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Problem IC85712
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Status: Closed |
DB2TRCSTARTUPSIZE HAS NO EFFECT - PERF ISSUE WITH CLIENTS, IF NO'DB2TRC ALLOC' ISSUED ON AIX |
| product: |
DB2 CONNECT / DB2CONNCT / 970 - DB2 |
| Problem description: |
Application running on a DB2 client performs poorly due to low
level semget calls issued by DB2
https://www-304.ibm.com/support/docview.wss?uid=swg21209523
We found the same issue on AIX for instance less clients. Poor
performance. Setting db2trcStartupSize in db2dsdriver.cfg file
has no effect. Because, after issuing a 'db2trc alloc' the
performance was as good as with the instance based client. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* 1) Non-instance based clients on AIX. *
* 2) Remote instance based clients on AIX *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* upgrade to v97fp7 or later releases. *
**************************************************************** |
| Local Fix: |
issue "db2trc alloc" to fix the performance issue. |
| available fix packs: |
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
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| Solution |
db2_v97fp7 fixes this issue. |
| Workaround |
run "db2trc alloc" |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC85794
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 03.08.2012
20.10.2012
20.10.2012 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP7
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.7
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