Re: Need Help - Mod_jk/Apache - Mutiple Content issue
On 10.09.2009 06:30, balakarthik.baska...@wipro.com wrote: Hi Rainer, I did try with the recovery_option as 7 and I was able to see a partial content being sent even in that case.Also,this configuration is what we tried in prod as well(we removed socket_timeout,had reply_timeout to 3 mins and recovery_options to 7).But still multiple content was seen.So,hope this partial content was the one that was served to akamai and guess its messed up there. Partial content is possible. We can't take it back, once it is sent to the client, and we can't fix, if the backend doesn't send all the response. Partial content should not lead to dublicate content though. Partial content can be detected by the client, because either the content length is not right, or the chunked encoded transfer ends prematurely. The client (akamai) should then not serve this partial content. Also,when this option is set,the session failover behaviour gets completely ruled out as we make the worker not to retry and this will not try to contact the other worker and thereby the other app instance. No, failover should still work. Pfa the configuration files that I used in my local setup. They didn't make it to the list. You can try to post inline. Regards, Rainer -Original Message- From: Rainer Jung [mailto:rainer.j...@kippdata.de] Sent: Wednesday, September 09, 2009 11:39 PM To: users@tomcat.apache.org Subject: Re: Need Help - Mod_jk/Apache - Mutiple Content issue On 09.09.2009 16:11, balakarthik.baska...@wipro.com wrote: Thanks for your reply.I am able to simulate the problem with 1.2.28 as well.This is the mod_jk version that I used in my local setup.Our prod version has 1.2.27.So regardless of the version,the issue is seen. OK Pfa the detailed debug logs of mod_jk for different combinations that I tried out and when the issue occured. Thanks. The reason is in your configuration. There is one switch that is much recommended and form the logs it seems you already found and tried it: the recovery_options. See: http://tomcat.apache.org/connectors-doc/reference/workers.html and also look carefully at: http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html You should set recovery_options to 7. This switch is exactly for disabling request retries in case Tomcat already replied, or at least the request was send to Tomcat. It should fix your problem. So maybe we are back to the beginning: why don't you post your config, so we can see, if there is more potential for optimization. From the timestamps in the jk log I can see e.g., that you are using a hard configured time stamp format. That's not to good, because that way you don't see the milliseconds, that are logged since a couple of versions by default. The other main scenario apart from the one explained below that I am seeing is when I tried setting up a JBOSS cluster node setup of two nodes with session replication (with socket_timeout not set or default to infinite).Node 1 app code is made to take a longer time to respond.When the node1 has started writing a huge chunk,I abruptly kill the node 1 and I see mod_jk failing over the request to node2.But the end result is the data written by node1 until it has been killed clubbed with the data written by node2 is seen in the browser. Will also be fixed by recovery_options. This is where we are not able to make a decision of even having socket_timeout to be infinite or to a defined limit(as we never know how long/when the root cause of the delay might occur) as there may be lot of possibility of failover and we suscpect the multiple content issue would be coming up when failover happens.The worst part is when akamai comes into picture where I hope this partial content is cached in their edge servers and completely messes up by showing the content to the users.So for all other subsequent requests,the data which is served from akamai cache is the messedup multiple content thereby completely degrading the customer experience. See above. I generally am not in favor of the socket_timeout. Even after your original problem goes away by using recovery_options, the behaviour of the general socket_timeout is not very nice. I would stick with a couple of the other timeouts. Regards, Rainer -Original Message- From: Rainer Jung [mailto:rainer.j...@kippdata.de] Sent: Wednesday, September 09, 2009 7:16 PM To: Tomcat Users List Subject: Re: Need Help - Mod_jk/Apache - Mutiple Content issue Hi, On 09.09.2009 06:56, balakarthik.baska...@wipro.com wrote: Hi, In our production envt,we are making use of a configuration of Apache(2.2.10-1)+Mod_jk(1.2.27)+JBOSS(4.0.5)+ATG 2007.1. We are facing a problem where multiple content is being displayed to the customer.It was observed that the pages were being periodically rendered or rendered multiple times.The page was rendered with a
Re: bypassing a servlet mapping to /*
Thanx Chuck, Martin. chucks solution came first, so I tried it first, and it worked, but not the way i actually expected. If I add ALL mappings to the web.xml - it works: servlet-mapping servlet-namejsp/servlet-name url-pattern/net/java/dev/moskito/webui/jsp/Producers.jsp/url-pattern /servlet-mapping servlet-mapping servlet-namejsp/servlet-name url-pattern/net/java/dev/moskito/webui/jsp/ProducersXML.jsp/url-pattern /servlet-mapping ... But If I add only the path: servlet-mapping servlet-namejsp/servlet-name url-pattern/net/java/dev/moskito/webui/jsp/*/url-pattern /servlet-mapping it doesn't, and I don't understand why? Shouldn't the most 'matching' mapping win? For /net/java/dev/moskito/webui/jsp/ProducersXML.jsp Shouldn't url-pattern/net/java/dev/moskito/webui/jsp/ProducersXML.jsp/url-pattern win over url-pattern/*/url-pattern regards Leon On Wed, Sep 9, 2009 at 9:07 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Leon Rosenberg [mailto:rosenberg.l...@googlemail.com] Subject: bypassing a servlet mapping to /* /net/java/dev/moskito/webui/jsp/Producers.jsp now the request is processed by the servlet engine and is grabed by the spring dispatcher with an error: You can always put the complete mapping for the .jsp entries of interest into WEB-INF/web.xml and direct it to Tomcat's JSP servlet; since the longest match wins, that will override the Spring mapping. - 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 - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: bypassing a servlet mapping to /*
From: Leon Rosenberg [mailto:rosenberg.l...@googlemail.com] Subject: Re: bypassing a servlet mapping to /* But If I add only the path: servlet-mapping servlet-namejsp/servlet-name url-pattern/net/java/dev/moskito/webui/jsp/*/url-pattern /servlet-mapping it doesn't, and I don't understand why? Shouldn't the most 'matching' mapping win? Yes. What are the actual URLs being used here? - 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
Re: bypassing a servlet mapping to /*
On Thu, Sep 10, 2009 at 2:56 PM, Caldarale, Charles R
chuck.caldar...@unisys.com wrote:
From: Leon Rosenberg [mailto:rosenberg.l...@googlemail.com]
Subject: Re: bypassing a servlet mapping to /*
But If I add only the path:
servlet-mapping
servlet-namejsp/servlet-name
url-pattern/net/java/dev/moskito/webui/jsp/*/url-pattern
/servlet-mapping
it doesn't, and I don't understand why?
Shouldn't the most 'matching' mapping win?
Yes.
What are the actual URLs being used here?
the first request comes as
/mui/mskShowAllProducers and is mapped to a filter, which, after
performing some tasks, calls:
if (forward!=null){
req.getRequestDispatcher(forward.getPath()).forward(req, res);
}
forward.getPath() would be -
/net/java/dev/moskito/webui/jsp/Producer.jsp - a string field.
and if i use mapping with asterisk (/net/java/dev/moskito/webui/jsp/*)
, i see log errors from dispatcher servlet that it doesn't know how to
map
/net/java/dev/moskito/webui/jsp/Producer.jsp.
if i use direct mapping /net/java/dev/moskito/webui/jsp/Producer.jsp
in the web.xml (namely define EACH jsp, EACH image and EACH other
item)
it works.
regards
Leon
- Chuck
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Re: Need Help - Mod_jk/Apache - Mutiple Content issue
balakarthik.baska...@wipro.com wrote: ... Just jumping in here, but doesn't that request to /test/test.jsp appear to be looping ? or is that by design ? ReplyTimeout_Analysis.txt : [Thu Sep 10 14:46:47 2009][5024:2952] [debug] jk_ajp_common.c (1259): 00f06D 20 74 65 73 74 69 6E 63 6C 75 64 65 31 20 50 - m.testinclude1.P [Thu Sep 10 14:46:47 2009][5024:2952] [debug] jk_ajp_common.c (1259): 010061 67 65 0D 0A 48 65 6C 6C 6F 6F 6F 6F 6F 20 66 - age..Hello.f [Thu Sep 10 14:46:47 2009][5024:2952] [debug] jk_ajp_common.c (1259): 011072 6F 6D 20 74 65 73 74 69 6E 63 6C 75 64 65 31 - rom.testinclude1 - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: bypassing a servlet mapping to /*
Leon Rosenberg wrote: and if i use mapping with asterisk (/net/java/dev/moskito/webui/jsp/*) , i see log errors from dispatcher servlet that it doesn't know how to map /net/java/dev/moskito/webui/jsp/Producer.jsp. Yep (from a dummie) : does that not indeed look like the dispatcher thingie you're using does not know how to map wildcards ? - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Need Help - Mod_jk/Apache - Mutiple Content issue
No I explicitly made it to loop so that I can write a content for a time longer than the reply_timout setting to simulate and look at the behaviour. Regards, Bala -Original Message- From: André Warnier [mailto:a...@ice-sa.com] Sent: Thursday, September 10, 2009 6:54 PM To: Tomcat Users List Subject: Re: Need Help - Mod_jk/Apache - Mutiple Content issue balakarthik.baska...@wipro.com wrote: ... Just jumping in here, but doesn't that request to /test/test.jsp appear to be looping ? or is that by design ? ReplyTimeout_Analysis.txt : [Thu Sep 10 14:46:47 2009][5024:2952] [debug] jk_ajp_common.c (1259): 00f06D 20 74 65 73 74 69 6E 63 6C 75 64 65 31 20 50 - m.testinclude1.P [Thu Sep 10 14:46:47 2009][5024:2952] [debug] jk_ajp_common.c (1259): 010061 67 65 0D 0A 48 65 6C 6C 6F 6F 6F 6F 6F 20 66 - age..Hello.f [Thu Sep 10 14:46:47 2009][5024:2952] [debug] jk_ajp_common.c (1259): 011072 6F 6D 20 74 65 73 74 69 6E 63 6C 75 64 65 31 - rom.testinclude1 - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Need Help - Mod_jk/Apache - Mutiple Content issue
balakarthik.baska...@wipro.com wrote: No I explicitly made it to loop so that I can write a content for a time longer than the reply_timout setting to simulate and look at the behaviour. Ok, but does a reply timeout really apply in that case ? I would intuitively think that a reply timeout would be irrelevant as soon as the first byte of the reply arrives. How long the response is after that, should not matter. No ? As I mentioned, I was just jumping in in the middle. Disregard my comments if they are not relevant. I was just looking at the logs and trying to figure out what the problem is. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: bypassing a servlet mapping to /*
From: André Warnier [mailto:a...@ice-sa.com] Subject: Re: bypassing a servlet mapping to /* Yep (from a dummie) : does that not indeed look like the dispatcher thingie you're using does not know how to map wildcards ? Indeed it does. But my understanding of the dispatcher is that it should be using the mappings in web.xml, which certainly appear to cover the case of interest. - 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
RE: Need Help - Mod_jk/Apache - Mutiple Content issue
Yes you are right.I think I didn't mention it clearly.I am having this while loop for writing a huge chunk of data followed by a thread that sleeps for some time and that is where I am expecting my reply_timeout to be timed out and the data written till the sleep of the thread is seen in the browser and the log file. Regards, Bala -Original Message- From: André Warnier [mailto:a...@ice-sa.com] Sent: Thursday, September 10, 2009 7:06 PM To: Tomcat Users List Subject: Re: Need Help - Mod_jk/Apache - Mutiple Content issue balakarthik.baska...@wipro.com wrote: No I explicitly made it to loop so that I can write a content for a time longer than the reply_timout setting to simulate and look at the behaviour. Ok, but does a reply timeout really apply in that case ? I would intuitively think that a reply timeout would be irrelevant as soon as the first byte of the reply arrives. How long the response is after that, should not matter. No ? As I mentioned, I was just jumping in in the middle. Disregard my comments if they are not relevant. I was just looking at the logs and trying to figure out what the problem is. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Need Help - Mod_jk/Apache - Mutiple Content issue
balakarthik.baska...@wipro.com wrote: Yes you are right.I think I didn't mention it clearly.I am having this while loop for writing a huge chunk of data followed by a thread that sleeps for some time and that is where I am expecting my reply_timeout to be timed out and the data written till the sleep of the thread is seen in the browser and the log file. Ok, now I do understand better, I think. There is a request. The Tomcat app starts answering (a long chunk of data), then crashes. This is simulated by your test script, which sends a long chunk of data, then sleeps (to simulate a crash). Eventually, some timeout occurs, which (may) cause another element to consider this Tomcat unresponsive, and switch the request to another one. This other one then restarts the request from the beginning. The final result being that the requesting browser first received an incomplete chunk of data from the first webapp, and now starts receiving the same data (again) from another webapp. Again intuitively, I don't know how any server-side scheme is going to solve that. When the first webapp starts answering, that Tomcat has to start sending the answer back to the client. If it then crashes, it is too late to call it back; the data is already on the wire to the client. It would be in my view the client's responsibility to ensure that it discards any incomplete data received. But I don't know of any browser for instance, which does that. They all start to try to display the data as soon as they have the beginning of it. I think that if you really need this, then you would have to insert some other item between Tomcat and the client, which acts as a proxy, and only starts sending the response to the client when it is sure that it has received and buffered a complete response from the server. But then, this item becomes the weak link. It could also crash.. Or else you need an applet at the client side, which does the same thing. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Tomcat 6 Clustering with session replication problem
Hello
I'm trying to set up a session replciation between my tomcat hosts.
I have to use the static method to describe the member of the cluster.
I had the same error that this thread:
http://www.opensubscriber.com/message/users@tomcat.apache.org/9810630.html
I tried to modify my configuration, each node add the other in the startup
sequence but after that I don't see nothing on the logs and it doesn't seem
that the session are shared when I connect to one server with my web
browser.
This is my configuration:
(on serv-1 for exemple)
Engine name=Catalina defaultHost=localhost jvmRoute=serv2
Cluster className=org.apache.catalina.ha.tcp.SimpleTcpCluster
channelSendOptions=8
Manager
className=org.apache.catalina.ha.session.DeltaManager
expireSessionsOnShutdown=false
notifyListenersOnReplication=true/
Channel
className=org.apache.catalina.tribes.group.GroupChannel
Membership
className=org.apache.catalina.tribes.membership.McastService
address=228.0.0.4
port=45564
frequency=500
dropTime=3000/
Receiver
className=org.apache.catalina.tribes.transport.nio.NioReceiver
address=ip-serv-2
port=4000
autoBind=100
selectorTimeout=5000
maxThreads=6/
Sender
className=org.apache.catalina.tribes.transport.ReplicationTransmitter
Transport
className=org.apache.catalina.tribes.transport.nio.PooledParallelSender/
/Sender
Interceptor
className=org.apache.catalina.tribes.group.interceptors.TcpPingInterceptor
staticOnly=true/
Interceptor
className=org.apache.catalina.tribes.group.interceptors.TcpFailureDetector/
Interceptor
className=org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor
Member
className=org.apache.catalina.tribes.membership.StaticMember
port=4000
host=serv1
uniqueId={10,1,0,113,0,0,0,0,0,0,0,0,0,0,0,0}/
Member
className=org.apache.catalina.tribes.membership.StaticMember
port=4000
host=serv2
uniqueId={10,1,0,115,0,0,0,0,0,0,0,0,0,0,0,0}/
/Interceptor
/Channel
Valve
className=org.apache.catalina.ha.tcp.ReplicationValve
filter=.*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;/
Valve
className=org.apache.catalina.ha.session.JvmRouteBinderValve/
ClusterListener
className=org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener/
ClusterListener
className=org.apache.catalina.ha.session.ClusterSessionListener/
/Cluster
Realm className=org.apache.catalina.realm.UserDatabaseRealm
resourceName=UserDatabase /
Host name=localhost appBase=/data/gtube-files/webapps/
unpackWARs=true autoDeploy=true
xmlValidation=false xmlNamespaceAware=false
Aliasserv.domain.com/Alias
Context path=/ distributable=true docBase=platform debug=5
reloadable=true crossContext=true
/Context
/Host
/Engine
This is what my logs look like:
Sep 10, 2009 5:03:19 PM org.apache.tomcat.util.digester.SetPropertiesRule
begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting
property 'debug' to '5' did not find a matching property.
Sep 10, 2009 5:03:19 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-localhost%2F127.0.0.1-8080
Sep 10, 2009 5:03:19 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 301 ms
Sep 10, 2009 5:03:19 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Sep 10, 2009 5:03:19 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.18
Sep 10, 2009 5:03:19 PM org.apache.catalina.ha.tcp.SimpleTcpCluster start
INFO: Cluster is about to start
Sep 10, 2009 5:03:19 PM org.apache.catalina.tribes.transport.ReceiverBase
bind
INFO: Receiver Server Socket bound to:/serv-1:4000
Sep 10, 2009 5:03:19 PM
org.apache.catalina.tribes.membership.McastServiceImpl setupSocket
INFO: Setting cluster mcast soTimeout to 500
Sep 10, 2009 5:03:19 PM org.apache.catalina.ha.tcp.SimpleTcpCluster
memberAdded
INFO: Replication member
added:org.apache.catalina.tribes.membership.MemberImpl[tcp://serv-1:4000,serv-1,4000,
alive=0,id={10 1 0 113 0 0 0 0 0 0 0 0 0 0 0
Re: mod_jk fails to forward request on high traffic
Thanks guys, that seems to solve the problem. I also tried Mark's DisableReuse and it works fine, but I reverted since the timeouts solution works well and looks better. Another resource I used to get a better understanding of the issue was http://kbase.redhat.com/faq/docs/DOC-15866 Thanks again Ioannis André Warnier wrote: John Cherouvim wrote: ... Is there a possibility that there is a problem with the fact that I use: IfModule mpm_prefork_module ... ServerLimit1024 MaxClients 1024 and default Connector settings? Connector port=8010 protocol=AJP/1.3 redirectPort=8443 address=127.0.0.1 / Do those 2 need to have the same thread count (MaxClients=maxThreads)? I think you're on the right track there. See the previous response from Mark : ... My guess is that all of your Tomcat AJP threads are tied up with idle httpd threads. .. doing nothing. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Ioannis Cherouvim Software Engineer mail: j...@eworx.gr web: www.eworx.gr - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: An unexpected error has been detected by Java Runtime Environment:
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tsirkin, On 9/5/2009 2:59 PM, Tsirkin Evgeny wrote: So,it could be this since this sparc/solaris. Anyway it seems i can't do anything about it. I would ask your hardware vendor to replace either the memory or the entire machine. Another question is : Now i have one server running 32 java and another 64 ,would it be a problem in cluster? As long as you are using an all-Java solution (and not some weird binary clustering layer), it shouldn't be a problem: Java primitives are defined independently of architecture and even JVM. If a 2-bit JVM existed (you might call MS's JVM a 2-bit one ha ha), you should be able to interoperate with it. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqpMMEACgkQ9CaO5/Lv0PAEzwCcCl9It/YXRLfHevUaXMuMdz6p WqMAnjh06wPXMVDsTA1HnRL21Osr9vIB =Ptj1 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Query on Tomcat Server.xml
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bhuvanesh, On 9/7/2009 12:00 AM, Pattanashetti wrote: I wanted to create connector using tomcat Apis. Connector conn = new Connector(); conn.setPort(8070); service.addConnector(conn); This above code is working fine. I m able to access the appication with this connector port (8070). *But i wanted to configure the Https port in the same manner. * Connector class does not have* setKeyStoreFile* of *setKeyStorePassword*method. I tried with connector.setAttribute(keystoreFile, filePath); But this is not working. :( Is there any specific way to for creating https connector using tomcat APIs? I'm not going to read the APIs for you, you can read them yourself: http://tomcat.apache.org/tomcat-6.0-doc/api/index.html Specifically, I would look at the packages org.apache.catalina.connector and org.apache.coyote.http11. It would also help to look at the code Tomcat uses to build its own connector objects in the org/apache/catalina/startup/Catalina.java and org/apache/catalina/startup/ConnectorCreateRule.java files. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqpMrYACgkQ9CaO5/Lv0PC/pwCdEqd/onAuTnLKGnFjJQ9xi9yZ 5cMAoIG57tFJiGK//QOKXW6bpxnwBRde =GuTF -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: mod jk - multiple applications, different server clusers, sticky sessions
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Rainer, On 9/7/2009 6:05 AM, Rainer Jung wrote: The code of mod_jk (1.2.28) looks for a URL encoded session id (and uses that one if it finds one) and otherwise it takes all cookie session ids it can find in the order of Cookie headers in the request. It then uses all the session ids in this order and searches for a usable worker (e.g. existing and not being in error or stopped) until it finds one or runs out of session ids. Okay, so if you were foolish enough to have nested webapp paths, then you'd be okay as long as the worker names didn't conflict, right? That might mean you'd need different Connectors in order to satisfy your nested-url-space requirement, but at least the behavior would be predictable. Thanks, - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqpMzoACgkQ9CaO5/Lv0PBGRwCgtuOqeUYtM5v6k0JTbcw55pY9 Wq0AnjhRVt9s4Easg+e42a9TL66uFGYC =Z8eI -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Need Help - Mod_jk/Apache - Mutiple Content issue
On 10.09.2009 14:46, balakarthik.baska...@wipro.com wrote: Hi Rainer, I did tried with a lot of combinations for the settings and can see that when recovery_options is set,no multiple content is seen and partial content is seen followed by an OK message when a huge chunk of data is written. However,the failover case didn't at all work out when the recovery_options is set.Pfa a doc with the scenarios that I tested and the results that I am seeing. However,in our prod envt,we currently have the reply_timeout and the recovery_options setting available and we have reomoved the socket_timeout.The recent behaviour that we are observing is,unlike the duplicate content with the header that we saw earlier with socket_timeout,we are seeing some of the content in the middle of the response being duplicated. We are making use of dynamic includes of the jsp files (with ATG dsp tags) and when I tried having the same in my local setup,I could see the response being written into the socket once the jsp completes.But not able to replicate a scenario of recreating multiple content from the middle of the page/content served by a fragment that is included. Pfa a file with the behaviour that I am noticing from the access and jk log files.For the test app,I could see only one GET request and a corresponding response in the jk log with the response time.I included one image and I can see a corresponding entry for the image as well in both files.However,there are no entries seen for the included jsp files. I am attaching the log entries from our prod envt as well which I took when I was able to see a timeout reply in the jk file.However,from the access log I couldn't interpret a corresponding entry/behaviour.Could you pl help on how the multiple content could have been occuring in the middle and your insights from the log files? (Also,pl note that we have currenlty turned off akamai in prod and the timeout is seen without akamai as well) Let's start in the right way, first fix the configuration, then do and analyze the tests, maybe resulting in more config optimization. Please post your config. I had a quick look at the files you attached, but it looks very much like we first need to improve the config, before analyzing behaviour, that will likely not appear with the right config. Also,reg your explanation about akamai,I can contact akamai to find out if they can handle the prematurely closed data differently.Do you remember any setting to the browser to interpret this invalid data based on content length/premature closure?(just for testing though wouldn't apply to real life scenario) No there is no such browser setting that I'm aware of. But akamai is not a browser, its a server that behaves more like a cache. So they need to solve a server problem, not an end user problem. They should immediately invalidate content, that was delivered over a connection that had a protocol abort. Thanks much for your help.I can give you a call if you would like to discuss this over phone. Lets first check the config, maybe then everything will be fine ;) Regards, Rainer - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: avoiding ssl vulnerabilities in tomcat
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Sunil, On 9/7/2009 10:18 AM, sunil chandran wrote: Hello all, As per the suggestion from tomcat forum users,I went ahead and installed tomcat4.1.40 Then i copied the original webapps file from the back up tomcat (old version). I tried to start the server. It shows this error Sep 7, 2009 10:13:11 PM org.apache.coyote.http11.Http11BaseProtocol initINFO: Initializing Coyote HTTP/1.1 on http-8080Sep 7, 2009 10:13:12 PM org.apache.coyote.http11.Http11BaseProtocol initINFO: Initializing Coyote HTTP/1.1 on http-8443Starting service Tomcat-StandaloneApache Tomcat/4.1.40Catalina.start: LifecycleException: Context startup failed due to previous errorsStopping service Tomcat-StandaloneCatalina.stop: LifecycleException: Coyote connector has not been startedLifecycleException: Coyote connector has not been started Care to post the error messages from the other log file(s)? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqpM4kACgkQ9CaO5/Lv0PA4zQCfWSzGqfgBKUkMamg597bYZMoq GxEAnibTiLlMo0SPhWm3YS6Mpp/EHsAo =Z5Iv -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Database Connection Pooling initialization with dbcp
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chris, On 9/9/2009 12:01 PM, Chris Wiley wrote: My question is this: Am I to assume that I need to OPEN and CLOSE x number of connections in the init section of the servlet to load the pool with live connections? No, this can be done with configuration. Unless you have changed your config, Tomcat uses commons-dbcp whose configuration reference can be found here: http://commons.apache.org/dbcp/configuration.html I think you want to take a look at the initialSize and minIdle parameters. Is there any reason why you absolutely need those connections to all be available right away? Laziness can sometimes be beneficial... :) - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqpNdkACgkQ9CaO5/Lv0PAZQACeMOlUmLcr/9eTfUTxeNuv1mpu 0pkAoLg8687dcxFcYa/Ki1aeApv8xELL =WerZ -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Database Connection Pooling initialization with dbcp
Chris, I think I am looking at it the wrong way. I have been looking at it as a collection of static connections that are managed. i.e., putting 8 connections in an array or hashtable and grabbing them when needed and letting something check them every so often to keep them refreshed. Earlier in the post, Ziggy suggested that the pooling mechanism is a dynamic caching system; and looking at it as a caching system is starting to make more sense to me. The api makes more sense from this perspective. where it just keeps x number of connections around at any given point in time. I don't have to have connections from the get go, but it would be nice. That means the first person to hit the app has to take the hit on the creation of the first connection or two. Which, I suppose isn't bad. As far as the initialSize parameter, do I just append those to the datasource under the Resource element in the web.xml? and will that actually create some initial connections in the pool? Do I need to set up init-params and get them that way? The thing about the configuration reference is that I could not really tell where in the config to put those various elements, maybe it doesn't matter. -Chris -Original Message- From: Christopher Schultz [mailto:ch...@christopherschultz.net] Sent: Thursday, September 10, 2009 12:23 PM To: Tomcat Users List Cc: chriswile...@gmail.com Subject: Re: Database Connection Pooling initialization with dbcp -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chris, On 9/9/2009 12:01 PM, Chris Wiley wrote: My question is this: Am I to assume that I need to OPEN and CLOSE x number of connections in the init section of the servlet to load the pool with live connections? No, this can be done with configuration. Unless you have changed your config, Tomcat uses commons-dbcp whose configuration reference can be found here: http://commons.apache.org/dbcp/configuration.html I think you want to take a look at the initialSize and minIdle parameters. Is there any reason why you absolutely need those connections to all be available right away? Laziness can sometimes be beneficial... :) - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqpNdkACgkQ9CaO5/Lv0PAZQACeMOlUmLcr/9eTfUTxeNuv1mpu 0pkAoLg8687dcxFcYa/Ki1aeApv8xELL =WerZ -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: Database Connection Pooling initialization with dbcp
From: Chris Wiley [mailto:cwile...@comcast.net] Subject: RE: Database Connection Pooling initialization with dbcp As far as the initialSize parameter, do I just append those to the datasource under the Resource element in the web.xml? Set the values as additional attributes in the Resource element. E.g., Resource name=jdbc/TestDB auth=Container type=javax.sql.DataSource initialSize=10 maxActive=100 maxIdle=30 minIdle=10 maxWait=1 username=javauser password=javadude driverClassName=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/javatest?autoReconnect=true/ will that actually create some initial connections in the pool? It's broken if it doesn't. You probably also want to specify validationQuery and testOnBorrow, in case the DB (or intervening firewall) drops connections on you. - 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
Re: 100% usage and hanging on startup of Spring/Hibernate app in Tomcat 5.5 on Ubuntu 7
I've tried each of the aforementioned GC options individually with the following other parameters: JAVA_OPTS=GC Param -Xms368m -Xmx512m -XX:MaxPermSize=128m -XX:+PrintGC -XX:+PrintGCDetails -Djava.awt.headless=true -Dfile.encoding=UTF-8 The *only option* that did not cause the startup process to halt indefinitely on startup was the Serial GC option. I tried this one on 4 or 5 successive attempts and the server started up in under 30s. The others halted indefinitely (i.e. at least 5-10m before I finally killed the process) during GC as an incomplete GC log statement was the last thing in the catalina.out file. - Does this indicate some kind of threading problem in this Java env? - Does the option DoEscapeAnalysis still use a parallel gc? - Is the experimental more similar to the parallel or the serial? Thanks, Bradley On Thu, Sep 3, 2009 at 4:24 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Bradley Wagner [mailto:bradley.wag...@hannonhill.com] Subject: Re: 100% usage and hanging on startup of Spring/Hibernate app in Tomcat 5.5 on Ubuntu 7 And again in a new place on subsequent attempt. There's nothing unusual that I can see in the traces, so it looks like you will have to try random GC settings until something works (as Mark suggested some time ago). Try turning these tags on, one at a time: -XX:+UseParallelGC -XX:+UseParallelOldGC -XX:+UseSerialGC -XX:+DoEscapeAnalysis -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC The last one is somewhat experimental, as the parameter implies. - 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
RE: 100% usage and hanging on startup of Spring/Hibernate app in Tomcat 5.5 on Ubuntu 7
From: Bradley Wagner [mailto:bradley.wag...@hannonhill.com] Subject: Re: 100% usage and hanging on startup of Spring/Hibernate app in Tomcat 5.5 on Ubuntu 7 The *only option* that did not cause the startup process to halt indefinitely on startup was the Serial GC option. This is really weird. Might be time to file a bug report with Sun. - Does this indicate some kind of threading problem in this Java env? Hard to tell without a snapshot of what's going on inside the GC code (which is all C++, not Java). Could also be a problem with Ubuntu. - Does the option DoEscapeAnalysis still use a parallel gc? Should be independent of the GC algorithm; it's extra logic in the JIT that determines whether or not an object even needs to be allocated, or if it can simply reside on the method's stack. - Is the experimental more similar to the parallel or the serial? My understanding is that G1GC is both parallel and concurrent. - 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
Re: 100% usage and hanging on startup of Spring/Hibernate app in Tomcat 5.5 on Ubuntu 7
A couple of other findings: - Tomcat 5.5.28 out-of-the-box with its default webapps has no problem starting with the default (parallel) gc - As soon as I remove the default webapps, add ours, and modify the context.xml file to provide it a DataSource, Tomcat hangs. We're definitely loading a lot more into memory and inducing garbage collection with Hibernate and Spring in the mix. I think I'm going to try a Hibernate or Spring sample webapp to see if it has similar problems. On Thu, Sep 10, 2009 at 4:43 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Bradley Wagner [mailto:bradley.wag...@hannonhill.com] Subject: Re: 100% usage and hanging on startup of Spring/Hibernate app in Tomcat 5.5 on Ubuntu 7 The *only option* that did not cause the startup process to halt indefinitely on startup was the Serial GC option. This is really weird. Might be time to file a bug report with Sun. - Does this indicate some kind of threading problem in this Java env? Hard to tell without a snapshot of what's going on inside the GC code (which is all C++, not Java). Could also be a problem with Ubuntu. - Does the option DoEscapeAnalysis still use a parallel gc? Should be independent of the GC algorithm; it's extra logic in the JIT that determines whether or not an object even needs to be allocated, or if it can simply reside on the method's stack. - Is the experimental more similar to the parallel or the serial? My understanding is that G1GC is both parallel and concurrent. - 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
Shared jars
I'm trying to enable the shared classloader on Tomcat 6.0.20 (Java 1.6.0_15
on Mac OSX 10.6). I've put this line in conf/catalina.properties:
shared.loader=${catalina.base}/shared/classes,${catalina.base}/shared/lib/*.jar
I've dumped a few dozen jars in the shared/lib directory. These are found
when I start Tomcat, but the jars in a deployed WAR are not found. The
problem manifests itself as a ClassNotFoundException on on
org.hibernate.SessionFactory, which is located in the web app's WEB-INF/lib
directory, and not the shared/lib directory. As a test, I added the web
app's lib dir to the shared loader, like this:
shared.loader=${catalina.base}/shared/classes,${catalina.base}/shared/lib/*.jar,${catalina.base}/webapps/WorkList/WEB-INF/lib/*.jar
That's obviously bad as an actual fix, but the app loads in that
configuration. Any ideas? What I'd like is the shared class loader as a
supplement to the webapp classloader.
Many thanks for your help!
Tim Berglund
