Re: Kernel: Out of Memory: Killed process 5524 (httpd)

From: Jonathan Bartlett (johnnyb_at_eskimo.com)
Date: 06/01/04

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    Date: Tue, 1 Jun 2004 13:26:08 -0700 (PDT)
To: Jay Berryman <jay.berryman@sitel.com>

    How big is your average httpd process? What language modules have you
    included?

    Jon

    On Tue, 1 Jun 2004, Jay Berryman wrote:

    > There is 500MB of memory and 2GB of swap. Here is an output from top
    > showing the other info.
    >
    > 15:21:53 up 14:07, 1 user, load average: 0.53, 0.35, 0.30
    > 117 processes: 116 sleeping, 1 running, 0 zombie, 0 stopped
    > CPU0 states: 0.0% user 1.0% system 0.0% nice 0.0% iowait 98.4%
    > idle
    > CPU1 states: 0.0% user 0.1% system 0.0% nice 0.0% iowait 99.4%
    > idle
    > Mem: 513172k av, 500900k used, 12272k free, 0k shrd, 148244k
    > buff
    > 308452k actv, 32k in_d, 7824k in_c
    > Swap: 2096252k av, 2812k used, 2093440k free 198312k
    > cached
    >
    >
    > On Tue, 2004-06-01 at 15:20, Jonathan Bartlett wrote:
    >
    > > How much memory do you have? How many processes other than HTTPD are
    > > running and how much memory are they taking up?
    > >
    > > Jon
    > >
    > > On Tue, 1 Jun 2004, Jay Berryman wrote:
    > >
    > > > Here is part of my httpd.conf file that lists what those values are. If
    > > > they are ste to high, what is a good number to set them to?
    > > >
    > > >
    > > >
    > > >
    > > > > <IfModule prefork.c>
    > > > > StartServers 8
    > > > > MinSpareServers 5
    > > > > MaxSpareServers 20
    > > > > MaxClients 150
    > > > > MaxRequestsPerChild 1000
    > > > > </IfModule>
    > > >
    > > >
    > > >
    > > > > <IfModule worker.c>
    > > > > StartServers 2
    > > > > MaxClients 150
    > > > > MinSpareThreads 25
    > > > > MaxSpareThreads 75
    > > > > ThreadsPerChild 25
    > > > > MaxRequestsPerChild 0
    > > > > </IfModule>
    > > >
    > > >
    > > >
    > > > > <IfModule perchild.c>
    > > > > NumServers 5
    > > > > StartThreads 5
    > > > > MinSpareThreads 5
    > > > > MaxSpareThreads 10
    > > > > MaxThreadsPerChild 20
    > > > > MaxRequestsPerChild 0
    > > > > </IfModule>
    > > >
    > > >
    > > >
    > > >
    > > > On Tue, 2004-06-01 at 15:00, Jonathan Bartlett wrote:
    > > >
    > > > > My gues is that you have MaxClients set way too high.
    > > > >
    > > > > Jon
    > > > >
    > > > > On Tue, 1 Jun 2004, Jay Berryman wrote:
    > > > >
    > > > > > I have been seeing the following error messages in /var/log/messages
    > > > > > every couple of days.
    > > > > >
    > > > > > kernel: Out of Memory: Killed process 5524 (httpd)
    > > > > >
    > > > > > These type of messages continue on through the log until the server
    > > > > > crashes. I believe it is a memory leak in apache, but I have no idea
    > > > > > what is causing it. I am currently running RedHat 9.0 on kernel
    > > > > > 2.4.20-8smp with apache version 2.0.40. The server is completly up to
    > > > > > date with the latest redhat bugfixes and errata. Any help on this issue
    > > > > > would be greatly apreciated. Thanks.
    > > > > >
    > > > > > --
    > > > > > Jay Berryman
    > > > > > Systems Engineer, RHCT
    > > > > >
    > > > > >
    > > > > > --
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    > > > > > https://www.redhat.com/mailman/listinfo/redhat-list
    > > > > >
    > > >
    > > > --
    > > > Jay Berryman
    > > > Systems Engineer, RHCT
    > > >
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    > > > prohibited. If you have received this communication in error, please
    > > > notify SITEL immediately by telephone at 402.963.6001 and delete the
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    > --
    > Jay Berryman
    > Systems Engineer, RHCT
    >
    > This message and any attachments are intended only for the use of the
    > addressee and may contain information that is privileged and
    > confidential. If the reader of the message is not the intended
    > recipient, or the authorized agent of the intended recipient, you are
    > hereby notified that any dissemination of this communication is strictly
    > prohibited. If you have received this communication in error, please
    > notify SITEL immediately by telephone at 402.963.6001 and delete the
    > message and any attachments from your system. Thank you for your
    > cooperation.
    > 

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