server/ext/checkrusage.ext

#! perl

# restart server when certain resource limits are exceeded

our $MAX_VMSIZE  = $cf::CFG{checkrusage}{vmsize} || 1_000_000_000;

$^O eq "linux" or die "only linux supported right now.\n";

Event->timer (
   reentrant => 0,
   data      => cf::WF_AUTOCANCEL,
   interval  => 10,
   after     => 10,
   cb        => sub {
      open my $fh, "</proc/self/stat"
         or return;

      sysread $fh, my $stat, 4096; # only a single line
      my $vmsize = (split / /, $stat)[22];

      cf::cleanup "memory usage growing high, server would run out of memory soon", 0
         if $vmsize >= $MAX_VMSIZE;
   },
);
Revision:	1.4
Committed:	Sat Jan 27 00:14:03 2007 UTC (19 years, 9 months ago) by root
Branch:	MAIN
CVS Tags:	rel-2_2, rel-2_3, rel-2_0, rel-2_1
Changes since 1.3:	+0 -2 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#! perl
2
3			# restart server when certain resource limits are exceeded
4
5			our $MAX_VMSIZE = $cf::CFG{checkrusage}{vmsize} \|\| 1_000_000_000;
6
7			$^O eq "linux" or die "only linux supported right now.\n";
8
9			Event->timer (
10			reentrant => 0,
11			data => cf::WF_AUTOCANCEL,
12	root	1.2	interval => 10,
13			after => 10,
14	root	1.1	cb => sub {
15			open my $fh, "</proc/self/stat"
16			or return;
17
18			sysread $fh, my $stat, 4096; # only a single line
19			my $vmsize = (split / /, $stat)[22];
20
21	root	1.3	cf::cleanup "memory usage growing high, server would run out of memory soon", 0
22			if $vmsize >= $MAX_VMSIZE;
23	root	1.1	},
24			);