IBM Support

PM88766: MEMORY LEAK: THE CLASS HIERARCHY UNDER COM.PRESENCE.CONNECT.CONN ECT

 

APAR status

  • Closed as program error.

Error description

  • On nodes of a cluster, about 10 percentage or more units can be
    seen for the same com.presence.connect.Connect class hierarchy.
    It is causing very low performance or even OOM eventually.
    
    SessionRemovedFromCache in SessionMapperListener is called by
    AppServer when it removes a session from DynaCache. Unlike the
    sessionDestroyed method this method is guaraneteed to be called
    on all CLuster Members.
    
    A workaround will be restart server of the cluster.
    

Local fix

Problem summary

  • Memory leak: the class hierarchy under
    com.presence.connect.Connect
    
    On nodes of a cluster, about 10 percentage or more units can be
    seen for the same com.presence.connect.Connect class hierarchy.
    It is causing very low performance or even OOM eventually.
    

Problem conclusion

  • A workaround will be restart server of the cluster.
    
    SessionRemovedFromCache in SessionMapperListener is called by
    AppServer when it removes a session from DynaCache. Unlike the
    sessionDestroyed method this method is guaraneteed to be called
    on all CLuster Members.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM88766

  • Reported component name

    LOTUS WEB CONT

  • Reported component ID

    5724I2900

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-05-09

  • Closed date

    2013-05-09

  • Last modified date

    2013-05-17

  • 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

    LOTUS WEB CONT

  • Fixed component ID

    5724I2900

Applicable component levels

  • R610 PSY

       UP

  • R61A PSY

       UP

  • R61B PSY

       UP

  • R61C PSY

       UP

  • R610 PSY

       UP

  • R615 PSY

       UP

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Document Information

Modified date:
21 December 2021