Bug #36747 Allocating a large query cache is not deterministic
Submitted: 16 May 2008 2:08 Modified: 17 Jul 2008 11:07
Reporter: Davi Arnaut (OCA) Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Tests Severity:S3 (Non-critical)
Version:6.0,5.4 OS:Any
Assigned to: Assigned Account CPU Architecture:Any
Tags: disabled

[16 May 2008 2:08] Davi Arnaut 
Description:
Setting query_cache_size to larger values might fail depending on the memory pressure being put on the system. This can be seen on pushbuild as the test case query_cache_size_basic tries to allocate a +3GB query cache, which succeeds in some machines and fails in others.

How to repeat:
Sporadic failures of test cases query_cache_size_basic_32 and query_cache_size_basic_64 on PB.
[16 May 2008 6:27] Georgi Kodinov 
Duplicate of Bug#36733
[19 May 2008 16:27] Georgi Kodinov 
Not a duplicate
[17 Jul 2008 11:00] Horst Hunger 
As I have not found that bug I reported another one Bug#38164, for which a patch is queued. So it is a duplicate of that bug.
[17 Jul 2008 11:09] Horst Hunger 
It is not a duplicate, as that bug is for "query_prealloc_size".
[31 Aug 2009 17:15] Sergei Golubchik 
transaction_prealloc_size_basic_32 and transaction_prealloc_size_basic_64 also doing this