503 error after 36 seconds

[Sindre]

I have a problem where certain pages will not load. They seem to load for 36 seconds, and then boom.. 503 error and this in the logs:

2013-08-30 19:12:21.706 INFO [84.209.71.211:56635-0#APVH_domain.com] connection to [uds://tmp/lshttpd/lsphp5.sock.91919] on request #0, confirmed, 1, associated process: -1, running: 0, error: Connection reset by peer!
2013-08-30 19:12:21.706 NOTICE [84.209.71.211:56635-0#APVH_domain.com] request already in process for 36 seconds, fail with 503
2013-08-30 19:12:21.706 NOTICE [84.209.71.211:56635-0#APVH_domain.com] oops! 503 Service Unavailable
2013-08-30 19:12:21.706 NOTICE [84.209.71.211:56635-0#APVH_domain.com] Content len: 0, Request line: 'GET /entertainment.html HTTP/1.1'
2013-08-30 19:12:21.706 INFO [84.209.71.211:56635-0#APVH_domain.com] Cookie len: 292, __atuvc=2%7C35; adminhtml=4640ed24f51d3fa01264cb7bd882325e; frontend=9b12f9a22cb35e4d849db607ab846b99; __utma=27957153.1115337076.1377892608.1377901357.1377904081.4; __utmb=27957153.1.10.1377904081; __utmc=27957153; __utmz=27957153.1377892608.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)


I am running CloudLinux with limits 1 full CPU core and 1024MB RAM, so don't think that is the problem. In LiteSpeed, soft/hard memory limits are not set for the external application.

Any advise?

 

[NiteWave]

please check

External App -> lsphp5 -> Initial Request Timeout (secs)

if it matches the 36 seconds.

 

[Sindre]

I already tried to increase the Initial Request Timeout.

For what it matters, this error only happens after I enabled the "Flat Catalog Category" feature on a Magento site if you are familiar with it. The CPU of the lsphp5 process stays on 100% and then the application crashes after 30-40 seconds with 503 error. No other error in stderr.log.

I already contacted CloudLinux and they say it is a Litespeed issue.

 

[dethfire]

I'm getting this problem but with rebuilding attachments in XF. The seconds it takes to throw the 503 changes. Anywhere from 70-300 seconds. My IRT is set to 300. So why would it crash at say 70?