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50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
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#!/usr/bin/perl
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# Munin plugin for MySQL slave threads monitoring
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# Copyright © 2009 Eutech SSII
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Plugin producing state graphes for a MySQL slave server (1 if
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# I/O or SQL thread is running, 0 otherwise). Can be used to
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# trigger a warning when a replication failure occurs.
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use strict;
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my $MYSQL = $ENV{mysql} || "mysql";
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my $MYSQLOPTS = $ENV{mysqlopts} || "";
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if(defined $ARGV[0] && $ARGV[0] eq 'config') {
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print <<EOC
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graph_title MySQL Slave Threads
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graph_vlabel Running
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graph_category mysql
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graph_args -l 0
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io.label I/O Thread
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io.critical 1:1
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sql.label SQL Thread
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sql.critical 1:1
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EOC
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;
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exit 0;
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}
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my $status = `$MYSQL $MYSQLOPTS -e 'SHOW SLAVE STATUS\\G'`;
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$status =~ /Slave_IO_Running: (\w+)/;
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print 'io.value '.($1 eq 'Yes' ? 1 : 0)."\n";
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$status =~ /Slave_SQL_Running: (\w+)/;
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print 'sql.value '.($1 eq 'Yes' ? 1 : 0)."\n";
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