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contrib-munin/plugins/postgresql/pgbouncer_client_connections

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#!/bin/bash
#
# Plugin to monitor PgBouncer total client connections for all pools.
#
# Author:
# Dave Fennell <dave@microtux.co.uk>
#
# Created:
# 20th December 2012
#
# License:
# GPLv2
#
# Usage:
# Place in /etc/munin/plugins/ (or link it there using ln -s)
#
dbserver='' # '-h localhost'
dbuser='postgres'
# Pgbouncer Port Number
port=6432
# The psql command to use.
cmd="psql ${dbserver} -U ${dbuser} -p ${port} pgbouncer -tc 'SHOW POOLS;' | grep -v '^$'"
if [ "$1" = "config" ]; then
echo 'graph_args --lower-limit 0'
echo 'graph_category db'
echo 'graph_info The sum of the active and waiting clients for each pool on the server.'
echo 'graph_scale no'
echo 'graph_title PgBouncer Pool Total Client Connections'
echo 'graph_vlabel client connections'
eval ${cmd} | while read pool sep user junk
do
# Skip pgbouncer database itself.
if [ "$user" = "pgbouncer" ]; then
continue
fi
test -z "${pool}" && continue
echo ${pool}.label ${pool}
echo ${pool}.info ${pool} connection pool
echo ${pool}.type GAUGE
done
# If dirty config capability is enabled then fall through
# to output the data with the config information.
if [ "$MUNIN_CAP_DIRTYCONFIG" = "" ]; then
exit 0
fi
fi
# Output looks like this:
# database | user | cl_active | cl_waiting | sv_active | sv_idle | sv_used | sv_tested | sv_login | maxwait
eval ${cmd} | while read pool sep user sep cl_active sep cl_waiting sep sv_active sep sv_idle sep sv_used sep sv_tested sep sv_login sep maxwait
do
# Skip pgbouncer database itself.
if [ "$user" = "pgbouncer" ]; then
continue
fi
total=$(echo ${cl_active} + ${cl_waiting} | bc)
echo ${pool}.value ${total}
done