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Problem IC90894
|
Status: Closed |
POSSIBLE HANG IN INDEX CLEANUP LOGIC WHEN MULTIPLE ASYNCHRONOUS CLEANUP OPERATIONS ARE ACTIVE ON THE SAME TABLE |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
If a partitioned table has a global index and multiple
partitioned are detached at once, then the Asynchronous
Background Processing
will start a number of db2taskp edus to perform the Asynchronous
Index Cleanup.
It is possible that these edus will start contending with each
other over a particular area of the index and they get stuck in
an endless loop.
Taken call stacks repeatedly should show a pattern where these
stacks can be seen :
sqloWaitEDUWaitPost
sqlplWaitOnWP
sqlplMakeNewRequestNonSD
sqlplrq
sqlilidx
sqliTryToMerge
sqliCleanupKeysOnLeaf
procLeaf2Del
... |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All users *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 10.1.0.3. *
**************************************************************** |
| Local Fix: |
temporarily limit the number of ABP tasks to 1 by setting :
db2set DB2_PMODEL_SETTINGS=MAX_BACKGROUND_SYSAPPS:1 |
| available fix packs: |
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
|
| Solution |
The problem is first fixed in DB2 version 10.1.0.3. |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC95254
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 15.03.2013
01.10.2013
01.10.2013 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.3
|
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| 10.1.0.3
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