Initial commit
This commit is contained in:
Benjamin Renard
commit
3a062b2852
2 changed files with 161 additions and 0 deletions
1
.gitignore
vendored
Normal file
1
.gitignore
vendored
Normal file
|
|
@ -0,0 +1 @@
|
||||||
|
*~
|
||||||
160
check_pg_streaming_replication
Executable file
160
check_pg_streaming_replication
Executable file
|
|
@ -0,0 +1,160 @@
|
||||||
|
#!/bin/bash
|
||||||
|
#
|
||||||
|
# Nagios plugin to check Postgresql streamin replication state
|
||||||
|
#
|
||||||
|
# Could be use on Master or on standby node
|
||||||
|
#
|
||||||
|
# Requirement :
|
||||||
|
#
|
||||||
|
# On master node : Slaves must be able to connect with user PG_USER
|
||||||
|
# to database postgres as trust
|
||||||
|
#
|
||||||
|
# On standby node : PG_USER must be able to connect localy as trust
|
||||||
|
#
|
||||||
|
# Author : Benjamin Renard <brenard@easter-eggs.com>
|
||||||
|
# Date : Wed, 14 Mar 2012 14:45:55 +0000
|
||||||
|
# Source : http://git.zionetrix.net/check_pg_streaming_replication
|
||||||
|
#
|
||||||
|
|
||||||
|
PG_USER=postgres
|
||||||
|
PSQL_BIN=/usr/bin/psql
|
||||||
|
PG_MAIN=/var/lib/postgresql/9.1/main
|
||||||
|
RECOVERY_CONF=$PG_MAIN/recovery.conf
|
||||||
|
PG_DEFAULT_PORT=5432
|
||||||
|
|
||||||
|
DEBUG=0
|
||||||
|
[ "$1" == "-d" ] && DEBUG=1
|
||||||
|
|
||||||
|
function psql_get () {
|
||||||
|
echo "$1"|su - $PG_USER -c "$PSQL_BIN -t -P format=unaligned"
|
||||||
|
}
|
||||||
|
|
||||||
|
function debug() {
|
||||||
|
if [ $DEBUG -eq 1 ]
|
||||||
|
then
|
||||||
|
echo "[DEBUG] $1"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Postgres is running ?
|
||||||
|
if [ $DEBUG -eq 0 ]
|
||||||
|
then
|
||||||
|
psql_get '\q' 2> /dev/null
|
||||||
|
else
|
||||||
|
psql_get '\q'
|
||||||
|
fi
|
||||||
|
if [ $? -ne 0 ]
|
||||||
|
then
|
||||||
|
echo "CRITICAL : Postgres is not running !"
|
||||||
|
exit 2
|
||||||
|
fi
|
||||||
|
debug "Postgres is running"
|
||||||
|
|
||||||
|
RECOVERY_MODE=0
|
||||||
|
[ $( psql_get 'SELECT pg_is_in_recovery();' ) == "t" ] && RECOVERY_MODE=1
|
||||||
|
|
||||||
|
if [ -f $RECOVERY_CONF ]
|
||||||
|
then
|
||||||
|
debug "File recovery.conf found. Hot-standby mode."
|
||||||
|
|
||||||
|
# Check recovery mode
|
||||||
|
if [ $RECOVERY_MODE -ne 1 ]
|
||||||
|
then
|
||||||
|
echo "CRITICAL : Not in recovery mode while recovery.conf file found !"
|
||||||
|
exit 2
|
||||||
|
fi
|
||||||
|
debug "Postgres is in recovery mode"
|
||||||
|
|
||||||
|
LAST_XLOG_RECEIVE=$( psql_get "SELECT pg_last_xlog_receive_location()" )
|
||||||
|
debug "Last xlog file receive : $LAST_XLOG_RECEIVE"
|
||||||
|
LAST_XLOG_REPLAY=$( psql_get "SELECT pg_last_xlog_replay_location()" )
|
||||||
|
debug "Last xlog file replay : $LAST_XLOG_REPLAY"
|
||||||
|
|
||||||
|
|
||||||
|
# Get master connection informations from recovery.conf file
|
||||||
|
MASTER_CONN_INFOS=$( egrep '^ *primary_conninfo' $RECOVERY_CONF|sed "s/^ *primary_conninfo *= *[\"\']\([^\"\']*\)[\"\'].*$/\1/" )
|
||||||
|
if [ ! -n "$MASTER_CONN_INFOS" ]
|
||||||
|
then
|
||||||
|
echo "UNKNOWN : Can't retreive master connection informations form recovery.conf file"
|
||||||
|
exit 3
|
||||||
|
fi
|
||||||
|
debug "Master connection informations : $MASTER_CONN_INFOS"
|
||||||
|
|
||||||
|
M_HOST=$( echo "$MASTER_CONN_INFOS"|sed 's/^.*host= *\([^ ]*\) *.*$/\1/' )
|
||||||
|
if [ ! -n "$M_HOST" ]
|
||||||
|
then
|
||||||
|
echo "UNKNOWN : Can't retreive master host from recovery.conf file"
|
||||||
|
exit 3
|
||||||
|
fi
|
||||||
|
debug "Master host : $M_HOST"
|
||||||
|
|
||||||
|
M_PORT=$( echo "$MASTER_CONN_INFOS"|sed 's/^.*port= *\([^ ]*\) *.*$/\1/' )
|
||||||
|
if [ ! -n "$M_PORT" ]
|
||||||
|
then
|
||||||
|
debug "Master port not specify, use default : $PG_DEFAULT_PORT"
|
||||||
|
M_PORT=$PG_DEFAULT_PORT
|
||||||
|
else
|
||||||
|
debug "Master port : $M_PORT"
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Get current xlog file from master
|
||||||
|
M_CUR_XLOG="$( echo 'SELECT pg_current_xlog_location()'|su - $PG_USER -c "$PSQL_BIN -h $M_HOST -p $M_PORT -t -P format=unaligned" )"
|
||||||
|
if [ ! -n "$M_CUR_XLOG" ]
|
||||||
|
then
|
||||||
|
echo "UNKNOWN : Can't retreive current xlog from master server"
|
||||||
|
exit 3
|
||||||
|
fi
|
||||||
|
debug "Master current xlog : $M_CUR_XLOG"
|
||||||
|
|
||||||
|
# Master current xlog is the last receive xlog ?
|
||||||
|
if [ "$M_CUR_XLOG" != "$LAST_XLOG_RECEIVE" ]
|
||||||
|
then
|
||||||
|
echo "CRITICAL : Master current xlog is not the last receive xlog"
|
||||||
|
exit 2
|
||||||
|
fi
|
||||||
|
debug "Master current xlog is the last receive xlog"
|
||||||
|
|
||||||
|
# The last receive xlog is the last replay file ?
|
||||||
|
if [ "$LAST_XLOG_RECEIVE" != "$LAST_XLOG_REPLAY" ]
|
||||||
|
then
|
||||||
|
echo "WARNING : last receive xlog file is not the last replay file"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
debug "Last receive xlog file is the last replay file"
|
||||||
|
|
||||||
|
echo "OK : Hot-standby server is uptodate"
|
||||||
|
exit 0
|
||||||
|
else
|
||||||
|
debug "File recovery.conf not found. Master mode."
|
||||||
|
|
||||||
|
# Check recovery mode
|
||||||
|
if [ $RECOVERY_MODE -eq 1 ]
|
||||||
|
then
|
||||||
|
echo "CRITICAL : In recovery mode while recovery.conf file not found !"
|
||||||
|
exit 2
|
||||||
|
fi
|
||||||
|
debug "Postgres is not in recovery mode"
|
||||||
|
|
||||||
|
# Check standby client
|
||||||
|
STANDBY_CLIENTS=$( psql_get "SELECT client_addr, sync_state FROM pg_stat_replication;" )
|
||||||
|
if [ ! -n "$STANDBY_CLIENTS" ]
|
||||||
|
then
|
||||||
|
echo "WARNING : no stand-by client connected"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
debug "Stand-by client(s) : $( echo -n $STANDBY_CLIENTS|sed 's/\n/ , /g' )"
|
||||||
|
|
||||||
|
STANDBY_CLIENTS_TXT=""
|
||||||
|
STANDBY_CLIENTS_COUNT=0
|
||||||
|
for line in $STANDBY_CLIENTS
|
||||||
|
do
|
||||||
|
let STANDBY_CLIENTS_COUNT=STANDBY_CLIENTS_COUNT+1
|
||||||
|
|
||||||
|
IP=$( echo $line|cut -d '|' -f 1 )
|
||||||
|
MODE=$( echo $line|cut -d '|' -f 2 )
|
||||||
|
STANDBY_CLIENTS_TXT="$STANDBY_CLIENTS_TXT $IP (mode=$MODE)"
|
||||||
|
done
|
||||||
|
|
||||||
|
echo "OK : $STANDBY_CLIENTS_COUNT stand-by client(s) connected - $STANDBY_CLIENTS_TXT"
|
||||||
|
exit 0
|
||||||
|
fi
|
||||||
Loading…
Reference in a new issue