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From Andrew Rosolino <and...@shiftcode.com>
Subject Re: [users@httpd] Apache Hangs.. Server-Status shows all Reading
Date Thu, 08 Nov 2007 18:27:59 GMT

Ok I did it but how am I suppose to read this?

        J5...3.P..w....8P...{.........
13:26:22.990526 IP alpha2.shiftcode.com.http > nat10.ekspres.net.pl.3891: .
ack 1 win 6432
E..(..@.@.G.J5..S..

        .P.3...{..w.P.. \...
13:26:22.994371 IP nat10.ekspres.net.pl.3891 > alpha2.shiftcode.com.http: R
1:1(0) ack 1091 win 0
E..(0.@.r.~]S..

        J5...3.P..w....zP...v.........
13:26:23.002050 IP n219077060129.netvigator.com.61317 >
alpha2.shiftcode.com.http: S 2990870443:2990870443(0) win 642
40 <mss 1452,nop,nop,sackOK>

E..0.<@.v....M<.J5.....P.E......p...n...........
13:26:23.002083 IP alpha2.shiftcode.com.http >
n219077060129.netvigator.com.61317: S 3164683349:3164683349(0) ack 299
0870444 win 5840 <mss 1460,nop,nop,sackOK>



Christian Folini-4 wrote:
> 
> Hey Andrew,
> 
> You have to try and isolate the problem.
> It's a start to remove modules and make the issue
> go away in a lab setup and thus identify the component
> that is causing the problem. Try to nail down the
> individual requests that cause a server process/thread
> to hang.
> 
> Ideally mod_forensic should tell you about this
> requests as the forensic log will tell you about incoming
> requests before they are handled. But I am not sure
> they are in the forensic log as your status suggests
> they are still being read. 
> 
> tcpdump outside of your apache could help here (start
> with "tcpdump -A -s 0 port xxx" here. Unless it is
> https traffic, then it would not tell you much.
> 
> regs,
> 
> Christian
> 
> On Wed, Nov 07, 2007 at 09:31:58AM -0800, Andrew Rosolino wrote:
>> 
>> Hi this keeps happening a lot where my server will be unresponsive... it
>> just
>> hangs forever.. so I checked the apache server-status and there was 131
>> requests that looked like this..
>> 
>> 39-16 2177 0/67/114 R  0.95 47 562 0.0 0.48 0.66  ? ? ..reading..  
>> 40-16 29189 0/220/220 R  3.40 47 135 0.0 0.67 0.67  ? ? ..reading..  
>> 41-16 3959 0/7/111 R  0.21 48 81 0.0 0.01 0.42  ? ? ..reading..  
>> 
>> They were all just in the "reading" state and i couldnt get an open slot
>> nor
>> anyone else who was viewing our websites..
>> 
>> I restarted apache and all was fine.. but then 20 minutes later they went
>> back all into a reading state.. it appears as if slowly each processes
>> goes
>> into the reading state?? I dont understand what the problem is.
>> -- 
>> View this message in context:
>> http://www.nabble.com/Apache-Hangs..-Server-Status-shows-all-Reading-tf4766110.html#a13631744
>> Sent from the Apache HTTP Server - Users mailing list archive at
>> Nabble.com.
>> 
>> 
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> 
> ---------------------------------------------------------------------
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> 
> 

-- 
View this message in context: http://www.nabble.com/Apache-Hangs..-Server-Status-shows-all-Reading-tf4766110.html#a13652832
Sent from the Apache HTTP Server - Users mailing list archive at Nabble.com.


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