Redis Sentinel Configuration

Sentinel.conf

## --------------------------------------

Port 26379

Dir/tmp

# Sentinel Monitor <master-name> <ip> <redis-port> <quorum>

# Master-name: cannot contain special characters, custom master name

# Ip:redis Master IP

# Redis-port:redis Master Port

# Quorum: Objective down at least multiple sentinel agree

# tells Sentinel to monitor this master, and to consider it in O_down

# (objectively down) state only if at least <quorum> Sentinels agree.

#

# Note that whatever is the Odown quorum, a Sentinel would require to

# be elected by the majority of the known Sentinels in order to

# Start a failover, so no failover can is performed in minority.

#

# slaves is auto-discovered, so you don ' t need to specify slaves in

# any. Sentinel itself would rewrite this configuration file adding

# The slaves using additional configuration options.

# Also Note that the configuration file was rewritten when a

# Slave is promoted to master.

#

# Note:master name should not include special characters or spaces.

# The valid charset is a-Z 0-9 and the three characters ".-_".

Sentinel Monitor MyMaster 127.0.0.1 6379 2

Sentinel Auth-pass MyMaster Admin

Sentinel Down-after-milliseconds MyMaster 30000

# Sentinel Parallel-syncs <master-name> <numslaves>

#

# How many slaves we can reconfigure to the new slave simultaneously

# during the failover. Use a low number if you use the slaves to serve query

# to avoid this all the slaves would be unreachable at about the same

# time while performing the synchronization with the master.

Sentinel Parallel-syncs MyMaster 1

Sentinel Failover-timeout MyMaster 180000

## ---------------------

Sentinel Startup script:

#!/bin/bash

#

# Redis-sentinel-this script starts and stops the Redis-sentinel daemon

#

# Chkconfig:-80 12

# Description:redis is a persistent key-value database

# Processname:redis-server

# config:/etc/redis/redis.conf

# Pidfile:/var/run/redis.pid

Source/etc/init.d/functions

Bin= "/usr/local/redis/bin"

Config= "/usr/local/redis/etc/sentinel.conf"

Pidfile= "/var/run/redis-sentinel.pid"

# # Read Configuration

[-R "$SYSCONFIG"] && source "$SYSCONFIG"

Retval=0

Prog= "Redis-sentinel"

desc= "Redis Sentinel"

Start () {

If [-e $PIDFILE];then

echo "$desc already running ..."

Exit 1

Fi

Echo-n $ "Starting $desc:"

Daemon $BIN/$prog $CONFIG--sentinel 2>&1 >>/var/log/messages &

Retval=$?

Echo

[$RETVAL-eq 0] && touch/var/lock/subsys/$prog

Return $RETVAL

}

Stop () {

Echo-n $ "Stop $desc:"

Killproc $prog

Retval=$?

Echo

[$RETVAL-eq 0] && rm-f/var/lock/subsys/$prog $PIDFILE

Return $RETVAL

}

Restart () {

Stop

Start

}

Case "$" in

Start

Start

;;

Stop

Stop

;;

Restart

Restart

;;

*)

echo $ "Usage: $ {Start|stop|restart}"

Retval=1

Esac

Exit $RETVAL

Redis Sentinel Configuration