CentOS 7.3 Sentinel实现Redis集群高可用部署

三台机器：

10.149.151.81    master/Sentinel

10.149.151.82    slave1/Sentinel

10.149.151.83    slave2/Sentinel

一、初始化系统环境(三台均需操作)

echo "vm.overcommit_memory = 1"  >> /etc/sysctl.conf

sysctl -p

echo 1024 > /proc/sys/net/core/somaxconn

mkdir /data/redis/logs/ -p

mkdir /data/redis/rdb/ -p

二、redis的安装和配置文件统一修改

1.安装：

cd /usr/src/

wget http://download.redis.io/releases/redis-3.2.6.tar.gz
tar zxf redis-3.2.6.tar.gz

cd redis-3.2.6

make

make PREFIX=/usr/local/redis install

cat <<EOF> /etc/profile.d/redis.sh

export PATH=$PATH:/usr/local/redis/bin/

EOF

source /etc/profile.d/redis.sh

cp redis.conf /etc/

cp sentinel.conf /etc/

2.节点10.149.151.81

配置redis.conf

#bind 127.0.0.1

bind 127.0.0.1 10.149.151.81

protected-mode yes

port 6379

#tcp-backlog 511

tcp-backlog 1024

timeout 0

tcp-keepalive 300

#daemonize no

daemonize yes

supervised no

pidfile /var/run/redis_6379.pid

loglevel notice

logfile "/data/redis/logs/redis.log"

databases 16

save 900 1

save 300 10

save 60 10000

stop-writes-on-bgsave-error yes

rdbcompression yes

rdbchecksum yes

#dbfilename dump.rdb

dbfilename redis_dump.rdb

masterauth "123456aa"

#dir ./

dir "/data/redis/rdb/"

slave-serve-stale-data yes

slave-read-only yes

repl-diskless-sync no

repl-diskless-sync-delay 5

repl-disable-tcp-nodelay no

slave-priority 100

requirepass "123456aa"

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

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

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 256mb 64mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

aof-rewrite-incremental-fsync yes

######################################

2.节点10.149.151.82

配置redis.conf

bind 127.0.0.1 10.149.151.82

protected-mode yes

port 6379

tcp-backlog 1024

timeout 0

tcp-keepalive 300

daemonize no

#daemonize yes

supervised no

pidfile /var/run/redis_6379.pid

loglevel notice

logfile "/data/redis/logs/redis.log"

databases 16

save 900 1

save 300 10

save 60 10000

stop-writes-on-bgsave-error yes

rdbcompression yes

rdbchecksum yes

#dbfilename dump.rdb

dbfilename redis_dump.rdb

masterauth "123456aa"

#dir ./

dir "/data/redis/rdb/"

slave-serve-stale-data yes

slave-read-only yes

repl-diskless-sync no

repl-diskless-sync-delay 5

repl-disable-tcp-nodelay no

slave-priority 90

requirepass "123456aa"

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

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

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 256mb 64mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

aof-rewrite-incremental-fsync yes

slaveof 10.149.151.81 6379

######################################

2.节点10.149.151.83

配置redis.conf

bind 127.0.0.1 10.149.151.83

protected-mode yes

port 6379

tcp-backlog 1024

timeout 0

tcp-keepalive 300

daemonize no

supervised no

pidfile /var/run/redis_6379.pid

loglevel notice

logfile "/data/redis/logs/redis.log"

databases 16

save 900 1

save 300 10

save 60 10000

stop-writes-on-bgsave-error yes

rdbcompression yes

rdbchecksum yes

dbfilename redis_dump.rdb

masterauth "123456aa"

dir "/data/redis/rdb/"

slave-serve-stale-data yes

slave-read-only yes

repl-diskless-sync no

repl-diskless-sync-delay 5

repl-disable-tcp-nodelay no

slave-priority 95

requirepass "123456aa"

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

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

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 256mb 64mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

aof-rewrite-incremental-fsync yes

slaveof 10.149.151.81 6379

################################

3.三台机器配置sentinel.conf

port 26379

daemonize yes

protected-mode no

dir "/data/redis/logs"

logfile "sentinel.log"

sentinel monitor mymaster 10.149.151.81 6379 2

sentinel down-after-milliseconds mymaster 5000

sentinel failover-timeout mymaster 15000

sentinel parallel-syncs mymaster 1

sentinel auth-pass mymaster 123456aa

#####################################

4.启动redis，sentinel

master启动redis：

redis-server /etc/redis.conf &

三台均启动sentinel：

redis-sentinel /etc/sentinel.conf &

slave依次启动redis：

redis-server /etc/redis.conf &

5.验证：

连接：

redis-cli -h 10.149.151.81 -a 123456aa

查看信息：

info Replication

6.附命令：

停止redis：

redis-cli -h 10.149.151.81 -a 123456aa shutdown