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From "Ralf Glauberman" <rglauber...@michaeli-gymnasium.de>
Subject Re: [users@httpd] Apache eventually stops responding?
Date Sat, 06 Nov 2004 13:29:31 GMT
would be usefull to get a full status-listing, including the info wich file 
is beeing send and to whom, try to get this one.

----- Original Message ----- 
From: "Milan Andric" <mandric@eecs.berkeley.edu>
To: <users@httpd.apache.org>
Sent: Saturday, November 06, 2004 1:30 AM
Subject: Re: [users@httpd] Apache eventually stops responding?


> On Fri, Oct 29, 2004 at 10:31:22AM -0500, Scott Horowitz wrote:
>> Okay, the server once again crawled to a halt and I managed to get the
>> server-status output (even though it took ~10 minutes to reply to my ssh
>> command).
>>
>>    Current Time: Friday, 29-Oct-2004 10:09:10 CDT
>>    Restart Time: Friday, 29-Oct-2004 01:56:59 CDT
>>    Parent Server Generation: 0
>>    Server uptime: 8 hours 12 minutes 11 seconds
>>    Total accesses: 156028 - Total Traffic: 2.1 GB
>>    CPU Usage: u619.92 s73.75 cu0 cs0 - 2.35% CPU load
>>    5.28 requests/sec - 73.9 kB/second - 14.0 kB/request
>>    234 requests currently being processed, 16 idle servers
>> WWWWWWW_WWWWWWWWWWWWWWWWWWWWWLWW_WWWWWRWWWWRWWWWWWWLWWWRWW_RWRWW
>> WWWWWWWWWR__WL_WWWWWWLWWWWWWWWWWWWWWWWLWWWWWWWWWWWWWWWWWLWLWWWRW
>> WWWWWWWWWWWWWWWWWWLWWWLWWWLWWWWWWWWLWWWWWW_WWWW_WWWW_W_WWWWWWWWW
>> WWW_WWWWWWWWW_WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW_WWW___W......
>>
>> I assume there is something wrong that there are so many processes 
>> "stuck"
>> in sending reply, correct? What could be the possible reasons for this..
>> Config settings, hardware..?
>
> It's very odd to see so many requests being written to at the same time.
> usually a request comes in and the write process completes pretty
> quickly.  i usually see this kind of symptom if my NFS server is
> hanging.  it could likely be a problem outside of apache. have you looked
> into that? also, it's not very likely that you're server is getting this
> many requests *all at the same time* unless you're getting slashdotted.
> look at /var/log/messages or other system logs.
>
> This looks like a site that is either getting slashdotted, a resource is
> causing apache's processes/threads to hang, or a VERY busy site. 10000
> hits a day is not VERY busy so i'd look into the other other two
> possibilities.
>
> -- 
> Milan
>
>
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