[rt-users] RT hangs with 'SELECT GET_LOCK' slow query log entries

[Roy El-Hames]

Torsten;
One other thing ..how big is your sessions table, do you clean it 
regularly (delete old sessions)
Roy

Torsten Brumm wrote:
> At this moment, we have round about 500.000 Tickets in 700 Queues, 
> 26.000Users
>
> Torsten
>
> 2006/12/5, Eric J. Feldhusen <efeldhusen.lists at gmail.com>:
>>
>> Just curious, how many tickets are in your RT installation?
>>
>> Torsten Brumm wrote:
>> > But with MySQL 4.12 and apache 2 with FastCGI
>> >
>> > 2006/12/5, Steve Ison <si202 at cam.ac.uk <mailto:si202 at cam.ac.uk>>:
>> >
>> >     Hello,
>> >
>> >     My RT installation (3.6.1, MySQL 5, Apache 1.3, mod_perl 1.9,
>> >     DBIx::SearchBuilder v1.45) has slowed considerably as the 
>> number of
>> >     tickets has grown. In the MySQL slow query log I see:
>> >
>> >     # Time: 061205 11:52:19
>> >     # User at Host: rt_user[rt_user] @ localhost []
>> >     # Query_time: 181  Lock_time: 0  Rows_sent: 1  Rows_examined: 0
>> >     SELECT GET_LOCK('Apache-Session-b59f829ebcd37237783322425399eeb2',
>> >     3600);
>> >
>> >     While this is happening apache just spins using all the cpu.
>> >
>> >     While trawling back the the mailing-list archives I noticed others
>> have
>> >     had this problem, but I can't find any mention of a solution. Am I
>> >     missing
>> >     it or is this an ongoing problem?
>>
>> -- 
>> Eric Feldhusen
>> Network Administrator    http://www.remc1.org
>> eric at remc1.org
>> PO Box 270              (906) 482-4520  x239
>> 809 Hecla St            (906) 482-5031 fax
>> Hancock, MI  49930      (906) 370 6202 mobile
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