diff options
Diffstat (limited to 'nagios-plugins-contrib-24.20190301~bpo9+1/percona-nagios-plugins/nagios/bin/pmp-check-mysql-deadlocks')
| -rwxr-xr-x | nagios-plugins-contrib-24.20190301~bpo9+1/percona-nagios-plugins/nagios/bin/pmp-check-mysql-deadlocks | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/nagios-plugins-contrib-24.20190301~bpo9+1/percona-nagios-plugins/nagios/bin/pmp-check-mysql-deadlocks b/nagios-plugins-contrib-24.20190301~bpo9+1/percona-nagios-plugins/nagios/bin/pmp-check-mysql-deadlocks new file mode 100755 index 0000000..0545f06 --- /dev/null +++ b/nagios-plugins-contrib-24.20190301~bpo9+1/percona-nagios-plugins/nagios/bin/pmp-check-mysql-deadlocks @@ -0,0 +1,189 @@ +#!/bin/sh + +# ######################################################################## +# This program is part of $PROJECT_NAME$ +# License: GPL License (see COPYING) +# Authors: +# Baron Schwartz +# Depends-on: pt-deadlock-logger +# ######################################################################## + +# ######################################################################## +# Redirect STDERR to STDOUT; Nagios doesn't handle STDERR. +# ######################################################################## +exec 2>&1 + +# ######################################################################## +# Set up constants, etc. +# ######################################################################## +STATE_OK=0 +STATE_OK=0 +STATE_WARNING=1 +STATE_CRITICAL=2 +STATE_UNKNOWN=3 +STATE_DEPENDENT=4 + +# ######################################################################## +# Run the program. +# ######################################################################## +main() { + # Get options + for o; do + case "${o}" in + -c) shift; OPT_CRIT="${1}"; shift; ;; + --defaults-file) shift; OPT_DEFT="${1}"; shift; ;; + -H) shift; OPT_HOST="${1}"; shift; ;; + -i) shift; OPT_INTERVAL="${1}"; shift; ;; + -l) shift; OPT_USER="${1}"; shift; ;; + -L) shift; OPT_LOPA="${1}"; shift; ;; + -p) shift; OPT_PASS="${1}"; shift; ;; + -P) shift; OPT_PORT="${1}"; shift; ;; + -S) shift; OPT_SOCK="${1}"; shift; ;; + -T) shift; OPT_TABLE="${1}"; shift; ;; + -w) shift; OPT_WARN="${1}"; shift; ;; + --version) grep -A2 '^=head1 VERSION' "$0" | tail -n1; exit 0 ;; + --help) perl -00 -ne 'm/^ Usage:/ && print' "$0"; exit 0 ;; + -*) echo "Unknown option ${o}. Try --help."; exit 1; ;; + esac + done + OPT_WARN=${OPT_WARN:-12} + OPT_CRIT=${OPT_CRIT:-60} + OPT_INTERVAL=${OPT_INTERVAL:-1} + OPT_TABLE="${OPT_TABLE:-percona.deadlocks}" + if [ -e '/etc/nagios/mysql.cnf' ]; then + OPT_DEFT="${OPT_DEFT:-/etc/nagios/mysql.cnf}" + fi + if is_not_sourced; then + if [ -n "$1" ]; then + echo "WARN spurious command-line options: $@" + exit 1 + fi + fi + + LEVEL=$(mysql_exec "SELECT COUNT(*) FROM ${OPT_TABLE} WHERE server IN ('${OPT_HOST}', @@hostname) AND ts >= NOW() - INTERVAL ${OPT_INTERVAL}*60 SECOND") + if [ $? = 0 ]; then + NOTE="${LEVEL:-UNKNOWN} deadlocks in last ${OPT_INTERVAL} minutes" + if [ "${LEVEL:-0}" -gt "${OPT_CRIT}" ]; then + NOTE="CRIT $NOTE" + elif [ "${LEVEL:-0}" -gt "${OPT_WARN}" ]; then + NOTE="WARN $NOTE" + else + NOTE="OK $NOTE" + fi + + # Build the common perf data output for graph trending + PERFDATA="deadlocks=${LEVEL:-0};${OPT_WARN};${OPT_CRIT};0;" + NOTE="$NOTE | $PERFDATA" + else + NOTE="UNK could not count deadlocks" + fi + echo $NOTE +} + +# ######################################################################## +# Execute a MySQL command. +# ######################################################################## +mysql_exec() { + mysql ${OPT_DEFT:+--defaults-file="${OPT_DEFT}"} ${OPT_HOST:+-h"${OPT_HOST}"} ${OPT_USER:+-u"${OPT_USER}"} \ + ${OPT_PASS:+-p"${OPT_PASS}"} ${OPT_SOCK:+-S"${OPT_SOCK}"} ${OPT_PORT:+-P"${OPT_PORT}"} \ + ${OPT_LOPA:+--login-path="${OPT_LOPA}"} -ss -e "$1" +} + +# ######################################################################## +# Determine whether this program is being executed directly, or sourced/included +# from another file. +# ######################################################################## +is_not_sourced() { + [ "${0##*/}" = "pmp-check-mysql-deadlocks" ] || [ "${0##*/}" = "bash" -a "$_" = "$0" ] +} + +# ######################################################################## +# Execute the program if it was not included from another file. +# This makes it possible to include without executing, and thus test. +# ######################################################################## +if is_not_sourced; then + OUTPUT=$(main "$@") + EXITSTATUS=$STATE_UNKNOWN + case "${OUTPUT}" in + UNK*) EXITSTATUS=$STATE_UNKNOWN; ;; + OK*) EXITSTATUS=$STATE_OK; ;; + WARN*) EXITSTATUS=$STATE_WARNING; ;; + CRIT*) EXITSTATUS=$STATE_CRITICAL; ;; + esac + echo "${OUTPUT}" + exit $EXITSTATUS +fi + +# ############################################################################ +# Documentation +# ############################################################################ +: <<'DOCUMENTATION' +=pod + +=head1 NAME + +pmp-check-mysql-deadlocks - Alert when pt-deadlock-logger has recorded too many recent deadlocks. + +=head1 SYNOPSIS + + Usage: pmp-check-mysql-deadlocks [OPTIONS] + Options: + -c CRIT Critical threshold; default 60. + --defaults-file FILE Only read mysql options from the given file. + Defaults to /etc/nagios/mysql.cnf if it exists. + -H HOST MySQL hostname. + -i INTERVAL Interval over which to count, in minutes; default 1. + -l USER MySQL username. + -L LOGIN-PATH Use login-path to access MySQL (with MySQL client 5.6). + -p PASS MySQL password. + -P PORT MySQL port. + -S SOCKET MySQL socket file. + -T TABLE The database.table that pt-deadlock-logger uses; default percona.deadlocks. + -w WARN Warning threshold; default 12. + --help Print help and exit. + --version Print version and exit. + Options must be given as --option value, not --option=value or -Ovalue. + Use perldoc to read embedded documentation with more details. + +=head1 DESCRIPTION + +This Nagios plugin looks at the table that pt-deadlock-logger (part of Percona +Toolkit) maintains, and when there have been too many recent deadlocks, it +alerts. + +=head1 PRIVILEGES + +This plugin executes the following commands against MySQL: + +=over + +=item * + +C<SELECT> from the C<pt-deadlock-logger> table. + +=back + +This plugin executes no UNIX commands that may need special privileges. + +=head1 COPYRIGHT, LICENSE, AND WARRANTY + +This program is copyright 2012-$CURRENT_YEAR$ Baron Schwartz, 2012-$CURRENT_YEAR$ Percona Inc. +Feedback and improvements are welcome. + +THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED +WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + +This program is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free Software +Foundation, version 2. You should have received a copy of the GNU General +Public License along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + +=head1 VERSION + +$PROJECT_NAME$ pmp-check-mysql-deadlocks $VERSION$ + +=cut + +DOCUMENTATION |