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  1. JBoss Enterprise Web Server
  2. JBEWS-240

Failover triggers 503 Service Temporarily Unavailable

    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: EWS 1.0.2
    • Labels:
      None
    • Environment:
      perf lab (and all other platforms as well)
    • Affects:
      Documentation (Ref Guide, User Guide, etc.)

      Description

      Simple scenario: mod_cluster and 4 JBoss nodes are deployed. When a JBoss server fails (JVM is forcibly killed), about 0.5% of sessions result in 503.

      These edge scenarios are why people are going to deploy mod_cluster and it should be our priority to provide 100% session correctness. We should target all of these QoS problems for production release since mod_jk handles these cases.

      Same question as to JBPAPP-3463: is there a known workaround we could provide to customers?

      503 Service Temporarily Unavailable</title>
      </head><body>
      <h1>Service Temporarily Unavailable</h1>
      <p>The server is temporarily unable to service your
      request due to maintenance downtime or capacity
      problems. Please try again later.</p>
      <hr>
      <address>Apache/2.2.10 (Red Hat) Server at perf08 Port 8888</address>

      Test results:
      http://hudson.qa.jboss.com/hudson/view/mod_cluster-QE/job/eap-50-mod_cluster-failover-rhel4-x86_64/7/

      perf01-perf04 = JBoss nodes
      perf08 = mod_cluster + load driver node

        Gliffy Diagrams

        1. patch.txt
          2 kB
          Jean-Frederic Clere

          Issue Links

            Activity

            Hide
            jfclere Jean-Frederic Clere added a comment -

            Patch for httpd-2.2.17

            Show
            jfclere Jean-Frederic Clere added a comment - Patch for httpd-2.2.17
            Hide
            permaine Permaine Cheung added a comment -

            Patch incorporated in:
            httpd22-2.2.17-11.ep5.el4
            httpd-2.2.17-11.1.ep5.el5
            httpd-2.2.17-11.2.ep5.el6
            The patch is also applied in Hudson builds. The fix will be in EWS 1.0.2 CR2.

            Show
            permaine Permaine Cheung added a comment - Patch incorporated in: httpd22-2.2.17-11.ep5.el4 httpd-2.2.17-11.1.ep5.el5 httpd-2.2.17-11.2.ep5.el6 The patch is also applied in Hudson builds. The fix will be in EWS 1.0.2 CR2.
            Hide
            rrajesh Rajesh Rajasekaran added a comment -

            Please verify in EWS CR2 1.0.2 build.

            Show
            rrajesh Rajesh Rajasekaran added a comment - Please verify in EWS CR2 1.0.2 build.
            Show
            mbabacek Michal Karm Babacek added a comment - https://issues.jboss.org/browse/JBPAPP-6451
            Hide
            jira-bugzilla-migration RH Bugzilla Integration added a comment -

            This issue has been migrated to Bugzilla bug 899173. Please note that this JIRA issue has been closed as part of the migration and therefore you will need to check the Bugzilla issue to find the current status.

            Show
            jira-bugzilla-migration RH Bugzilla Integration added a comment - This issue has been migrated to Bugzilla bug 899173 . Please note that this JIRA issue has been closed as part of the migration and therefore you will need to check the Bugzilla issue to find the current status.

              People

              • Assignee:
                permaine Permaine Cheung
                Reporter:
                rhusar Radoslav Husar
              • Votes:
                0 Vote for this issue
                Watchers:
                6 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:

                  Development