Munin contributed plugins

#!/bin/bash

#

# Plugin to monitor PostgreSQL Tablespaces Size

#

# Author:

#    Guilherme Augusto da Rocha Silva <gars.dba@gmail.com>

#

# Created:

#    5th 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).

#    Recomended user is PostgreSQL database owner (default: postgres).

#

# Log info:

#

dbserver='localhost'

dbuser='postgres'

if [ "$1" = "config" ]; then

   echo 'graph_args --base 1024 --lower-limit 0'

   echo 'graph_category Postgresql'

   echo 'graph_info Shows each tablespace size on the PostgreSQL Server.'

   echo 'graph_title PostgreSQL Tablespace Sizes'

   echo 'graph_vlabel Size (bytes)'

   psql -h ${dbserver} -U ${dbuser} -tc "SELECT spcname FROM pg_tablespace ORDER BY 1;" | while read name

   do

      test -z "${name}" && continue

      echo ${name}'.label '${name}

      echo ${name}'.type GAUGE'

      if [ "${name}" == "pg_global" ]; then

         echo ${name}'.info Tablespace for shared system catalogs.'

      elif [ "${name}" == "pg_default" ]; then

         echo ${name}'.info Default tablespace of the template1 and template0 databases (and, therefore, the default tablespace for other databases, unless user defined ones).'

      else

         echo ${name}'.info User defined tablespace.'

      fi

   done

   exit 0

fi

psql -h ${dbserver} -U ${dbuser} -tc "SELECT spcname, PG_TABLESPACE_SIZE(oid) FROM pg_tablespace ORDER BY 1;" | while read name sep num

do

   test -z "${name}" && continue

   echo ${name}'.value '${num}

done