Merge pull request #502 from smith153/master

Added postgres_queries3_ to get stats on a per table basis

plugins/postgresql/postgres_queries3_

@@ -0,0 +1,111 @@
+#!/usr/bin/env perl
+
+# postgres_queries3: see stats on number of rows 
+# read, inserted, updated and deleted on a per table basis
+#
+# Author:
+#    Samuel Smith leon36 <snail> gmail <dot> com
+#
+# Created:
+#    20140701
+#
+# Usage:
+#    Place in /etc/munin/plugins/ (or link it there using ln -s)
+#    Place table names after '_' and delimit with '-'
+#    EX: postgres_queries3_table1-table2-table3
+#
+# Parameters:
+#    config   (required)
+#    conf:
+#    [postgres_*]
+#    user postgres
+#
+#
+# General info:
+#    Require permission for database access and read (no writes are processed).
+#    Recommended user is PostgreSQL database owner.
+#    On debian systems install libipc-run3-perl
+#
+# Log info:
+# 20140701 - Initial 
+#
+
+
+use strict;
+use IPC::Run3 qw( run3 );
+
+
+my %values;
+
+my $query = \<<EOF;
+select	
+	'sel_seq.value '	|| SUM(seq_scan)	|| E'\n' ||
+	'sel_seq_rows.value '	|| SUM(seq_tup_read)	|| E'\n' ||
+	'sel_idx.value '	|| SUM(idx_scan)	|| E'\n' ||
+	'sel_idx_rows.value '	|| SUM(idx_tup_fetch)	|| E'\n' ||
+	'inserts.value '	|| SUM(n_tup_ins)	|| E'\n' ||
+	'updates.value '	|| SUM(n_tup_upd)	|| E'\n' ||
+	'deletes.value '	|| SUM(n_tup_del)
+		from pg_stat_all_tables;
+EOF
+
+
+$0 =~ /postgres_queries3_(.*)/;
+
+my @dbs = split(/-/,$1);
+
+if( defined $ARGV[0] and $ARGV[0] eq "config" ){
+print qq/graph_title Postgres All Queries
+graph_args --base 1000
+graph_vlabel Queries per \${graph_period}
+graph_category PostgreSQL
+graph_info Shows number of select, insert, update and delete queries
+sel_seq.label s_selects
+sel_seq.info Sequential selects on all tables
+sel_seq.type DERIVE
+sel_seq.min 0
+sel_seq_rows.label s_select rows
+sel_seq_rows.info Rows returned from sequential selects
+sel_seq_rows.type DERIVE
+sel_seq.min 0
+sel_idx.label i_selects
+sel_idx.info Sequential selects on all indexes
+sel_idx.type DERIVE
+sel_seq.min 0
+sel_idx_rows.label i_select rows
+sel_idx_rows.info Rows returned form index selects
+sel_idx_rows.type DERIVE
+sel_seq_rows.min 0
+inserts.label inserts
+inserts.info Rows inserted on all tables
+inserts.type DERIVE
+inserts.min 0
+inserts.critical 0.4:1
+updates.label updates
+updates.info Rows updated on all tables
+updates.type DERIVE
+updates.min 0
+deletes.label deletes
+deletes.info Rows deleted from all tables
+deletes.type DERIVE
+deletes.min 0
+/;
+exit;
+}
+
+foreach my $db (@dbs){
+	my @out;
+
+	run3( "psql -At $db", $query, \@out);
+
+	foreach my $line (@out){
+		my($key, $value) = split(/ /, $line);
+		$values{$key} += $value;
+	}
+	
+
+}
+
+foreach my $key (keys %values){
+	print "$key $values{$key}\n";
+}