PM31807: IRLM SUPPORT FOR DB2 ZPARM DEL_CFSTRUCTS_ON_RESTART(PM28925) TO DELETE IRLM LOCK STRUCTURE ON GROUP RESTARTS.

A fix is available

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APAR status

  • Closed as new function.

Error description

  • When DB2 zparm DEL_CFSTRUCTS_ON_RESTART(PM28925) is set, IRLM
    will attempt to delete lock structure before connecting to it
    during DB2 restart. The lock structure could be deleted if there
    are no active connections to it. IRLM will issue DXR185I message
    if it was able to issue IXLFORCE successfully against the lock
    structure.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All HIR2230 (IRLM230) and DB2 v10 users      *
    *                 datasharing SYSPLEXDS.                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: IRLM support for new DB2 v10 zparm      *
    *                      to delete the IRLM lock structure prior *
    *                      to initiating group restart by DB2.     *
    ****************************************************************
    * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
    ****************************************************************
    There are times such as during disaster recovery when the
    CF has stale information which will cause invalid data to be
    present after recovery if not cleared.  To enable the user
    to provide a sure and rapid method for guaranteeing this is
    done in known situations, a new DB2 V10 ZPARM is created.
    This zparm, DEL_CFSTRUCTS_ON_RESTART, enables DB2 to tell
    IRLM during startup, to force the structure and failed
    connection data.
    

Problem conclusion

Temporary fix

Comments

  • This APAR provides support for DB2 APAR PM28925 to allow
    deletion of IRLM lock structure when requested during a DB2
    group restart event. IRLM will attempt to delete the lock
    structure prior to connecting to it when the new zparm
    DEL_CFSTRUCTS_ON_RESTART is specified, and DB2 uses it.
    IRLM will issue IXLFORCE against the lock structure to
    de-allocate the structure and force any failed-persistent
    connections to the structure at that time. This will ensure that
    the group allocates and connects to a new lock structure when a
    group restart is desired.  This IXLFORCE will be successful only
    for the first member to connect to the group since it requires
    no active connection be present. IRLM will issue a new
    message, MSGDXR185I if the force de-allocation of the lock
    structure is successful.
      DXR185I irlmnm IXLFORCE SUCCESSFUL FOR LOCK STRUCTURE LOCK1
    XES also issues IXC579I for the de-allocation of the
    structure against which IXLFORCE was issued.
    

APAR Information

  • APAR number

    PM31807

  • Reported component name

    IRLM V2

  • Reported component ID

    569516401

  • Reported release

    230

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-02-02

  • Closed date

    2011-03-18

  • Last modified date

    2012-02-20

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

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

    UK65920

Modules/Macros

  •    DXRRHT   DXRRLIPL DXRRL040 DXRRL210 DXRRL710
    

Fix information

  • Fixed component name

    IRLM V2

  • Fixed component ID

    569516401

Applicable component levels

  • R230 PSY UK65920

       UP11/04/03 P F103

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


More support for:

IRLM

Software version:

230

Reference #:

PM31807

Modified date:

2012-02-20

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