PM77227: CICS TG fails to shut down after an IPIC connection has been clo sed.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • While a heavy IPIC workload was being run, an IPIC connection
    was closed. CICS TG would not shut down.
    A core dump was taken while CICS TG was unresponsive and this
    showed a "Deadlock detected" message and the deadlocked threads
    were performing IPIC work.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of CICS TG with IPIC connected CICS servers.
    ****************************************************************
    PROBLEM SUMMARY:
    PROBLEM SUMMARY:
    When an IPIC connection is stopped, CICS TG threads could
    become deadlocked.  This prevents the Gateway daemon shutting
    down.
    ****************************************************************
    

Problem conclusion

  • CICS TG has been changed to prevent the reported deadlock.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM77227

  • Reported component name

    CICS TRNS GATE

  • Reported component ID

    5724I8101

  • Reported release

    720

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-11-16

  • Closed date

    2012-12-05

  • Last modified date

    2012-12-05

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

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

    PM78235 PM78244

Fix information

  • Fixed component name

    CICS TRNS GATE

  • Fixed component ID

    5724I8101

Applicable component levels

  • R720 PSY

       UP



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Document information


More support for:

CICS Transaction Gateway
CTG

Software version:

7.2

Reference #:

PM77227

Modified date:

2012-12-05

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