PM52212: ABEND04E RC00E508A1 DSNVSRX +298C DURING FAST LOG APPLY OR THREADS HUNG IN DSNITSKS

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • During RECOVER Utility Fast Log Apply Phase, DB2 took an abend
    RC00E508A1 during suspend / resume processing in DSNVSRX + 298C.
    Also FLA child task threads were suspended in DSNITSKS and never
    resumed.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of DB2                             *
    ****************************************************************
    * PROBLEM DESCRIPTION: ABEND04E RC00E508A1 DSNVSRX +298C       *
    *                      DURING FAST LOG APPLY OR THREADS HUNG   *
    *                      IN DSNITSKS.                            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During Data Recovery, when Fast Log Apply (FLA) is active, it is
    possible that at the end of recovery job may be suspended due to
    improper serialization between the parent FLA task and child FLA
    tasks. Also in some instance, DB2 Agent service routine may
    detect a protocol violation condition which issues reason code
    RC00E508A1. This APAR will reduce the timing window between all
    the FLA child tasks and parent FLA task to avoid long suspension
    of parent FLA task and/or improves the serialization between
    the FLA tasks.
    Additional symptoms:
    PDH1,ABND=04E-00E50705,U=SYSOPR  ,M=(N),C=910.ASMC
    -DSNVICEU,M=DSNVEUS2,LOC=DSNVGEPL.DSNVEUS2+0790
    The abend indicates a latch protocol violation in EUS
    while still holding the DMCDBAC latch.
    V10 - REORG TABLESPACE SHRLEVEL CHANGE COPY YES LOG NO
    DRAIN ALL abends with ABEND0C4 in DSNURMPG+x'02B8'
    when parallel transactions are inserting rows into the same
    table space being reorganized.
    

Problem conclusion

  • DB2 data recovery FLA function is modified to avoid recovery job
    hang condition and/or improve serialization between FLA tasks.
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    PM52212

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-11-14

  • Closed date

    2012-02-09

  • Last modified date

    2012-07-26

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

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

    UK76245 UK76246

Modules/Macros

  •    DSNIGTSK DSNITSKS
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UK76245

       UP12/03/02 P F203

  • R910 PSY UK76246

       UP12/03/02 P F203

Fix is available

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Document information


More support for:

DB2 for z/OS

Software version:

910

Reference #:

PM52212

Modified date:

2012-07-26

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