Re: Lots of threads in "opening tables" and "closing tables" state

2006-06-27 Thread Christian Hammers
Hallo On Thu, Jun 22, 2006 at 01:54:07PM -0500, Dan Buettner wrote: > Christian, I hope raising the open_files_limit helps (I think it > should). I second Brent's suggestion to enable the thread_cache. > > Please do report back and let us know how you fare. The effect that lots of tables are i

Re: Lots of threads in "opening tables" and "closing tables" state

2006-06-22 Thread Dan Buettner
Christian, I hope raising the open_files_limit helps (I think it should). I second Brent's suggestion to enable the thread_cache. Please do report back and let us know how you fare. Dan Christian Hammers wrote: Hello On Thu, Jun 22, 2006 at 11:28:41AM -0500, Dan Buettner wrote: Christian,

Re: Lots of threads in "opening tables" and "closing tables" state

2006-06-22 Thread Dan Buettner
Christian, can you post the output of SHOW VARIABLES; and SHOW STATUS; please? I see you're servicing 761 queries per second on average, which is pretty good. However, it appears to me your server has performed over 120 million operations (Opens: 120224674) to open tables in 10 days of uptime,

Re: Lots of threads in "opening tables" and "closing tables" state

2006-06-22 Thread Brent Baisley
set global thread_cache_size=30 - Original Message - From: "Christian Hammers" <[EMAIL PROTECTED]> To: "Dan Buettner" <[EMAIL PROTECTED]> Cc: Sent: Thursday, June 22, 2006 1:02 PM Subject: Re: Lots of threads in "opening tables" and "closing tables&

Re: Lots of threads in "opening tables" and "closing tables" state

2006-06-22 Thread Christian Hammers
Hello On Thu, Jun 22, 2006 at 11:28:41AM -0500, Dan Buettner wrote: > Christian, can you post the output of > SHOW VARIABLES; > and > SHOW STATUS; > please? Ok, is below. We're only using MyISAM although InnoDB is activated. > I see you're servicing 761 queries per second on average, which is > p

Lots of threads in "opening tables" and "closing tables" state

2006-06-22 Thread Christian Hammers
Hello We have the problem that on one of our database server (Quad-Dualcore-Hyperthreading Xeon system with 8GB RAM) the database performance suddenly goes down and stays so for a while. There is no significant memory or CPU activity but the Load goes up to 200 which indicates to me that there mu