IBM Support

PI17686: Reconnected agents or clients experience longs transactions or T argetNotAvailableException after server failover

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APAR status

  • Closed as program error.

Error description

  • Agents that disconnect and reconnect to a grid experience longer
    call or transaction times or TargetNotAvailableException after a
    server failover, server stop or start or other actions that
    cause shard movement. After all clients disconnect and a client
    connects again (without restarting the client JVM process) and
    shard movement occurs, the client does not list a CWOBJ1132I
    message indicating a route update was received from the catalog
    server.
    
    An example TargetNotAvailableException:
    
    com.ibm.websphere.objectgrid.ObjectGridRuntimeException:
    Unexpected error on the target partition. Resubmit the request:
    DefaultDomain:Grid:mapSet:1
    com.ibm.websphere.objectgrid.ObjectGridRuntimeException: Too
    many forwards, could not find the target partition in a timely
    fashion.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  WebSphere eXtreme Scale users with XIO      *
    *                  clients                                     *
    *                  or agents that disconnect all grid          *
    *                  connections                                 *
    *                  and reconnect without recycling the client  *
    *                  JVM                                         *
    *                  process.                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Reconnected agents or clients           *
    *                      experience                              *
    *                      long transaction times or               *
    *                      TargetNotAvailableException after a     *
    *                      server failover.                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Agents that disconnect and reconnect to a grid experience
    longer
    call or transaction times or TargetNotAvailableException after
    a
    server failover, server stop, server start, or other actions
    that cause shard movement.
    After a client disconnects and then
    reconnects (without restarting the client JVM process)
    and
    shard movement occurs, the client does not list a CWOBJ1132I
    message that would indicate a route update was received from
    the catalog server.
    An example TargetNotAvailableException:
    com.ibm.websphere.objectgrid.ObjectGridRuntimeException:
    Unexpected error on the target partition. Resubmit the request:
    DefaultDomain:Grid:mapSet:1
    com.ibm.websphere.objectgrid.ObjectGridRuntimeException: Too
    many forwards, could not find the target partition in a timely
    fashion.
    

Problem conclusion

  • Apply the ifix.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI17686

  • Reported component name

    WS EXTREME SCAL

  • Reported component ID

    5724X6702

  • Reported release

    860

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-05-12

  • Closed date

    2014-05-21

  • Last modified date

    2014-05-21

  • 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

    WS EXTREME SCAL

  • Fixed component ID

    5724X6702

Applicable component levels

  • R860 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSTVLU","label":"WebSphere eXtreme Scale"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"860","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
21 May 2014