redis 服务器的安装、主从复制的搭建

redis 服务器安装

进入下载目录

cd /usr/local/ 

下载软件包

wget  http://download.redis.io/releases/redis-3.2.4.tar.gz

解压缩

tar zxvf redis-3.2.4.tar.gz && cd redis-3.2.4 

编译

make && make test 

cd /usr/local/redis-3.2.4 && make install 

创建redis配置文件存放目录

mkdir -p /usr/local/redis-6379/conf 

 cp /usr/local/redis-3.2.4/redis.conf  /usr/local/redis-6379/conf 

创建可执行程序的目录

mkdir -p /usr/local/redis-6379/sbin

cd /usr/local/redis-3.2.4/src/

cp redis-cli redis-sentinel mkreleasehdr.sh redis-benchmark redis-check-aof redis-check-rdb  redis-server redis-trib.rb /usr/local/redis-6379/sbin 

编写启动脚本

#!/bin/bash
source /etc/profile
REDISPORT=6379
EXEC=/usr/local/redis-6379/sbin/redis-server
REDIS_CLI=/usr/local/redis-6379/sbin/redis-cli
PIDFILE=/var/run/redis_6379.pid
CONF=" /usr/local/redis-6379/conf/redis.conf "
AUTH="1234"
BIND_IP='127.0.0.1'

case "$1" in
       start)
            if [ -f $PIDFILE ]
            then
                 echo "$PIDFILE is exists"
                 exit 1
             else
                 echo "start redis server"
                 $EXEC $CONF &
             fi
             if [ "$?"="0" ]
              then 
                  echo "Redis is running...."
             fi
              ;;
       stop)
           if [ ! -f $PIDFILE ]
           then 
                echo "$PIDFILE exists,process is not running "
                exit 1
            else 
                PID=$(cat $PIDFILE )
                echo "stoping Redis ...."
             $REDIS_CLI -h $BIND_IP -a $AUTH -p $REDISPORT SHUTDOWN
             sleep 3
            if [ ! -f $PIDFILE   ]
             then 
             echo “stop Redis success ”      
            fi
          
           *)
            echo "Usage:redis_control.sh{start|stop}"
            exit 1
esac

登录

./redis-cli -p 6379 

模拟插入数据

127.0.0.1:6379> set test hello

OK

查看

127.0.0.1:6379> get test

"hello"

redis 主从搭建

1、使用类似的方法搭建redis 从服务器、设置从服务器的端口号为 6380 

2、以6379端口号的redis 服务器为主服务器，6380 服务器为从服务器

3、修改redis 从服务器的配置 

在从服务器上添加如下配置

# slaveof

slaveof 127.0.0.1 6379

masterauth 1234  ##备注如果master 服务器有密码的话需要加上

测试主从

查看master 上的信息

# Replication
role:master
connected_slaves:1
slave0:ip=127.0.0.1,port=6380,state=online,offset=4321,lag=1
master_repl_offset:4321
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:2
repl_backlog_histlen:4320

查看 slave 上的信息

# Replication
role:slave
master_host:127.0.0.1
master_port:6379
master_link_status:up
master_last_io_seconds_ago:7
master_sync_in_progress:0
slave_repl_offset:4601
slave_priority:100
slave_read_only:1
connected_slaves:0
master_repl_offset:0
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0

测试数据是否正常

master 

127.0.0.1:6379> set test1 hi

OK

127.0.0.1:6379> get test1

"hi"

slave

127.0.0.1:6380> get test1

"hi"

测试正常，主从搭建完成