Re: Re: apache service interruption

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You can always compile from source ;)
What version of Apache are you running?

On 07/29/2013 02:59 AM, Grant wrote:
Was it just an IP exhausting the apache service with too many connections? What do you see in the access logs? I use OSSEC HIDS on my apache servers to mitigate this.

In the access log I see the same IP made many requests during the
service interruption and I think that exhausted the apache service.
It looks like there isn't a Gentoo ebuild for OSSEC HIDS.  Is there
another way to prevent this sort of thing?

- Grant


My server has 4GB RAM and uses nginx as a reverse proxy to apache. A little while ago my website became inaccessible for about 30 minutes. I checked my munin graphs and it looks like apache processes spiked to about 29 during this time which is many times greater than usual. I have MaxClients at 30 and the error log verifies that MaxClients was not reached. The strange part is system disk latency shows a spike during the interruption which is only very slightly greater than other spikes which did not interrupt service. System CPU, memory, and swap
usage don't show anything interesting at all.

Does this make sense to anyone?  Should I decrease MaxClients?

- Grant

I've looked over my access_log and I can see there is a particular IP
which was making many requests during the interruption.  Since munin
does not show there was an excessive amount of memory or CPU usage,
lowering MaxClients won't help?

- Grant

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