domain causing many 503 error restart

[fastuning]

Hi,

i have some days getting many email with 503 error restart.

i saw in the log the next:

2013-07-27 18:37:19.874 INFO [66.249.72.230:50841-0#APVH_descomposicion.es] connection to [/tmp/lshttpd/APVH_descomposicion.es_Suphp.sock.885] on request #0, confirmed, 1, associated process: 24327, running: 0, error: Connection reset by peer!
2013-07-27 18:37:19.874 NOTICE [66.249.72.230:50841-0#APVH_descomposicion.es] Max retries has been reached, 503!
2013-07-27 18:37:19.874 INFO Process: 24327, killed by signal: 11, core dump: 0
2013-07-27 18:37:19.874 NOTICE [66.249.72.230:50841-0#APVH_descomposicion.es] oops! 503 Service Unavailable
2013-07-27 18:37:19.874 NOTICE [66.249.72.230:50841-0#APVH_descomposicion.es] Content len: 0, Request line: 'GET /robots.txt HTTP/1.1'
2013-07-27 18:37:19.874 NOTICE [66.249.72.230:50841-0#APVH_descomposicion.es] Redirect: #1, URL: /index.php
2013-07-27 18:37:19.874 INFO [66.249.72.230:50841-0#APVH_descomposicion.es] File not found [/home/descompo/public_html/503.shtml]
2013-07-27 18:37:19.874 INFO [66.249.72.230:50841-0#APVH_descomposicion.es] abort request..., code: 4
2013-07-27 18:37:20.110 INFO [APVH_descompo_Suphp:] PID: 20368, add child process pid: 24332, procinfo: 0x17b0a650
2013-07-27 18:37:20.125 INFO [APVH_satecsis_Suphp:] PID: 20368, add child process pid: 24334, procinfo: 0x18b54ed0
2013-07-27 18:37:20.229 INFO [66.249.72.230:44159-0#APVH_descomposicion.es] connection to [/tmp/lshttpd/APVH_descomposicion.es_Suphp.sock.885] on request #0, confirmed, 1, associated process: 24332, running: 0, error: Connection reset by peer!
2013-07-27 18:37:20.232 INFO [66.249.72.230:44159-0#APVH_descomposicion.es] PID: 20368, add child process pid: 24335, procinfo: 0x17b0a650
2013-07-27 18:37:20.232 INFO Process: 24332, killed by signal: 11, core dump: 0
2013-07-27 18:37:20.232 INFO Pid: 24332 does not associate with any external app
2013-07-27 18:37:20.346 INFO [66.249.72.230:44159-0#APVH_descomposicion.es] connection to [/tmp/lshttpd/APVH_descomposicion.es_Suphp.sock.885] on request #0, confirmed, 1, associated process: 24335, running: 1, error: Connection reset by peer!
2013-07-27 18:37:20.346 NOTICE [66.249.72.230:44159-0#APVH_descomposicion.es] Max retries has been reached, 503!
2013-07-27 18:37:20.346 INFO Process: 24335, killed by signal: 11, core dump: 0
2013-07-27 18:37:20.346 NOTICE [66.249.72.230:44159-0#APVH_descomposicion.es] oops! 503 Service Unavailable
2013-07-27 18:37:20.346 NOTICE [66.249.72.230:44159-0#APVH_descomposicion.es] Content len: 0, Request line: 'GET /en-breves-estamos-de-vuelta/?replytocom=16777 HTTP/1.1'
2013-07-27 18:37:20.346 NOTICE [66.249.72.230:44159-0#APVH_descomposicion.es] Redirect: #1, URL: /index.php
2013-07-27 18:37:20.346 INFO [66.249.72.230:44159-0#APVH_descomposicion.es] File not found [/home/descompo/public_html/503.shtml]
2013-07-27 18:37:20.346 INFO [66.249.72.230:44159-0#APVH_descomposicion.es] abort request..., code: 4

always have a restart caused by that domain. that domain have a wordpress

how can i solve it?

 

[NiteWave]

503 error due to php crash. maybe the wordpress install some special plugins which may crash the php. you can try disable plugins one by one, see if it will get much better or 503 error completely gone.

also please check what php extensions are used by the php.
can get a list by
#grep extension php.ini

 

[wanah]

Are you running CloudLinux on this server ?

If so make sure that CloudLinux's entry process limit for this account is higher than litespeed's and that Cloudlinux's CPU average is not high for this account as Litespeed is not compatible with Cloudlinux's 508 ressource limit reached errors yet.