This file is indexed.

/usr/lib/xymon/client/ext/postgres is in hobbit-plugins 20160122.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
#!/usr/bin/perl -w
# Plugin for monitor postgres connections.
#
# Copyright (C) 2008 Christoph Berg <myon@debian.org>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

use strict;
use DBI;
use DBD::Pg;
use Hobbit;
use lib '/usr/share/postgresql-common';
use PgCommon;

my $version = PgCommon::get_newest_version () or die "no postgres version found";
my @clusters = PgCommon::get_version_clusters ($version) or die "no postgres/$version clusters found";

foreach my $cluster (@clusters) {
	my $clustername = `hostname -f`;
	chomp $clustername;
	$clustername =~ s/[^.]*\./$cluster./ if ($cluster ne "main");

	my $bb = new Hobbit ({ hostname => $clustername, test => 'postgres',
		text => "Connections to cluster $version/$cluster:\n" });

	my $socketdir = PgCommon::get_cluster_socketdir ($version, $cluster);
	my $port = PgCommon::get_cluster_port ($version, $cluster);

	my %dbh;
	$dbh{'postgres'} = DBI->connect ("DBI:Pg:dbname=postgres;host=$socketdir;port=$port", "", "",
		{RaiseError => 1}) || die;

	my $sql = "SELECT datname, count (pg_stat_activity.datname)
		FROM pg_database LEFT JOIN pg_stat_activity USING (datname)
		WHERE datallowconn AND datname <> 'template1'
		GROUP BY datname ORDER BY datname";
	my $sth = $dbh{'postgres'}->prepare($sql);
	$sth->execute();

	my @db = ();
	while ( my ($dbname, $curr_conn) = $sth->fetchrow_array ) {
		$bb->color_print ('green', "$dbname : $curr_conn\n"); # GAUGE
		push @db, $dbname;
	}
	$bb->send;

	foreach my $dbname (@db) {

		next if $dbname eq 'postgres';
	my $bb = new Hobbit ("bbpostgres"); # dummy to catch connection errors
	$dbh{$dbname} = DBI->connect ("DBI:Pg:dbname=$dbname;host=$socketdir;port=$port", "", "",
		{RaiseError => 1}) || die "";
	}

##############

	$bb = new Hobbit ({ hostname => $clustername, test => 'pgtbl',
			text => "Table activity on cluster $version/$cluster:\n" }); # DERIVE
	foreach my $dbname (@db) {
		$bb->print ("\n");

		my $sql = "SELECT SUM(n_tup_ins), SUM(n_tup_upd), SUM(n_tup_del)
			   FROM pg_stat_user_tables";
		my $sth = $dbh{$dbname}->prepare($sql);
		$sth->execute();
		my ($n_tup_ins, $n_tup_upd, $n_tup_del) = $sth->fetchrow();
		$bb->color_print ('green', "${dbname}_delete : $n_tup_del\n") if ($n_tup_del);
		$bb->color_print ('green', "${dbname}_insert : $n_tup_ins\n") if ($n_tup_ins);
		$bb->color_print ('green', "${dbname}_update : $n_tup_upd\n") if ($n_tup_upd);
	}

	$bb->send;

##############

	$bb = new Hobbit ({ hostname => $clustername, test => 'pgtpl',
			text => "Tuple reads on cluster $version/$cluster:\n" }); # DERIVE
	foreach my $dbname (@db) {
		$bb->print ("\n");

		my $sql = "SELECT SUM(seq_tup_read), SUM(idx_tup_fetch) FROM pg_stat_user_tables";
		my $sth = $dbh{$dbname}->prepare($sql);
		$sth->execute();
		my ($seq_tup_read,$idx_tup_fetch) = $sth->fetchrow();
		$bb->color_print ('green', "${dbname}_idx_fetch : $idx_tup_fetch\n") if ($idx_tup_fetch);
		$bb->color_print ('green', "${dbname}_seq_read : $seq_tup_read\n") if ($seq_tup_read);
	}

	$bb->send;

##############

	$bb = new Hobbit ({ hostname => $clustername, test => 'pgscn',
                        text => "Scans initiated on cluster $version/$cluster:\n" }); # DERIVE
	foreach my $dbname (@db) {
		$bb->print ("\n");

		my $sql = "SELECT SUM(seq_scan), SUM(idx_scan) FROM pg_stat_user_tables";
		my $sth = $dbh{$dbname}->prepare($sql);
		$sth->execute();
		my ($seq_scan,$idx_scan) = $sth->fetchrow();
		$bb->color_print ('green', "${dbname}_idx_scan : $idx_scan\n") if ($idx_scan);
		$bb->color_print ('green', "${dbname}_seq_scan : $seq_scan\n") if ($seq_scan);
	}

	$bb->send;

##############

	$bb = new Hobbit ({ hostname => $clustername, test => 'pgblk',
                        text => "Cache blocks on cluster $version/$cluster:\n" }); # DERIVE
	foreach my $dbname (@db) {
		$bb->print ("\n");

		my $sql = "SELECT blks_read, blks_hit FROM pg_stat_database WHERE datname='$dbname'";
		my $sth = $dbh{$dbname}->prepare($sql);
		$sth->execute();
		my ($blks_read,$blks_hit) = $sth->fetchrow();
		$bb->color_print ('green', "${dbname}_blks_hit : $blks_hit\n") if ($blks_hit);
		$bb->color_print ('green', "${dbname}_blks_read : $blks_read\n") if ($blks_read);
		#my $read_hitratio = $blks_read+$blks_hit != 0 ? sprintf "%.2f", ($blks_hit/($blks_read+$blks_hit))*100 : 100;
		#$out .= "${dbname}_read_hitratio : $read_hitratio\n"; # GAUGE
	}

	$bb->send;

##############

	$bb = new Hobbit ({ hostname => $clustername, test => 'pgxlg',
                        text => "Xlog activity on cluster $version/$cluster:\n" }); #DERIVE
	foreach my $dbname (@db) {
		$bb->print ("\n");

		my $sql = "SELECT xact_commit, xact_rollback FROM pg_stat_database WHERE datname='$dbname'";
		my $sth = $dbh{$dbname}->prepare($sql);
		$sth->execute();
		my ($curr_xact_commit,$curr_xact_rollback) = $sth->fetchrow();
		$bb->color_print ('green', "${dbname}_commit : $curr_xact_commit\n") if ($curr_xact_commit);
		$bb->color_print ('green', "${dbname}_rollback : $curr_xact_rollback\n") if ($curr_xact_rollback);
	}

	$bb->send;

##############

	$bb = new Hobbit ({ hostname => $clustername, test => 'pglck',
                        text => "Locks on cluster $version/$cluster:\n" }); #GAUGE
	foreach my $dbname (@db) {
		$bb->print ("\n");

		my $sql="SELECT mode, COUNT(mode) FROM pg_locks GROUP BY mode ORDER BY mode";
		my $sth = $dbh{$dbname}->prepare ($sql);
		$sth->execute ();
		my $locks = 0;
		my $exlocks = 0;
		while (my ($mode, $count) = $sth->fetchrow ()) {
		    if ($mode =~ /exclusive/i) {
			$exlocks = $exlocks + $count;
		    }
		    $locks = $locks+$count;
		}
		$bb->color_print ('green', "${dbname}_exlocks : $exlocks\n") if ($exlocks);
		$bb->color_print ('green', "${dbname}_locks : $locks\n") if ($exlocks);
	}

	$bb->send;

##############

	foreach my $dbname (@db) {
		$dbh{$dbname}->disconnect;
	}

}