PostgreSQL 监控脚本[from zabbix.org]

zabbix是一个非常好的监控平台软件，通过编写被监控目标的脚步实现对目标的监控。

下面是PostgreSQL的一个监控脚步：（可以在此基础之上进行修改）

原文地址

http://www.zabbix.com/forum/showthread.php?t=8009

#! /bin/bash

#

# Name: zapost

#

# Checks PostgreSQL activity.

#

# Author: bashman

#

# Version: 1.0

#

zapostver="1.0"

rval=0

sql=""

case $1 in

#'summary')

# sql="select a.datname, pg_size_pretty(pg_database_size(a.datid)) as size, cast(blks_hit/(blks_read+blks_hit+0.000001)*100.0 as numeric(5,2)) as cache, cast(xact_commit/(xact_rollback+xact_commit+0.000001)*100.0 as numeric(5,2)) as success from pg_stat_database
a order by a.datname"

# ;;

#'size')

#comprobar aqui los parametros

# shift

# sql="select pg_database_size('$1') as size"

# ;;

#'version')

# sql='select version()'

# ;;

'totalsize')

sql="select sum(pg_database_size(datid)) as total_size from pg_stat_database"

;;

'db_cache')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select cast(blks_hit/(blks_read+blks_hit+0.000001)*100.0 as numeric(5,2)) as cache from pg_stat_database where datname = '$1'"

fi

;;

'db_success')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select cast(xact_commit/(xact_rollback+xact_commit+0.000001)*100.0 as numeric(5,2)) as success from pg_stat_database where datname = '$1'"

fi

;;

'server_processes')

sql="select sum(numbackends) from pg_stat_database"

;;

'tx_commited')

sql="select sum(xact_commit) from pg_stat_database"

;;

'tx_rolledback')

sql="select sum(xact_rollback) from pg_stat_database"

;;

'db_size')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select pg_database_size('$1')" #as size"

fi

;;

'db_connections')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select numbackends from pg_stat_database where datname = '$1'"

fi

;;

'db_returned')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select tup_returned from pg_stat_database where datname = '$1'"

fi

;;

'db_fetched')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select tup_fetched from pg_stat_database where datname = '$1'"

fi

;;

'db_inserted')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select tup_inserted from pg_stat_database where datname = '$1'"

fi

;;

'db_updated')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select tup_updated from pg_stat_database where datname = '$1'"

fi

;;

'db_deleted')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select tup_deleted from pg_stat_database where datname = '$1'"

fi

;;

'db_commited')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select xact_commit from pg_stat_database where datname = '$1'"

fi

;;

'db_rolled')

# comprueba los parametros

if [ ! -z $2 ]; then

shift

sql="select xact_rollback from pg_stat_database where datname = '$1'"

fi

;;

'version')

sql="version"

;;

'zapostver')

echo "$zapostver"

exit $rval

;;

*)

echo "zapost version: $zapostver"

echo "usage:"

echo " $0 total size -- Check the total databases size."

echo " $0 db_cache <dbname> -- Check the database cache hit ratio (percentage)."

echo " $0 db_success <dbname> -- Check the database success rate (percentage)."

echo " $0 server_processes -- Check the total number of Server Processes that are active."

echo " $0 tx_commited -- Check the total number of commited transactions."

echo " $0 tx_rolledback -- Check the total number of rolled back transactions."

echo " $0 db_size <dbname> -- Check the size of a Database (in bytes)."

echo " $0 db_connections <dbname> -- Check the number of active connections for a specified database."

echo " $0 db_returned <dbname> -- Check the number of tuples returned for a specified database."

echo " $0 db_fetched <dbname> -- Check the number of tuples fetched for a specified database."

echo " $0 db_inserted <dbname> -- Check the number of tuples inserted for a specified database."

echo " $0 db_updated <dbname> -- Check the number of tuples updated for a specified database."

echo " $0 db_deleted <dbname> -- Check the number of tuples deleted for a specified database."

echo " $0 db_commited <dbname> -- Check the number of commited back transactions for a specified database."

echo " $0 db_rolled <dbname> -- Check the number of rolled back transactions for a specified database."

echo " $0 version -- The PostgreSQL version."

echo " $0 zapostver -- Version of this script."

exit $rval

;;

esac

if [ "$sql" != "" ]; then

if [ "$sql" == "version" ]; then

psql --version|head -n1

rval=$?

else

psql -t -c "$sql"

rval=$?

fi

fi

if [ "$rval" -ne 0 ]; then

echo "ZBX_NOTSUPPORTED"

fi

exit $rval

#

# end zapost