F
faris
Guest
I'm having an unusual problem. Apache keeps dying on me between once and 5 times a day.
This is under RedHat 9, with Apache 2.0.40-21.17, Scott's grsec kernel, and with mod_security installed.
I'm getting close to 300 domains on this server (275). I'm wondering if this might be the issue? The problem is that it can happen anything from just once a day to many times a day. BUT, when it does happen more than once, they are clustered together -- they are not spread out. For example, last night, there were 4 problems like this, all within a 20 minute timeframe, from about 00:20 to 00:40.
Luckily I have 4psa's Server Assistant, which monitors Apache and re-starts it when it dies. But I would like to try and figure out what might be causing this. Does anyone have any ideas?
Faris
Code:
/var/log/httpd/error_log has the following for each crash:
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Wed Apr 20 00:36:41 2005] [notice] caught SIGTERM, shutting down
This is under RedHat 9, with Apache 2.0.40-21.17, Scott's grsec kernel, and with mod_security installed.
I'm getting close to 300 domains on this server (275). I'm wondering if this might be the issue? The problem is that it can happen anything from just once a day to many times a day. BUT, when it does happen more than once, they are clustered together -- they are not spread out. For example, last night, there were 4 problems like this, all within a 20 minute timeframe, from about 00:20 to 00:40.
Luckily I have 4psa's Server Assistant, which monitors Apache and re-starts it when it dies. But I would like to try and figure out what might be causing this. Does anyone have any ideas?
Faris