Re: Help! RE: Deadlock on Apache 2.2 Adaptor under high load

2012-07-05 Thread Brook, James
Chuck, thanks for the information. The skill set is a bit of a rare one. Michael, interesting to hear about a deadlock on Linux. Do you mean you were using the 'worker' MPM? You don't have a stack trace by any chance? We may have hit the same bottleneck or deadlock. I have been wondering

Re: Help! RE: Deadlock on Apache 2.2 Adaptor under high load

2012-07-05 Thread Michael Kondratov
I was getting apache seg-faults with a load of around 80 - 100 requests per second. Moved to prefork to fix it. Michael On Jul 5, 2012, at 4:41 AM, Brook, James jbr...@lgi.com wrote: Chuck, thanks for the information. The skill set is a bit of a rare one. Michael, interesting to hear about

Re: Help! RE: Deadlock on Apache 2.2 Adaptor under high load

2012-07-04 Thread Chuck Hill
Hi James, On 2012-06-29, at 9:35 AM, Brook, James wrote: It's probably bad form to keep answering my own mails but no-one had anything to say about this. Are there still people on the list who are familiar with the adaptor internals? This problem is causing us a lot of pain in production.

Re: Help! RE: Deadlock on Apache 2.2 Adaptor under high load

2012-07-04 Thread Michael Kondratov
I am using prefork on Linux. I was getting deadlocks in mpm mode under load. Michael Sent from my iPad On Jul 4, 2012, at 18:09, Chuck Hill ch...@global-village.net wrote: Hi James, On 2012-06-29, at 9:35 AM, Brook, James wrote: It's probably bad form to keep answering my own mails

Re: Help! RE: Deadlock on Apache 2.2 Adaptor under high load

2012-06-30 Thread Ramsey Gurley
Obligatory http://xkcd.com/979/ ;-) On Jun 29, 2012, at 9:35 AM, Brook, James wrote: It's probably bad form to keep answering my own mails but no-one had anything to say about this. Are there still people on the list who are familiar with the adaptor internals? This problem is causing us

Help! RE: Deadlock on Apache 2.2 Adaptor under high load

2012-06-29 Thread Brook, James
It's probably bad form to keep answering my own mails but no-one had anything to say about this. Are there still people on the list who are familiar with the adaptor internals? This problem is causing us a lot of pain in production. Does anyone use the MPM worker module with Apache or are we