Server not responding to SSH and HTTP but ping works

Posted by yes123 on Server Fault See other posts from Server Fault or by yes123
Published on 2011-03-08T15:00:38Z Indexed on 2011/03/08 16:11 UTC
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Hello guys,

I requested an hard reboot because none of ssh and http worked. Ping worked normally.

Which logs should i check to understand what was the problem?

Thanks! (debian 6 on lamp)

Edit: my memory and swap:

Mem:   4040068k total,  1114920k used,  2925148k free,   109212k buffers
Swap:  1051384k total,        0k used,  1051384k free,   283820k cached

4 GB ram

(and more than 1TB of HDD)

The cause is from 2 days ago:

look how the usage of swap goes +60% in less than 10hours

My control panel reports this as top 5 memory usage process:

If every apache2 process is 190MB large that sux because IF i do TOP i have 262 sleeping process most of them are apache2!

My apache mpm_prefork settings are:

<IfModule mpm_prefork_module>
    StartServers          5
    MinSpareServers       5
    MaxSpareServers      10
    ServerLimit      1500
    MaxClients            1500
    MaxRequestsPerChild   2000
</IfModule>

KeepAlive On


MaxKeepAliveRequests 100


KeepAliveTimeout 4

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