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Verify OVERFLOWLOGPATH is valid at the BEGINNING and allow override in RESTORE DATABASE command.

When restoring a DB2/LUW database Db2 currently restores the database and then abneds if the OVERFLOWLOGPATH is invalid. A restore can take many hours and having the restore fail at the end of the restore wastes all those hours.

  • Avatar32.5fb70cce7410889e661286fd7f1897de Guest
  • Aug 21 2020
  • Needs more information
Who would benefit from this IDEA? All database users that configure OVERFLOWLOGPATH to non-identical folders.
How should it work?

Verify the OVERFLOWLOGPATH is valid at the beginning of the restore as LOGFILEPATH is processed. Also allow an override parm for this valiable in the RESTORE database command.

Idea Priority High
Priority Justification Could be preventing database restores right now.
Client Name COUNTRY Financial
  • Attach files
  • Avatar40.8f183f721a2c86cd98fddbbe6dc46ec9
    Guest commented
    10 Sep 03:22pm

    V11.5

  • Admin
    Michael Roecken commented
    1 Sep 09:52pm

    Hi. Definitely understand the scenario, so thanks. What Db2 Version have you noticed this happening on?

  • Avatar40.8f183f721a2c86cd98fddbbe6dc46ec9
    Guest commented
    28 Aug 06:58pm

    I was restoring databaseTDB1 from server A into TDB2 and TDB3 on server B. OVERFLOWLOGPATH on TDB1 was set to /san00/overflowlopgath/TDB1/. The restore of TDB2 from the backup of TDB1 was successful. The restore of TDB3 from the backup of TDB1 ran all the way to the end (1.6TB backup) and failed after several hours with a very cryptic "invalid path" message that did not mention OVERFLOWLOGPATH.

    The problem was that TDB2 had initialized the OVERFLOWLOGPATH directories with files and the subsequent restore of TDB3 abended becuase the OVERFLOWLOGPATH was already in use by another database (TDB2).

    I suspect that if I did not have a /san00 LUN on the server I was restoring the database on there would be no way to restore the database as the OVERFLOWLOGPATH would fail to allocate and the restore would abend - again at the END of the restore after several hours.

    The option to override the OVERFLOWLOGPATH on the restore as we can currently override the LOGFILEPATH via parms on the restore would be ideal.

    And the restore should abend at the very beginning if OVERFLOWLOGPATH is going to be a problem.

  • Admin
    Michael Roecken commented
    27 Aug 11:07pm

    Hi. Can you please provide a specific scenario that affected you and you would like to see an improvement in. From your description I cannot make out exactly what scenario affected you and I was not able to reproduce based on the info provided.

    Thanks.


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