Redis+Sentinel集群安装与配置

1、安装环境

集群机器                                    redis服务                             哨兵(sentinel)                描述

虚拟机：10.202.107.207    redis服务端口6379          sentinel服务端口26379           主节点

虚拟机：10.202.107.208    redis服务端口6379          sentinel服务端口26379           从节点

虚拟机：10.202.107.209    redis服务端口6379           sentinel服务端口26379          从节点

即：3个redis服务（1主2从），3个sentinel服务

2、Redis安装（请参照Redis安装）

3、Redis主从配置

  3.1、创建目录

mkdir conf
mkdir run
mkdir logs
mkdir data
mkdir sentinel

 虚拟机：10.202.107.207 redis.conf配置文件：

daemonize yes
pidfile /usr/dev/redis/redis-4.0.1/run/redis.pid
port 6379
tcp-backlog 511
bind 10.202.107.207
timeout 180
tcp-keepalive 60
loglevel notice
logfile /usr/dev/redis/redis-4.0.1/logs/redis.log
databases 16
save 900 1
save 300 10
save 60 100
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename its_redis.rdb
dir /usr/dev/redis/redis-4.0.1/data
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 123456
maxclients 1000
maxmemory 4096mb
maxmemory-policy volatile-lru
maxmemory-samples 3
appendonly no
appendfilename its_redis.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-entries 512
list-max-ziplist-value 64
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
masterauth 123456

  虚拟机：10.202.107.208 redis.conf配置文件：

daemonize yes
pidfile /usr/dev/redis/redis-4.0.1/run/redis.pid
port 6379
tcp-backlog 511
bind 10.202.107.208
timeout 180
tcp-keepalive 60
loglevel notice
logfile /usr/dev/redis/redis-4.0.1/logs/redis.log
databases 16
save 900 1
save 300 10
save 60 100
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename its_redis.rdb
dir /usr/dev/redis/redis-4.0.1/data
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 123456
maxclients 1000
maxmemory 4096mb
maxmemory-policy volatile-lru
maxmemory-samples 3
appendonly no
appendfilename its_redis.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-entries 512
list-max-ziplist-value 64
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
masterauth 123456
slaveof 10.202.107.207 6379

   虚拟机：10.202.107.209 redis.conf配置文件：

 

daemonize yes
pidfile /usr/dev/redis/redis-4.0.1/run/redis.pid
port 6379
tcp-backlog 511
bind 10.202.107.209
timeout 180
tcp-keepalive 60
loglevel notice
logfile /usr/dev/redis/redis-4.0.1/logs/redis.log
databases 16
save 900 1
save 300 10
save 60 100
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename its_redis.rdb
dir /usr/dev/redis/redis-4.0.1/data
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 123456
maxclients 1000
maxmemory 4096mb
maxmemory-policy volatile-lru
maxmemory-samples 3
appendonly no
appendfilename its_redis.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-entries 512
list-max-ziplist-value 64
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
masterauth 123456
slaveof 10.202.107.207 6379

  相关命令：

 

1.查看redis进程
ps -ef|grep redis
2.启动redis server
./src/redis-server redis.conf 
3.启动redis Client
./src/redis-cli -h 10.202.107.207 -p 6379 -a 123456
4.输入密码
10.202.107.207:6379> auth 123456 
5.查看信息
info

 

查看主从关系

./src/redis-cli -h 10.202.107.207 -p 6379 -a 123456

 

10.202.107.207:6379> info replication

主从切换

主服务挂掉了后从执行,将从切换为主：

./src/redis-cli -p 6380 slaveof NO ONE

主恢复后从执行：

./src/redis-cli -p 6380 slaveof 10.202.107.207 6379

4、Sentinel主从配置

 虚拟机：10.202.107.207 sentinel.conf配置文件：

 

# 守护进程模式，即后台模式
daemonize yes
port 26379
bind 10.202.107.207
sentinel monitor its_sentinel 10.202.107.207 6379 2#2表示在sentinel集群中只要有两个节点检测到redis主节点出故障就进行切换，单sentinel节点无效
#指定工作目录  
dir "/usr/dev/redis/redis-4.0.1/sentinel"
pidfile "/usr/dev/redis/redis-4.0.1/run/sentinel.pid"
#日志级别
loglevel notice
logfile "/usr/dev/redis/redis-4.0.1/logs/sentinel.log"

#如果6秒后,master仍没活过来，则启动failover  
sentinel failover-timeout its_sentinel 60000
#redis主节点密码  
sentinel auth-pass its_sentinel 123456
#选项指定了在执行故障转移时， 最多可以有多少个从服务器同时对新的主服务器进行同步， 这个数字越小， 完成故障转移所需的时间就
sentinel config-epoch its_sentinel 0
sentinel leader-epoch its_sentinel 0
sentinel current-epoch 1
sentinel announce-ip "10.202.107.207"

 

 虚拟机：10.202.107.208 sentinel.conf配置文件：

 

# 守护进程模式，即后台模式
daemonize yes
port 26379
bind 10.202.107.208
sentinel monitor its_sentinel 10.202.107.207 6379 2#2表示在sentinel集群中只要有两个节点检测到redis主节点出故障就进行切换，单sentinel节点无效
#指定工作目录  
dir "/usr/dev/redis/redis-4.0.1/sentinel"
pidfile "/usr/dev/redis/redis-4.0.1/run/sentinel.pid"
#日志级别
loglevel notice
logfile "/usr/dev/redis/redis-4.0.1/logs/sentinel.log"

#如果6秒后,master仍没活过来，则启动failover  
sentinel failover-timeout its_sentinel 60000
#redis主节点密码  
sentinel auth-pass its_sentinel 123456
#选项指定了在执行故障转移时， 最多可以有多少个从服务器同时对新的主服务器进行同步， 这个数字越小， 完成故障转移所需的时间就
sentinel config-epoch its_sentinel 0
sentinel leader-epoch its_sentinel 0
sentinel current-epoch 1
sentinel announce-ip "10.202.107.208"

 

 虚拟机：10.202.107.209 sentinel.conf配置文件：

 

# 守护进程模式，即后台模式
daemonize yes
port 26379
bind 10.202.107.209
sentinel monitor its_sentinel 10.202.107.207 6379 2#2表示在sentinel集群中只要有两个节点检测到redis主节点出故障就进行切换，单sentinel节点无效
#指定工作目录  
dir "/usr/dev/redis/redis-4.0.1/sentinel"
pidfile "/usr/dev/redis/redis-4.0.1/run/sentinel.pid"
#日志级别
loglevel notice
logfile "/usr/dev/redis/redis-4.0.1/logs/sentinel.log"

#如果6秒后,master仍没活过来，则启动failover  
sentinel failover-timeout its_sentinel 60000
#redis主节点密码  
sentinel auth-pass its_sentinel 123456
#选项指定了在执行故障转移时， 最多可以有多少个从服务器同时对新的主服务器进行同步， 这个数字越小， 完成故障转移所需的时间就
sentinel config-epoch its_sentinel 0
sentinel leader-epoch its_sentinel 0
sentinel current-epoch 1
sentinel announce-ip "10.202.107.209"

   启动sentinel服务： ./src/redis-sentinel ./conf/sentinel.conf