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Merge branch 'postgresql_transactions-cleanup'

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Various small improvements of this trivial plugin.
This commit is contained in:
Lars Kruse 2018-06-10 14:09:42 +02:00
commit 3cb684a549
1 changed files with 58 additions and 30 deletions
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88
plugins/postgresql/postgresql_transactions
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@ -1,43 +1,71 @@
#!/bin/bash
#
# Plugin to monitor PostgreSQL Commits and Rollbacks in Transactions
#
# Author:
# Guilherme Augusto da Rocha Silva <gars.dba@gmail.com>
#
# Created:
# 9th of november 2007
#
# Usage:
# Place in /etc/munin/plugins/ (or link it there using ln -s)
#
# Parameters:
# config (required)
#
# General info:
# Require permission for database access and read (no writes are processed).
# Recommended user is PostgreSQL database owner (default: postgres).
#
# Log info:
#
#!/bin/sh
dbserver='localhost'
dbuser='postgres'
: <<=cut
if [ "$1" = "config" ]; then
=head1 NAME
postgresql_transactions - Plugin to monitor PostgreSQL Commits and Rollbacks in Transactions
=head1 USAGE
Usage:
Place in /etc/munin/plugins/ (or link it there using ln -s)
General info:
Requires permission for database read access (no writes are processed).
Recommended user is PostgreSQL database owner (default: postgres).
=head1 CONFIGURATION
The following configuration directives may be placed below /etc/munin/plugin-conf.d/ (optional):
[postgresql_transactions]
user postgres
env.dbuser postgres
env.dbhost localhost
=head1 AUTHOR
Guilherme Augusto da Rocha Silva <gars.dba@gmail.com>
Copyright (C) 2007 Guilherme Augusto da Rocha Silva <gars.dba@gmail.com>
=cut
dbhost=${dbhost:-localhost}
dbuser=${dbuser:-postgres}
do_config() {
echo 'graph_args --base 1000 --lower-limit 0'
echo 'graph_category db'
echo 'graph_info Shows summarized commits and rollbacks in transactions on the PostgreSQL Server.'
echo 'graph_title PostgreSQL Transactions'
echo 'graph_vlabel Number of Commits and Rollbacks'
echo 'graph_vlabel Commits and Rollbacks per second'
echo 'commits.label commits'
echo 'commits.min 0'
echo 'commits.info Number of transaction commits.'
echo 'commits.type DERIVE'
echo 'commits.info Number of transaction commits per second.'
echo 'rollbacks.label rollbacks'
echo 'rollbacks.min 0'
echo 'rollbacks.info Number of transaction rollbacks.'
exit 0
echo 'rollbacks.type DERIVE'
echo 'rollbacks.info Number of transaction rollbacks per second.'
}
do_fetch() {
psql -h "$dbhost" -U "$dbuser" -tc "SELECT 'commits.value '||SUM(xact_commit)::TEXT||E'\\nrollbacks.value '||SUM(xact_rollback)::TEXT FROM pg_stat_database;" --no-align
}
if [ "$1" = "config" ]; then
do_config
if [ "${MUNIN_CAP_DIRTYCONFIG:-0}" = "1" ]; then do_fetch; fi
else
do_fetch
fi
psql -h ${dbserver} -U ${dbuser} -tc "SELECT 'commits.value '||SUM(xact_commit)::TEXT||E'\nrollbacks.value '||SUM(xact_rollback)::TEXT FROM pg_stat_database;" --no-align