apache does? But I already found something. It does give a 501 when I call my servlet which only implements doGet, but when it goes to index.jsp the jsp stuff calls the service() method which doesn't check the http method. Probably this is ok. Ronald. Op maandag, 12 oktober 2009 12:01 schreef André Warnier a...@ice-sa.com: Ronald Klop wrote: Hi, If I send this to my Tomcat it responds with HTTP/1.1 200 OK and calls my servlet. :-) telnet localhost 8080 FOO / HTTP/1.1 Host: localhost What is this suppost to do? :-) I don't know what is the context, and how you determine that Tomcat is the target, nor how you know that your servlet is being called, but on the face if it, it does exactly what it is supposed to do. From the above, the conclusions that can be drawn are : - there is a webserver on localhost which answers to port 8080 - it has a valid document to return for the URL / - and it is not too picky about HTTP verbs, since it seems to consider FOO as an acceptable alias for GET If you want more information, I am afraid that you will have to supply more details about your configuration, and maybe explain exactly what the question is. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: POST request with timeout acts weird
Op maandag, 5 oktober 2009 00:47 schreef André Warnier a...@ice-sa.com: Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ronald, On 10/2/2009 9:20 AM, Ronald Klop wrote: But I don't send any data. My servlet than waits in getParameterMap(), because that try's to read the inputstream and parse the parameters. After 20 seconds (Connector has connectionTimeout=2) the reading of the inputstream ends, but my application just gets an empty Map in stead of some TimeoutException. What leads you to believe that a TimeoutException would be thrown? The documentation for the HTTP connector's connectionTimeout attribute says: The number of milliseconds this Connector will wait, after accepting a connection, for the request URI line to be presented. The default value is 6 (i.e. 60 seconds). You provided the URI line within plenty of time. If you didn't enter anything, Tomcat would disconnect. Since you did, it doesn't. ... Doesn't the fact that the read on the inputstream returns, imply that there is actually a timeout, even if it is not returned to the webapp ? And, to Ronald : if the request is a POST, and it has a Content-length, and you get an empty parameter map after 20 seconds, can't you just reject the request as invalid ? And, curiosity : if you set the Connector timeout to 30 seconds, does your inputstream then return after 30 seconds too ? Yes it implies there is a timeout, but it is kind of guessing if it was a timeout or really an empty ParameterMap for the webapp. This can be workarounded by always including a dummyvar in the parameters as Christopher Shultz mentions or checking the Content-Length. But maybe Tomcat can do something better internally. Yes if I set the connector timeout to 30 seconds it returns after 30 seconds. My other workaround is doing a GET ajax in stead of POST. For this case the url wouldn't be too long for Internet Explorer and than more data is send at once over the network. Ronald.
Re: POST request with timeout acts weird
Op zondag, 4 oktober 2009 22:23 schreef Christopher Schultz
ch...@christopherschultz.net:
Ronald,
On 10/2/2009 9:20 AM, Ronald Klop wrote:
But I don't send any data. My servlet than waits in getParameterMap(),
because that try's to read the inputstream and parse the parameters.
After 20 seconds (Connector has connectionTimeout=2) the reading
of the inputstream ends, but my application just gets an empty Map in
stead of some TimeoutException.
What leads you to believe that a TimeoutException would be thrown? The
documentation for the HTTP connector's connectionTimeout attribute says:
The number of milliseconds this Connector will wait, after accepting a
connection, for the request URI line to be presented. The default value
is 6 (i.e. 60 seconds).
You provided the URI line within plenty of time. If you didn't enter
anything, Tomcat would disconnect. Since you did, it doesn't.
Why? And how should I handle this?
Honestly, I'm not sure if there's a way to check to see if all bytes
advertised in Content-Length were actually consumed by a request.
(The real problem is that IE has some issue's and that some of my
customers sometimes send synchronous ajax calls which don't send any
data. I'm investigating that too. If somebody has a tip about that it is
also appreciated.)
Technically speaking, the HTTP spec does not require the Content-Length
to be correct(!). I think this is something that your webapp is just
going to have to tolerate.
Perhaps you could add a parameter to all your requests like 'last=true'
and always make that the last parameter submitted. If the last parameter
has the value true then the POST was sane. Otherwise, reject the
request. Just a thought.
- -chris
There is even more fun about the documentation of connectionTimeout. It states
that it waits for the URI after accepting the connection, but in my example
Tomcat is not waiting for the URI, but for data from the request. So
connectionTimeout does much more than what is mentioned in the documentation.
I know about the issue of interpreting the Content-Length in comination with
charsets and Content-Encoding and Transfer-Encoding.
But I guess Tomcat does something like this.
Socket s = ...;
s.setSoTimeout(2);
InputStream in = s.getInputStream();
try {
in.read();
} catch (SocketTimeoutException e) {
// Ignore and give (part of the) data to the Servlet, because the specs of
getParameter(...) gives us no room for bubbling up this exception.
}
I will verify if this is correct in the code, but I hope to illustrate what I
puzzled by. I can't handle this situation without workarounds, while the
problem is so simple.
I think the lazy evaluation of the POST parameters in Tomcat is making it very
difficult to give good errors. But don't take this wrong. I'm not telling that
the advantages of lazy evalution are bigger of smaller.
Ronald.
