| 1 | #! perl |
1 | #! perl |
| 2 | |
2 | |
| 3 | # restart server when certain resource limits are exceeded |
3 | # restart server when certain resource limits are exceeded |
| 4 | |
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| 5 | use Unix::Getrusage; |
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| 6 | |
4 | |
| 7 | our $MAX_VMSIZE = $cf::CFG{checkrusage}{vmsize} || 1_000_000_000; |
5 | our $MAX_VMSIZE = $cf::CFG{checkrusage}{vmsize} || 1_000_000_000; |
| 8 | |
6 | |
| 9 | $^O eq "linux" or die "only linux supported right now.\n"; |
7 | $^O eq "linux" or die "only linux supported right now.\n"; |
| 10 | |
8 | |
| 11 | Event->timer ( |
9 | our $STAT_FH; |
| 12 | reentrant => 0, |
10 | our $TIMER; |
| 13 | data => cf::WF_AUTOCANCEL, |
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| 14 | interval => 10, |
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| 15 | after => 10, |
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| 16 | cb => sub { |
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| 17 | open my $fh, "</proc/self/stat" |
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| 18 | or return; |
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| 19 | |
11 | |
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12 | cf::post_init { |
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13 | $STAT_FH = Coro::AIO::aio_open "/proc/self/stat", IO::AIO::O_RDONLY, 0 |
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14 | or return; |
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15 | |
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16 | $TIMER = cf::periodic 10, sub { |
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17 | sysseek $STAT_FH, 0, 0; |
| 20 | sysread $fh, my $stat, 4096; # only a single line |
18 | sysread $STAT_FH, my $stat, 4096; # only a single line |
| 21 | my $vmsize = (split / /, $stat)[22]; |
19 | my $vmsize = (split / /, $stat)[22]; |
| 22 | |
20 | |
| 23 | cf::cleanup "memory usage growing high, server would run out of memory soon", 0 |
21 | cf::cleanup "memory usage growing high, server would run out of memory soon", 0 |
| 24 | if $vmsize >= $MAX_VMSIZE; |
22 | if $vmsize >= $MAX_VMSIZE; |
| 25 | }, |
23 | }; |
| 26 | ); |
24 | }; |
