60 lines
1.4 KiB
Bash
Executable File
60 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# Plugin to monitor PostgreSQL Locks
|
|
#
|
|
# Author:
|
|
# Guilherme Augusto da Rocha Silva <gars.dba@gmail.com>
|
|
#
|
|
# Created:
|
|
# 5th of november 2007
|
|
#
|
|
# Modified:
|
|
# 22th of September 2011 by Nozomu Kaneko <nozom.kaneko@gmail.com>
|
|
#
|
|
# 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:
|
|
#
|
|
|
|
dbserver='localhost'
|
|
dbuser='postgres'
|
|
|
|
modes="AccessExclusive AccessShare Exclusive RowExclusive RowShare Share ShareRowExclusive ShareUpdateExclusive"
|
|
|
|
if [ "$1" = "config" ]; then
|
|
echo 'graph_args --lower-limit 0'
|
|
echo 'graph_category db'
|
|
echo 'graph_info Shows active locks on database server.'
|
|
echo 'graph_scale no'
|
|
echo 'graph_title PostgreSQL Active Locks'
|
|
echo 'graph_vlabel Number of active locks'
|
|
for mode in $modes; do
|
|
echo $mode.label $mode
|
|
echo $mode.info `echo $mode | perl -pe 's/(.)([A-Z])/$1 $2/g'` Lock.
|
|
done
|
|
exit 0
|
|
fi
|
|
|
|
for mode in $modes; do
|
|
eval ${mode}=0
|
|
done
|
|
|
|
eval $(psql -h ${dbserver} -U ${dbuser} template1 -tc "SELECT trim(mode, 'Lock'), COUNT(*) FROM pg_locks GROUP BY mode ORDER BY 1;" | while read name sep num
|
|
do
|
|
test -z "${name}" && continue
|
|
echo ${name}=${num}
|
|
done)
|
|
|
|
for mode in $modes; do
|
|
echo ${mode}.value $(eval echo \$$mode)
|
|
done
|
|
|