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server crashes

Discussion in 'General Discussion' started by BigLebowski, Jan 27, 2009.

  1. BigLebowski

    BigLebowski Well-Known Member

    Dec 24, 2007
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    hi there

    I have one box that occasionally dies. If I'm logged in at the time, I find kswapd running like the clappers and the load shooting up exponentially. I can rescue it if I'm lucky using killall -9 httpd then restart httpd.

    There are 500 sites on the box.

    There are several errors in /usr/local/apache/logs/error:

    socket.c:2117: REQUIRE(maxfd <= (int)1024) failed.
    host: isc_socket_create: not enough free resources

    ulimit -a

    core file size (blocks, -c) 1000000
    data seg size (kbytes, -d) unlimited
    file size (blocks, -f) unlimited
    pending signals (-i) 1024
    max locked memory (kbytes, -l) 32
    max memory size (kbytes, -m) unlimited
    open files (-n) 4096
    pipe size (512 bytes, -p) 8
    POSIX message queues (bytes, -q) 819200
    stack size (kbytes, -s) 8192
    cpu time (seconds, -t) unlimited
    max user processes (-u) 14335
    virtual memory (kbytes, -v) unlimited
    file locks (-x) unlimited

    In httpd.conf:

    StartServers 5
    MinSpareServers 5
    MaxSpareServers 10
    MaxClients 150
    MaxRequestsPerChild 0


    4560 0 131072

    I've read somewhere that this is php leaving file handles open after exec calls.
    Any help appreciated.


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