75 lines
1.4 KiB
Plaintext
75 lines
1.4 KiB
Plaintext
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#!/usr/bin/perl
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=head1 NAME
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loadcheck
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=head1 DESCRIPTION
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Only takes email transactions if the system load is at or below a
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specified level.
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=head1 CONFIG
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max_load
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This is the 1 minute system load where we won't take transactions
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if our load is higher than this value. (Default: 7)
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uptime
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The path to the command 'uptime' if different than the default.
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(Default: /usr/bin/uptime)
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Example:
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loadcheck max_load 7 uptime /usr/bin/uptime
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=over 4
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=head1 AUTHOR
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Written by Peter Eisch <peter@boku.net>.
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=cut
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my $VERSION = 0.01;
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sub register {
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my ($self, $qp, @args) = @_;
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%{$self->{_args}} = @args;
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$self->{_args}->{max_load} = 7
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if (! defined $self->{_args}->{max_load});
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$self->{_args}->{uptime} = '/usr/bin/uptime'
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if (! defined $self->{_args}->{uptime});
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$self->register_hook("connect", "loadcheck");
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}
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sub loadcheck {
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my ($self, $transaction) = @_;
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my $hiload = 0;
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my $cmd = $self->{_args}->{uptime};
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#10:33AM up 2:06, 1 user, load averages: 6.55, 3.76, 2.48
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# 12:29am 2 users, load average: 0.05, 0.05, 0.06
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# 12:30am up 5 days, 12:43, 1 user, load average: 0.00, 0.00, 0.00
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my $res = `$self->{_args}->{uptime}`;
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if ($res =~ /aver\S+: (\d+\.\d+)/) {
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$hiload = $1;
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}
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if ($hiload > $self->{_args}->{max_load}) {
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$self->log(LOGERROR, "local load too high: $hiload");
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return DENYSOFT;
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}
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return (DECLINED, "continuing with load: $hiload");
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}
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