Re: Problems with system locking
Here is a reply I got from a developer:
The query cache never runs global garbage collection without a command. Maybe somebody issued it (FLUSH/RESET QUERY CACHE)?
Another way to get a lot of reorganization work in the
cache: a big/huge number of small requests which are thrown out by:
1) update of table which they use.
2) query cache trying to find space for a big result (can be prevented by setting
query_cache_limit to some reasonable value)
Also you can play with query_cache_min_res_unit variable, it can help
in case of high memory fragmentation.
Regards,
Ingo
Subject
Views
Written By
Posted
11833
April 26, 2006 05:37AM
10475
April 27, 2006 04:36AM
4302
April 27, 2006 07:41AM
3687
May 02, 2006 06:13AM
3696
May 02, 2006 07:49AM
3312
May 02, 2006 10:46AM
3136
May 12, 2006 04:10AM
3268
May 15, 2006 02:57AM
3298
April 28, 2006 03:23AM
2950
May 02, 2006 06:27AM
4501
June 13, 2006 09:59PM
3009
June 14, 2006 08:04AM
3310
June 14, 2006 10:22AM
3071
June 15, 2006 09:26AM
3532
June 15, 2006 11:18AM
3328
June 16, 2006 03:18AM
3426
July 14, 2006 03:52PM
Re: Problems with system locking
3370
July 31, 2006 04:16AM
3324
August 22, 2006 11:34AM
3325
July 19, 2006 04:07AM
Sorry, you can't reply to this topic. It has been closed.
Content reproduced on this site is the property of the respective copyright holders.
It is not reviewed in advance by Oracle and does not necessarily represent the opinion
of Oracle or any other party.