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本文轉自:http://www.cnblogs.com/lgeng/p/6623336.html
一，單機多實例：
Redis官網: https://redis.io/
1,安裝：
yum -y install gcc gcc-c++ #安裝編譯工具 [root@localhost data]# wget http://download.redis.io/releases/redis-3.2.8.tar.gz [root@localhost data]# tar xzf redis-3.2.8.tar.gz [root@localhost data]# cd redis-3.2.8 [root@localhost data]# make [root@localhost data]# mv redis-3.2.8 /usr/local/redis 注意：可直接 yum install redis -y 安裝
啟動：（默認啟動6379端口）
[root@localhost redis]# /usr/local/redis/src/redis-server
2，驗證：使用 redis-cli命令驗證 （注意路徑）
[root@localhost src]# /usr/local/redis/src/redis-cli -p 6379 127.0.0.1:6379> keys * (empty list or set) 127.0.0.1:6379> set k1 v1 OK 127.0.0.1:6379> keys * 1) "k1" 127.0.0.1:6379> get k1 "v1" 127.0.0.1:6379> 127.0.0.1:6379>
3,配置環境變量
輸入redis-server和redis-cli命令，每次輸入完整的路徑
將路徑添加到PATH變量中
echo 'PATH=${PATH}:/usr/local/redis/src/' >> /etc/profile source /etc/profile #<== 重新加載配置文件
二，單機多實例
創建不同實例的數據存放目錄 分別創建6380，6381，6382 三個實例
每個實例目錄中分別創建 conf，db，log目錄，並拷貝配置文件到conf中
[root@localhost /]# mkdir -p /data/redis/{6380,6381,6382}/{conf,db,log} [root@localhost /]# cp /usr/local/redis/redis.conf /data/redis/6380/conf/ [root@localhost /]# cp /usr/local/redis/redis.conf /data/redis/6381/conf/ [root@localhost /]# cp /usr/local/redis/redis.conf /data/redis/6382/conf/ [root@localhost /]# [root@localhost /]# cd /data/redis [root@localhost redis]# ls 6380 6381 6382 [root@localhost redis]# tree . ├── 6380 │ ├── conf │ │ └── redis.conf │ ├── db │ └── log ├── 6381 │ ├── conf │ │ └── redis.conf │ ├── db │ └── log └── 6382 ├── conf │ └── redis.conf ├── db └── log 12 directories, 3 files [root@localhost redis]# [root@localhost redis]#
修改配置文件：
將redis.conf修改為對應的實例參數,修改部分如下
[root@localhost redis]# grep "6380\|daemonize" 6380/conf/redis.conf daemonize yes <== daemon進程運行 pidfile /data/redis/6380/redis.pid <== 進程id存放文件 port 6380 <== 端口 logfile /data/redis/6380/log/redis.log <== 日志目錄 dir /data/redis/6380/db/ <== db目錄 [root@localhost redis]# [root@localhost redis]# grep "6381" 6381/conf/redis.conf daemonize yes pidfile /data/redis/6381/redis.pid port 6381 logfile /data/redis/6381/log/redis.log dir /data/redis/6381/db/ [root@localhost redis]# [root@localhost redis]# grep "6382" 6382/conf/redis.conf daemonize yes pidfile /data/redis/6382/redis.pid port 6382 logfile /data/redis/6382/log/redis.log dir /data/redis/6382/db/ [root@localhost redis]# [root@localhost redis]#
啟動實例：
[root@localhost redis]# redis-server /data/redis/6380/conf/redis.conf [root@localhost redis]# redis-server /data/redis/6381/conf/redis.conf [root@localhost redis]# redis-server /data/redis/6382/conf/redis.conf [root@localhost redis]# [root@localhost redis]# netstat -ntlp | grep -E ":6380|:6381|:6382" tcp 0 0 127.0.0.1:6380 0.0.0.0:* LISTEN 14301/redis-server tcp 0 0 127.0.0.1:6381 0.0.0.0:* LISTEN 14305/redis-server tcp 0 0 127.0.0.1:6382 0.0.0.0:* LISTEN 14309/redis-server [root@localhost redis]# [root@localhost redis]#
驗證（略） redis-cli -p 6380 ; redi-cli -p 6381 ; redis-cli -p 6382
三，配置主從同步
修改從庫配置，6380實例為主庫， 從庫為 6381，6382
[root@localhost ~]# vim /data/redis/6381/conf/redis.conf [root@localhost ~]# vim /data/redis/6382/conf/redis.conf ################################# REPLICATION ################################# # Master-Slave replication. Use slaveof to make a Redis instance a copy of # another Redis server. A few things to understand ASAP about Redis replication. # # 1) Redis replication is asynchronous, but you can configure a master to # stop accepting writes if it appears to be not connected with at least # a given number of slaves. # 2) Redis slaves are able to perform a partial resynchronization with the # master if the replication link is lost for a relatively small amount of # time. You may want to configure the replication backlog size (see the next # sections of this file) with a sensible value depending on your needs. # 3) Replication is automatic and does not need user intervention. After a # network partition slaves automatically try to reconnect to masters # and resynchronize with them. # # slaveof <masterip> <masterport> slaveof 127.0.0.1 6380 # If the master is password protected (using the "requirepass" configuration # directive below) it is possible to tell the slave to authenticate before # starting the replication synchronization process, otherwise the master will # refuse the slave request. # # masterauth <master-password> # When a slave loses its connection with the master, or when the replication # is still in progress, the slave can act in two different ways: # # 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will # still reply to client requests, possibly with out of date data, or the # data set may just be empty if this is the first synchronization. # # 2) if slave-serve-stale-data is set to 'no' the slave will reply with # an error "SYNC with master in progress" to all the kind of commands
驗證：
先在主庫上info一下
[root@localhost 6380]# redis-cli -p 6380 "info" . .此處略去n行 . # Replication role:master <== 角色：master connected_slaves:2 <== slave鏈接數 2 slave0:ip=127.0.0.1,port=6381,state=online,offset=141,lag=1 <== slave 的信息 slave1:ip=127.0.0.1,port=6382,state=online,offset=141,lag=1 master_repl_offset:141 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:2 repl_backlog_histlen:140
看看從庫
[root@localhost 6381]# redis-cli -p 6381 "info" ... .此處略去n行 .... # Replication role:slave <==角色 slave master_host:127.0.0.1 <==master主機 master_port:6380 <== master端口 master_link_status:up <== 鏈接狀態 up master_last_io_seconds_ago:5 master_sync_in_progress:0 slave_repl_offset:673 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
[root@localhost 6382]# redis-cli -p 6382 "info" ... .此處略去n行 .... # Replication role:slave master_host:127.0.0.1 master_port:6380 master_link_status:up master_last_io_seconds_ago:4 master_sync_in_progress:0 slave_repl_offset:911 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
在主庫上寫入數據：[root@localhost 6380]# redis-cli -p 6380 127.0.0.1:6380> set k1 v1 OK 127.0.0.1:6380> keys * 1) "k1" 127.0.0.1:6380> get k1 "v1" 127.0.0.1:6380>
從庫上查看是否已同步[root@localhost 6381]# redis-cli -p 6381 127.0.0.1:6381> keys * 1) "k1" 127.0.0.1:6381> get k1 "v1" 127.0.0.1:6381> 127.0.0.1:6381> exit [root@localhost 6381]# redis-cli -p 6382 127.0.0.1:6382> keys * 1) "k1" 127.0.0.1:6382> get k1 "v1" 127.0.0.1:6382>
主庫刪除數據：
[root@localhost 6380]# redis-cli -p 6380 127.0.0.1:6380> keys * 1) "k1" 127.0.0.1:6380> del k1 (integer) 1 127.0.0.1:6380> keys * (empty list or set) 127.0.0.1:6380>
從庫查看
[root@localhost 6381]# redis-cli -p 6381 127.0.0.1:6381> keys * (empty list or set) 127.0.0.1:6381> exit [root@localhost 6381]# redis-cli -p 6382 127.0.0.1:6382> keys * (empty list or set) 127.0.0.1:6382> 127.0.0.1:6382> exit [root@localhost 6381]#
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