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PM89824: NODEAGENT MIGHT NOT RESTART APPSERVER IF THE LOG_ROOT ENVIRONMENT VARIABLE IS CHANGED

Fixes are available

8.5.5.1: WebSphere Application Server V8.5.5 Fix Pack 1
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
8.5.5.2: WebSphere Application Server V8.5.5 Fix Pack 2
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14

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APAR status

  • Closed as program error.

Error description

  • On a node where the WebSphere variable LOG_ROOT has been
    customized, application server JVMs that fail might not be
    automatically restarted by the nodeagent.
    

Local fix

  • Configuring websphere variables so the nodeagent and appserver
    see the same value of $log_root.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server Network Deployment edition or Admin  *
    *                  Agent with monitoring policies set to       *
    *                  automatically restart failed appserver      *
    *                  JVMs.                                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: After customizing WebSphere variable    *
    *                      LOG_ROOT, automatic restart of          *
    *                      failed appserver JVMs might not occur.  *
    ****************************************************************
    * RECOMMENDATION:  Install a fix pack containing this APAR.    *
    ****************************************************************
    Automatic restart of appserver JVMs is handled by the
    node agent or admin agent JVM process.
    Normally this process and appserver processes see the same
    value of the  WebSphere environment variable LOG_ROOT, however
    it can be customized so they are different.
    When a node agent or admin agent detects that a server has
    stopped responding, in some cases it looks for that server's
    PID file to see if the server was stopped deliberately (and
    the PID file has been removed), or unexpectedly (and the PID
    file is still present.)
    If an appserver stopped unexpectedly, and its monitoring
    policy is set to automatically restart it, the agent will
    restart it.
    In some cases where the WebSphere variable LOG_ROOT differed
    between agent and appserver, the agent could look in
    the wrong location for the appserver PID file and not find it,
    and then conclude that a normal shutdown had occured, which
    was incorrect.   This would result in a failed JVM not being
    restarted.
    

Problem conclusion

  • The code is changed to use the LOG_ROOT variable at the scope
    of each appserver instead of the variable at the scope of the
    agent.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 7.0.0.31, 8.0.0.8, and  8.5.5.1.  Please refer to the
    Recommended Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM89824

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-05-27

  • Closed date

    2013-07-19

  • Last modified date

    2013-07-19

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61I PSY

       UP

  • R61P PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP

  • R61Z PSY

       UP

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 850

Reference #: PM89824

Modified date: 19 July 2013