[jboss-jira] [JBoss JIRA] (AS7-6397) Cluster Environment Web Session Locks

Fri Feb 1 12:25:51 EST 2013

    [ https://issues.jboss.org/browse/AS7-6397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751862#comment-12751862 ] 

Richard Achmatowicz commented on AS7-6397:
------------------------------------------

Hi Manuel

If you have the possibility to upgrade and test in a non-production environment, this would be preferable. AS 7.1.3 is a bug fix release (containing fixes to some 400 issues, including the current issue). Your installation would also benefit from those extra fixes; the chances that those additional bugs fixes would raise yet further issues is small, although I can't guarantee that no additional issues would not arise. 

However, if you don't feel comfortable with that option, I have attached the patch for fix AS7-4260 in the file AS7-4260.patch. You can download AS 7.1.1 from GitHub, apply the patch and then rebuild to create a new AS 7.1.1 binary with the patch included. I have done this, ran the AS 7.1.1 testsuite (including clustering tests) and the testsuite passes.

1. Download AS 7.1.1 sources as a zip file from here:  https://github.com/jbossas/jboss-as/tree/7.1.1.Final (just click on the Zip icon to download the zip file)
2. Unzip the zip file, creating a directory jboss-as-7.1.1.Final 
3. Apply the attached patch - I use Linux patch and would do the following:
cd jboss-as-7.1.1.Final
patch -p1 < /tmp/AS7-4260.patch
4. Rebuild AS 7.1.1
cd jboss-as-7.1.1.Final
./build.sh clean install
5. Pick up the modified AS 7.1.1.Final binary which is located at 
jboss-as-7.1.1.Final/build/target/jboss-as-7.1.1.Final

Let me know if you have any issues. 

> Cluster Environment Web Session Locks
> -------------------------------------
>
>                 Key: AS7-6397
>                 URL: https://issues.jboss.org/browse/AS7-6397
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 7.1.1.Final
>         Environment: Windows 7 64bits, 8 GB RAM
>            Reporter: Manuel Pinto
>            Assignee: Paul Ferraro
>         Attachments: AS7-4260.patch
>
>
> Hi,
> I found a problem with web session locks in a cluster environment. We have two Liferay 6.1.1 nodes (over JBoss 7.1.1 Final) in standalone-ha.xml configuration with infinispan "web" cache-container, replicated-cache and file store. The load balancer is configured in non sticky session mode.
> Problem: when a node processes requests in some cases locks the session and never unlock it, preventing other node from processing requests for that session. The affected node never regain the locked session and keep throwing the following exception for all subsequent requests and only recover a session when other node shutdown:
> Note: we also tried invalidation-cache and distributed-cache and all locking modes but without success.
> 17:39:00,174 ERROR [org.apache.catalina.connector.CoyoteAdapter] (http--172.16.250.105-8080-4) An exception or error occurred in the container during the request processing: java.lang.RuntimeException: JBAS018060: Exception acquiring ownership of Cvn-K+r-cBGesIBoDrakJhrO
> at org.jboss.as.web.session.ClusteredSession.acquireSessionOwnership(ClusteredSession.java:528) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
> at org.jboss.as.web.session.ClusteredSession.access(ClusteredSession.java:496) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
> at org.apache.catalina.connector.Request.doGetSession(Request.java:2625) [jbossweb-7.0.13.Final.jar:]
> at org.apache.catalina.connector.Request.getSession(Request.java:2375) [jbossweb-7.0.13.Final.jar:]
> at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:81) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]
> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]
> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]
> at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_32]
> Caused by: org.jboss.as.clustering.lock.TimeoutException: JBAS010223: Cannot acquire lock //default-host//Cvn-K+r-cBGesIBoDrakJhrO from cluster
> at org.jboss.as.clustering.lock.SharedLocalYieldingClusterLockManager.lock(SharedLocalYieldingClusterLockManager.java:439)
> at org.jboss.as.clustering.web.infinispan.DistributedCacheManager.acquireSessionOwnership(DistributedCacheManager.java:372)
> at org.jboss.as.web.session.ClusteredSession.acquireSessionOwnership(ClusteredSession.java:520) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
> ... 12 more
> The standalone-ha.xml "web" cache-container config is the following:
> <cache-container name="web" aliases="standard-session-cache" default-cache="repl">
> <transport lock-timeout="60000"/>
> <replicated-cache name="repl" mode="SYNC" batching="true">
> <file-store/>
> </replicated-cache>
> <replicated-cache name="sso" mode="SYNC" batching="true"/>
> <distributed-cache name="dist" mode="ASYNC" batching="true">
> <file-store/>
> </distributed-cache>
> </cache-container>
> Thanks,
> Manuel Pinto

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