本文最后更新于 225 天前，其中的信息可能已经有所发展或是发生改变。

系统环境

本机为单机模式部署，多机配置雷同，直接迁移到不同机器即可
10.0.1.101 均为本机内网IP
系统Ubuntu20.04
redis版本为2023-11-30下载的官方版本 redis-stack-server-7.2.0-v6.focal.x86_64.tar.gz

下载Redis

mkdir -p ~/redis && cd ~/redis
wget -O redis-stack-server-7.2.0-v6.focal.x86_64.tar.gz "https://packages.redis.io/redis-stack/redis-stack-server-7.2.0-v6.focal.x86_64.tar.gz?_gl=1*1erwsy9*_ga*ODY3MTMwMjYzLjE2OTY5MzA3NTc.*_ga_8BKGRQKRPV*MTcwMTMxMTcyNS4yLjEuMTcwMTMxMTczOS40Ni4wLjA.*_gcl_au*NDY3ODMzMzAuMTY5NjkzMDc1Nw.."
tar -zxvf redis-stack-server-7.2.0-v6.focal.x86_64.tar.gz
cp -pr redis-stack-server-7.2.0-v6 /usr/local/redis1
cp -pr redis-stack-server-7.2.0-v6 /usr/local/redis2
cp -pr redis-stack-server-7.2.0-v6 /usr/local/redis3

配置1

redis.conf

/usr/local/redis1/bin/redis.conf

port 6379
daemonize no
protected-mode no
logfile "/usr/local/redis1/bin/redis.log"
pidfile "/usr/local/redis1/bin/redis.pid"
dir "/usr/local/redis1/bin"
maxclients 20000

sentinel.conf

/usr/local/redis1/bin/sentinel.conf

port 26379
daemonize no
protected-mode no
logfile "/usr/local/redis1/bin/sentine.log"
pidfile "/usr/local/redis1/bin/sentine.pid"
dir "/usr/local/redis1/bin"
sentinel monitor cluster1 10.0.1.101 6379 1
sentinel failover-timeout cluster1 20000

配置2

redis.conf

/usr/local/redis2/bin/redis.conf

port 6380
daemonize no
protected-mode no
logfile "/usr/local/redis2/bin/redis.log"
pidfile "/usr/local/redis2/bin/redis.pid"
dir "/usr/local/redis2/bin"
replicaof 10.0.1.101 6379
maxclients 20000

sentinel.conf

/usr/local/redis2/bin/sentinel.conf

port 26380
daemonize no
protected-mode no
logfile "/usr/local/redis2/bin/sentine.log"
pidfile "/usr/local/redis2/bin/sentine.pid"
dir "/usr/local/redis2/bin"
sentinel monitor cluster1 10.0.1.101 6379 1
sentinel failover-timeout cluster1 20000

配置3

redis.conf

/usr/local/redis3/bin/redis.conf

port 6381
daemonize no
protected-mode no
logfile "/usr/local/redis3/bin/redis.log"
pidfile "/usr/local/redis3/bin/redis.pid"
dir "/usr/local/redis3/bin"
replicaof 10.0.1.101 6379
maxclients 20000

sentinel.conf

/usr/local/redis3/bin/sentinel.conf

port 26381
daemonize no
protected-mode no
logfile "/usr/local/redis3/bin/sentine.log"
pidfile "/usr/local/redis3/bin/sentine.pid"
dir "/usr/local/redis3/bin"
sentinel monitor cluster1 10.0.1.101 6379 1
sentinel failover-timeout cluster1 20000

systemd – redis

redis1

vim /lib/systemd/system/redis1.service

[Unit]
Description=Redis1
After=network.target

[Service]
ExecStart=/usr/local/redis1/bin/redis-server /usr/local/redis1/bin/redis.conf --daemonize no
ExecStop=/usr/local/redis1/bin/redis-cli -h 127.0.0.1 -p 6379 shutdown

[Install]
WantedBy=multi-user.target

redis2

vim /lib/systemd/system/redis1.service

[Unit]
Description=Redis2
After=network.target redis1.service

[Service]
ExecStart=/usr/local/redis2/bin/redis-server /usr/local/redis2/bin/redis.conf --daemonize no
ExecStop=/usr/local/redis2/bin/redis-cli -h 127.0.0.1 -p 6379 shutdown

[Install]
WantedBy=multi-user.target

redis3

vim /lib/systemd/system/redis1.service

[Unit]
Description=Redis3
After=network.target redis2.service redis3.service

[Service]
ExecStart=/usr/local/redis3/bin/redis-server /usr/local/redis3/bin/redis.conf --daemonize no
ExecStop=/usr/local/redis3/bin/redis-cli -h 127.0.0.1 -p 6379 shutdown

[Install]
WantedBy=multi-user.target

启动redis1 2 3 进程

systemctl start redis1
systemctl start redis2
systemctl start redis3

查看端口监听情况

netstat -tunlp | grep redis
tcp        0      0 0.0.0.0:6379            0.0.0.0:*               LISTEN      25259/redis-server  
tcp        0      0 0.0.0.0:6381            0.0.0.0:*               LISTEN      25277/redis-server  
tcp        0      0 0.0.0.0:6380            0.0.0.0:*               LISTEN      25266/redis-server  
tcp6       0      0 :::6379                 :::*                    LISTEN      25259/redis-server  
tcp6       0      0 :::6381                 :::*                    LISTEN      25277/redis-server  
tcp6       0      0 :::6380                 :::*                    LISTEN      25266/redis-server

systemd – sentinel

sentinel1

/lib/systemd/system/sentinel1.service

[Unit]
Description=redis-sentinel
After=network.target

[Service]
ExecStart=/usr/local/redis1/bin/redis-sentinel /usr/local/redis1/bin/sentinel.conf --daemonize no
ExecStop=/usr/local/redis1/bin/redis-cli -h 127.0.0.1 -p 26379 shutdown

[Install]
WantedBy=multi-user.target

sentinel2

/lib/systemd/system/sentinel2.service

[Unit]
Description=redis-sentinel2
After=network.target sentinel1.service

[Service]
ExecStart=/usr/local/redis2/bin/redis-sentinel /usr/local/redis2/bin/sentinel.conf --daemonize no
ExecStop=/usr/local/redis2/bin/redis-cli -h 127.0.0.1 -p 26379 shutdown

[Install]
WantedBy=multi-user.target

sentinel3

/lib/systemd/system/sentinel3.service

[Unit]
Description=redis-sentinel3
After=network.target sentinel1.service sentinel2.service

[Service]
ExecStart=/usr/local/redis3/bin/redis-sentinel /usr/local/redis3/bin/sentinel.conf --daemonize no
ExecStop=/usr/local/redis3/bin/redis-cli -h 127.0.0.1 -p 26379 shutdown

[Install]
WantedBy=multi-user.target

启动sentinel1 2 3 进程

systemctl start sentinel1.service
systemctl start sentinel2.service
systemctl start sentinel3.service

查看端口监听

netstat -tunlp | grep sentinel

netstat -tunlp | grep -i redis-sentine
tcp        0      0 0.0.0.0:26379           0.0.0.0:*               LISTEN      25514/redis-sentine 
tcp        0      0 0.0.0.0:26381           0.0.0.0:*               LISTEN      25532/redis-sentine 
tcp        0      0 0.0.0.0:26380           0.0.0.0:*               LISTEN      25525/redis-sentine 
tcp6       0      0 :::26379                :::*                    LISTEN      25514/redis-sentine 
tcp6       0      0 :::26381                :::*                    LISTEN      25532/redis-sentine 
tcp6       0      0 :::26380                :::*                    LISTEN      25525/redis-sentine

检查Slave和哨兵状态

redis1 6379

cd /usr/local/redis1/bin

connected_slaves:2 两个slave已建立

./redis-cli -h 127.0.0.1 -p 6379 info replication
# Replication
role:master
connected_slaves:2
slave0:ip=10.0.1.101,port=6380,state=online,offset=23797,lag=1
slave1:ip=10.0.1.101,port=6381,state=online,offset=23797,lag=1
master_failover_state:no-failover
master_replid:4f0921aec8cfbb6159d9c44f9520512db8ae7006
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:24059
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:24059

slaves=2,sentinels=3

./redis-cli -h 127.0.0.1 -p 26379 info sentinel
# Sentinel
sentinel_masters:1
sentinel_tilt:0
sentinel_tilt_since_seconds:-1
sentinel_running_scripts:0
sentinel_scripts_queue_length:0
sentinel_simulate_failure_flags:0
master0:name=cluster1,status=ok,address=10.0.1.101:6379,slaves=2,sentinels=3

redis2 6380

./redis-cli -h 127.0.0.1 -p 6380 info replication
# Replication
role:slave
master_host:10.0.1.101
master_port:6379
master_link_status:up
master_last_io_seconds_ago:1
master_sync_in_progress:0
slave_read_repl_offset:58502
slave_repl_offset:58502
slave_priority:100
slave_read_only:1
replica_announced:1
connected_slaves:0
master_failover_state:no-failover
master_replid:4f0921aec8cfbb6159d9c44f9520512db8ae7006
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:58502
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:58502

测试

关闭redis1 结果

由此可见，关闭redis1之后，redis2会变成了master接管集群

systemctl stop redis1

./redis-cli -h 127.0.0.1 -p 6379 info replication
Could not connect to Redis at 127.0.0.1:6379: Connection refused

./redis-cli -h 127.0.0.1 -p 6380 info replication
# Replication
role:master
connected_slaves:1
slave0:ip=10.0.1.101,port=6381,state=online,offset=92299,lag=0
master_failover_state:no-failover
master_replid:4e8285f2779fc4dc25d31e1cdfbdc7fdaf65877e
master_replid2:4f0921aec8cfbb6159d9c44f9520512db8ae7006
master_repl_offset:92430
second_repl_offset:91753
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:92430

恢复redis1 结果

由此可见，redis1恢复之后，redis2依然为Master
systemctl start redis1

./redis-cli -h 127.0.0.1 -p 6379 info replication

Replication

role:slave
master_host:10.0.1.101
master_port:6380
master_link_status:up
master_last_io_seconds_ago:0
master_sync_in_progress:0
slave_read_repl_offset:104851
slave_repl_offset:104851
slave_priority:100
slave_read_only:1
replica_announced:1
connected_slaves:0
master_failover_state:no-failover
master_replid:4e8285f2779fc4dc25d31e1cdfbdc7fdaf65877e
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:104851
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:103912
repl_backlog_histlen:940

./redis-cli -h 127.0.0.1 -p 6380 info replication

Replication

role:master
connected_slaves:2
slave0:ip=10.0.1.101,port=6381,state=online,offset=105506,lag=0
slave1:ip=10.0.1.101,port=6379,state=online,offset=105520,lag=0
master_failover_state:no-failover
master_replid:4e8285f2779fc4dc25d31e1cdfbdc7fdaf65877e
master_replid2:4f0921aec8cfbb6159d9c44f9520512db8ae7006
master_repl_offset:105782
second_repl_offset:91753
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:105782


# 所有进程自启动

> 一切就绪后

```bash
systemctl enable redis1
systemctl enable redis2
systemctl enable redis3
systemctl enable sentinel1.service
systemctl enable sentinel2.service
systemctl enable sentinel3.service

系统环境

下载Redis

配置1

redis.conf

sentinel.conf

配置2

redis.conf

sentinel.conf

配置3

redis.conf

sentinel.conf

systemd – redis

redis1

redis2

redis3

启动redis1 2 3 进程

查看端口监听情况

systemd – sentinel

sentinel1

sentinel2

sentinel3

启动sentinel1 2 3 进程

查看端口监听

检查Slave和哨兵状态

redis1 6379

redis2 6380

测试

关闭redis1 结果

恢复redis1 结果

Replication

Replication

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