Re: enabling/disabling a servlet filter conditionally
Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 André, André Warnier wrote: | Can one dynamically disable a servlet filter under some conditions, from | within another preceding filter ? | | In other words, suppose I have a servlet configured approximately like | this : [snip] | And suppose that I control the code of filter A but have no access to | the code of filter B, and filter B has no parameter allowing to make it | conditional. Do you have the ability to alter the configuration? I have another idea... Yes, I have. And I'm interested, though I have to tell you, my knowledge in these matters is limited. Take Filter B completely out of the configuration for the webapp and install Filter D in its place. Filter D is a newly-written filter you write that does nothing but dispatch to a private instance of Filter B after checking the appropriate conditional that you set up (and probably note in the request attributes). If you want, you can fake the FilterChain object so that doFilter does nothing and then do the dispatch back to the FilterChain after FilterB.doFilter returns, or you can just let FilterB.doFilter call back into the filter chain itself. I think that should work. This strategy allows you to accomplish your goal with a minimum of effort. That last bit is what I'm intested in. :-) To talk in concrete terms, this here is filter B : http://jcifs.samba.org/src/docs/ntlmhttpauth.html So, it's not that I have no access to the code, it is that I don't want to mess with the code, as I'm not smart enough to do that. After filter B, I have my own filter C, which must remain in place. The reason of it all is : The JCIFS filter enforces Windows Domain NTLM authentication on the callers, and then sets the Tomcat user-id accordingly for the request. That's fine if the callers all are prepared to do NTLM authentication, but in this case I have a situation where some callers can, some others can't. (See for example : http://jcifs.samba.org/src/docs/ntlmhttpauth.html#transparent) However, JCIFS does not give a choice. If it is in the filter chain, it forces NTLM authentication on the browser, and a browser that can't gets stuck in an endless loop of browser login popups. It would be easiest if I could ask the JCIFS developers to add to JCIFS a test on some request attribute, and maybe just let the request through if this attribute is set. But I feel a bit shy about asking them that, and I don't know if this would open some enormous security hole or so. So instead, I want to check, when the request comes in, if it has an NTLM Authorization: header. If it has, I want to let JCIFS do it's stuff. If it hasn't, I want to bypass JCIFS, and set some flag. My filter C runs after JCIFS. Its role is (right now) to pick up the Tomcat user-id (as set by JCIFS), and add it to the request as a HTTP header with the user-id, because that is what, finally, the application behind the servlet (which I do not control either) expects. Thus what my (new) filter A should do is check the request, and depending on some condition either run (or let run) the JCIFS filter, or else set a request attribute, which will allow filter C later to decide to either get the authenticated user-id from Tomcat (as set by JCIFS), or set it by default to anonymous (if JCIFS did not run). The only servlet filter I have written so far is filter C. In order to do that, I had to wrap the request by subclassing HttpServletRequestWrapper, and pass a modified request to the servlet. That I know how to do, and that is about the state of my knowledge on Java servlets and servlet filters. So, to get back to the problem at hand, where do I start ? Or, considering my limited knowledge, do you think this is beyond what I can reasonably undertake ? One concern I have with the scheme you outline above, is that JCIFS expects a lot of configuration parameters, normally in the web.xml. If I make it into a private instance, how do I set up things so that it still finds these parameters ? And thank you very much for the interest. André - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Would like to monitor memory use offline
Richard S. Huntrods wrote: SO - my question - is there a relatively easy way to create something (say a servlet) to watch the stack *just like I can do manually using the manager application* but email me when the stack approaches the memory limits? Richard, Tomcat is open source so if you want to copy something Tomcat is doing all you need to do is look at the Tomcat source and copy it. Granted it can be a bit impenetrable in places but I don't think this is one of them. 1. You know from the manager page what URL you are interested in. 2. The web.xml for the manager app will tell you which servlet is serving that URL. 3. The Tomcat 6 source is in a single tree under http://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk/java/ so finding the class is easy. 4. A quick look at the doGet() method in that class points you towards StatusTransformer.writeVMState() 5. And there you have your answer - a simple API call. http://java.sun.com/javase/6/docs/api/java/lang/Runtime.html#freeMemory() For the e-mail side, take a look at the JavaMail example in the JNDI docs. http://tomcat.apache.org/tomcat-6.0-doc/jndi-resources-howto.html Mark - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat 6 fail to detect a matching certificate and stuck in an infinite loop
Assaf Vizner wrote: Hi I have a .keystore file which doesn't matches the SSL definitions in the server.xml. tomcat 4 handled it well - it was unable to connect to it but the logs showed a friendly messages and the server continue working fine. However in tomcat 6 when I configured the connectors in the server.xml with default settings or as org.apache.coyote.http11.Http11Protocol And I started the service the tomcat get in an infinite loop which holds the CPU in 90% and keep writing to catalina log the following error: 03/08/2008 11:09:37 org.apache.tomcat.util.net.JIoEndpoint$Acceptor run SEVERE: Socket accept failed java.net.SocketException: SSL handshake errorjavax.net.ssl.SSLException: No available certificate or key corresponds to the SSL cipher suites which are enabled. at org.apache.tomcat.util.net.jsse.JSSESocketFactory.acceptSocket(JSSESocke tFactory.java:150) at org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:310 ) at java.lang.Thread.run(Thread.java:619) 03/08/2008 11:09:37 org.apache.tomcat.util.net.JIoEndpoint$Acceptor run When I configure the connectors to work with org.apache.coyote.http11.Http11NioProtocol the problem seems to disappear Any ideas? That looks like a bug. Add it to Bugzilla so it doesn't get lost and someone will take a look. It is probably a simple fix so you could probably do this yourself. Just ask if you need help building TC6 from source or figuring out where the root cause is. Mark - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Creating a new Service
Hi and Welcome to the list. I can't answer your questions below, but since you are new to the list, allow me to make a couple of predictions : The first thing you are going to be asked is under which OS you are running this, and from where you downloaded and installed Tomcat 5.5. So you might as well add that information right away. The second thing likely to happen, is that someone will tell you to get rid of that Tomcat, and re-install one from the original Tomcat distribution. That sounds hard, but it is to some extent understandable, since each distribution seems to put stuff in different places, and that makes it harder for people here to provide useful answers (and particularly for your type of configuration question). Now, don't get discouraged and hang on there. Usually, after this initial stage, the answers are good and people here know their stuff and are genuinely helpful. And also, because you say that you have already been playing around with the configuration and are getting all kinds of errors as a result, you might anyway want to de-install your now messed-up tomcat-webapps and tomcat packages, re-install a clean tomcat package (without the webapps), and start from there. André ;-) Robert Drescher wrote: Hello everyone in this list! This is my first post in the users-help, after successfully installing Tomcat5.5 The default applications are running (in the /usr/share/tomcat5.5-webapps folder), but for testing my application, I'd like to move mine to a different location in the filesystem. Am I right in my assumption that for this, I will need to create a new service in the server.xml, apart from Catalina? My structure would look like this: /usr/share/myapp/ -- my applications root, the equivalent to /usr/share/tomcat5.5-webapps /usr/share/myapp/webapp -- my applications webapp, the equivalent to /usr/share/tomcat5.5-webapps/ROOT in the end, i'd like requests going to http://localhost:1234 being mapped to /usr/share/myapp/webapp, the same as requests going to http://localhost:8180being now mapped to /usr/share/tomcat5.5-webapps/ROOT Which configurations do I have to change? I've ben messing around with the server.xml and the configurations of my webapp for some time, with the result of getting return code 400 Also, as soon as this is working, can I just remove the definition of catalina from the server.xml to deactivate all the standard applications? I'd be very happy to recieve some advice on this and maybe even example configuration files *wink* Robert - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Would like to monitor memory use offline
On Sat, 2008-08-02 at 19:18 -0700, Richard S. Huntrods wrote: SO - my question - is there a relatively easy way to create something (say a servlet) to watch the stack *just like I can do manually using the manager application* but email me when the stack approaches the memory limits? Hi Richard, I'd suggest running the tomcat JVM with verbose garbage collection enabled eg. [1], then monitoring the log produced with a shell script. This should show you when you are nearing your out of memory limit. To track down the memory leak, try something like Lambda Probe [2] to give you an overview of resource consumption and monitor it over time. Cheers, Ben [1] -XX:+PrintGCTimeStamps -Xloggc:/var/log/java/gc.log -verbosegc -XX:+PrintGCDetails [2] http://www.lambdaprobe.org/d/index.htm - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat 6 fail to detect a matching certificate and stuck in an infinite loop
Hi I have a .keystore file which doesn't matches the SSL definitions in the server.xml. tomcat 4 handled it well - it was unable to connect to it but the logs showed a friendly messages and the server continue working fine. However in tomcat 6 when I configured the connectors in the server.xml with default settings or as org.apache.coyote.http11.Http11Protocol And I started the service the tomcat get in an infinite loop which holds the CPU in 90% and keep writing to catalina log the following error: 03/08/2008 11:09:37 org.apache.tomcat.util.net.JIoEndpoint$Acceptor run SEVERE: Socket accept failed java.net.SocketException: SSL handshake errorjavax.net.ssl.SSLException: No available certificate or key corresponds to the SSL cipher suites which are enabled. at org.apache.tomcat.util.net.jsse.JSSESocketFactory.acceptSocket(JSSESocke tFactory.java:150) at org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:310 ) at java.lang.Thread.run(Thread.java:619) 03/08/2008 11:09:37 org.apache.tomcat.util.net.JIoEndpoint$Acceptor run When I configure the connectors to work with org.apache.coyote.http11.Http11NioProtocol the problem seems to disappear Any ideas? Thanks Assaf Vizner NextNine.LTD 4 Ha-Nechoshet Tel-Aviv 69710 Israel E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Tel: +972(3)7673012 Mobile: +972(528)466746 Fax: +972(3)6497810
Creating a new Service
Hello everyone in this list! This is my first post in the users-help, after successfully installing Tomcat5.5 The default applications are running (in the /usr/share/tomcat5.5-webapps folder), but for testing my application, I'd like to move mine to a different location in the filesystem. Am I right in my assumption that for this, I will need to create a new service in the server.xml, apart from Catalina? My structure would look like this: /usr/share/myapp/ -- my applications root, the equivalent to /usr/share/tomcat5.5-webapps /usr/share/myapp/webapp -- my applications webapp, the equivalent to /usr/share/tomcat5.5-webapps/ROOT in the end, i'd like requests going to http://localhost:1234 being mapped to /usr/share/myapp/webapp, the same as requests going to http://localhost:8180being now mapped to /usr/share/tomcat5.5-webapps/ROOT Which configurations do I have to change? I've ben messing around with the server.xml and the configurations of my webapp for some time, with the result of getting return code 400 Also, as soon as this is working, can I just remove the definition of catalina from the server.xml to deactivate all the standard applications? I'd be very happy to recieve some advice on this and maybe even example configuration files *wink* Robert
RE: Creating a new Service
hello Robert- first looking at your present folder layout Not under tomcats control.. /usr/share/myapp/ Not under tomcats control.. /usr/share/myapp/webapp I would suggest reading how to configure your tomcat engine at /conf/server.xml http://tomcat.apache.org/tomcat-5.5-doc/virtual-hosting-howto.html Host name=localhost appBase=webapps unpackWARs=true autoDeploy=true xmlValidation=true xmlNamespaceAware=true wgere the structure for your ROOT folder would look like $CATALINA_HOME/appBase/ROOT and the root.war would deploy to $CATALINA_HOME/appBase/ROOT.war the mapping would be path - The context path (including the leading slash) of the web application you are dealing with. To select the ROOT web application, specify /. I agree with Andre that a fresh install would solve most of these misconfiguration errors you are now seeing HTH Martin __ Disclaimer and confidentiality note Everything in this e-mail and any attachments relates to the official business of Sender. This transmission is of a confidential nature and Sender does not endorse distribution to any party other than intended recipient. Sender does not necessarily endorse content contained within this transmission. Date: Sun, 3 Aug 2008 12:53:15 +0200 From: [EMAIL PROTECTED] To: users@tomcat.apache.org Subject: Re: Creating a new Service Hi and Welcome to the list. I can't answer your questions below, but since you are new to the list, allow me to make a couple of predictions : The first thing you are going to be asked is under which OS you are running this, and from where you downloaded and installed Tomcat 5.5. So you might as well add that information right away. The second thing likely to happen, is that someone will tell you to get rid of that Tomcat, and re-install one from the original Tomcat distribution. That sounds hard, but it is to some extent understandable, since each distribution seems to put stuff in different places, and that makes it harder for people here to provide useful answers (and particularly for your type of configuration question). Now, don't get discouraged and hang on there. Usually, after this initial stage, the answers are good and people here know their stuff and are genuinely helpful. And also, because you say that you have already been playing around with the configuration and are getting all kinds of errors as a result, you might anyway want to de-install your now messed-up tomcat-webapps and tomcat packages, re-install a clean tomcat package (without the webapps), and start from there. André ;-) Robert Drescher wrote: Hello everyone in this list! This is my first post in the users-help, after successfully installing Tomcat5.5 The default applications are running (in the /usr/share/tomcat5.5-webapps folder), but for testing my application, I'd like to move mine to a different location in the filesystem. Am I right in my assumption that for this, I will need to create a new service in the server.xml, apart from Catalina? My structure would look like this: /usr/share/myapp/ -- my applications root, the equivalent to /usr/share/tomcat5.5-webapps /usr/share/myapp/webapp -- my applications webapp, the equivalent to /usr/share/tomcat5.5-webapps/ROOT in the end, i'd like requests going to http://localhost:1234 being mapped to /usr/share/myapp/webapp, the same as requests going to http://localhost:8180being now mapped to /usr/share/tomcat5.5-webapps/ROOT Which configurations do I have to change? I've ben messing around with the server.xml and the configurations of my webapp for some time, with the result of getting return code 400 Also, as soon as this is working, can I just remove the definition of catalina from the server.xml to deactivate all the standard applications? I'd be very happy to recieve some advice on this and maybe even example configuration files *wink* Robert - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ Reveal your inner athlete and share it with friends on Windows Live. http://revealyourinnerathlete.windowslive.com?locale=en-usocid=TXT_TAGLM_WLYIA_whichathlete_us
configure tomcat
I am a newbie to tomcat. I installed it ubuntu added the following line to bashrc file export CLASSPATH=/usr/local/tomcat/common/lib/jsp-api.jar:/usr/local/tomcat/common/lib/servlet-api.jar When I run startup.sh it runs ok. Giving this message Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-6-sun But when I type localhost/8080 it says can't connect. What is the problem. Please help. I thank you in advance.
Re: configure tomcat
Make sure none of the ports specified in conf/server.xml are being used. You can check this by running netstat -na | grep port if nothing comes up then the port is free. -- Signed, Alessandro Ferrucci On Sun, Aug 3, 2008 at 10:07 AM, Nadun Herath [EMAIL PROTECTED] wrote: I am a newbie to tomcat. I installed it ubuntu added the following line to bashrc file export CLASSPATH=/usr/local/tomcat/common/lib/jsp-api.jar:/usr/local/tomcat/common/lib/servlet-api.jar When I run startup.sh it runs ok. Giving this message Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-6-sun But when I type localhost/8080 it says can't connect. What is the problem. Please help. I thank you in advance.
Re: configure tomcat
Thanks a lot Alessandro When I type that command. this appeared tcp6 0 0 :::8080 :::* It seems tomcat working well isn't it.? What is wrong. Thanks again. On Sun, Aug 3, 2008 at 7:43 PM, Alessandro Ferrucci [EMAIL PROTECTED] wrote: Make sure none of the ports specified in conf/server.xml are being used. You can check this by running netstat -na | grep port if nothing comes up then the port is free. -- Signed, Alessandro Ferrucci On Sun, Aug 3, 2008 at 10:07 AM, Nadun Herath [EMAIL PROTECTED] wrote: I am a newbie to tomcat. I installed it ubuntu added the following line to bashrc file export CLASSPATH=/usr/local/tomcat/common/lib/jsp-api.jar:/usr/local/tomcat/common/lib/servlet-api.jar When I run startup.sh it runs ok. Giving this message Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-6-sun But when I type localhost/8080 it says can't connect. What is the problem. Please help. I thank you in advance.
Re: Creating a new Service
- Original Message - From: Robert Drescher [EMAIL PROTECTED] To: users@tomcat.apache.org Sent: Sunday, August 03, 2008 12:27 PM Subject: Creating a new Service Hello everyone in this list! This is my first post in the users-help, after successfully installing Tomcat5.5 The default applications are running (in the /usr/share/tomcat5.5-webapps folder), but for testing my application, I'd like to move mine to a different location in the filesystem. Am I right in my assumption that for this, I will need to create a new service in the server.xml, apart from Catalina? My structure would look like this: /usr/share/myapp/ -- my applications root, the equivalent to /usr/share/tomcat5.5-webapps /usr/share/myapp/webapp -- my applications webapp, the equivalent to /usr/share/tomcat5.5-webapps/ROOT in the end, i'd like requests going to http://localhost:1234 being mapped to /usr/share/myapp/webapp, the same as requests going to http://localhost:8180being now mapped to /usr/share/tomcat5.5-webapps/ROOT Which configurations do I have to change? I've ben messing around with the server.xml and the configurations of my webapp for some time, with the result of getting return code 400 Also, as soon as this is working, can I just remove the definition of catalina from the server.xml to deactivate all the standard applications? I'd be very happy to recieve some advice on this and maybe even example configuration files *wink* Robert Hi Robert... you getting good advice in the other posts... and your question actually lands in the middle of many ways to approach this... It hints at virtual hosting, it can be done with a docbase in a context... it can be done by messing with Catalina Home and Catalina Base in the scripts... its a no mans land kinda question ;) Heres a suggestion... TC installs easily from a ZIP... its drop and play... So rather go for a strategy of /usr/share/MyProduction/TomcatXXX /usr/share/MyTest/TomcatXXX1 /usr/share/MyTest/TomcatXXX2 Because this way your test stuff is away from your production stuff... if you nuke TC with a bad app... no problem And as TC changes... new versions... you are going to want to play with all the new stuff.. The only thing it that TC's must operate on diff ports... you set this in server.XML... ie Connector port=8080 Server port=8005 shutdown=SHUTDOWN Each TC must not be the same... but after that setting. you'll be whizing along... http://localhost:8080/manager/html will let you UNDEPLOY applications that you dont want if your production server is set at Connector port=80 Server port=8006 shutdown=SHUTDOWN http://localhost/manager/html will do the same thing So every port is a diff test system... otherwise an application in one is absolutely identical to another... The only reason to start messing with Catalina BASE and Catalina Home in the scripts with the idea of having many WEBAPP locations and one bin (I feel) is when you have serious disk space problems... but TC is very small and its not worth the pain... Then to get to your last question if you have to have a webapp operate outside of the default Tomcat/webapps... you can tell just that web app to operate outside using something called the context file... and setting the DocBase I think this setup will get you going and its easy later you can mess with docbase and virtual hosting and all the rest... TC is very flexible... so I think try keep it simple... drop and play idea, which works on any OS and your customer will also understand it... You dont want to get to the stage where you have so much script all over the machine, that you too afraid to install another TC... TC is going to be the best thing you ever did its worth the learning curve. Have fun... --- HARBOR : http://www.kewlstuff.co.za/index.htm The most powerful application server on earth. The only real POJO Application Server. See it in Action : http://www.kewlstuff.co.za/cd_tut_swf/whatisejb1.htm --- - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: configure tomcat
i guess u need to write localhost*:*8080 and not localhost*/*8080(See the : and / , and if its typo then may be some other problem) Ravi. On Sun, Aug 3, 2008 at 4:21 PM, Nadun Herath [EMAIL PROTECTED] wrote: Thanks a lot Alessandro When I type that command. this appeared tcp6 0 0 :::8080 :::* It seems tomcat working well isn't it.? What is wrong. Thanks again. On Sun, Aug 3, 2008 at 7:43 PM, Alessandro Ferrucci [EMAIL PROTECTED] wrote: Make sure none of the ports specified in conf/server.xml are being used. You can check this by running netstat -na | grep port if nothing comes up then the port is free. -- Signed, Alessandro Ferrucci On Sun, Aug 3, 2008 at 10:07 AM, Nadun Herath [EMAIL PROTECTED] wrote: I am a newbie to tomcat. I installed it ubuntu added the following line to bashrc file export CLASSPATH=/usr/local/tomcat/common/lib/jsp-api.jar:/usr/local/tomcat/common/lib/servlet-api.jar When I run startup.sh it runs ok. Giving this message Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-6-sun But when I type localhost/8080 it says can't connect. What is the problem. Please help. I thank you in advance.
Re: Problem with Displaying Result of a MySQL Join in Tomcat
There might be a simpler solution than migrating to a completely
different OS. :-)
What exactly do you mean by don't get retrieved? Does it throw an
exception? Is there an error message in Tomcat's log?
When you execute the query in MySQL, do you get exactly the same
results as on the old system? In particular, are the column names what
you expect?
--
Len
On Sat, Aug 2, 2008 at 20:02, Glyn Thomas [EMAIL PROTECTED] wrote:
I am in the process of converting a Tomcat front end for a MySQL database
from
Windows XP to Windows Vista.
The XP version used MySQL Version 5.0.22, Tomcat 5.5.20, JRE 1.5.0 release
12 with Tomcat JDK 4 Compatibility Pack, and J/Connector 5.0.6.
The Vista version is using MySQL Version 5.0.51a, Tomcat 5.5.26, JRE
1.6.0_05, and J/Connector 5.1.6.
I am unable to display any parts of a result set that are retrieved from
JOINed tables in the Vista version - this works fine in the XP version. I
already tried converting the queries to use JOIN syntax instead of WHERE
syntax, without improvement.
For example, this query works correctly in the MySQL command line:
SELECT
i.ImageID,i.DateDay,i.DateMonth,i.DateYear,i.Location1,i.Location2,i.Scanned
YN,i.MediaID,c.Description as 'Country', s.SubjectID, s.SubjectTypeID,
i.CountryID,i.PhotographerID, i.VolumeNumber FROM image_tbl i JOIN
lu_country_tbl c ON (i.countryid=c.countryid) JOIN xrf_image_subject_tbl si
ON (si.Imageid=i.imageid) JOIN subject_tbl s ON (si.Subjectid=s.subjectid)
WHERE (i.imageid=1234);
In JSP, I retrieve the results of this query into an rsImages variable, and
then iterate through the rows using:
c:forEach var=row items=${rsImage.rows}
Rows that retrieve directly from the image_tbl work correctly e.g.
${row.ImageID} will display the image ID.
However, elements from the joined tables, such as ${row.Country} and
${row.SubjectID} don't get retrieved.
Any ideas?
Thanks,
Glyn Thomas
-
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Re: example about deploy application from windows eclipse to linux Tomcat
Sam Wun ha scritto: Hi, Can anyone link me an example about deploy application from windows eclipse to linux Tomcat? Thanks The target operating system is not so important, I use eclipse on mac and deploy applications on linux. Simply copy the content of WebContent folder in a folder under webapp in tomcat (on linux) (call that folder app) after that I copy the content of build folder (from eclipse) in Tomncat (linux) in folder app/WEB-INF/classes Take a look at ant to buil war files, maybe that this is a more polite approach. Edoardo - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Problem with Displaying Result of a MySQL Join in Tomcat
Len, Thanks for your comments and interest. I hadn't thought to check the Tomcat log because the majority of the query appeared to execute, but there is an error being put into the log, see below. Note, this is with a slight variation on the query that I added in my earlier post, but has the same symptoms. Aug 3, 2008 1:10:57 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet jsp threw exception java.net.SocketException: Software caused connection abort: recv failed at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113) at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160) at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188) at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2428) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2882) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2871) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3414) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1734) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1885) at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93) at org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doEndTag(QueryTagSupport.java:215) at org.apache.jsp.index_jsp._jspService(index_jsp.java:371) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Unknown Source) I ran the query in MySQL Command Line Client on both XP and Vista and they return identical results. Thanks Glyn -Original Message- From: Len Popp [mailto:[EMAIL PROTECTED] Sent: Sunday, August 03, 2008 11:31 AM To: Tomcat Users List Subject: Re: Problem with Displaying Result of a MySQL Join in Tomcat There might be a simpler solution than migrating to a completely different OS. :-) What exactly do you mean by don't get retrieved? Does it throw an exception? Is there an error message in Tomcat's log? When you execute the query in MySQL, do you get exactly the same results as on the old system? In particular, are the column names what you expect? -- Len On Sat, Aug 2, 2008 at 20:02, Glyn Thomas [EMAIL PROTECTED] wrote: I am in the process of converting a Tomcat front end for a MySQL database from Windows XP to Windows Vista. The XP version used MySQL Version 5.0.22, Tomcat 5.5.20, JRE 1.5.0 release 12 with Tomcat JDK 4 Compatibility Pack, and J/Connector 5.0.6. The Vista version is using MySQL Version 5.0.51a, Tomcat 5.5.26, JRE 1.6.0_05, and J/Connector 5.1.6. I am unable to display any parts of a result set that are retrieved from JOINed tables in the Vista version - this works fine in the XP version. I already tried converting the
Re: configure tomcat
Well if something is listening on port 8080 when tomcat is not running, then that is the reason (port 8080 is already used), check tomcat logs under logs/catalina.out to see if there are any port conflict errors, or any other exceptions thrown at startup. -- Signed, Alessandro Ferrucci On Sun, Aug 3, 2008 at 10:21 AM, Nadun Herath [EMAIL PROTECTED] wrote: Thanks a lot Alessandro When I type that command. this appeared tcp6 0 0 :::8080 :::* It seems tomcat working well isn't it.? What is wrong. Thanks again. On Sun, Aug 3, 2008 at 7:43 PM, Alessandro Ferrucci [EMAIL PROTECTED] wrote: Make sure none of the ports specified in conf/server.xml are being used. You can check this by running netstat -na | grep port if nothing comes up then the port is free. -- Signed, Alessandro Ferrucci On Sun, Aug 3, 2008 at 10:07 AM, Nadun Herath [EMAIL PROTECTED] wrote: I am a newbie to tomcat. I installed it ubuntu added the following line to bashrc file export CLASSPATH=/usr/local/tomcat/common/lib/jsp-api.jar:/usr/local/tomcat/common/lib/servlet-api.jar When I run startup.sh it runs ok. Giving this message Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-6-sun But when I type localhost/8080 it says can't connect. What is the problem. Please help. I thank you in advance.
HEAD request to a Servlet
See Thread at: http://www.techienuggets.com/Detail?tx=46841 Posted on behalf of a User A request like: HEAD /SomeServlet?id=10471 HTTP/1.1 500 returns a 500 error. The log has the following: javax.servlet.ServletException: Original SevletResponse or wrapped original ServletResponse not passed to RequestDispatcher in violation of SRV.8.2 and SRV.14.2.5.1 at org.apache.catalina.core.ApplicationDispatcher.checkSameObjects(ApplicationDispatcher.java:1018) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:329) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at showme.servlet.Detail.processRequest(Detail.java:153) at showme.servlet.Detail.doGet(Detail.java:163) at javax.servlet.http.HttpServlet.doHead(HttpServlet.java:271) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437) at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:381) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) Any solution to this annoying problem? Thanks - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: HEAD request to a Servlet
See Thread at: http://www.techienuggets.com/Detail?tx=46841 Posted on behalf of a User That's exactly it. Thanks for pointing me in the right direction! Now I have to figure out which version of JBoss will be built around that version of Tomcat. In Response To: [EMAIL PROTECTED] wrote: A request like: HEAD /SomeServlet?id=10471 HTTP/1.1 500 returns a 500 error. The log has the following: javax.servlet.ServletException: Original SevletResponse or wrapped original ServletResponse not passed to RequestDispatcher in violation of SRV.8.2 and SRV.14.2.5.1 Any solution to this annoying problem? Looks like https://issues.apache.org/bugzilla/show_bug.cgi?id=44562 An upgrade to to 6.0.18 should fix it. Mark - To start a new topic, e-mail: [EMAIL PROTECTED] To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Session lost when switching from https to http after upgrade to Tomcat 6
I've been having the same issues others have been asking about. This discussion has been useful, but... === What is a viable workaround for switching to http from https once the user is authenticated? And is that idea unreasonable (see use case below). My main concern is that sending large amounts of static content over https (large JPEGs in particular) will cause an undue load on the server, as opposed to 'http'. Here is my use case: 1. The user's password should be protected over https when logging in. Ditto for the user's home page. 2. Once logged in, a large amount of static content (html, large JPEGs, etc) is available to that user. None of it is of a sensitive nature. 3. While it's true that the sessionid could be hijacked, an attacker would need the user's actual password to do anything malicious; there isn't any sensitive user data, just access to content. So having sessionid travel over plain http would be fine. Lloyd Chambers http://diglloyd.com [Mac OS X 10.5.2 Intel, Tomcat 6.0.16] On Jun 7, 2008, at 3:40 AM, Mark Thomas wrote: The application may be trivial, but not the user's password. If the functionality is important enough to protect with a password over SSL then the session ID, which for most applications will give access to that functionality, should usually be protected in the same way. There will be some exceptions to this. Protected the session by other means is one possibility. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: configure tomcat
Hi Nadun, Did you install a Tomcat version from tomcat.apache.org or is it from Ubuntu's repository? If the latter you will find much more success with the former. Also nothing good usually results from adding CLASSPATH with Tomcat Nadun Herath wrote: Thanks a lot Alessandro When I type that command. this appeared tcp6 0 0 :::8080 :::* It seems tomcat working well isn't it.? What is wrong. Thanks again. On Sun, Aug 3, 2008 at 7:43 PM, Alessandro Ferrucci [EMAIL PROTECTED] wrote: Make sure none of the ports specified in conf/server.xml are being used. You can check this by running netstat -na | grep port if nothing comes up then the port is free. -- Signed, Alessandro Ferrucci On Sun, Aug 3, 2008 at 10:07 AM, Nadun Herath [EMAIL PROTECTED] wrote: I am a newbie to tomcat. I installed it ubuntu added the following line to bashrc file export CLASSPATH=/usr/local/tomcat/common/lib/jsp-api.jar:/usr/local/tomcat/common/lib/servlet-api.jar When I run startup.sh it runs ok. Giving this message Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-6-sun But when I type localhost/8080 it says can't connect. What is the problem. Please help. I thank you in advance. -- Regards Gabe Wong NGASI AppServer Manager JAVA AUTOMATION and SaaS Enablement for Cloud Computing http://www.ngasi.com NEW! FREE Developer account for Hosted version on Amazon EC2 - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with Displaying Result of a MySQL Join in Tomcat
That error looks like a communication problem between Tomcat MySQL, but I don't know why it would only happen when accessing certain columns. Perhaps someone who knows more about JDBC MySQL can explain what it means. -- Len On Sun, Aug 3, 2008 at 13:21, Glyn Thomas [EMAIL PROTECTED] wrote: Len, Thanks for your comments and interest. I hadn't thought to check the Tomcat log because the majority of the query appeared to execute, but there is an error being put into the log, see below. Note, this is with a slight variation on the query that I added in my earlier post, but has the same symptoms. Aug 3, 2008 1:10:57 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet jsp threw exception java.net.SocketException: Software caused connection abort: recv failed at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113) at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160) at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188) at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2428) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2882) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2871) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3414) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1734) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1885) at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93) at org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doEndTag(QueryTagSupport.java:215) at org.apache.jsp.index_jsp._jspService(index_jsp.java:371) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Unknown Source) I ran the query in MySQL Command Line Client on both XP and Vista and they return identical results. Thanks Glyn -Original Message- From: Len Popp [mailto:[EMAIL PROTECTED] Sent: Sunday, August 03, 2008 11:31 AM To: Tomcat Users List Subject: Re: Problem with Displaying Result of a MySQL Join in Tomcat There might be a simpler solution than migrating to a completely different OS. :-) What exactly do you mean by don't get retrieved? Does it throw an exception? Is there an error message in Tomcat's log? When you execute the query in MySQL, do you get exactly the same results as on the old system? In particular, are the column names what you expect? -- Len On Sat, Aug 2, 2008 at 20:02, Glyn Thomas [EMAIL PROTECTED] wrote: I am in the process of converting a Tomcat front end for a MySQL database from Windows XP to Windows Vista. The XP version used MySQL Version 5.0.22, Tomcat 5.5.20, JRE 1.5.0 release 12 with
Re: enabling/disabling a servlet filter conditionally
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
André,
André Warnier wrote:
| To talk in concrete terms, this here is filter B :
| http://jcifs.samba.org/src/docs/ntlmhttpauth.html
The details of Filter B are entirely irrelevant.
| After filter B, I have my own filter C, which must remain in place.
No problem.
| So instead, I want to check, when the request comes in, if it has an
| NTLM Authorization: header.
| If it has, I want to let JCIFS do it's stuff.
| If it hasn't, I want to bypass JCIFS, and set some flag.
So your Filter D looks something like this:
public static final String SKIPPED = SkippedJCIFS;
private static final String NTLM_HEADER = [whatever];
private final JCIFSFilter _jcifs;
public void init(FilterConfig config)
{
~ _jcifs = new JCIFSFilter(); // or whatever
~ _jcifs.init(config);
}
public void destroy()
{
~ _jcifs.destroy();
}
public void doFilter(ServletRequest request,
~ ServletResponse response,
~ FilterChain chain
{
~ if(request instanceof HttpServletRequest)
~ {
~if(null != ((HttpServletRequest)request).getHeader(NTLM_AUTH))
~{
~ // Manually invoke the filter
~ _jcifs.doFilter(request, response, chain);
~}
~else
~{
~ // Skip the JCIFS filter
~ request.setAttribute(SKIPPED, Boolean.TRUE);
~ chain.doFilter(request, response);
~}
~ }
~ else
~ {
~chain.doFilter(request, response);
~ }
}
| My filter C runs after JCIFS. Its role is (right now) to pick up the
| Tomcat user-id (as set by JCIFS), and add it to the request as a HTTP
| header with the user-id, because that is what, finally, the application
| behind the servlet (which I do not control either) expects.
Hmm... this could be problematic, as I think request headers are
read-only. Unless you want to wrap the request and artificially insert
headers. Yuck.
| Thus what my (new) filter A should do is check the request, and
| depending on some condition either run (or let run) the JCIFS
| filter, or else set a request attribute, which will allow filter C later
| to decide to either get the authenticated user-id from Tomcat (as set by
| JCIFS), or set it by default to anonymous (if JCIFS did not run).
Using the above code, FilterC need only check for the SKIPPED key in the
request attributes.
| One concern I have with the scheme you outline above, is that JCIFS
| expects a lot of configuration parameters, normally in the web.xml. If
| I make it into a private instance, how do I set up things so that it
| still finds these parameters ?
I'll leave that as an exercise for the reader ;) Here's a hint: I did
something in the init() method that will help you a lot.
- -chris
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fYwAni1UhZU+IoeJ5UM5ElzYgo+/DJ4E
=cSnI
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-
To start a new topic, e-mail: users@tomcat.apache.org
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Re: Session lost when switching from https to http after upgrade to Tomcat 6
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Lloyd, DIGLLOYD INC wrote: | What is a viable workaround for switching to http from https once | the user is authenticated? Simple: make sure that the user has a session before you switch into HTTPS mode. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkiWgFEACgkQ9CaO5/Lv0PCKXwCfdxyllD2dSk/yyGVl4nfoV5Yp 2wMAoIYP9G645LdAYkeF/hKXfK+zUsqa =oT7H -END PGP SIGNATURE- - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: example about deploy application from windows eclipse to linux Tomcat
I have not used Eclipse so cant say about the same, Netbeans can build a war file (so Iam assuming Eclipse can do the same too) for a web project. You can just copy the war file into webapps folder of Tomcat if directory sharing is done else ftp it to that folder, depends on how your machines and network is configured. -Sameer --- On Sun, 8/3/08, Edoardo Panfili [EMAIL PROTECTED] wrote: From: Edoardo Panfili [EMAIL PROTECTED] Subject: Re: example about deploy application from windows eclipse to linux Tomcat To: Tomcat Users List users@tomcat.apache.org, [EMAIL PROTECTED] Date: Sunday, August 3, 2008, 9:12 PM Sam Wun ha scritto: Hi, Can anyone link me an example about deploy application from windows eclipse to linux Tomcat? Thanks The target operating system is not so important, I use eclipse on mac and deploy applications on linux. Simply copy the content of WebContent folder in a folder under webapp in tomcat (on linux) (call that folder app) after that I copy the content of build folder (from eclipse) in Tomncat (linux) in folder app/WEB-INF/classes Take a look at ant to buil war files, maybe that this is a more polite approach. Edoardo - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Would like to monitor memory use offline
You can write a simple JSP which will run a freeMemory/totalMemory call in your JVM and possibly send a mail/log when the limits are reached. You could set a refresh interval and have this page refresh say every 5 minutes in your browser. Alternatively you can tweak with the manager app code. If you are an administrator ten from a long term monitoring aspect you may want to explore the usage of Lambdaprobe. http://www.lambdaprobe.org -Sameer --- On Sun, 8/3/08, Richard S. Huntrods [EMAIL PROTECTED] wrote: From: Richard S. Huntrods [EMAIL PROTECTED] Subject: Would like to monitor memory use offline To: users@tomcat.apache.org Date: Sunday, August 3, 2008, 7:48 AM I've been running Tomcat for many versions now, mostly without incident. However with the latest set of upgrades rather forced upon me all at once (instead of managed more properly), my application appears to have a severe memory leak. System Info: OS is Solaris 10-u5 (2008); java 1.6.0_06-b02; apache-tomcat-6.0.16; mysql 5.0.51a-solaris10-x86_64. I have fast servers and plenty of memory (8 gigs). I'm running 1 gig stack and getting at least 2 GC/stack exceptions per day (sometimes more). Yes - it's a user/use triggered leak but I can't trace it further yet. Of course what is odd is that there was NO memory leak using older versions of this stuff (Solaris 10 (2006), java 1.5.x, tomcat 5.5.12, mysql 5.0.16). I'm sure the memory leak was there, but it was well masked. On the older system I was running 512 meg stack and it never gave GC or stack errors. So, while I am actively trying to fix the memory leak, I still have to maintain these production servers at operatonal status (politics - don't ask). However, it's difficult as the memory leak is causing repeated GC and out of stack exceptions. What I've noticed recently is that when using the manager application, I can watch the memory utilization grow and more memory get allocated (via refreshing the page), right up until the stack is used up and the main application crashes. However, if I'm watching it grow, and then log on to the server and reset tomcat (stop and then start tomcat), the memory use is back at the start. Thanks to session persistence, no users are harmed during this exercise. So for the moment, while I try and debug the application, I can keep things running by having a cron job periodically reset tomcat for me. But this is really crude. Until I fix the memory leak, I'd like something a little bit more elegant. SO - my question - is there a relatively easy way to create something (say a servlet) to watch the stack *just like I can do manually using the manager application* but email me when the stack approaches the memory limits? Thanks, -Richard - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with Displaying Result of a MySQL Join in Tomcat
Error seems to originate from the MySQL JDBC driver, weird if you say it was working earlier. Can you write a simple Java class to use the same driver to execute the same query and run it with same JDK version under which your Tomcat is running, see if its working or still throwing the error. Might be your JDBC driver is older. -Sameer --- On Mon, 8/4/08, Len Popp [EMAIL PROTECTED] wrote: From: Len Popp [EMAIL PROTECTED] Subject: Re: Problem with Displaying Result of a MySQL Join in Tomcat To: Tomcat Users List users@tomcat.apache.org Date: Monday, August 4, 2008, 7:39 AM That error looks like a communication problem between Tomcat MySQL, but I don't know why it would only happen when accessing certain columns. Perhaps someone who knows more about JDBC MySQL can explain what it means. -- Len On Sun, Aug 3, 2008 at 13:21, Glyn Thomas [EMAIL PROTECTED] wrote: Len, Thanks for your comments and interest. I hadn't thought to check the Tomcat log because the majority of the query appeared to execute, but there is an error being put into the log, see below. Note, this is with a slight variation on the query that I added in my earlier post, but has the same symptoms. Aug 3, 2008 1:10:57 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet jsp threw exception java.net.SocketException: Software caused connection abort: recv failed at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113) at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160) at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188) at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2428) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2882) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2871) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3414) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1734) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1885) at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93) at org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doEndTag(QueryTagSupport.java:215) at org.apache.jsp.index_jsp._jspService(index_jsp.java:371) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Unknown Source) I ran the query in MySQL Command Line Client on both XP and Vista and they return identical results. Thanks Glyn -Original Message- From: Len Popp [mailto:[EMAIL PROTECTED] Sent: Sunday, August 03, 2008 11:31 AM To: Tomcat Users List Subject: Re: Problem with Displaying Result of a MySQL Join in
