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List:       apache-httpd-users
Subject:    Re: [users@httpd] 2.0.48/49 : httpd children multiplying and eating
From:       Michel Jouvin <jouvin () lal ! in2p3 ! fr>
Date:       2004-04-30 16:49:12
Message-ID: 613187897.1083350951 () [192 ! 168 ! 0 ! 4]
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For those who are monitoring this thread, I posted follow-up information in 
thread 'httpd by root at 99,9%', opened recently but more active.

Michel

--On mercredi 28 avril 2004 15:49 +0200 Michel Jouvin <jouvin@lal.in2p3.fr> 
wrote:

> Here is another log, simpler because there is only one process involved.
>
> Michel
>
> --On lundi 26 avril 2004 15:17 +0200 Michel Jouvin <jouvin@lal.in2p3.fr>
> wrote:
>
>> Hi Joshua,
>>
>> I have not been able to send you the information requested still. The
>> problem has not occurred for 3 days...
>>
>> In fact, the only change I made just before posting the problem to the
>> list was to review worker MPM settings and lower the 'StartServers' to 1
>> as there is no need to start more at Apache startup (else other children
>> are started and immediately killed). I don't think it explains the
>> disparition of the problem. May be I just need to wait more...
>>
>> I attached my httpd.conf file and I'll let you know as soon as the
>> problem occurs again, with the material requested.
>>
>> Thanks for your help.
>>
>> Michel
>>
>> --On vendredi 23 avril 2004 12:57 -0400 Joshua Slive <joshua@slive.ca>
>> wrote:
>>
>>>
>>> On Fri, 23 Apr 2004, Michel Jouvin wrote:
>>>> From time to time (between 1 time/day and 1 time every 3 days, not at
>>>> the same hour or interval), we see the number of httpd children process
>>>> increasing to 20 or more in one hour. All these children except one
>>>> compete to eat 100% of the idle CPU and have in common a strange
>>>> characteristic : parent of these processes is not the master httpd but
>>>> the only slave which is not consuming the CPU and has the master httpd
>>>> as parent.
>>>>
>>>> These processes seems to be no longer under the control of Apache.
>>>> First they are much more than allowed by ServerLimit (16). And they
>>>> are not killed (even there is no message they couldn't be killed in
>>>> main error_log) if stopping Apache. You need to kill -9 them manually.
>>>
>>> What modules are you using?
>>>
>>> Can you attch to the spinning processes with strace and/or a debugger
>>> and see what they are up to?
>>>
>>> Joshua.
>>>
>>> ---------------------------------------------------------------------
>>> The official User-To-User support forum of the Apache HTTP Server
>>> Project. See <URL:http://httpd.apache.org/userslist.html> for more info.
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>>>
>>
>>
>>
>>      *************************************************************
>>      * Michel Jouvin                 Email : jouvin@lal.in2p3.fr *
>>      * LAL / CNRS                    Tel : +33 1 64468932        *
>>      * B.P. 34                       Fax : +33 1 69079404        *
>>      * 91898 Orsay Cedex                                         *
>>      * France                                                    *
>>      *************************************************************
>>
>
>
>
>      *************************************************************
>      * Michel Jouvin                 Email : jouvin@lal.in2p3.fr *
>      * LAL / CNRS                    Tel : +33 1 64468932        *
>      * B.P. 34                       Fax : +33 1 69079404        *
>      * 91898 Orsay Cedex                                         *
>      * France                                                    *
>      *************************************************************
>



     *************************************************************
     * Michel Jouvin                 Email : jouvin@lal.in2p3.fr *
     * LAL / CNRS                    Tel : +33 1 64468932        *
     * B.P. 34                       Fax : +33 1 69079404        *
     * 91898 Orsay Cedex                                         *
     * France                                                    *
     *************************************************************



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