Centos8安装redis7

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1.下载：

官网下载：Download | Redis

把安装包上传至服务器：

2.安装：

1. 解压redis：

   [root@node202 ~]# cd /usr/local/soft/
   [root@node202 soft]# tar -zxvf redis-7.0.11.tar.gz 
   

2. 安装：

   进入redis-7.0.11文件夹：

   [root@node202 soft]# cd redis-7.0.11/
   #安装必要类库
   [root@node202 redis-7.0.11]# yum -y install gcc automake autoconf libtool make
   [root@node202 redis-7.0.11]# make & make install
   

3. 启动：

   [root@node202 redis-7.0.11]# cd src
   [root@node202 src]# ./redis-server /usr/local/soft/redis-7.0.11/redis.conf 
   

   打印启动日志：
   

   8789:C 11 May 2023 01:53:49.076 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
   8789:C 11 May 2023 01:53:49.076 # Redis version=7.0.11, bits=64, commit=00000000, modified=0, 	pid=8789, just started
   8789:C 11 May 2023 01:53:49.076 # Configuration loaded
   8789:M 11 May 2023 01:53:49.077 * Increased maximum number of open files to 10032 (it was 	originally set to 1024).
   8789:M 11 May 2023 01:53:49.077 * monotonic clock: POSIX clock_gettime_._                                                  _.-``__ ''-._                                             _.-``    `.  `_.  ''-._           Redis 7.0.11 (00000000/0) 64 bit.-`` .-```.  ```\/    _.,_ ''-._                                  
   (    '      ,       .-`  | `,    )     Running in standalone mode|`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379|    `-._   `._    /     _.-'    |     PID: 8789`-._    `-._  `-./  _.-'    _.-'                                   |`-._`-._    `-.__.-'    _.-'_.-'|                                  |    `-._`-._        _.-'_.-'    |           https://redis.io       `-._    `-._`-.__.-'_.-'    _.-'                                   |`-._`-._    `-.__.-'    _.-'_.-'|                                  |    `-._`-._        _.-'_.-'    |                                  `-._    `-._`-.__.-'_.-'    _.-'                                   `-._    `-.__.-'    _.-'                                       `-._        _.-'                                           `-.__.-'                                               8789:M 11 May 2023 01:53:49.078 # WARNING: The TCP backlog setting of 511 cannot be 	enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
   8789:M 11 May 2023 01:53:49.078 # Server initialized
   8789:M 11 May 2023 01:53:49.078 # WARNING Memory overcommit must be enabled! Without it, a 	background save or replication may fail under low memory condition. Being disabled, it can can also 	cause failures without low memory condition, see https://github.com/jemalloc/jemalloc/issues/1328. To 	fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 	'sysctl vm.overcommit_memory=1' for this to take effect.
   8789:M 11 May 2023 01:53:49.078 * Ready to accept connections
   

4. 使用：

   [root@node202 src]# ./redis-cli 
   127.0.0.1:6379> set foo bar
   OK
   127.0.0.1:6379> get foo
   "bar"
   127.0.0.1:6379> 
   

3.配置

1. 创建一个用于存储 Redis 配置文件目录（/etc/redis）和数据目录（/var/redis）：

   mkdir -p /etc/redis
   mkdir -p /var/redis
   

2. 复制配置文件：

   cp /usr/local/soft/redis-7.0.11/redis.conf /etc/redis/
   

3. 复制编辑启动脚本：

   cp /usr/local/soft/redis-7.0.11/utils/redis_init_script /etc/init.d/redis
   

   vim /etc/init.d/redis
   #!/bin/sh
   # 
   # Simple Redis init.d script conceived to work on Linux systems
   # as it does use of the /proc filesystem.### BEGIN INIT INFO
   # Provides:     redis_6379
   # Default-Start:        2 3 4 5
   # Default-Stop:         0 1 6
   # Short-Description:    Redis data structure server
   # Description:          Redis data structure server. See https://redis.io
   ### END INIT INFOREDISPORT=6379
   EXEC=/usr/local/bin/redis-server
   CLIEXEC=/usr/local/bin/redis-cliPIDFILE=/var/run/redis_${REDISPORT}.pid
   CONF="/etc/redis/redis.conf"case "$1" in
   start)if [ -f $PIDFILE ]thenecho "$PIDFILE exists, process is already running or crashed"elseecho "Starting Redis server..."$EXEC $CONFfi;;
   stop)if [ ! -f $PIDFILE ]thenecho "$PIDFILE does not exist, process is not running"elsePID=$(cat $PIDFILE)echo "Stopping ..."$CLIEXEC -p $REDISPORT shutdownwhile [ -x /proc/${PID} ]doecho "Waiting for Redis to shutdown ..."sleep 1doneecho "Redis stopped"fi;;
   restart)"$0" stopsleep 3"$0" start;;
   *)echo "Please use start or stop or restart as first argument";;
   esac
   

4. 设置开机自启动：

   chmod +x /etc/init.d/redis  #给脚本设置权限chkconfig --add redis  #添加redis服务chkconfig redis on  #设置redis服务开机启动
   

完结。

解决服务器Redis无法连接问题

找到你的redis配置文件，进行以下步骤修改。（本人的在/etc/redis.conf，如果找不到，直接创建一个，然后度娘一个默认的redis配置文件粘贴上去即可，启动时使用命令redis-cli +文件路径，下文会讲）

修改bind，默认为bind 127.0.0.1，将其注释(前面加个#)，如果没有找到bind 127.0.0.1或已经注释，跳过此步。

# By default Redis listens for connections from all the network interfaces
# available on the server. It is possible to listen to just one or multiple
# interfaces using the "bind" configuration directive, followed by one or
# more IP addresses.
#
# Examples:
# bind 127.0.0.1

关闭保护模式，默认为protected-mode yes,将yes修改为no，如果没有找到protected-mode yes，可以随意另起一行添加protected-mode no；或已经修改为protected-mode no，跳过此步。

# When protected mode is on and if:
#
# 1) The server is not binding explicitly to a set of addresses using the
#    "bind" directive.
# 2) No password is configured.
#
# The server only accepts connections from clients connecting from the
# IPv4 and IPv6 loopback addresses 127.0.0.1 and ::1, and from Unix domain
# sockets.
#
# By default protected mode is enabled. You should disable it only if
# you are sure you want clients from other hosts to connect to Redis
# even if no authentication is configured, nor a specific set of interfaces
# are explicitly listed using the "bind" directive.
protected-mode no

如果有需求，设置密码（没有需求则跳过），添加一行requirepass 123456，作用是设置连接密码为123456，如有需求可以修改密码

################################## SECURITY #################################### Require clients to issue AUTH <PASSWORD> before processing any other
# commands.  This might be useful in environments in which you do not trust
# others with access to the host running redis-server.
#
# This should stay commented out for backward compatibility and because most
# people do not need auth (e.g. they run their own servers).
#
# Warning: since Redis is pretty fast an outside user can try up to
# 150k passwords per second against a good box. This means that you should
# use a very strong password otherwise it will be very easy to break.
#
# requirepass foobared
requirepass 123456

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