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FreeBSD and Apache FD_SETSIZE

Discussion in 'EasyApache' started by hicom, Oct 6, 2005.

  1. hicom

    hicom Well-Known Member

    May 23, 2003
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    I am noticing this error on FreeBSD 5.4 with Apache 1.3.33

    [Thu Oct 6 14:51:31 2005] [warn] send body: filedescriptor (1367) larger than FD_SETSIZE
    (1024) found, you probably need to rebuild Apache with a larger FD_SETSIZE

    I did re-compile apache from WHM (we made sure FD_SETSIZE is checked, and removed the checked at the bottom next to Skip Building apache)

    however, the problem still occurs. so I modified /usr/local/apache/bin/apachectl and added :

    ulimit -n 16480
    also in

    But the same problem continues, it is happening much less than before, but we continue to see it.

    <?PHP echo `ulimit -n`; ?> shows: 11095

    How else would we need to increase the FD_SETSIZE on FreeBSD 5 ?

    I read somewhere there is also need to change it at:
    /usr/include/sys/select.h ?

    This requires recompiling Kernel, correct ? How about adding this to the FBSD kernel:
    options FD_SETSIZE nnn as suggested in Apache FAQ:

    Also it appears there are different places the FD_SETSIZE need to be changed as per:

    Any input or experiences with these are welcomed.

    #1 hicom, Oct 6, 2005
    Last edited: Oct 6, 2005

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