PM84113: Client connections that time-out might prevent ConnectionManager threads and IPIC sessions being released

A fix is available

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APAR status

  • Closed as program error.

Error description

  • A Gateway daemon configured to use the dropworking and
    idletimeout parameters might not free ConnectionManager threads
    and IPIC sessions when a client connection is timed out. The
    value of the ECI timeout parameter does not affect the release
    of the resources.
    

Local fix

  • Remove the dropworking parameter to prevent the purge of in-use
    connections
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of CICS TG using IPIC connected    *
    *                 CICS servers and the dropworking             *
    *                 parameter on protocol handler definitions.   *
    ****************************************************************
    * PROBLEM DESCRIPTION: A Gateway daemon configured to use the  *
    *                      dropworking and idletimeout parameters  *
    *                      might not free ConnectionManager        *
    *                      threads and IPIC sessions when a client *
    *                      connection is timed out. The            *
    *                      value of the ECI timeout parameter does *
    *                      not affect the release of the           *
    *                      resources.                              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When using XA or extended mode ECI requests a client connection
    that times-out might prevent ConnectionManager threads and IPIC
    sessions from being released.
    

Problem conclusion

  • CICS TG has been corrected to free the ConnectionManager thread
    and associated IPIC session when an in-use client connection
    has timed out and the dropworking parameter is specified on a
    protocol handler definition.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM84113

  • Reported component name

    CTG V8 FOR Z/OS

  • Reported component ID

    5655W1000

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-03-05

  • Closed date

    2013-07-05

  • Last modified date

    2013-08-02

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

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

    PM88393 PM88727 UK94261 UK94262

Modules/Macros

  •    CTG00201 CTG00204 CTG00585
    

Fix information

  • Fixed component name

    CTG V8 FOR Z/OS

  • Fixed component ID

    5655W1000

Applicable component levels

  • R800 PSY UK94261

       UP13/07/17 P F307

  • R810 PSY UK94262

       UP13/07/17 P F307

Fix is available

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Document information


More support for:

CICS Transaction Gateway
CTG

Software version:

8.0

Reference #:

PM84113

Modified date:

2013-08-02

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