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IZ10098: ALTER TABLESPACE FAILS WITH LOCKTIMEOUT DURING ONLINE BACKUP

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • An ALTER TABLESPACE issued against a tablespace with AUTORESIZE
    YES returns SQL0911, rc 68 (locktimeout) while a concurrent
    online backup is running.
    
    The SQL0911 is returned right away ignoring the LOCKTIMEOUT
    value because the online backup is not compatible with
    AUTORESIZE tablespaces since the online backup requests the
    AUTORESIZE lock in SHARE mode when processing that specific
    tablespace and the ALTER TABLESPACE tries to get this lock in
    EXCLUSIVE mode.
    
    This APAR will change Online backup to acquire AUTORESIZE locks
    for all the tablespaces at the beginning of the online backup
    and release the lock for the specific tablespace which Online
    backup has completed.  So as the online backup proceeds, more
    and more AUTORESIZE locks will be freed.  This will allow
    ALTER TABLESPACES to complete for tablespaces who have had their
    locks released by online backup.
    

Local fix

  • (1)If the tablespace doesn't need to be set with AUTORESIZE yes,
       then this problem will not occur.
    (2)If the ALTER is done after the backup completes, then this
       problem doesn't occur.
    

Problem summary

  • See error description.
    

Problem conclusion

  • First Fixed in DB2 Version 9.1 fixpack 6
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ10098

  • Reported component name

    DB2 CEE AIX

  • Reported component ID

    5765F3000

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2007-12-05

  • Closed date

    2008-10-28

  • Last modified date

    2008-10-28

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

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

    IZ10113 IZ11135

Fix information

  • Fixed component name

    DB2 CEE AIX

  • Fixed component ID

    5765F3000

Applicable component levels

  • R910 PSY

       UP

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Document Information

Modified date:
28 October 2008