Hello all again,
It seems that Problem can only be solved by one of the following ways:
1. Don't use mod_php; use CGI or FastCGI instead. Then it would be
possible to limit the resources via RLimitCPU / RLimitMEM.
2. Use one of the following apache core patch
http://archives.neohapsis.com/archives/openbsd/2005-12/1436.html
or the following apache module:
http://www.ucc.asn.au/~dagobah/things/mod_rlimit.c
(Unfortunately only for apache 1.3)
Thanks for all your answers.
Kind regards
valli
Valentin Schmid - ICSurselva AG wrote:
Hello all,
Is there a way to limit the memory consumption and / or the CPU
consumption of processes launched by the php functions system,
exec, passthru, proc_open and shell_exec?
We use mod_php with an apache (mpm-prefork) on Linux.
The following settings don't have any effect at all:
PHP:
max_execution_time 30
memory_limit 8M
Apache:
RLimitCPU 30 30
RLimitMEM 8388608 8388608
The limits above do have effect on php-scripts (without system calls)
and on CGIs (as well on processes launched by CGIs).
Any Ideas?
Kind Regards
valli
PS: I tested it with the following two scripts:
system_memorytest.php
=
php-systemcall-memory test
php-systemcall-memory test
... and here's the system call:
\n";
$s = "teststr_";
while (1) {
print "len=".length($s)."\n";
sleep(1);
$s .= $s;
}
\'';
print htmlspecialchars($cmd);
?>
system_timeouttest.php
==
php-systemcall-timeout test
php-systemcall-timeout test
... and here's the system call:
\n";
$i = 0;
while (1) {
if (($i % 1000) == 0) {
print "i=".$i."\n";
}
$i += 1;
}
\'';
print htmlspecialchars($cmd);
?>
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