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  1. mod_cluster
  2. MODCLUSTER-307

Issues using mod_cluster with Tomcat 6 and Executor thread pools

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Details

    • Bug
    • Resolution: Obsolete
    • Minor
    • None
    • 1.2.1.Final
    • None
    • None
    • Workaround Exists
    • Hide

      -Don't use an Executor thread pool

      OR

      -Use a load metric other than the BusyConnectorsLoadMetric when using an Executor thread pool.

      Show
      -Don't use an Executor thread pool OR -Use a load metric other than the BusyConnectorsLoadMetric when using an Executor thread pool.

    Description

      mod_cluster cannot properly determine connector pool statistics from Tomcat 6 when using an Executor thread pool. It fails with the following exception:

      ERROR ContainerBackgroundProcessor[StandardEngine[Catalina]] org.apache.catalina.core.ContainerBase - Exception invoking periodic operation:
      java.lang.IllegalStateException
      at org.jboss.modcluster.container.catalina.CatalinaEngine.getProxyConnector(CatalinaEngine.java:153)
      at org.jboss.modcluster.ModClusterService.connectionEstablished(ModClusterService.java:306)
      at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.status(DefaultMCMPHandler.java:372)
      at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.status(DefaultMCMPHandler.java:347)
      at org.jboss.modcluster.ModClusterService.status(ModClusterService.java:460)
      at org.jboss.modcluster.container.catalina.CatalinaEventHandlerAdapter.lifecycleEvent(CatalinaEventHandlerAdapter.java:239)
      at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
      at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1385)
      at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1649)
      at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1638)
      at java.lang.Thread.run(Thread.java:619)

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          Bug - A problem that impairs or prevents the functions of the product. MODCLUSTER-308 Backport MODCLUSTER-307: Issues using mod_cluster with Tomcat 6 and Executor thread pools

          • Minor - To be worked after urgent, high, and medium priorities are resolved. This term is chosen when the severity of the issue is low, or the complexity or effort to correct it may be higher, relatively speaking. For low priority issues, known workarounds exist or are not needed due to the trivial effort needed to address the issue.
          • Closed
          is related to

          Task - Represents a small unit of work that is not end-user facing. MODCLUSTER-482 Drop Tomcat 6 and JBoss Web support

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

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              Unassigned Unassigned
              rhn-support-aogburn Aaron Ogburn
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              Dates

                Created:
                Updated:
                Resolved: