JBoss Enterprise Web Server
  1. JBoss Enterprise Web Server
  2. JBEWS-240

Failover triggers 503 Service Temporarily Unavailable

    Details

    • Type: Bug Bug
    • Status: Closed Closed (View Workflow)
    • Priority: Major Major
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: EWS 1.0.2
    • Security Level: Public (Everyone can see)
    • Labels:
      None
    • Environment:
      perf lab (and all other platforms as well)
    • Affects:
      Documentation (Ref Guide, User Guide, etc.)
    • Similar Issues:
      Show 7 results 

      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

      1. patch.txt
        2 kB
        Jean-Frederic Clere

        Issue Links

          Activity

          Hide
          Jean-Frederic Clere
          added a comment -

          Patch for httpd-2.2.17

          Show
          Jean-Frederic Clere
          added a comment - Patch for httpd-2.2.17
          Hide
          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 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
          Rajesh Rajasekaran
          added a comment -

          Please verify in EWS CR2 1.0.2 build.

          Show
          Rajesh Rajasekaran
          added a comment - Please verify in EWS CR2 1.0.2 build.
          Show
          Michal Babacek
          added a comment - https://issues.jboss.org/browse/JBPAPP-6451
          Hide
          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
          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 Cheung
              Reporter:
              Radoslav Husar
            • Votes:
              0 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: