06-02-2017 3:53 PM - edited 02-03-2024 9:35 PM
Hi all,
I'm facing long run for db2 drop table during SUM update.
The SUM phase - MAIN_SHDIMP/SUBMOD_SHDDEL2/PSCRGEN_DROP_SHD_TABLE_EXE
Env:
AIX 7.1.TL4
DB2 9.7 FP9
Part of log file:
ETQ399 Executing SQL script '../var/TSHDDR25.XQL'.
2 ETQ399 Connecting to database 'DB6'.
4 ETQ010 Date & Time: 20170601204444
3 ETQ398 SQL: DROP TABLE "/OSP/T_MDR_SCNT~"
4 ETQ010 Date & Time: 20170601204904
3 ETQ398 SQL: DROP TABLE "/OSP/T_REP_CXTP~"
4 ETQ010 Date & Time: 20170601205922
3 ETQ398 SQL: DROP TABLE "/SAPDMC/LSRVLI~"
4 ETQ010 Date & Time: 20170601210146
3 ETQ398 SQL: DROP TABLE "ADACACHE~"
4 ETQ010 Date & Time: 20170601210526
3 ETQ398 SQL: DROP TABLE "ADR2S2~"
You can see that start time between two "db2 drop" commands are different - 4minutes, 10 minutes, 5 minutes.
It's running in parallel with using 24 DB2 agents.
Any clue what can cause it ? Can there be any problem during updating syscat.tables ?
We updated previous SAP systems in the same ladnscape and there wasn't any issue like this.
Thank you
Br, Jakub
Hi,
maybe the old note
791325 - DB6: Performance with DROP TABLE statements
describes the problem. Is DROP table recovery active for some of your tablespaces.
This can have a huge impact when your history file is large.
Regards
Frank
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Hi, I just saw your 20 day old question. Is it still relevant? Has the problem been solved (and if yes, how)? If not, please sum up the current status.
Best regards, Frank
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