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IT24524: RARE TIMING ISSUE MAY CAUSE INSTANCE CRASH ON BACKUP COMPLETION

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Instance crash can occur due to timing issue with the ending
    db2med process after the completion of a backup.
    
    Stack will show as being similar to:
    _Z28sqloDiagnoseFreeBlockFailureP8SMemFBlkb
    sqlofmblkEx
    _Z22sqleCleanUtilFakeAgentP8sqeAgent
    _Z32sqluMCStartBackupMediaControllerPcj
    sqloEDUEntry
    
    Cleaned up stack would be:
    sqloDiagnoseFreeBlockFailure(SMemFBlk*, bool)
    sqlofmblkEx
    sqleCleanUtilFakeAgent(sqeAgent*)
    sqluMCStartBackupMediaController(char*, unsigned int)
    sqloEDUEntry
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Db2 Users                                                *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.1.4.4 or later.                            *
    ****************************************************************
    

Problem conclusion

  • First fixed in Db2 11.1.4.4
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT24524

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-03-23

  • Closed date

    2018-12-18

  • Last modified date

    2018-12-18

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

    IT24232

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

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RB10 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
18 December 2018