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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

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                • Assignee:
                  permaine Permaine Cheung
                  Reporter:
                  rhusar Radoslav Husar
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                  Dates

                  • Created:
                    Updated:
                    Resolved: