IBM Support

PK65932: FILE DESCRIPTORS ARE NOT CLOSED PROPERLY ON AIX WITH AN /ETC/GROUPS FILE THAT EXCEEDS 4096 BYTES

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When WebSphere Application Server v6.02 on AIX uses the local
    registry setting and uses an /etc/groups file that is larger
    than 4096 bytes, file descriptors are not properly closed and
    causes a leak. Customers may, over time, see system messages
    that indicate that the OS has run out of file descriptors.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of WebSphere Application Server   *
    *                  on AIX using localOS as the user registry   *
    *                  who have large /etc/group files             *
    ****************************************************************
    * PROBLEM DESCRIPTION: When a system's /etc/group file is      *
    *                      larger than 4096 bytes, a Java          *
    *                      OutOfMemory error could occur:          *
    *                                                              *
    *                                                              *
    *                      java.lang.OutOfMemoryError:             *
    *                      JVMCI015:OutOfMemoryError,              *
    *                      cannot create anymore threads due to    *
    *                      memory or resource constraints          *
    *                                  at                          *
    *                                                              *
    *                      com.ibm.CORBA.iiop.UtilDelegateImpl.wra *
    *                      pException(UtilDelegateImpl.java:       *
    *                      704)                                    *
    *                                                              *
    *                                                              *
    *                      Additionally, this error was            *
    *                      witnessed on the failing system:        *
    *                                                              *
    *                      Caused by:                              *
    *                      java.security.PrivilegedActionException *
    *                      : java.io.IOException:                  *
    *                      Too many open files                     *
    *                                                              *
    *                                                              *
    *                                                              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    WebSphere Application Server was not properly
    closing file descriptors that were opened.
    

Problem conclusion

  • WebSphere Application Server has been modified to properly
    close opened file descriptors in this case.
    
    The fix for this APAR is currently targeted for inclusion in
    fixpack 6.1.0.21 and 6.0.2.33.  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

    PK65932

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    60I

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-05-12

  • Closed date

    2008-08-26

  • Last modified date

    2008-08-26

  • 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

  • R60A PSY

       UP

  • R61A PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
23 October 2021