redis5 集群自启动

素颜马尾好姑娘i 2023-07-20 08:28 73阅读 0赞

环境：CentOS8

本文是单机伪集群

# 一、配置系统服务 #

1、创建文件/etc/rc.d/init.d/redisc

#!/bin/sh
    # chkconfig: 2345 80 90
    # description: Redis cluster start and stop
    # Simple Redis init.d script conceived to work on Linux systems
    # as it does use of the /proc filesystem.
    
    EXEC=/opt/redis5-cluster/bin/redis-server
    CLIEXEC=/opt/redis5-cluster/bin/redis-cli
    
    PORT1=7001
    PORT2=7002
    PORT3=7003
    PORT4=7004
    PORT5=7005
    PORT6=7006
    
    CONF1=/opt/redis5-cluster/${PORT1}/redis.conf
    CONF2=/opt/redis5-cluster/${PORT2}/redis.conf
    CONF3=/opt/redis5-cluster/${PORT3}/redis.conf
    CONF4=/opt/redis5-cluster/${PORT4}/redis.conf
    CONF5=/opt/redis5-cluster/${PORT5}/redis.conf
    CONF6=/opt/redis5-cluster/${PORT6}/redis.conf
    
    PASSWORD=redis508
    
    PIDFILE=/opt/redis5-cluster/${PORT1}/redis.pid
    
    case "$1" in
        start)
            if [ -f $PIDFILE ]
            then
                    echo "$PIDFILE exists, process is already running or crashed"
            else
                    echo "Starting ..."
                    $EXEC $CONF1 #Can add &, Without & process have order
                    $EXEC $CONF2
                    $EXEC $CONF3
                    $EXEC $CONF4
                    $EXEC $CONF5
                    $EXEC $CONF6
                    echo "Redis cluster started"
            fi
            ;;
        stop)
            if [ ! -f $PIDFILE ]
            then
                    echo "$PIDFILE does not exist, process is not running"
            else
                    PID=$(cat $PIDFILE)
                    echo "Stopping ..."
                    $CLIEXEC -p $PORT1 -a $PASSWORD shutdown 2>/dev/null #2>/dev/null Ignore err
                    $CLIEXEC -p $PORT2 -a $PASSWORD shutdown 2>/dev/null
                    $CLIEXEC -p $PORT3 -a $PASSWORD shutdown 2>/dev/null
                    $CLIEXEC -p $PORT4 -a $PASSWORD shutdown 2>/dev/null
                    $CLIEXEC -p $PORT5 -a $PASSWORD shutdown 2>/dev/null
                    $CLIEXEC -p $PORT6 -a $PASSWORD shutdown 2>/dev/null
                    while [ -x /proc/${PID} ] #PID is process ID,not port
                    do
                        echo "Waiting for redis cluster to shutdown ..."
                        sleep 1
                    done
                    echo "Redis cluster stopped"
            fi
            ;;
        *)
            echo "Please use start or stop as first argument"
            ;;
    esac

2、加可执行权限

chmod +x /etc/rc.d/init.d/redisc

3、注册为系统服务（删除系统服务）

chkconfig --add redisc

chkconfig --del redisc

4、添加开机自启动（关闭开机自启动）

chkconfig redisc on

chkconfig redisc off

5、启动、关闭redis集群

service redisc start

service redisc stop

6、查看服务列表

chkconfig --list

redisc             0:关    1:关    2:开    3:开    4:开    5:开    6:关

# 二、配置/etc/rc.d/rc.local #

加入

/opt/redis5-cluster/bin/redis-server /opt/redis5-cluster/7001/redis.conf
    /opt/redis5-cluster/bin/redis-server /opt/redis5-cluster/7002/redis.conf
    /opt/redis5-cluster/bin/redis-server /opt/redis5-cluster/7003/redis.conf
    /opt/redis5-cluster/bin/redis-server /opt/redis5-cluster/7004/redis.conf
    /opt/redis5-cluster/bin/redis-server /opt/redis5-cluster/7005/redis.conf
    /opt/redis5-cluster/bin/redis-server /opt/redis5-cluster/7006/redis.conf

加可执行权限：chmod +x /etc/rc.d/rc.local

# **三、另外一种配置自启动** #

Linux重启 Redis自动启动  
[https://blog.csdn.net/yexiaomodemo/article/details/94626231][https_blog.csdn.net_yexiaomodemo_article_details_94626231]  
redis 设置自启动  
[http://www.mamicode.com/info-detail-2794774.html][http_www.mamicode.com_info-detail-2794774.html]

# 四、其他问题 #

如果redis.conf配置了bind IP，可能自启动失败，

(error) CLUSTERDOWN The cluster is down

Could not create server TCP listening socket 192.168.0.201:7001: bind: Cannot assign requested address

bind的意思不是绑定外部服务器的IP，而是绑定本机可以接受访问的IP

把bind IP注释了就好了，或者bind 0.0.0.0，没必要绑定IP

**参考：**

配置Redis集群为开机自启动  
[https://www.cnblogs.com/alexzhang92/p/11008102.html][https_www.cnblogs.com_alexzhang92_p_11008102.html]

[https_blog.csdn.net_yexiaomodemo_article_details_94626231]: https://blog.csdn.net/yexiaomodemo/article/details/94626231
[http_www.mamicode.com_info-detail-2794774.html]: http://www.mamicode.com/info-detail-2794774.html
[https_www.cnblogs.com_alexzhang92_p_11008102.html]: https://www.cnblogs.com/alexzhang92/p/11008102.html