APAR status
Closed as program error.
Error description
Performance degrades when many DataStage Server jobs using hashed file stages are run simultaneously and appears as high Kern% time when compared to User%. The issue was observed while migrating from DataStage 7.5.X to Information Server 8.7 on AIX.
Local fix
Problem summary
Performance of server jobs with hashed file stages decreased in the 64bit port of AIX where semop() and a semaphore array is now used.
Problem conclusion
Revert back to the use of internal code and space in the disk shared memory segment for semaphore processing on AIX.
Temporary fix
Comments
APAR Information
APAR number
JR42907
Reported component name
WIS DATASTAGE
Reported component ID
5724Q36DS
Reported release
870
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-05-22
Closed date
2012-06-21
Last modified date
2012-06-21
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WIS DATASTAGE
Fixed component ID
5724Q36DS
Applicable component levels
R870 PSY
UP
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Document Information
Modified date:
21 June 2012