转载请注明出处哈:http://carlosfu.iteye.com/blog/2240426
安装视频:
8.2.2 redis-cluster安装1
8.2.3 redis-cluster安装2
8.2.4 redis-cluster安装纠正
二、准备redis(下载、编译、安装、配置目录、数据目录)
1. 下载、编译、安装
cd /opt/soft wget http://download.redis.io/releases/redis-3.0.3.tar.gz tar xzf redis-3.0.3.tar.gz cd redis-3.0.3 make make install
2. 配置目录、数据目录
cd /opt/soft/redis-3.0.3 mkdir -p data mkdir -p conf
3.建立软链接:
ln -s /opt/soft/redis-3.0.3 /opt/soft/redis
二、配置、启动Redis节点(本例子以3主、3从组成Redis-Cluster)
1. 配置redis节点,在conf目录下添加6个(8000-8005)redis-${port}.conf作为6个节点的配置文件
其中8000-8005是六个端口号
port 8000 cluster-enabled yes cluster-config-file nodes-8000.conf cluster-node-timeout 15000 dir "/opt/soft/redis/data/" appendonly yes appendfilename "appendonly-8000.aof" logfile "8000.log" daemonize yes pidfile /var/run/redis-8000.pid dbfilename "dump-8000.rdb"
生成另外5个文件
sed 's/8000/8001/g' redis-8000.conf > redis-8001.conf sed 's/8000/8002/g' redis-8000.conf > redis-8002.conf sed 's/8000/8003/g' redis-8000.conf > redis-8003.conf sed 's/8000/8004/g' redis-8000.conf > redis-8004.conf sed 's/8000/8005/g' redis-8000.conf > redis-8005.conf
2. 启动6个节点。
redis-server /opt/soft/redis/conf/redis-8000.conf redis-server /opt/soft/redis/conf/redis-8001.conf redis-server /opt/soft/redis/conf/redis-8002.conf redis-server /opt/soft/redis/conf/redis-8003.conf redis-server /opt/soft/redis/conf/redis-8004.conf redis-server /opt/soft/redis/conf/redis-8005.conf
3. 查看节点是否都已经启动:
[@zw_53_162 conf]# ps -ef | grep redis root 26007 1 0 21:56 ? 00:00:00 redis-server *:8000 [cluster] root 26011 1 0 21:56 ? 00:00:00 redis-server *:8001 [cluster] root 26019 1 0 21:56 ? 00:00:00 redis-server *:8002 [cluster] root 26023 1 0 21:56 ? 00:00:00 redis-server *:8003 [cluster] root 26033 1 0 21:56 ? 00:00:00 redis-server *:8004 [cluster] root 26047 1 0 21:56 ? 00:00:00 redis-server *:8005 [cluster]
4. 查看单个节点:(此时六个节点是分散的,没有形成集群,所有cluster_state=fail)
[@zw_53_162 conf]# redis-cli -c -p 8000 127.0.0.1:8000> cluster info cluster_state:fail cluster_slots_assigned:0 cluster_slots_ok:0 cluster_slots_pfail:0 cluster_slots_fail:0 cluster_known_nodes:1 cluster_size:0 cluster_current_epoch:0 cluster_my_epoch:0 cluster_stats_messages_sent:0 cluster_stats_messages_received:0
四、利用redis-cluster meet命令,实现节点握手,组成集群:
1. 利用redis-cli连接到8000,然后meet 8001-8005
redis-cli -c -p 8000 cluster meet 10.10.53.159 8001 redis-cli -c -p 8000 cluster meet 10.10.53.159 8002 redis-cli -c -p 8000 cluster meet 10.10.53.159 8003 redis-cli -c -p 8000 cluster meet 10.10.53.159 8004 redis-cli -c -p 8000 cluster meet 10.10.53.159 8005
五、分配槽(slots)给节点:
1. 分派slots
redis-cli -c -p 8000 cluster addslots 0 1 2 ...
(redis-cli 未实现0-5462这样的参数,必须一个个输入。)
所以利用shell生成最终的命令addslots.sh:
start=$1 end=$2 port=$3 for slot in `seq ${start} ${end}` do echo "slot:${slot}" redis-cli -c -p ${port} cluster addslots ${slot} done
执行:
sh addslots.sh 5461 10922 8001
sh addslots.sh 10923 16383 8002
2. 确认cluster当前状态 .
127.0.0.1:8000> cluster info cluster_state:ok cluster_slots_assigned:16384 cluster_slots_ok:16384 cluster_slots_pfail:0 cluster_slots_fail:0 cluster_known_nodes:6 cluster_size:3 cluster_current_epoch:5 cluster_my_epoch:1 cluster_stats_messages_sent:1650 cluster_stats_messages_received:1650
3. 确认分配槽状态:
127.0.0.1:8000> cluster nodes 6690722c4536210a231af4bdceb604e83d53403e 10.10.53.159:8001 master - 0 1440897737597 3 connected 5461-10922 4d2842d9f846481783eafbd9135df372e2153307 10.10.53.159:8000 myself,master - 0 0 1 connected 0-5460 caefaab1e5d01d76a728c84cb1dc285a6aab15a6 10.10.53.159:8005 master - 0 1440897736092 4 connected ec403c50e59460bcb0b47906e567423b7d9aed50 10.10.53.159:8003 master - 0 1440897738097 0 connected a52b9d211ec06190bcc4ab36eecf643fa13aa215 10.10.53.159:8004 master - 0 1440897736594 5 connected c05ebacbeeb6cbcf52a6ac60384891586226f131 10.10.53.159:8002 master - 0 1440897737096 2 connected 10923-16383 127.0.0.1:8000> cluster slots 1) 1) (integer) 5461 2) (integer) 10922 3) 1) "10.10.53.159" 2) (integer) 8001 2) 1) (integer) 0 2) (integer) 5460 3) 1) "10.10.53.159" 2) (integer) 8000 3) 1) (integer) 10923 2) (integer) 16383 3) 1) "10.10.53.159" 2) (integer) 8002
六、配置主从关系(保证高可用):
8003设置成8000的从
8004设置成8001的从
8005设置成8002的从
redis-cli -c -p 8003 cluster replicate `redis-cli -c -p 8003 cluster nodes | grep 8000 | awk '{print $1}'` redis-cli -c -p 8004 cluster replicate `redis-cli -c -p 8003 cluster nodes | grep 8001 | awk '{print $1}'` redis-cli -c -p 8005 cluster replicate `redis-cli -c -p 8003 cluster nodes | grep 8002 | awk '{print $1}'`
七、最终确认集群状态、节点状态、分配槽状态:
集群状态: 127.0.0.1:8000> cluster info cluster_state:ok cluster_slots_assigned:16384 cluster_slots_ok:16384 cluster_slots_pfail:0 cluster_slots_fail:0 cluster_known_nodes:6 cluster_size:3 cluster_current_epoch:5 cluster_my_epoch:1 cluster_stats_messages_sent:2963 cluster_stats_messages_received:2963 三主三从 127.0.0.1:8000> cluster nodes 6690722c4536210a231af4bdceb604e83d53403e 10.10.53.159:8001 master - 0 1440897872917 3 connected 5461-10922 4d2842d9f846481783eafbd9135df372e2153307 10.10.53.159:8000 myself,master - 0 0 1 connected 0-5460 caefaab1e5d01d76a728c84cb1dc285a6aab15a6 10.10.53.159:8005 slave c05ebacbeeb6cbcf52a6ac60384891586226f131 0 1440897874922 4 connected ec403c50e59460bcb0b47906e567423b7d9aed50 10.10.53.159:8003 slave 4d2842d9f846481783eafbd9135df372e2153307 0 1440897874922 1 connected a52b9d211ec06190bcc4ab36eecf643fa13aa215 10.10.53.159:8004 slave 6690722c4536210a231af4bdceb604e83d53403e 0 1440897874421 5 connected c05ebacbeeb6cbcf52a6ac60384891586226f131 10.10.53.159:8002 master - 0 1440897873920 2 connected 10923-16383 分配槽状态: 127.0.0.1:8000> cluster slots 1) 1) (integer) 10923 2) (integer) 16383 3) 1) "10.10.53.159" 2) (integer) 8002 4) 1) "10.10.53.159" 2) (integer) 8005 2) 1) (integer) 5461 2) (integer) 10922 3) 1) "10.10.53.159" 2) (integer) 8001 4) 1) "10.10.53.159" 2) (integer) 8004 3) 1) (integer) 0 2) (integer) 5460 3) 1) "10.10.53.159" 2) (integer) 8000 4) 1) "10.10.53.159" 2) (integer) 8003