1docs::api::Apache2::ResUosuerrceC(o3n)tributed Perl Docudmoecnst:a:taipoin::Apache2::Resource(3)
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NAME

6       Apache2::Resource - Limit resources used by httpd children
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Synopsis

9         PerlModule Apache2::Resource
10         # set child memory limit in megabytes
11         # default is 64 Meg
12         PerlSetEnv PERL_RLIMIT_DATA 32:48
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14         # linux does not honor RLIMIT_DATA
15         # RLIMIT_AS (address space) will work to limit the size of a process
16         PerlSetEnv PERL_RLIMIT_AS 32:48
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18         # set child cpu limit in seconds
19         # default is 360 seconds
20         PerlSetEnv PERL_RLIMIT_CPU 120
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22         PerlChildInitHandler Apache2::Resource
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Description

25       "Apache2::Resource" uses the "BSD::Resource" module, which uses the C
26       function "setrlimit" to set limits on system resources such as memory
27       and cpu usage.
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29       Any "RLIMIT" operation available to limit on your system can be set by
30       defining that operation as an environment variable with a "PERL_" pre‐
31       fix.  See your system "setrlimit" manpage for available resources which
32       can be limited.
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34       The following limit values are in megabytes: "DATA", "RSS", "STACK",
35       "FSIZE", "CORE", "MEMLOCK"; all others are treated as their natural
36       unit.
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38       If the value of the variable is of the form "S:H", "S" is treated as
39       the soft limit, and "H" is the hard limit.  If it is just a single num‐
40       ber, it is used for both soft and hard limits.
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Defaults

43       To set reasonable defaults for all RLIMITs, add this to your
44       httpd.conf:
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46         PerlSetEnv PERL_RLIMIT_DEFAULTS On
47         PerlModule Apache2::Resource
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See Also

50       BSD::Resource(3), setrlimit(2)
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53       mod_perl 2.0 and its core modules are copyrighted under The Apache
54       Software License, Version 2.0.
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Author

57       Doug MacEachern
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61perl v5.8.8                       2006-11-19   docs::api::Apache2::Resource(3)
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