IBM Support

PH37318: CACHING PROXY DOES NOT RELEASE THREAD RESOURCES FOR THREAD USED TO ARCHIVE LOG FILES.

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APAR status

  • Closed as program error.

Error description

  • Caching Proxy does not release thread resources for thread used
    to archive log files. As the result, pthread_create in
    archive_StartThread may fails with rc=11.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of IBM Caching Proxy                  *
    ****************************************************************
    * PROBLEM DESCRIPTION: Caching Proxy can fail to create        *
    *                      threads                                 *
    *                      at midnight used to archive log files.  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Caching Proxy does not release thread resources for threads
    created at midnight to archive log files. This results in
    Caching
    Proxy eventually running out of memory and failing to create
    archiver threads at midnight. The memory leak is slow as it only
    happens once a day, and it will take several months of Caching
    Proxy running without being restarted to occur.
    

Problem conclusion

  • Caching Proxy was updated to release the thread resources for th
    archiver threads.
    
    This fix is targeted for IBM HTTP Server fix packs:
    - 9.0.5.9
    - 8.5.5.21
    

Temporary fix

  • Restart Caching Proxy.
    

Comments

APAR Information

  • APAR number

    PH37318

  • Reported component name

    WEBS CACH PROXY

  • Reported component ID

    5724H8810

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-05-18

  • Closed date

    2021-07-21

  • Last modified date

    2021-07-21

  • 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

    WEBS CACH PROXY

  • Fixed component ID

    5724H8810

Applicable component levels

[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900"}]

Document Information

Modified date:
22 July 2021