实践环境

系统环境：debian12
redis版本：redis-7.2.3
单台服务器多实例(实用环境可以分布部署到多台服务器)

基本安装

## 安装编译依赖
root@master-100:~# apt update && apt upgrade -y && apt install build-essential

## 下载源码包
root@master-100:~# wget -c https://github.com/redis/redis/archive/7.2.3.tar.gz

## 解压并进入目录
root@master-100:~# tar xf 7.2.3.tar.gz 
root@master-100:~# ls
7.2.3.tar.gz  app  redis-7.2.3
root@master-100:~# cd redis-7.2.3/
root@master-100:~/redis-7.2.3# ls
00-RELEASENOTES     COPYING   MANIFESTO   runtest-cluster    sentinel.conf  utils
BUGS                deps      README.md   runtest-moduleapi  src
CODE_OF_CONDUCT.md  INSTALL   redis.conf  runtest-sentinel   tests
CONTRIBUTING.md     Makefile  runtest     SECURITY.md        TLS.md

## 编译并安装
root@master-100:~/redis-7.2.3# make -j$(nproc) && make PREFIX=/usr/local/redis install

## 查看
root@master-100:/usr/local/redis# ls -l bin
total 28916
-rwxr-xr-x 1 root root  6767520 Dec 30 15:17 redis-benchmark
lrwxrwxrwx 1 root root       12 Dec 30 15:17 redis-check-aof -> redis-server
lrwxrwxrwx 1 root root       12 Dec 30 15:17 redis-check-rdb -> redis-server
-rwxr-xr-x 1 root root  7043224 Dec 30 15:17 redis-cli
lrwxrwxrwx 1 root root       12 Dec 30 15:17 redis-sentinel -> redis-server
-rwxr-xr-x 1 root root 15792848 Dec 30 15:17 redis-server

## 创建必要目录
root@master-100:/usr/local/redis# mkdir data etc log run && ls
bin  data  etc  log  run

## 使用脚本安装实例，注释脚本
root@master-100:~/redis-7.2.3/utils# sed -n '76,84p' install_server.sh 
#bail if this system is managed by systemd
#_pid_1_exe="$(readlink -f /proc/1/exe)"
#if [ "${_pid_1_exe##*/}" = systemd ]
#then
#	echo "This systems seems to use systemd."
#	echo "Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!"
#	exit 1
#fi
#unset _pid_1_exe

## 执行脚本
root@master-100:~/redis-7.2.3/utils# ./install_server.sh 
Welcome to the redis service installer
This script will help you easily set up a running redis server

Please select the redis port for this instance: [6379] 
Selecting default: 6379
Please select the redis config file name [/etc/redis/6379.conf] /usr/local/redis/etc/6379.conf
Please select the redis log file name [/var/log/redis_6379.log] /usr/local/redis/log/6379.log
Please select the data directory for this instance [/var/lib/redis/6379] /usr/local/redis/data/6379
Please select the redis executable path [/usr/local/redis/bin/redis-server] /usr/local/redis/bin/redis-server
Selected config:
Port           : 6379
Config file    : /usr/local/redis/etc/6379.conf
Log file       : /usr/local/redis/log/6379.log
Data dir       : /usr/local/redis/data/6379
Executable     : /usr/local/redis/bin/redis-server
Cli Executable : /usr/local/redis/bin/redis-cli
Is this ok? Then press ENTER to go on or Ctrl-C to abort.
Copied /tmp/6379.conf => /etc/init.d/redis_6379
Installing service...
Success!
Starting Redis server...
Installation successful!

## 修改启动脚本
root@test:/usr/local/redis# cat /etc/init.d/redis_6379 |grep shutdown
            $CLIEXEC -p $REDISPORT -a 123456 --no-auth-warning shutdown  ## 设置密码后修改此行
                echo "Waiting for Redis to shutdown ..."
root@test:/usr/local/redis# cat /etc/init.d/redis_6379 |grep pid
PIDFILE=/usr/local/redis/run/6379.pid

## 环境变量
root@master-100:/usr/local/redis# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/elastic/jdk/bin:/usr/local/node/bin:/usr/local/mysql/bin:/usr/local/mongo/bin:/usr/local/redis/bin

## 启动查看
root@master-100:/usr/local/redis# /etc/init.d/redis_6379 start
root@master-100:/usr/local/redis# netstat -lnpt | grep redis
tcp        0      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      6251/redis-server 1 
tcp6       0      0 ::1:6379                :::*                    LISTEN      6251/redis-server 1

基本配置文件示例

6379.conf

bind 0.0.0.0
protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize yes
pidfile "/usr/local/redis/run/6379.pid"
loglevel notice
logfile "/usr/local/redis/log/6379.log"
databases 16
always-show-logo no
set-proc-title yes
proc-title-template "{title} {listen-addr} {server-mode}"
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename "dump.rdb"
rdb-del-sync-files no
dir "/usr/local/redis/data/6379"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync yes
repl-diskless-sync-delay 5
repl-diskless-sync-max-replicas 0
repl-diskless-load disabled
repl-disable-tcp-nodelay no
replica-priority 100
acllog-max-len 128
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
lazyfree-lazy-user-del no
lazyfree-lazy-user-flush no
oom-score-adj no
oom-score-adj-values 0 200 800
disable-thp yes
appendonly no
appendfilename "appendonly.aof"
appenddirname "appendonlydir"
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
aof-timestamp-enabled no

slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-listpack-entries 512
hash-max-listpack-value 64
list-max-listpack-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-listpack-entries 128
zset-max-listpack-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4kb
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
jemalloc-bg-thread yes
save 900 1
save 300 10
save 60 10000

## 设置密码
#requirepass sdafhsal
aclfile "/usr/local/redis/etc/acl.conf"

acl.conf

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user default on sanitize-payload #8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92 ~* &* +@all

user haifei on sanitize-payload #8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92 ~haifei* &* +@all

acl密码加密算法

1 2	root@master-100:/usr/local/redis# echo -n "123456" \| shasum -a 256 8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92 -

自定义配置后验证

root@master-100:/usr/local/redis/etc# redis-cli
127.0.0.1:6379> keys *
(error) NOAUTH Authentication required.
127.0.0.1:6379> auth 123456
OK
127.0.0.1:6379> keys *
(empty array)
127.0.0.1:6379> set name haifei
OK
127.0.0.1:6379> keys *
1) "name"
127.0.0.1:6379> get name
"haifei"
127.0.0.1:6379> auth haifei 123456
OK
127.0.0.1:6379> keys *
1) "name"
127.0.0.1:6379> get name
(error) NOPERM No permissions to access a key
127.0.0.1:6379>

创建多实例

## 配置文件
root@master-100:/usr/local/redis/etc# cat 6379.conf | sed 's@6379@6380@g' > 6380.conf
root@master-100:/usr/local/redis/etc# cat 6379.conf | sed 's@6379@6381@g' > 6381.conf
root@master-100:/usr/local/redis/etc# ls
6379.conf  6380.conf  6381.conf  acl.conf

## 数据目录
mkdir /usr/local/redis/data/{6380,6381}

## 启动脚本
root@master-100:/etc/init.d# cat redis_6379 | sed 's@6379@6380@g' > redis_6380
root@master-100:/etc/init.d# cat redis_6379 | sed 's@6379@6381@g' > redis_6381
root@master-100:/etc/init.d# chmod +x  redis_6380 redis_6381
root@master-100:/etc/init.d# ls -l redis_63*
-rwxr-xr-x 1 root root 1758 Dec 30 16:20 redis_6379
-rwxr-xr-x 1 root root 1758 Dec 30 16:21 redis_6380
-rwxr-xr-x 1 root root 1758 Dec 30 16:22 redis_6381

## 启动后查看
root@master-100:/etc/init.d# netstat -lnpt | grep redis
tcp        0      0 0.0.0.0:6380            0.0.0.0:*               LISTEN      6489/redis-server 0 
tcp        0      0 0.0.0.0:6381            0.0.0.0:*               LISTEN      6496/redis-server 0 
tcp        0      0 0.0.0.0:6379            0.0.0.0:*               LISTEN      6478/redis-server 0

redis主从复制

主节点6379追加配置参数

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## 主从复制
min-replicas-to-write 1
min-replicas-max-lag 10

从节点6380和6381追加配置

## 主从复制
min-replicas-to-write 1
min-replicas-max-lag 10

replicaof 192.168.250.100 6379
masterauth "123456"

重启查看

127.0.0.1:6379> info replication
# Replication
role:master
connected_slaves:2
min_slaves_good_slaves:2
slave0:ip=192.168.250.100,port=6380,state=online,offset=98,lag=1
slave1:ip=192.168.250.100,port=6381,state=online,offset=98,lag=1
master_failover_state:no-failover
master_replid:3aa10f9a99e7323fd10fb4dc68e7789d3108f29a
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:98
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:98

故障自转移，添加sentinel节点

sentinel实例配置文件

protected-mode no
port 26379
daemonize yes
pidfile /usr/local/redis/run/sentinel-26379.pid
loglevel notice
logfile /usr/local/redis/log/sentinel-26379.log
# dir /usr/local/redis/data/26379
acllog-max-len 128

sentinel monitor mymaster 192.168.250.100 6379 2
sentinel auth-pass mymaster 123456
sentinel down-after-milliseconds mymaster 5000
sentinel master-reboot-down-after-period mymaster 3000
sentinel parallel-syncs mymaster 1
sentinel failover-timeout mymaster 60000
sentinel resolve-hostnames no
sentinel announce-hostnames no

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root@master-100:/usr/local/redis/etc# cat sentinel-26379.conf | sed 's@26379@26380@g' > sentinel-26380.conf
root@master-100:/usr/local/redis/etc# cat sentinel-26379.conf | sed 's@26379@26381@g' > sentinel-26381.conf

启动脚本

#!/bin/sh
#Configurations injected by install_server below....

EXEC=/usr/local/redis/bin/redis-server
CLIEXEC=/usr/local/redis/bin/redis-cli
PIDFILE=/usr/local/redis/run/sentinel-26379.pid
CONF="/usr/local/redis/etc/sentinel-26379.conf"
REDISPORT="26379"
###############
# SysV Init Information
# chkconfig: - 58 74
# description: redis_6379 is the redis daemon.
### BEGIN INIT INFO
# Provides: redis_6379
# Required-Start: $network $local_fs $remote_fs
# Required-Stop: $network $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Should-Start: $syslog $named
# Should-Stop: $syslog $named
# Short-Description: start and stop redis_6379
# Description: Redis daemon
### END INIT INFO


case "$1" in
    start)
        if [ -f $PIDFILE ]
        then
            echo "$PIDFILE exists, process is already running or crashed"
        else
            echo "Starting Redis server..."
            $EXEC $CONF --sentinel
        fi
        ;;
    stop)
        if [ ! -f $PIDFILE ]
        then
            echo "$PIDFILE does not exist, process is not running"
        else
            PID=$(cat $PIDFILE)
            echo "Stopping ..."
            $CLIEXEC -p $REDISPORT shutdown
            while [ -x /proc/${PID} ]
            do
                echo "Waiting for Sentinel to shutdown ..."
                sleep 1
            done
            echo "Sentinel stopped"
        fi
        ;;
    status)
        PID=$(cat $PIDFILE)
        if [ ! -x /proc/${PID} ]
        then
            echo 'Sentinel is not running'
        else
            echo "Sentinel is running ($PID)"
        fi
        ;;
    restart)
        $0 stop
        $0 start
        ;;
    *)
        echo "Please use start, stop, restart or status as first argument"
        ;;
esac

root@master-100:/etc/init.d# vim sentinel_26379
root@master-100:/etc/init.d# cat sentinel_26379 | sed 's@26379@26380@g' > sentinel_26380
root@master-100:/etc/init.d# cat sentinel_26379 | sed 's@26379@26381@g' > sentinel_26381
root@master-100:/etc/init.d# chmod +x sentinel_263*
root@master-100:/etc/init.d# ls -l sentinel_263*
-rwxr-xr-x 1 root root 1775 Dec 30 17:00 sentinel_26379
-rwxr-xr-x 1 root root 1775 Dec 30 17:01 sentinel_26380
-rwxr-xr-x 1 root root 1775 Dec 30 17:01 sentinel_26381

启动查看

root@master-100:/etc/init.d# ./sentinel_26379 start
root@master-100:/etc/init.d# netstat -lnpt |grep 263*
tcp        0      0 0.0.0.0:26380           0.0.0.0:*               LISTEN      6676/redis-server * 
tcp        0      0 0.0.0.0:26381           0.0.0.0:*               LISTEN      6684/redis-server * 
tcp        0      0 0.0.0.0:26379           0.0.0.0:*               LISTEN      6669/redis-server 

## sentinel信息
root@master-100:/usr/local/redis/etc# redis-cli -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=mymaster,status=ok,address=192.168.250.100:6379,slaves=2,sentinels=3

## 查看master状态
root@master-100:/usr/local/redis# redis-cli -p 26379 sentinel master mymaster
 1) "name"
 2) "mymaster"
 3) "ip"
 4) "192.168.250.100"
 5) "port"
 6) "6379"

root@master-100:/usr/local/redis/etc# redis-cli -p 26379 sentinel get-master-addr-by-name mymaster
1) "192.168.250.100"
2) "6379"

root@master-100:/usr/local/redis# redis-cli -p 26379 sentinel sentinels mymaster
1)  1) "name"
    2) "963081b09fa1d490a45353616585263402a7a0bc"
    3) "ip"
    4) "192.168.250.100"
    5) "port"
    6) "26381"

root@master-100:/usr/local/redis# redis-cli -p 26379 sentinel replicas mymaster
1)  1) "name"
    2) "192.168.250.100:6381"
    3) "ip"
    4) "192.168.250.100"
    5) "port"
    6) "6381"

转移测试

## 关闭6379主节点，发现6381自动变为主节点
root@master-100:/usr/local/redis# /etc/init.d/redis_6379 stop
Stopping ...
Redis stopped
root@master-100:/usr/local/redis# redis-cli -p 6381
127.0.0.1:6381> auth 123456
OK
127.0.0.1:6381> info replication
# Replication
role:master
connected_slaves:1
min_slaves_good_slaves:1
slave0:ip=192.168.250.100,port=6380,state=online,offset=106457,lag=1
master_failover_state:no-failover
master_replid:4697abb5c3e54854d8ad93aa67740590eb9ad9f3
master_replid2:3aa10f9a99e7323fd10fb4dc68e7789d3108f29a
master_repl_offset:106747
second_repl_offset:103956
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:15
repl_backlog_histlen:106733