Resource(3)

NAME

       Apache::Resource - Limit resources used by httpd children

SYNOPSIS

        PerlModule Apache::Resource
        #set child memory limit in megabytes
        #default is 64 Meg
        PerlSetEnv PERL_RLIMIT_DATA 32:48

        #linux does not honor RLIMIT_DATA
        #RLIMIT_AS (address space) will work to limit the size of a process
        PerlSetEnv PERL_RLIMIT_AS 32:48

        #set child cpu limit in seconds
        #default is 360 seconds
        PerlSetEnv PERL_RLIMIT_CPU 120

        PerlChildInitHandler Apache::Resource

DESCRIPTION

       Apache::Resource uses the BSD::Resource module, which uses the C func-
       tion "setrlimit" to set limits on system resources such as memory and
       cpu usage.

       Any RLIMIT operation available to limit on your system can be set by
       defining that operation as an environment variable with a "PERL_" pre-
       fix.  See your system "setrlimit" manpage for available resources which
       can be limited.

       The following limit values are in megabytes: "DATA", "RSS", "STACK",
       "FSIZE", "CORE", "MEMLOCK"; all others are treated as their natural
       unit.

       If the value of the variable is of the form "S:H", "S" is treated as
       the soft limit, and "H" is the hard limit.  If it is just a single num-
       ber, it is used for both soft and hard limits.

DEFAULTS

       To set reasonable defaults for all RLIMITs, add this to your
       httpd.conf:

        PerlSetEnv PERL_RLIMIT_DEFAULTS On
        PerlModule Apache::Resource

AUTHOR

       Doug MacEachern

SEE ALSO

       BSD::Resource(3), setrlimit(2)

perl v5.8.6                       1999-01-17               Apache::Resource(3)