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JR35868: RUNNING BATCH JOB THAT DOES A CLOSE WITH NO FILE VARIABLE CAUSESTHE T30 SEMAPHORE TO LOCK. IMPORTING DSX FILES DO THE SAME THING

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APAR status

  • Closed as program error.

Error description

  • Btach program does an openpath on a hashed file and does a close
    without a file varaible. This worked fine in 751A but at 8.1 on
    solaris it is causing DataStage to appear to hang. The issue is
    that it is leaving the T30 semaphore locked. If we run
    UNLOCK T30LOCK SEMAPHORE
    It allows the system to continue to run. Customer also sees the
    same issue when importing jobs.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    phantom and dsapi_slave executables can take SIGBUS faults on
    Solaris at Information Server version 8.1.
    ****************************************************************
    PROBLEM DESCRIPTION:
    phantom and dsapi_slave executables can take SIGBUS faults at
    release 8.1.0.x on the Solaris platform.  Additionally the fault
    occurs while the T30 semaphore is held and results in hangs of
    new phantom and dsapi_slave processes trying to acquire the same
    semaphore.
    ****************************************************************
    RECOMMENDATION:
    A Solaris patch has been produced which will work on both
    8.1.0.0 and 8.1.0.1.
    ****************************************************************
    

Problem conclusion

  • On Solaris, ensure proper memory alignment in functions which
    acquire the T30 semaphore to avoid SIGBUS faults.
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR35868

  • Reported component name

    INFO SRVR PLATF

  • Reported component ID

    5724Q3612

  • Reported release

    810

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-03-09

  • Closed date

    2010-03-21

  • Last modified date

    2010-03-21

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

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

Modules/Macros

  • SERVER
    

Fix information

  • Fixed component name

    INFO SRVR PLATF

  • Fixed component ID

    5724Q3612

Applicable component levels

  • R810 PSN

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSZJPZ","label":"InfoSphere Information Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
12 October 2021