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PI29028: WMQ V710 - ABN=5C6-00C93C00 RECEIVED DURING RESTART/RECOVERY WHEN A PAGE SET IS EXPANDED.

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APAR status

  • Closed as program error.

Error description

  • ABEND5C6-00C93C00 is received during restart/recovery when a
when a page set is expanded and is then taken offline.

At startup the queue-manager should detect that the page set
needs expanding before attempting forward recovery, but this
isn't happening.

Local fix

  • n/a

Problem summary

  • ****************************************************************
* USERS AFFECTED: All users of WebSphere MQ Version 7          *
*                 Release 1 Modification 0.                    *
****************************************************************
* PROBLEM DESCRIPTION: After a backup pageset has been         *
*                      allocated and the queue manager is      *
*                      restarted 5C6-00C93C00 abends are       *
*                      generated in CSQIEXP2 or/and CSQISCP5   *
*                      or/and other. The queue manager can     *
*                      terminate.                              *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
During queue manager restart after an old page set (backup) has
been allocated, CSQIREXT should expand the page set to allocate
the space required to restore all pages during forward log
recovery.

In this case, the page set expansion did not happen because the
queue manager was previously restarted with the page set offline
causing the loss of the high page number in the page set.
Therefore CSQIREXT assumes that page set expansion is not
required, causing media recovery of the page set to be performed
incorrectly, resulting in various abends during subsequent
processing.

Problem conclusion

  • The page set high page number is always saved in checkpoint
records in the log even if the page set is offline.
100Y
CSQIRRED
CSQPECKW

Temporary fix

  • *********
* HIPER *
*********

Comments

  • ×**** PE15/08/04 FIX IN ERROR. SEE APAR PI46239  FOR DESCRIPTION

APAR Information

  • APAR number

    PI29028

  • Reported component name

    WMQ Z/OS V7

  • Reported component ID

    5655R3600

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-11-06

  • Closed date

    2015-01-21

  • Last modified date

    2015-08-17

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

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

    PI31416 UI24058

Modules/Macros

  • CSQIRRED CSQPECKW

Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID

    5655R3600

Applicable component levels

  • R100 PSY UI24058

       UP15/02/04 P F502 ¢

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

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Document Information

Modified date:
17 August 2015

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