49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
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#!/usr/bin/perl -w
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use strict;
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use DBI;
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my $dbhost = $ENV{'dbhost'} || '127.0.0.1';
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my $dbname = $ENV{'dbname'} || 'template1';
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my $dbuser = $ENV{'dbuser'} || 'postgres';
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my $dbpass = $ENV{'dbpass'} || '';
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if ($ARGV[0] && $ARGV[0] eq "config") {
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print <<EOF;
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graph_title Postgres locks
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graph_args -l 0 --base 1000
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graph_vlabel Locks
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graph_category Postgresql
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graph_info Shows Postgresql locks
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locks.label Locks
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locks.info Locks (more info here, please... :)
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locks.type GAUGE
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locks.warning 5
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locks.critical 10
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exlocks.label Exclusive locks
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exlocks.info Exclusive locks (here too, please... :)
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exlocks.type GAUGE
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exlocks.warning 5
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exlocks.critical 10
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EOF
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} else {
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my $Con = "DBI:Pg:dbname=$dbname;host=$dbhost";
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my $Dbh = DBI->connect ($Con,
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$dbuser,
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$dbpass,
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{RaiseError =>1}) || die "Unable to access Database $dbname on host $dbhost as user $dbuser.\nError returned was: ". $DBI::errstr;
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my $sql="SELECT mode,COUNT(mode) FROM pg_locks GROUP BY mode ORDER BY mode;";
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my $sth = $Dbh->prepare ($sql);
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$sth->execute ();
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my $locks = 0;
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my $exlocks = 0;
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while (my ($mode, $count) = $sth->fetchrow ()) {
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if ($mode =~ /exclusive/i) {
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$exlocks = $exlocks + $count;
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}
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$locks = $locks+$count;
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}
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print "locks.value $locks\n";
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print "exlocks.value $exlocks\n";
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}
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