Re: Tomcat5 - MySql5.0.0a - apache2.0 - XP - JNDI connection problems
Hi, For your JSTL issue, make sure in your WEB-INF/lib directory you have jstl.jar and standard.jar ( for the apache standard implementation ). otherwise, you will not be able to use JSTL. hth, -a The Gman wrote: I am following: http://jakarta.apache.org/tomcat/tomcat-5.0-doc/jndi-datasource-examples-howto.html I am running windows XP - have apache 2.0.48 and Tomcat 5.0.19 up and running with j2sdk1.4.2_04. I am also running MySql5.0.0a Under $CATALINA_HOME/comon/lib mysql-connector-java-3.0.11-stable-bin commons-collections.3.0.jar commons-dbcp-1.1.jar commons-pool-1.1.jar When I run the test code - test.jsp I get the following error: Exception report: org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/sql cannot be resolved in either web.xml or the jar files deployed with this application org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94) org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:404) org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:154) org.apache.jasper.compiler.TagLibraryInfoImpl.generateTLDLocation(TagLibraryInfoImpl.java:359) org.apache.jasper.compiler.TagLibraryInfoImpl.init(TagLibraryInfoImpl.java:190) org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:458) org.apache.jasper.compiler.Parser.parseDirective(Parser.java:523) org.apache.jasper.compiler.Parser.parseElements(Parser.java:1577) org.apache.jasper.compiler.Parser.parse(Parser.java:171) org.apache.jasper.compiler.ParserController.doParse(ParserController.java:258) org.apache.jasper.compiler.ParserController.parse(ParserController.java:139) org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:237) org.apache.jasper.compiler.Compiler.compile(Compiler.java:456) org.apache.jasper.compiler.Compiler.compile(Compiler.java:439) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:553) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) What is wrong with my configuration? Step 2. server.xml configuration says /Context tag of the examples context and the /Host My server.xml doesn't have Context tags should there be one? Step 3. web.xml configuration - Do I make/add these changes to the web.xml under $CATALINA\ROOT\WEB-INF or under a subdirectory called /DBTest/?? Step 4. test code says deploy your web app into $CATALINA_HOME/webapps either as a warfile called DBTest.war orinto a subdirectory called DBTest. So, I created a directory called DBTest and just put the test.jsp file into that directory - doesn't that qualify as deploying?? Thanks for any help to fix my configuration. Tim _ MSN Toolbar provides one-click access to Hotmail from any Web page FREE download! http://toolbar.msn.com/go/onm00200413ave/direct/01/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Help with Cross context
i believe crossContext marks that specific web application as being able to initiate a cross-context request, not as the recipient of a cross-context request. so try marking the other web-application that you are calling out from as crossContext=true -a [EMAIL PROTECTED] wrote: Hey gang, I'm trying to access one web appl from another. I added crosscontext in the server.xml file Host Context docBase=/servlets-examples path=/servlets-examples crossContext=true reloadable=true/Context /Host And in java, ServletContext sc = filterConfig.getServletContext().getContext (/servlets-examples); System.out.println(sc.getServletContextName()); This is giving null pointer exception. I'm held up on this for few hours. I would appreciate if anyone could solve this. Thanks, Madhan Lakshmanan(Maddy) Park Seed Inc 864-941-4232 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: an question about jk2 lbfactor
Hi, I don't think that is correct. From the mod_jk documentation : Using the worker's load-balancing factor, perform weighed-round-robin load balancing where high lbfactor means stronger machine (that is going to handle more requests) I would assume that mod_jk2 retains the same semantics as mod_jk. If all the requests are going to a single machine, i would check to make sure that your tomcatId in your workers2.properties matches the jvmRoute of the engine that you're trying to connect to. hth, -a [EMAIL PROTECTED] wrote: Yes. Lower LB factor means more requests go to that server. Greg -Original Message- From: moch [mailto:[EMAIL PROTECTED] Sent: 31 March 2004 10:31 To: tomcat-user Subject: an question about jk2 lbfactor hi all, what's the jk2's properties value lbfactor really mean? I have set up a cluster by apache + jk2 + tomcat5, it has 2 node, I want tomcat1 to process all request and tomcat2 just as an backup. so I set tomcat1's lbfactor=100 and tomcat2's lbfactor=0, but almost all request go to tomcat2. Had I set lb_factor wrong? Thanks for any help. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
TC5 Nightly : ClassCastException using Cluster manager
( let me know if comments regarding nightly builds should be in the tomcat-dev mailing list instead ). Hi, I have a nightly build of Tomcat 5 ( mainly because i need some fixes in HEAD to resolve cross context issues ) , and I've set up the Cluster Manager ( in the updated format ) as specified in the server.xml. I came across a problem, however, when the ClusterManger is expiring sessions : WARNING: Unable to perform background process on manager java.lang.ClassCastException at org.apache.catalina.cluster.session.DeltaManager.processExpires(DeltaManager.java:914) at org.apache.catalina.cluster.session.DeltaManager.backgroundProcess(DeltaManager.java:904) at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:4546) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1619) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1628) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1628) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1608) at java.lang.Thread.run(Thread.java:534) A couple things of note.. I don't really have any specific contexts, all my applications are webapps ( .war files ) and I have only a single DefaultContext set up in my server.xml file. From what I gather looking at the source code, it looks like not all the sessions retrieved by the findSessions() method call are DeltaSessions. I'm not sure why this is. The only reason I could come up with was because my web applications are specifically noted as contexts in my server.xml. Thanks for any input, -a - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: TC5 Nightly : ClassCastException using Cluster manager
As an additional side effect, since this is happening on session expiry the session count keeps getting higher and higher... right now I have 8942 sessions on a single instance! :-) -a Aadi Deshpande wrote: ( let me know if comments regarding nightly builds should be in the tomcat-dev mailing list instead ). Hi, I have a nightly build of Tomcat 5 ( mainly because i need some fixes in HEAD to resolve cross context issues ) , and I've set up the Cluster Manager ( in the updated format ) as specified in the server.xml. I came across a problem, however, when the ClusterManger is expiring sessions : WARNING: Unable to perform background process on manager java.lang.ClassCastException at org.apache.catalina.cluster.session.DeltaManager.processExpires(DeltaManager.java:914) at org.apache.catalina.cluster.session.DeltaManager.backgroundProcess(DeltaManager.java:904) at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:4546) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1619) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1628) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1628) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1608) at java.lang.Thread.run(Thread.java:534) A couple things of note.. I don't really have any specific contexts, all my applications are webapps ( .war files ) and I have only a single DefaultContext set up in my server.xml file. From what I gather looking at the source code, it looks like not all the sessions retrieved by the findSessions() method call are DeltaSessions. I'm not sure why this is. The only reason I could come up with was because my web applications are specifically noted as contexts in my server.xml. Thanks for any input, -a - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: clustering question?
Hi, You're changing the wrong port. You should not change the mcastPort, instead you should change the tcpListenPort The mcastPort and mcastAddr should be the same for every instance participating in the cluster. Also, as a word of advice, it's best to keep the cluster size down to 2-3 ( and at most 4 ). we've had a lot of trouble with larger cluster sizes, not because of any fault of the cluster manager, just that it's a huge (network/memory ) resource hog having all your sessions replicated six times over. Of course, this is only for our case so YMMV. hth, -a [EMAIL PROTECTED] wrote: I am getting the following info in my log file. Mar 8, 2004 12:45:10 PM org.apache.catalina.cluster.tcp.SimpleTcpCluster start INFO: Cluster is about to start Mar 8, 2004 12:45:10 PM org.apache.catalina.cluster.tcp.ReplicationListener run SEVERE: Unable to start cluster listener. java.net.SocketException: Address already in use at sun.nio.ch.Net.bind(Native Method) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:108 ) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:52) at org.apache.catalina.cluster.tcp.ReplicationListener.listen(ReplicationLi stener.java:148) at org.apache.catalina.cluster.tcp.ReplicationListener.run(ReplicationListe ner.java:129) at java.lang.Thread.run(Thread.java:534) Mar 8, 2004 12:45:10 PM org.apache.catalina.cluster.mcast.McastService start INFO: Sleeping for 2000 secs to establish cluster membership 2004-03-08 12:45:13,151 [main] DEBUG (ManagerBase.java:671) - Registering Tomcat-Standalone:type=Manager,path=/,host=etrak-plus.com 2004-03-08 12:45:13,156 [main] DEBUG (StandardManager.java:697) - Force random number initialization starting 2004-03-08 12:45:13,157 [main] DEBUG (ManagerBase.java:555) - Opening /dev/urandom 2004-03-08 12:45:13,158 [main] DEBUG (ManagerBase.java:366) - Getting message digest component for algorithm MD5 2004-03-08 12:45:13,158 [main] DEBUG (ManagerBase.java:380) - Completed getting message digest component 2004-03-08 12:45:13,159 [main] DEBUG (ManagerBase.java:383) - getDigest() 1 2004-03-08 12:45:13,160 [main] DEBUG (StandardManager.java:700) - Force random number initialization completed 2004-03-08 12:45:13,161 [main] DEBUG (StandardManager.java:406) - Start: Loading persisted sessions 2004-03-08 12:45:13,161 [main] DEBUG (StandardManager.java:416) - Loading persisted sessions from SESSIONS.ser 2004-03-08 12:45:13,165 [main] DEBUG (StandardManager.java:430) - Creating custom object input stream for class loader 2004-03-08 12:45:13,171 [main] DEBUG (StandardManager.java:460) - Loading 0 persisted sessions 2004-03-08 12:45:13,172 [main] DEBUG (StandardManager.java:507) - Finish: Loading persisted sessions Here is the cluster info that i have in my server.xml. Cluster className=org.apache.catalina.cluster.tcp.SimpleTcpCluster name=etrakCluster1 managerClassName=org.apache.catalina.cluster.session.DeltaManager expireSessionsOnShutdown=false useDirtyFlag=true Membership className=org.apache.catalina.cluster.mcast.McastService mcastAddr=228.0.0.106 mcastPort=45100 mcastFrequency=500 mcastDropTime=3000/ Receiver className=org.apache.catalina.cluster.tcp.ReplicationListener tcpListenAddress=auto tcpListenPort=4001 tcpSelectorTimeout=100 tcpThreadCount=6/ Sender className=org.apache.catalina.cluster.tcp.ReplicationTransmitter replicationMode=pooled/ Valve className=org.apache.catalina.cluster.tcp.ReplicationValve filter=.*\.gif;.*\.js;.*\.jpg;.*\.htm;.*\.html;.*\.txt;/ /Cluster my mcastAddr range is from 228.0.0.106 - 228.0.0.115 and the ports run from 45100-45109. Note each host has its own cluster entry and i have 10 different hosts. This is on tomcat 5.0.19 running on slackware 9.X Would i need to reboot the server to clear this up? Is this a problem with clustering or could it be a setup problem on my part. Thanks, Daniel Schulken --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.598 / Virus Database: 380 - Release Date: 2/28/2004 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: load balancing with apache2
Hi, Looks like a permissions issue. Is Apache running as nobody? Does it have rights to /conf/balancing.conf? ( which seems to located from the root directory of your server ). shyam wrote: Hi All, Can somebody help me with this. I am struck . thanks a lot From: shyam [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 09, 2004 10:28 AM To: 'Tomcat Users List' Subject: load balancing with apache2 Hi All, I have set up the clustering with tomcat 5 and it works awesome. I followed the steps provided in the documentation for apache load balancing. I had success the first time but after that I keep getting this error in my apache logs The system cannot find the path specified. : mod_rewrite: can't access text RewriteMap file /conf/balancing.conf I have the balancing.conf in the conf directory. Balancing.conf LB1 tomcat1:8080 LB3 tomcat2:8080 ALL tomcat1:8080|tomcat2:8080 Can you please tell me whats wrong with the above. Thanks I advance shyam - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: clustering question?
Hi, The register requests error is independent of the cluster setup ( like Filip said ) and will in no way affect it. Beyond that, the register requests error is completely harmless ( see http://www.mail-archive.com/[EMAIL PROTECTED]/msg119877.html ) and does not prevent me from providing stickySessions or clustering. You should enable logging for the package org.apache.catalina.cluster ( i use JDK14 logging so ask me if that's what you're using ) to see if replication is occurring. hth, -a Alex wrote: my box isn't pretty. i've also had some other weirdness which others haven't experienced. some odd jndi errors, rah rah rah. anyways, it doesn't work. between this and not being able to get jk2 to do sticky sessions, i'm going nuts. have two different routes to go and neither are working. *sigh* On Tue, 9 Mar 2004, Filip Hanik (lists) wrote: Date: Tue, 9 Mar 2004 13:44:08 -0600 From: Filip Hanik (lists) [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Subject: RE: clustering question? that is correct, should work out of the box :) Filip - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Cross context c:import not working?
For the archives : this is bug 27309 ( http://nagoya.apache.org/bugzilla/show_bug.cgi?id=27309 ) and has been fixed in head. -a Aadi Deshpande wrote: Hi, I'm not sure if this or the taglibs-user is the right place for posting this, but it looks to be a Tomcat error. When trying to use a c:import in the vein of : c:import url=/test.jsp context=/profile/ Hi, Not sure if this is the right place or taglibs-user for this issue ( it seems to be a tomcat problem ), but it looks like cross context c:imports don't work if a page is session-enabled. This used to work in Tomcat 5.0.16 but is broken in 5.0.19 For example : Both / and /profile contexts have crossContext=true c:import url=/cross_context_import.jsp context=/profile/ if cross_context_import.jsp has %@ page session=false %, everything works well. if cross_context_import doesn't have that ( or %@ page session=true % ), then it gives me a NullPointerException ( stack trace at the end ) The problem it seems is that inside ApplicationHttpRequest.getSession(), the call to context.getManager().findSession(id) returns null ( this is for the first time that the context is accessed ). However, before checking to see if the session is null, the .access() method is called on it ( presumably to update the access time ) . The whole thing is wrapped in an IOException, but which gets ignored since NullPointerException is a RuntimeException. What's odd is that the check for the ( localSession == null ) follows immediately after the try block, so it looks like some sort of oversight in my eyes. What I've done is take the source code, and refactor it so that the access comes in an else block ( it looks like other session management code was put in place after 5.0.16 ) I'd like to make sure I didn't miss anything before erroneously reporting a bug. java.lang.NullPointerException at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:546) at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:512) at org.apache.jasper.runtime.PageContextImpl._initialize(PageContextImpl.java:192) at org.apache.jasper.runtime.PageContextImpl.initialize(PageContextImpl.java:167) at org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(JspFactoryImpl.java:149) at org.apache.jasper.runtime.JspFactoryImpl.getPageContext(JspFactoryImpl.java:106) at org.apache.jsp.index_jsp._jspService(index_jsp.java:55) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:750) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:636) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:546) at org.apache.taglibs.standard.tag.common.core.ImportSupport.doEndTag(ImportSupport.java:179) at org.apache.jsp.cross_005fcontext_005fimport_jsp._jspx_meth_c_import_0(cross_005fcontext_005fimport_jsp.java:85) at org.apache.jsp.cross_005fcontext_005fimport_jsp._jspService(cross_005fcontext_005fimport_jsp.java:59) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at clubmom.framework.PersistentHibernateSession.doFilter(PersistentHibernateSession.java:62) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:233) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:257) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke
Re: cross context include
I've been struggling with the same problem. I read the bug report, but it only adresses part of the problem, the part that doesn't retrieve the session properly. I actually patched the code independently and have discovered another problem, that somehow sessions are either getting lost or mixed up when you do cross context imports in at least one advanced scenario : 1) page Z in context 'a' import a page X from context 'b' 2) page X in context 'b' imports a page Y in context 'a' in this case, the session that was created when you import page X in context b is the session that's available in page Y in context a. here's my test case --- test_page1.jsp ( context '/profile' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % Test of cross context imports : % request.getSession().setAttribute(test_attrib, 12345); % % out.println(test_attrib in ( test_page1.jsp ) is + session.getAttribute(test_attrib) ); %br/ % out.println(session id ( in test_page1.jsp) is : + request.getSession().getId() ); % br/ c:import url=/test_other.jsp context=/ / test_other.jsp ( context '/' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % % request.getSession().setAttribute(test_other_attrib, 54321 ); % % out.println(test attrib ( in test_other.jsp ) is : + request.getSession().getAttribute(test_attrib) ); %br/ % out.println(test other attrib ( in test_other.jsp) is : + request.getSession().getAttribute(test_other_attrib) ); %br/ % out.println(session id ( in test_other.jsp) is : + request.getSession().getId() ); % br/ c:import url=/test_page2.jsp context=/profile/ test_page2.jsp ( context '/profile' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % % out.println(test_attrib ( in test_page2.jsp ) is + session.getAttribute(test_attrib) ); % br/ % out.println(test other attrib ( in test_page2.jsp) is : + request.getSession().getAttribute(test_other_attrib) ); % br/ % out.println(session id ( in test_page2.jsp) is : + request.getSession().getId() ); % br/ The output i get when I hit test_page1.jsp is : Test of cross context imports : test_attrib in ( test_page1.jsp ) is 12345 session id ( in test_page1.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F test attrib ( in test_other.jsp ) is : null test other attrib ( in test_other.jsp) is : 54321 session id ( in test_other.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F test_attrib ( in test_page2.jsp ) is null test other attrib ( in test_page2.jsp) is : 54321 session id ( in test_page2.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F The output I get when i hit test_other.jsp is : test attrib ( in test_other.jsp ) is : null test other attrib ( in test_other.jsp) is : 54321 session id ( in test_other.jsp) is : 55B2068D3011D727DF15068ADAD713E2 test_attrib ( in test_page2.jsp ) is null test other attrib ( in test_page2.jsp) is : null session id ( in test_page2.jsp) is : 55B2068D3011D727DF15068ADAD713E2 the output that i get when i hit test_page2.jsp : test_attrib ( in test_page2.jsp ) is 12345 test other attrib ( in test_page2.jsp) is : null session id ( in test_page2.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F Any hints on how to resolve it? Asim Alp wrote: If indeed we need to put it on all pages, then yes, it's no problem. We do have a couple perl geniuses on staff :) I'm sure we'll find a way to get around it. My main concern right now is to to understand the reason of the problem first. I read the bug report, but still can't understand why an extra session prevents our c:imports from working? Asim On Mar 2, 2004, at 1:46 PM, Mike Curwen wrote: If you have a perl genius on staff, he can do ALL pages with a single command. Scary stuff, but cool when it works. :) -Original Message- From: Asim Alp [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 02, 2004 12:33 PM To: Tomcat Users List Subject: Re: cross context include I guess we'll have to find a way of going over the 10,000+ pages. Maybe we can write a small program to automate it. I don't like dirty solutions :) If this is indeed a bug in our software, it should better be fixed. One last question though. As much as I know, setting page session to false only means that there is no need to create an additional session. What's this have to do with c:imports? Why does an additional session prevent our c:imports? Asim On Mar 2, 2004, at 1:15 PM, Remy Maucherat wrote: Asim Alp wrote: Thank you for your prompt replies. I just read the bug, and understood what the problem was. Now, though, I have another question. Is there a way of setting page session to false at a higher level. For example somewhere from the server.xml file? My problem is that we have over 100 websites with tens of thousands of jsp pages. Every single one of these JSP pages rely on these c:imports... It's almost impossible for us to manually go over each one of these jsp pages and add the %@ page session=false%
Re: cross context include
More research...once the context gets set in a c:import, it seems like that's the way it's stuck for the life of the HttpRequest. .. i.e. in my example below.. if i start at page Z, the context always remains as 'a' if I start at page X, the context always remains as 'b' so it looks like tomcat can't handle more than one context switch, maybe because the request that is created for the initial page is the one that's passed down ( instead of a separate internal request being created for the import ) Any more thoughts? Aadi Deshpande wrote: I've been struggling with the same problem. I read the bug report, but it only adresses part of the problem, the part that doesn't retrieve the session properly. I actually patched the code independently and have discovered another problem, that somehow sessions are either getting lost or mixed up when you do cross context imports in at least one advanced scenario : 1) page Z in context 'a' import a page X from context 'b' 2) page X in context 'b' imports a page Y in context 'a' in this case, the session that was created when you import page X in context b is the session that's available in page Y in context a. here's my test case --- test_page1.jsp ( context '/profile' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % Test of cross context imports : % request.getSession().setAttribute(test_attrib, 12345); % % out.println(test_attrib in ( test_page1.jsp ) is + session.getAttribute(test_attrib) ); %br/ % out.println(session id ( in test_page1.jsp) is : + request.getSession().getId() ); % br/ c:import url=/test_other.jsp context=/ / test_other.jsp ( context '/' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % % request.getSession().setAttribute(test_other_attrib, 54321 ); % % out.println(test attrib ( in test_other.jsp ) is : + request.getSession().getAttribute(test_attrib) ); %br/ % out.println(test other attrib ( in test_other.jsp) is : + request.getSession().getAttribute(test_other_attrib) ); %br/ % out.println(session id ( in test_other.jsp) is : + request.getSession().getId() ); % br/ c:import url=/test_page2.jsp context=/profile/ test_page2.jsp ( context '/profile' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % % out.println(test_attrib ( in test_page2.jsp ) is + session.getAttribute(test_attrib) ); % br/ % out.println(test other attrib ( in test_page2.jsp) is : + request.getSession().getAttribute(test_other_attrib) ); % br/ % out.println(session id ( in test_page2.jsp) is : + request.getSession().getId() ); % br/ The output i get when I hit test_page1.jsp is : Test of cross context imports : test_attrib in ( test_page1.jsp ) is 12345 session id ( in test_page1.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F test attrib ( in test_other.jsp ) is : null test other attrib ( in test_other.jsp) is : 54321 session id ( in test_other.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F test_attrib ( in test_page2.jsp ) is null test other attrib ( in test_page2.jsp) is : 54321 session id ( in test_page2.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F The output I get when i hit test_other.jsp is : test attrib ( in test_other.jsp ) is : null test other attrib ( in test_other.jsp) is : 54321 session id ( in test_other.jsp) is : 55B2068D3011D727DF15068ADAD713E2 test_attrib ( in test_page2.jsp ) is null test other attrib ( in test_page2.jsp) is : null session id ( in test_page2.jsp) is : 55B2068D3011D727DF15068ADAD713E2 the output that i get when i hit test_page2.jsp : test_attrib ( in test_page2.jsp ) is 12345 test other attrib ( in test_page2.jsp) is : null session id ( in test_page2.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F Any hints on how to resolve it? Asim Alp wrote: If indeed we need to put it on all pages, then yes, it's no problem. We do have a couple perl geniuses on staff :) I'm sure we'll find a way to get around it. My main concern right now is to to understand the reason of the problem first. I read the bug report, but still can't understand why an extra session prevents our c:imports from working? Asim On Mar 2, 2004, at 1:46 PM, Mike Curwen wrote: If you have a perl genius on staff, he can do ALL pages with a single command. Scary stuff, but cool when it works. :) -Original Message- From: Asim Alp [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 02, 2004 12:33 PM To: Tomcat Users List Subject: Re: cross context include I guess we'll have to find a way of going over the 10,000+ pages. Maybe we can write a small program to automate it. I don't like dirty solutions :) If this is indeed a bug in our software, it should better be fixed. One last question though. As much as I know, setting page session to false only means that there is no need to create an additional session. What's this have to do with c:imports? Why does an additional session prevent our c:imports? Asim On Mar 2, 2004, at 1:15
Re: JSP whitespace removal
consider using the trimSpaces option of the Jasper compiler in your $CATALINA_BASE/conf/server.xml . -a John Sidney-Woollett wrote: Hi We want to achieve a 10-15% data reduction of the HTML being served by our webserver (generated by JSP pages). This will have an impact on our bandwidth charges from our ISP... We can achieve this by by simply removing all the \n\r, \t characters and replacing repeated occurences of(double space) by (single space). But we don't want to do this in our source JSP files as they will become unmaintainable/unreadable. eg table tr tdColumn 1/td tdColumn 2/td tr /table (69 characters) becomes tabletrtdColumn 1/tdtdColumn 2/tdtr/table (57 characters), that's an 17% saving for that text block... I know that we could: i) write/implement a filter to process the outputstream - BUT we use OSCache (www.opensymphony.com) to cache (included) JSP pages, and we don't want to reprocess cached data using another filter. ii) use a script to transform or preprocess our JSP pages before they are deployed - simple, but may have code breaking (between dev and live system) or maintenance implications? iii) create a tag library to process a text block (or another JSP), BUT we've heard a rumour that taglibs can be inefficient (is that true?) Question: is it possible to use a directive in a JSP page to force the compiler to remove these characters to achieve our desired data reduction? Are there any other techniques or solutions that anyone else is using? Thanks John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: JSP whitespace removal
[EMAIL PROTECTED] wrote: On Wednesday 03 March 2004 05:33 pm, you wrote: consider using the trimSpaces option of the Jasper compiler in your $CATALINA_BASE/conf/server.xml . What, precisly does that do? I've tried it and seen no difference in the resulting HTML. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] it trims the spaces during page compilation. make sure you blow away your work directory or otherwise edit your pages so that they get recompiled. works really well for me. -a - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How do I automatically post urls?
You could look at commons HttpClient if you don't want to roll your own using the java.net libraries. There are a bunch of them out there on the internet that you could google for. Keep in mind that you're probably looking for something that supports https since I'm almost positive PayPal would require secure communications. -a Riaan Oberholzer wrote: Thanks I was trying to get the answers in the HTTPRequest/Response classes I want to use it for PayPal verifications. They send me a url (which a servlet of mine accepts), I send something similar back. Do they have libraries to do it? Or has someone done it before? --- Shapira, Yoav [EMAIL PROTECTED] wrote: Hi, How do I dymanically create a url, eg: http://domain.com/servlet.do?name=xxx Umm, like java.net.URL url = new URL(http://domain.com/servlet.do?name=xxx;); ? and then, from my Java app, post it. Ie, the receiver will see it as a normal client accessing. Will be used in processing of automatic payments. If you mean open a connection to it, read up on java.net.URLConnection. But this will be a GET request. If you mean simulate a POST HTTP operation, that's significantly more complicated so I won't go into it unless that's what you really want. Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Search - Find what youre looking for faster http://search.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: cross context include
I think I came across a couple of things that should help resolve the issue. 1) in ApplicationContext, the getContext(String path) method erroneously checks for context != null in the while loop when it should be checking for child !=null (since it seems if the context is ever null, it would throw an NPE well before that point, so I'm assuming that was an oversight ). 2) This, I believe, to be the underlying cause of my issue. It occurs in wrapRequest in ApplicationDispatcher. What is going on is that ( using my example page / context names from below ), when I start at page Z in context a and call page X in context b, the contexts are both different, and crossContext = true ( wrapRequest defines crossContext as context.getPath != current.getContextPath() ). Since the getSession(boolean create) is wrapped entirely in an 'if crossContext = true' block, the code get executed fine.. It's when the included page X in context includes a page Y in context b again that the problem arises.. Now, since context.getPath == current.getContextPath(), the whole getSession() block is never executed, adn the session creation is delegated to the super.getSession and the incorrect session is retrieved. I don't know enough about Tomcat ( though I am learning ) to understand the relationships between contexts, request, and their respective facades and wrappers, so I'm hoping someone on the list who's involved in the development can shed some light on the proper resolution. much thanks in advance, -a Aadi Deshpande wrote: More research...once the context gets set in a c:import, it seems like that's the way it's stuck for the life of the HttpRequest. .. i.e. in my example below.. if i start at page Z, the context always remains as 'a' if I start at page X, the context always remains as 'b' so it looks like tomcat can't handle more than one context switch, maybe because the request that is created for the initial page is the one that's passed down ( instead of a separate internal request being created for the import ) Any more thoughts? Aadi Deshpande wrote: I've been struggling with the same problem. I read the bug report, but it only adresses part of the problem, the part that doesn't retrieve the session properly. I actually patched the code independently and have discovered another problem, that somehow sessions are either getting lost or mixed up when you do cross context imports in at least one advanced scenario : 1) page Z in context 'a' import a page X from context 'b' 2) page X in context 'b' imports a page Y in context 'a' in this case, the session that was created when you import page X in context b is the session that's available in page Y in context a. here's my test case --- test_page1.jsp ( context '/profile' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % Test of cross context imports : % request.getSession().setAttribute(test_attrib, 12345); % % out.println(test_attrib in ( test_page1.jsp ) is + session.getAttribute(test_attrib) ); %br/ % out.println(session id ( in test_page1.jsp) is : + request.getSession().getId() ); % br/ c:import url=/test_other.jsp context=/ / test_other.jsp ( context '/' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % % request.getSession().setAttribute(test_other_attrib, 54321 ); % % out.println(test attrib ( in test_other.jsp ) is : + request.getSession().getAttribute(test_attrib) ); %br/ % out.println(test other attrib ( in test_other.jsp) is : + request.getSession().getAttribute(test_other_attrib) ); %br/ % out.println(session id ( in test_other.jsp) is : + request.getSession().getId() ); % br/ c:import url=/test_page2.jsp context=/profile/ test_page2.jsp ( context '/profile' ) : %@ taglib prefix=c uri=http://java.sun.com/jsp/jstl/core; % % out.println(test_attrib ( in test_page2.jsp ) is + session.getAttribute(test_attrib) ); % br/ % out.println(test other attrib ( in test_page2.jsp) is : + request.getSession().getAttribute(test_other_attrib) ); % br/ % out.println(session id ( in test_page2.jsp) is : + request.getSession().getId() ); % br/ The output i get when I hit test_page1.jsp is : Test of cross context imports : test_attrib in ( test_page1.jsp ) is 12345 session id ( in test_page1.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F test attrib ( in test_other.jsp ) is : null test other attrib ( in test_other.jsp) is : 54321 session id ( in test_other.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F test_attrib ( in test_page2.jsp ) is null test other attrib ( in test_page2.jsp) is : 54321 session id ( in test_page2.jsp) is : 2796EBFF6C413841B7B2D496D7E8FD3F The output I get when i hit test_other.jsp is : test attrib ( in test_other.jsp ) is : null test other attrib ( in test_other.jsp) is : 54321 session id ( in test_other.jsp) is : 55B2068D3011D727DF15068ADAD713E2 test_attrib ( in test_page2.jsp ) is null test
Re: Cluster error when starting up web application
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=27296 Thank you for making excellent software. p.s. i'd also like to just say thanks to person(s) reponsible for the main build.xml file which made getting and building tomcat such a breeze. Filip Hanik (lists) wrote: thanks for the very diligent email, open a bug, and I will address this issue shortly. thank you for helping us make better software Filip -Original Message- From: Aadi Deshpande [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 25, 2004 10:36 PM To: Tomcat Users List Subject: Re: Cluster error when starting up web application Upon further research, it seems that DeltaSession.setId() fires the sessionCreated events to registered listeners, but this happens before a session is declared valid ( i.e. setValid(true) has not been called ). so when a registered listener tries to utilize ( what it seems to believe is ) a newly created session, the setAttribute method throws the IllegalStateException.. Now I don't know too much about how the actual workings of the HttpSession should go, but in my opinion, the sessionCreated events should not be fired unless a valid session has been created. which seems to imply that maybe setValid() should doing the firing... However, that doesn't sit well with me since it doesn't make sense for a session to be truly valid unless it has a sessionId, which either forces there to be an implict order between setId() and setValid() which is no good, requiring that either/or check to see if the other has been truly satisfied, and setting up some sort of implicit sequence coupling. the alternative, as I see it, is move the tellNew() invocation to the DeltaManager ( it's declared public, so it's already exposed ). I tried that, by patching up the TC5 sources and it seemed to resolve the issue. Again, as I know little to nothing of how sessions should work and what other implications this refactoring may have, what should be my next course of action? Should I contact the webwork people? Is this not correct use of sessions and session listeners? Should I open up a bug and/or propose my patch? Thanks in advance for reading and/or responding, -a Aadi Deshpande wrote: Hi, I just got Tomcat 5.0.19 and after setting up the new delta based cluster manager, i get this during the startup my application : SEVERE: Session event listener threw exception java.lang.IllegalStateException: setAttribute: Session already invalidated at org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.j ava:1306) at org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.j ava:1283) at org.apache.catalina.cluster.session.DeltaSessionFacade.setAttribute(DeltaSes sionFacade.java:17 7) at com.opensymphony.webwork.lifecycle.SessionLifecycleListener.sessionCreated(S essionLifecycleLis tener.java:50) at org.apache.catalina.cluster.session.DeltaSession.tellNew(DeltaSession.java:4 59) at org.apache.catalina.cluster.session.DeltaSession.setId(DeltaSession.java:431 ) at org.apache.catalina.cluster.session.DeltaManager.createSession(DeltaManager. java:377) at org.apache.catalina.cluster.session.DeltaManager.messageReceived(DeltaManage r.java:895) at org.apache.catalina.cluster.session.DeltaManager.messageDataReceived(DeltaMa nager.java:794) at org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(SimpleT cpCluster.java:561 ) at org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:117) at org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpReplica tionThread.java:17 6) at org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationThrea d.java:114) As far as I can tell, it's happening when I request a page that has the webwork2 RequestLifecycleFilter set for that url pattern. The doFilter function creates a HttpSession if none exists, which I assume calls the SessionLifecycleListener.sessionCreated(), but for some reason, it seems like the session is being invalidated prematurely.. Here's the relevant piece from my web.xml : filter filter-namecontainer/filter-name filter-class com.opensymphony.webwork.lifecycle.RequestLifecycleFilter/filter-class /filter filter-mapping filter-namecontainer/filter-name url-pattern/*/url-pattern !-- modify appropriately -- /filter-mapping listener listener-class com.opensymphony.webwork.lifecycle.SessionLifecycleListener/listener-class /listener listener listener-class com.opensymphony.webwork.lifecycle.ApplicationLifecycleListener/listener-cl ass /listener and from my server.xml file, taken pretty much verbatim from the default server.xml: Cluster className=org.apache.catalina.cluster.tcp.SimpleTcpCluster managerClassName
Cross context c:import not working?
Hi, I'm not sure if this or the taglibs-user is the right place for posting this, but it looks to be a Tomcat error. When trying to use a c:import in the vein of : c:import url=/test.jsp context=/profile/ Hi, Not sure if this is the right place or taglibs-user for this issue ( it seems to be a tomcat problem ), but it looks like cross context c:imports don't work if a page is session-enabled. This used to work in Tomcat 5.0.16 but is broken in 5.0.19 For example : Both / and /profile contexts have crossContext=true c:import url=/cross_context_import.jsp context=/profile/ if cross_context_import.jsp has %@ page session=false %, everything works well. if cross_context_import doesn't have that ( or %@ page session=true % ), then it gives me a NullPointerException ( stack trace at the end ) The problem it seems is that inside ApplicationHttpRequest.getSession(), the call to context.getManager().findSession(id) returns null ( this is for the first time that the context is accessed ). However, before checking to see if the session is null, the .access() method is called on it ( presumably to update the access time ) . The whole thing is wrapped in an IOException, but which gets ignored since NullPointerException is a RuntimeException. What's odd is that the check for the ( localSession == null ) follows immediately after the try block, so it looks like some sort of oversight in my eyes. What I've done is take the source code, and refactor it so that the access comes in an else block ( it looks like other session management code was put in place after 5.0.16 ) I'd like to make sure I didn't miss anything before erroneously reporting a bug. java.lang.NullPointerException at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:546) at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:512) at org.apache.jasper.runtime.PageContextImpl._initialize(PageContextImpl.java:192) at org.apache.jasper.runtime.PageContextImpl.initialize(PageContextImpl.java:167) at org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(JspFactoryImpl.java:149) at org.apache.jasper.runtime.JspFactoryImpl.getPageContext(JspFactoryImpl.java:106) at org.apache.jsp.index_jsp._jspService(index_jsp.java:55) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:750) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:636) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:546) at org.apache.taglibs.standard.tag.common.core.ImportSupport.doEndTag(ImportSupport.java:179) at org.apache.jsp.cross_005fcontext_005fimport_jsp._jspx_meth_c_import_0(cross_005fcontext_005fimport_jsp.java:85) at org.apache.jsp.cross_005fcontext_005fimport_jsp._jspService(cross_005fcontext_005fimport_jsp.java:59) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at clubmom.framework.PersistentHibernateSession.doFilter(PersistentHibernateSession.java:62) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:233) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:257) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245) at
Cluster error when starting up web application
Hi, I just got Tomcat 5.0.19 and after setting up the new delta based cluster manager, i get this during the startup my application : SEVERE: Session event listener threw exception java.lang.IllegalStateException: setAttribute: Session already invalidated at org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.java:1306) at org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.java:1283) at org.apache.catalina.cluster.session.DeltaSessionFacade.setAttribute(DeltaSessionFacade.java:17 7) at com.opensymphony.webwork.lifecycle.SessionLifecycleListener.sessionCreated(SessionLifecycleLis tener.java:50) at org.apache.catalina.cluster.session.DeltaSession.tellNew(DeltaSession.java:459) at org.apache.catalina.cluster.session.DeltaSession.setId(DeltaSession.java:431) at org.apache.catalina.cluster.session.DeltaManager.createSession(DeltaManager.java:377) at org.apache.catalina.cluster.session.DeltaManager.messageReceived(DeltaManager.java:895) at org.apache.catalina.cluster.session.DeltaManager.messageDataReceived(DeltaManager.java:794) at org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(SimpleTcpCluster.java:561 ) at org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:117) at org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpReplicationThread.java:17 6) at org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationThread.java:114) As far as I can tell, it's happening when I request a page that has the webwork2 RequestLifecycleFilter set for that url pattern. The doFilter function creates a HttpSession if none exists, which I assume calls the SessionLifecycleListener.sessionCreated(), but for some reason, it seems like the session is being invalidated prematurely.. Here's the relevant piece from my web.xml : filter filter-namecontainer/filter-name filter-class com.opensymphony.webwork.lifecycle.RequestLifecycleFilter/filter-class /filter filter-mapping filter-namecontainer/filter-name url-pattern/*/url-pattern !-- modify appropriately -- /filter-mapping listener listener-class com.opensymphony.webwork.lifecycle.SessionLifecycleListener/listener-class /listener listener listener-class com.opensymphony.webwork.lifecycle.ApplicationLifecycleListener/listener-class /listener and from my server.xml file, taken pretty much verbatim from the default server.xml: Cluster className=org.apache.catalina.cluster.tcp.SimpleTcpCluster managerClassName=org.apache.catalina.cluster.session.DeltaManager expireSessionsOnShutdown=false useDirtyFlag=true Membership className=org.apache.catalina.cluster.mcast.McastService mcastAddr=224.64.64.128 mcastPort=45600 mcastFrequency=500 mcastDropTime=3000/ Receiver className=org.apache.catalina.cluster.tcp.ReplicationListener tcpListenAddress=auto tcpListenPort=4060 tcpSelectorTimeout=100 tcpThreadCount=3/ Sender className=org.apache.catalina.cluster.tcp.ReplicationTransmitter replicationMode=pooled/ Valve className=org.apache.catalina.cluster.tcp.ReplicationValve filter=.*\.gif;.*\.js;.*\.jpg;.*\.htm;.*\.html;.*\.txt;/ /Cluster Anyone know what's going on? Or can provide some insight into what I may be missing? Thanks for any info. -a - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Cluster error when starting up web application
Upon further research, it seems that DeltaSession.setId() fires the sessionCreated events to registered listeners, but this happens before a session is declared valid ( i.e. setValid(true) has not been called ). so when a registered listener tries to utilize ( what it seems to believe is ) a newly created session, the setAttribute method throws the IllegalStateException.. Now I don't know too much about how the actual workings of the HttpSession should go, but in my opinion, the sessionCreated events should not be fired unless a valid session has been created. which seems to imply that maybe setValid() should doing the firing... However, that doesn't sit well with me since it doesn't make sense for a session to be truly valid unless it has a sessionId, which either forces there to be an implict order between setId() and setValid() which is no good, requiring that either/or check to see if the other has been truly satisfied, and setting up some sort of implicit sequence coupling. the alternative, as I see it, is move the tellNew() invocation to the DeltaManager ( it's declared public, so it's already exposed ). I tried that, by patching up the TC5 sources and it seemed to resolve the issue. Again, as I know little to nothing of how sessions should work and what other implications this refactoring may have, what should be my next course of action? Should I contact the webwork people? Is this not correct use of sessions and session listeners? Should I open up a bug and/or propose my patch? Thanks in advance for reading and/or responding, -a Aadi Deshpande wrote: Hi, I just got Tomcat 5.0.19 and after setting up the new delta based cluster manager, i get this during the startup my application : SEVERE: Session event listener threw exception java.lang.IllegalStateException: setAttribute: Session already invalidated at org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.java:1306) at org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.java:1283) at org.apache.catalina.cluster.session.DeltaSessionFacade.setAttribute(DeltaSessionFacade.java:17 7) at com.opensymphony.webwork.lifecycle.SessionLifecycleListener.sessionCreated(SessionLifecycleLis tener.java:50) at org.apache.catalina.cluster.session.DeltaSession.tellNew(DeltaSession.java:459) at org.apache.catalina.cluster.session.DeltaSession.setId(DeltaSession.java:431) at org.apache.catalina.cluster.session.DeltaManager.createSession(DeltaManager.java:377) at org.apache.catalina.cluster.session.DeltaManager.messageReceived(DeltaManager.java:895) at org.apache.catalina.cluster.session.DeltaManager.messageDataReceived(DeltaManager.java:794) at org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(SimpleTcpCluster.java:561 ) at org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:117) at org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpReplicationThread.java:17 6) at org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationThread.java:114) As far as I can tell, it's happening when I request a page that has the webwork2 RequestLifecycleFilter set for that url pattern. The doFilter function creates a HttpSession if none exists, which I assume calls the SessionLifecycleListener.sessionCreated(), but for some reason, it seems like the session is being invalidated prematurely.. Here's the relevant piece from my web.xml : filter filter-namecontainer/filter-name filter-class com.opensymphony.webwork.lifecycle.RequestLifecycleFilter/filter-class /filter filter-mapping filter-namecontainer/filter-name url-pattern/*/url-pattern !-- modify appropriately -- /filter-mapping listener listener-class com.opensymphony.webwork.lifecycle.SessionLifecycleListener/listener-class /listener listener listener-class com.opensymphony.webwork.lifecycle.ApplicationLifecycleListener/listener-class /listener and from my server.xml file, taken pretty much verbatim from the default server.xml: Cluster className=org.apache.catalina.cluster.tcp.SimpleTcpCluster managerClassName=org.apache.catalina.cluster.session.DeltaManager expireSessionsOnShutdown=false useDirtyFlag=true Membership className=org.apache.catalina.cluster.mcast.McastService mcastAddr=224.64.64.128 mcastPort=45600 mcastFrequency=500 mcastDropTime=3000/ Receiver className=org.apache.catalina.cluster.tcp.ReplicationListener tcpListenAddress=auto tcpListenPort=4060 tcpSelectorTimeout=100 tcpThreadCount=3/ Sender
Re: tomcat and VM settings
Hi, Not sure what you're asking. Hard numbers I don't have. I've pretty much run all my server based applications with -server since they introduced it, but I think Sun's documentation and common knowledge bears it out. There's also some obscure documentation that explains what the -server options sets defaults to ( like method compile threshold, stack size, heap size, etc.. ) which also shows them to be better for applications that do the same thing day in and day out. I will try to locate this. I do hope to have numbers soon with the effect of the new Parallel and Concurrent garbage collectors in effect. Let me know if I can be of more assistance, -a Shapira, Yoav wrote: Howdy, In general, -server will make a huge difference for long running applications Can you back that up with any specific facts? Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tomcat and VM settings
Parker, Matt wrote: I'm wondering if anyone has done any tomcat benchmarking with different Hotspot VM settings. Specifically, I'm wondering if -server or -d64 make noticeable differences on the Solaris 8 sparc platform. I have read Sun's documentation about what these settings are supposed to do, but I haven't really seen anything talked about within the context of Tomcat or J2EE. Thanks in advance, Matt - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] In general, -server will make a huge difference for long running applications, since a lot of the internal optimizations ( such as how often to compile/recompile and how long to cache ) are turned on by the -server/-client switch. On Solaris 8, you can get a little more juice a lot of times by switching to the alternate libthread ( http://java.sun.com/docs/hotspot/threads/threads.html ) and using the 1-1 model. ( This, i believe is the default on Solaris 9 ) There's a lot of options related to garbage collecting, leading one to the obvious conclusion that tuning the GC can provide boosts in performance. There's a lot of good reading at http://java.sun.com/docs/hotspot/. I don't have any hard numbers, but we were able to do some very postive things, once we found the right information. HTH, -a - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: cookies, Safari, and Tomcat
Hollerman Geralyn M wrote: I'm trying to figure out some behavior I'm seeing only when I use Safari (v1.25 - downloaded from the Apple site last week) and Tomcat. This involves cookies. I am using Tomcat 5.0.16. I have written a servlet that sends a cookie back to the server for use later on; I can see this cookie when using Mozilla, Netscape, or IE when I look at a list of cookies. I also see the JESSIONID cookie that Tomcat uses in this list. However, when I use Safari, I see the JESSIONID cookie, but not the cookie I created. I'm not sure what the reason is for this; if I didn't do something in my code, I'd like to find out what it is, and for this I'd imagine I'd have to look thru the Tomcat source and see what's done when the JSESSIONID cookie is created. Unfortunately, I can't seem to find this. Has anyone seen this behavior before? How should I deal with it? Or can someone point me to the program where the JESSSIONID cookie for Tomcat is created? Thanks! What is the cookie version of the cookie that you created? We've noticed some odd behaviour when using cookies and that magically went away when we started using version 0 cookies. -a - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Administering and monitoring under TC 5
Thanks for the info. I'm still a little confused about what is meant by replace the MXRI jars with the MX4J jars i have jmx.jar, jmx-remote.jar, and jmx-remote-tools.jar in my $CATALINA_HOME/common/lib. I'm running TC5.0.16 under J2SDK 1.4.2 Thanks again, -a Bill Barker wrote: Aadi Deshpande [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hello all, There's much talk about how TC5 is JMX-enabled, so I'm wondering what tools are available for monitoring and administering a TC5 server. I've checked out the manager application and it provides some basic information ( such as sessions ), but I was wondering what people's experiences were with more detailed tools ( if any exist ). Particularly, I'm looking for monitoring software that will let me view the number of sessions, and how active my JNDI datasource are ( how many connections in the pool, how many active, etc.. ). The manager app gives you the ability to get the number of sessions, but Datasources must be listed in the globalresources section, and to date, I haven't figured out how to describe a Resource/ResourceParams in the GlobalNamingResources section and still utilize it in my context ( I've had to list it under the Context that I wish to utilize it for ). If anyone has any hints in this department, that would be very helpful. Finally, I'd like to know if it's possible to set up TC5 to be a JMX-enabled server in such a fashion that you can access it remotely using some tool like MC4J, and if so where I can find some documentation wrt. setting this up. If you enable the AJP/1.3 Connector (even if you are not using Apache/IIS/SunOne), then if you set in jk2.properties: mx.jrmpPort=value and/or mx.httpPort=value (where value is an actual port number :), and replace the MXRI jars with the MX4J jars, then you can use the MX4J Adaptors to remotely configure Tomcat. Again, thanks for any input you may have. -aadi - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat 5 incompatibilities with JSTL 1.1 ?
Hi, I'm tryin to use Tomcat 5 and the newly released JSTL 1.1 and I get the following error whenever I try to do a x:anything? I've gotten this same error under the Beta 1 running under Tomcat 5. I've tried TC 5.0.16, 5.0.18, and the 20040203 nightly build ( each under J2SDK 1.4.1 with the new xalan.jar and J2SDK 1.4.2 plain install ) I've posted to the taglibs board and Kris Schnieder was nice enough to point me to the bug : http://nagoya.apache.org/bugzilla/show_bug.cgi?id=26611 and http://marc.theaimsgroup.com/?t=10754069598 Does anyone have any insight into why I would be getting this error? I thought the JSTL was tested under Tomcat 5, so I'm not sure what I am doing wrong. Thanks in advance for any help, -a org.apache.taglibs.standard.tag.common.xml.UnresolvableException: $prefix:javax.servlet.include.query_string org.apache.taglibs.standard.tag.common.xml.XPathUtil$JstlVariableContext.notull(Unknown Source) org.apache.taglibs.standard.tag.common.xml.XPathUtil$JstlVariableContext.getVariableValue(Unknown Source) org.apache.taglibs.standard.tag.common.xml.XPathUtil$JstlVariableContext.getVariableOrParam(Unknown Source) org.apache.taglibs.standard.tag.common.xml.XPathUtil.fillVarStack(Unknown Source) org.apache.taglibs.standard.tag.common.xml.XPathUtil.selectNodes(Unknown Source) org.apache.taglibs.standard.tag.common.xml.ForEachTag.prepare(Unknown Source) javax.servlet.jsp.jstl.core.LoopTagSupport.doStartTag(Unknown Source) org.apache.jsp.core.skeleton.mom_005frewards_005fcallout_jsp._jspx_meth_x_forEach_0(mom_005frewards_005fcallout_jsp.java:2138) org.apache.jsp.core.skeleton.mom_005frewards_005fcallout_jsp._jspx_meth_cms_randomSet_0(mom_005frewards_005fcallout_jsp.java:2113) org.apache.jsp.core.skeleton.mom_005frewards_005fcallout_jsp._jspService(mom_005frewards_005fcallout_jsp.java:134) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.taglibs.standard.tag.common.core.ImportSupport.acquireString(Unknown Source) org.apache.taglibs.standard.tag.common.core.ImportSupport.doEndTag(Unknown Source) org.apache.jsp.account.callouts.index_005fgrocerycardform_005fcallout_jsp._jspx_meth_c_import_0(index_005fgrocerycardform_005fcallout_jsp.java:579) org.apache.jsp.account.callouts.index_005fgrocerycardform_005fcallout_jsp._jspx_meth_c_otherwise_0(index_005fgrocerycardform_005fcallout_jsp.java:555) org.apache.jsp.account.callouts.index_005fgrocerycardform_005fcallout_jsp._jspx_meth_c_choose_0(index_005fgrocerycardform_005fcallout_jsp.java:284) org.apache.jsp.account.callouts.index_005fgrocerycardform_005fcallout_jsp._jspService(index_005fgrocerycardform_005fcallout_jsp.java:128) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.taglibs.standard.tag.common.core.ImportSupport.acquireString(Unknown Source) org.apache.taglibs.standard.tag.common.core.ImportSupport.doEndTag(Unknown Source) org.apache.jsp.loyalty_005findex_jsp._jspx_meth_c_import_1(loyalty_005findex_jsp.java:419) org.apache.jsp.loyalty_005findex_jsp._jspService(loyalty_005findex_jsp.java:126) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.taglibs.standard.tag.common.core.ImportSupport.acquireString(Unknown Source) org.apache.taglibs.standard.tag.common.core.ImportSupport.doEndTag(Unknown Source) org.apache.jsp.core.skeleton.layout_005fno_005frightnav_jsp._jspx_meth_c_import_4(layout_005fno_005frightnav_jsp.java:650) org.apache.jsp.core.skeleton.layout_005fno_005frightnav_jsp._jspx_meth_c_if_2(layout_005fno_005frightnav_jsp.java:625) org.apache.jsp.core.skeleton.layout_005fno_005frightnav_jsp._jspx_meth_c_forTokens_1(layout_005fno_005frightnav_jsp.java:592)
Re: problems shutting down server when enabling the SimpleTcpCluster
I've definitely noticed this issue on TC 5.0.16 ( though I can't remember if we noticed in 5.0.18, but I am testing that version now ) We're running J2SDK 1.4.1_03 on Solaris 8 , if that's any help. I'm also going to be trying this on J2SDK 1.4.2 with 5.0.18 and I will report back. Again, thanks for any input you can provide, -a Filip Hanik (lists) wrote: which version of tomcat? the latest? this means that a thread is not a daemon thread, and the stop will not work. this was a bug a long time ago. has it resurfaced? Filip -Original Message- From: Aadi Deshpande [mailto:[EMAIL PROTECTED] Sent: Monday, February 02, 2004 2:00 PM To: [EMAIL PROTECTED] Subject: problems shutting down server when enabling the SimpleTcpCluster Hi, we have 2 tomcat instances that are clustered via the SimpleTcpReplication cluster. When they start up, i see that they are both communicating and they seem to be working OK. However, whenever I try to shut down an instance using the $TOMCAT_HOME/bin/catalina.sh script, the server never fully dies. It seems like there around 20 threads still hanging around, all doing something related to persisting these sessions. This is in a development instance so we have maybe 4 or 5 sessions at best at any given time,so I'm not sure why replication would take so long. These servers hang around forever and can only be killed via a kill -9 . Any further attempts to run 'catalina.sh stop' results in the connection refused error, presumably because the instance has stopped listening on that port for requests. And i know the server is attempting to shut down since i get the Unregistering... messages in my log files. Any help is much appreciated, Thanks in advance, Aadi Deshpande - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.576 / Virus Database: 365 - Release Date: 1/30/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.577 / Virus Database: 366 - Release Date: 2/3/2004 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Administering and monitoring under TC 5
Hello all, There's much talk about how TC5 is JMX-enabled, so I'm wondering what tools are available for monitoring and administering a TC5 server. I've checked out the manager application and it provides some basic information ( such as sessions ), but I was wondering what people's experiences were with more detailed tools ( if any exist ). Particularly, I'm looking for monitoring software that will let me view the number of sessions, and how active my JNDI datasource are ( how many connections in the pool, how many active, etc.. ). The manager app gives you the ability to get the number of sessions, but Datasources must be listed in the globalresources section, and to date, I haven't figured out how to describe a Resource/ResourceParams in the GlobalNamingResources section and still utilize it in my context ( I've had to list it under the Context that I wish to utilize it for ). If anyone has any hints in this department, that would be very helpful. Finally, I'd like to know if it's possible to set up TC5 to be a JMX-enabled server in such a fashion that you can access it remotely using some tool like MC4J, and if so where I can find some documentation wrt. setting this up. Again, thanks for any input you may have. -aadi - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Please help Console Problem in tomcat 5.0.16
i've always managed to get this error when i have spaces between the xml pi ( ?xml version=... ? ) and the start of the file. i'd check for that, and that you have no spaces at the '?xml' and a space before the '?' hope this helps, -a Avinash Sridhar wrote: Hi, Thanks for the reply.How do I correct the invalid server.xml file. Kindly let me know. server.xml file for the same directory structure. Context path=/sampleapp docBase=sampleapp debug=0 reloadable=true /Context Thanks AS On Mon, 02 Feb 2004 Bodycombe, Andrew wrote : This indicates your server.xml is invalid. -Original Message- From: Avinash Sridhar [mailto:[EMAIL PROTECTED] Sent: 02 February 2004 16:07 To: [EMAIL PROTECTED] Subject: Please help Console Problem in tomcat 5.0.16 have my own directory as sampleapp which has the necessary structure and the .class file is put into the following directory structure. classes/package1/structure/HelloServlet.class. All in the %TOMCAT% home directory. My question is in %TOMCAT%/conf/server.xml file how is the Context /Context tag written. I have written it like this Context path=/sampleapp docBase=sampleapp debug=0 reloadable=true /Context The directory structure of sampleapp is as follows.. %TOMCAT%/webapps/sampleapp/WEB-INF/classes /lib /sourcefiles /web.xml. The classes directory has the structure like this.. classes/package1/structure/HelloServlet class file. My Web.xml file looks like this / web.xml / ?xml version=1.0 encoding=ISO-8859-1? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app display-nameServlet 2.4 Examples/display-name description Servlet 2.4 Examples /description !-- Servlet mapping start -- !-- Define servlets. i.e. bind a servlet name to a class -- servlet servlet-nameHelloServlet/servlet-name servlet-classpackage1.structure.HelloServlet/servlet-class /servlet !-- bind a servlet name to a URL (pattern) -- servlet-mapping servlet-nameHelloServlet/servlet-name url-pattern/sampleapp/url-pattern /servlet-mapping !-- Servlet mapping end -- /web-app /* web.xml **/ /*** Console error */ Feb 2, 2004 8:33:19 AM org.apache.commons.digester.Digester fatalError SEVERE: Parse Fatal Error at line 3 column 6: The processing instruction target matching [xX][mM][lL] is not allowed. /*** Console error */ Let me know if any changes are to be made. Help greatly apreciated. Thanks AS - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
trouble load balancing with mod_jk2
Greetings,
(Not sure if this is the place for mod_jk2 questions or if there is
another mailing list)
I'm having trouble figuring out how loadbalancing should work using
mod_jk2 with Apache2 and Tomcat 5.0.18.
I have 2 tomcat instances on 2 machines ( running with different port
numbers )
I set them up in a single lb group, using the same lb factor of 80 ( a
number I picked arbitrarily )
my lb configuration is set to graceful=1, stickySession=1, and timeout=0
( i've appended my workers2.properties as additional info ).
However, it seems that when i turn on the apache2 and monitor the
server, all the instances start going to the first instance in the list
and bog that instance down. There doesn't seem to be any load balancing
going on, nor is there any sort of failover when the instance becomes
unusable ( the thread pool hits the maximum of 200 )
The documentation on mod_jk2 isn't all that clear and a lot of it seems
to be geared for implementing the jni mechanism as opposed to the
channel socket ajp mechanism.
I must clearly be doing something wrong, but I can't figure it out.
Additional q's :
the mod_jk2 instance is constantly initing and shutting down. Is this
normal operating procedure?
does a higher lb factor or lower lb factor increase that machine's
chances of being selected?
do dashes ( - ) in the server name have any effect?
I've listed my workers2.properties file inline for review.
Thanks in advance for any help.
Aadi Deshpande
##workers2.properties
[logger]
level=DEBUG
[config:]
file=${serverRoot}/conf/workers2.properties
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
#[logger.file:0]
#level=DEBUG
#file=${serverRoot}/logs/jk2.log
[shm:]
info=Scoreboard. Required for reconfiguration and status with
multiprocess servers
file=${serverRoot}/logs/jk2.shm
size=
debug=0
disabled=0
[workerEnv:]
info=Global server options
timing=1
debug=0
# Default Native Logger (apache2 or win32 )
# can be overriden to a file logger, useful
# when tracing win32 related issues
#logger=logger.file:0
[status:]
info=Status worker, display runtime information
[uri:/jkstatus/*]
info=Display status information and check the config file
group=status:
[lb:lb]
info=Default load balancer.
debug=0
stickySession=1
timeout=0
[channel.socket:tc-server2:6090]
info=Ajp13 forwarding over socket
graceful=1
debug=0
lb_factor=80
group=lb
tomcatId=tc-server2:6090
[channel.socket:tc-server2:6190]
info=Ajp13 forwarding over socket
graceful=1
debug=0
lb_factor=80
group=lb
tomcatId=tc-server2:6190
[channel.socket:tc-server2:6290]
info=Ajp13 forwarding over socket
graceful=1
debug=0
lb_factor=80
group=lb
tomcatId=tc-server2:6290
[channel.socket:tc-server1:6090]
info=Ajp13 forwarding over socket
graceful=1
debug=0
lb_factor=80
group=lb
tomcatId=tc-server1:6090
[channel.socket:tc-server1:6190]
info=Ajp13 forwarding over socket
graceful=1
debug=0
lb_factor=80
group=lb
tomcatId=tc-server1:6190
[channel.socket:tc-server1:6290]
info=Ajp13 forwarding over socket
graceful=1
debug=0
lb_factor=80
group=lb
tomcatId=tc-server1:6290
[uri:/*.jsp]
info=Map the whole webapp
[uri:/*.sx]
info=Map the whole webapp
-
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problems shutting down server when enabling the SimpleTcpCluster
Hi, we have 2 tomcat instances that are clustered via the SimpleTcpReplication cluster. When they start up, i see that they are both communicating and they seem to be working OK. However, whenever I try to shut down an instance using the $TOMCAT_HOME/bin/catalina.sh script, the server never fully dies. It seems like there around 20 threads still hanging around, all doing something related to persisting these sessions. This is in a development instance so we have maybe 4 or 5 sessions at best at any given time,so I'm not sure why replication would take so long. These servers hang around forever and can only be killed via a kill -9 . Any further attempts to run 'catalina.sh stop' results in the connection refused error, presumably because the instance has stopped listening on that port for requests. And i know the server is attempting to shut down since i get the Unregistering... messages in my log files. Any help is much appreciated, Thanks in advance, Aadi Deshpande - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
