[mythtv-commits] Ticket #12314: mythbackend deadlocked during record, EIT scan and reschedule. CPU goes to 100%.

MythTV noreply at mythtv.org
Wed Dec 17 17:01:19 UTC 2014


#12314: mythbackend deadlocked during record, EIT scan and reschedule. CPU goes to
100%.
----------------------------------------+------------------------
 Reporter:  Paul Netherwood <paul@…>    |          Owner:
     Type:  Bug Report - Hang/Deadlock  |         Status:  new
 Priority:  major                       |      Milestone:  0.27.5
Component:  MythTV - General            |        Version:  0.27.4
 Severity:  medium                      |     Resolution:
 Keywords:  deadlock 100% CPU           |  Ticket locked:  0
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Comment (by Paul Netherwood <paul@…>):

 I think I have successfully traced the problem. The time spent in place in
 the scheduler was down to a sql statement that was creating a temporary
 table. My sql database had grown significantly since I first setup the
 database in 2006 and a retuning of mysql was necessary. After running
 mysqltuner.pl and a few other tweaks I was able to bring the place time
 down from 200+ seconds to 1-2 seconds. Since then there have been no
 occurrences of the lockup.

 Please close the ticket.

 Thanks

--
Ticket URL: <https://code.mythtv.org/trac/ticket/12314#comment:7>
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