redis 哨兵

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一主2从，3个sentinel

redis主 配置文件

bind 0.0.0.0
protected-mode no
port 6379
tcp-backlog 2048
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile "/redisdata/redis_6379.pid"
loglevel notice
logfile "/redisdata/redis-server.log"
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename "dump.rdb"
dir "/redisdata"
masterauth "6S9rpmPQxAbvdyKV"
requirepass "6S9rpmPQxAbvdyKV"

replica-serve-stale-data yes

replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes

redis 从的配置

replicaof 10.102.0.34 6379

bind 0.0.0.0
protected-mode no
port 6379
tcp-backlog 2048
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile "/redisdata/redis_6379.pid"
loglevel notice
logfile "/redisdata/redis-server.log"
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename "dump.rdb"
dir "/redisdata"
masterauth "6S9rpmPQxAbvdyKV"
requirepass "6S9rpmPQxAbvdyKV"

replica-serve-stale-data yes

replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes

启动脚本  redis-server

#!/bin/bash
#
# redis - this script starts and stops the redis-server daemon
#
# chkconfig: - 85 15
# description: Redis is a persistent key-value database
# processname: redis-server
# config: /usr/local/redis/etc/redis.conf
# config: /etc/sysconfig/redis
# pidfile: /usr/local/redis/var/redis-server.pid

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

redis="/usr/local/redis/src/redis-server"
prog=$(basename $redis)

REDIS_CONF_FILE="/usr/local/redis/etc/redis.conf"

[ -f /etc/sysconfig/redis ] && . /etc/sysconfig/redis

lockfile=/var/lock/subsys/redis-server

start() {
[ -x $redis ] || exit 5
[ -f $REDIS_CONF_FILE ] || exit 6
echo -n $"Starting $prog: "
daemon $redis $REDIS_CONF_FILE
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}

stop() {
echo -n $"Stopping $prog: "
killproc $prog
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}

restart() {
stop
start
}

reload() {
echo -n $"Reloading $prog: "
killproc $redis -HUP
RETVAL=$?
echo
}

force_reload() {
restart
}

rh_status() {
status $prog
}

rh_status_q() {
rh_status >/dev/null 2>&1
}

case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart)
$1
;;
reload)
rh_status_q || exit 7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
exit 2
esac

启动三台  ./redis-server start

查看状态

redis-cli  -h 10.102.0.33  -p 6379 -a 6S9rpmPQxAbvdyKV  info 

redis-cli  -h 10.102.0.34  -p 6379 -a 6S9rpmPQxAbvdyKV  info 

redis-cli  -h 10.102.0.35  -p 6379 -a 6S9rpmPQxAbvdyKV  info 

角色和主从的状态

安装sentinel，

三台一样的sentinel.conf

port 26379
pidfile "/usr/local/redis/var/redis-sentinel.pid"
dir "/usr/local/redis/data/sentinel"
daemonize yes
protected-mode no
logfile "/usr/local/redis/var/redis-sentinel.log"
sentinel myid 453a6c2a79774552bb7995661534da0cbf85caff
sentinel deny-scripts-reconfig yes
sentinel monitor redisMaster 10.102.0.34 6379 2
sentinel down-after-milliseconds redisMaster 10000
sentinel failover-timeout redisMaster 60000
sentinel auth-pass redisMaster 6S9rpmPQxAbvdyKV

启动

sentinel  /usr/local/redis/etc/sentinel.conf

查看三台的状态

[root@redis_1 init.d]# redis-cli -h 10.102.0.33 -p 26379 info Sentinel

# Sentinel
sentinel_masters:1
sentinel_tilt:0
sentinel_running_scripts:0
sentinel_scripts_queue_length:0
sentinel_simulate_failure_flags:0
master0:name=redisMaster,status=ok,address=10.102.0.34:6379,slaves=2,sentinels=3
[root@redis_1 init.d]#

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