[gentoo-user] apache2 just died... why?

[gentoo-user] apache2 just died... why?

[Jarry]

Hi,

Today I found my web-server does not respond to http-requests.
All other services kept running, only apache (2.2.16) just died.
For the first time, in nearly year...

In /var/log/apache2/error_log I have found these messages:

----------------------------------------------
*** about 1 hour since the last normal message, then suddenly ***

[Tue Feb 15 10:54:59 2011] [alert] (11)Resource temporarily unavailable: 
setuid: unable to change to uid: 81
*** 6 times the same message ***

[Tue Feb 15 10:54:59 2011] [alert] Child 1903 returned a Fatal error... 
Apache is exiting!

[Tue Feb 15 10:54:59 2011] [emerg] (43)Identifier removed: couldn't grab 
the accept mutex
*** 20 times the same message ***

[Tue Feb 15 10:54:59 2011] [emerg] (22)Invalid argument: couldn't grab 
the accept mutex
[Tue Feb 15 10:54:59 2011] [emerg] (43)Identifier removed: couldn't grab 
the accept mutex
[Tue Feb 15 10:54:59 2011] [emerg] (43)Identifier removed: couldn't grab 
the accept mutex
[Tue Feb 15 10:54:59 2011] [emerg] (22)Invalid argument: couldn't 
release the accept mutex

[Tue Feb 15 10:55:13 2011] [emerg] (22)Invalid argument: couldn't grab 
the accept mutex
*** about 50 times the same message ***
----------------------------------------------

The last message from /var/log/apache2/access_log is:

72.14.202.80 - - [15/Feb/2011:10:54:58 +0000] "GET 
/sites/all/themes/Chockolade6b/images/Header.jpg HTTP/1.1" 200 64267
74.125.152.84 - - [15/Feb/2011:10:54:59 +0000] "GET 
/sites/all/themes/Chockolade6b/images/Header.jpg HTTP/1.1" 200 64267

Apart from that, nothing. No other traces. Content of my website
is there, nothing has been changed (as far as I can say). I simply
restarted apache, and it is running again (but how long before it
crashes again?)...

Obviously, I'd like to know what happened exactly, and how I could
prevent it happen again in the future. Any help would be greatly
appreciated...

Jarry

(amd64, CFLAGS="-march=athlon64 -O2 -pipe", everything stable)

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Re: [gentoo-user] apache2 just died... why?

[lists]

 On Tue, 15 Feb 2011 16:47:12 +0100, Jarry wrote:
> Hi,
>
> Today I found my web-server does not respond to http-requests.
> All other services kept running, only apache (2.2.16) just died.
> For the first time, in nearly year...
>
> In /var/log/apache2/error_log I have found these messages:
>
> ----------------------------------------------
> *** about 1 hour since the last normal message, then suddenly ***
>
> [Tue Feb 15 10:54:59 2011] [alert] (11)Resource temporarily
> unavailable: setuid: unable to change to uid: 81
> *** 6 times the same message ***
>
> [Tue Feb 15 10:54:59 2011] [alert] Child 1903 returned a Fatal
> error... Apache is exiting!
>
> [Tue Feb 15 10:54:59 2011] [emerg] (43)Identifier removed: couldn't
> grab the accept mutex
> *** 20 times the same message ***
>
> [Tue Feb 15 10:54:59 2011] [emerg] (22)Invalid argument: couldn't
> grab the accept mutex
> [Tue Feb 15 10:54:59 2011] [emerg] (43)Identifier removed: couldn't
> grab the accept mutex
> [Tue Feb 15 10:54:59 2011] [emerg] (43)Identifier removed: couldn't
> grab the accept mutex
> [Tue Feb 15 10:54:59 2011] [emerg] (22)Invalid argument: couldn't
> release the accept mutex
>
> [Tue Feb 15 10:55:13 2011] [emerg] (22)Invalid argument: couldn't
> grab the accept mutex
> *** about 50 times the same message ***
> ----------------------------------------------
>
> The last message from /var/log/apache2/access_log is:
>
> 72.14.202.80 - - [15/Feb/2011:10:54:58 +0000] "GET
> /sites/all/themes/Chockolade6b/images/Header.jpg HTTP/1.1" 200 64267
> 74.125.152.84 - - [15/Feb/2011:10:54:59 +0000] "GET
> /sites/all/themes/Chockolade6b/images/Header.jpg HTTP/1.1" 200 64267
>
> Apart from that, nothing. No other traces. Content of my website
> is there, nothing has been changed (as far as I can say). I simply
> restarted apache, and it is running again (but how long before it
> crashes again?)...
>
> Obviously, I'd like to know what happened exactly, and how I could
> prevent it happen again in the future. Any help would be greatly
> appreciated...
>
> Jarry
>
> (amd64, CFLAGS="-march=athlon64 -O2 -pipe", everything stable)

 see http://www.issociate.de/board/post/51105/Apache_mutex_error??.html

 it may contain some hints regarding this problem.

 HTH