[mythtv-commits] Ticket #9792: Deadlocked scheduler

MythTV noreply at mythtv.org
Wed Jun 8 15:17:32 UTC 2011


#9792: Deadlocked scheduler
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 Reporter:  warped <warpme@…>      |          Owner:
     Type:  Bug Report - General   |         Status:  new
 Priority:  minor                  |      Milestone:  unknown
Component:  MythTV - General       |        Version:  Trunk Head
 Severity:  medium                 |     Resolution:
 Keywords:                         |  Ticket locked:  0
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Comment (by warped <warpme@…>):

 Ian,

 Thx for this post. Your insights intrigued me so I do quick research on
 bugs.mysql and it seems that query_cache has still unresolved problems.
 Many ppl are suggesting turn-off this feature and what is more important -
 query_cache_size=0 is not enough to completely turn it off as
 query_cache_type is defaulting to 1 - and being non-zero still acquires
 internal DB spin-locks.
 It is highly recommended to set both (query_cache_size and
 query_cache_type) to 0. I do this and will observe system stability. Thx
 again and good luck !

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/9792#comment:9>
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