How many slots do you want to move (from 1 to 16384)? 100 What is the receiving node ID? 363ecec54c92c2548dcab016146bdb4c104e5e84 Please enter all the source node IDs. Type 'all' to use all the nodes as source nodes for the hash slots. Type 'done' once you entered all the source nodes IDs. Source node #1:d015a22abc57c021f568973f4f1c03c7a5c7b772 Source node #2:done
执行完以后就可以进行迁移了，迁移完以后我们再打印出来节点信息看一下：
[root@localhost redis7003]# redis-cli -p 7001 cluster nodes
78f77749f9f9a5f0d7c99427e0311912a3fa04e710.103.16.34:7003 slave 89147e5837e378b69233dd2b8290267975719bc4 0 1493881167965 5 connected
d015a22abc57c021f568973f4f1c03c7a5c7b77210.103.16.35:7001 master - 0 1493881166460 4 connected 101-5460
89147e5837e378b69233dd2b8290267975719bc410.103.16.35:7002 master - 0 1493881166962 5 connected 10923-16383
ce9d635236567ccde4c864f78863fa0a4b26f25a10.103.16.35:7003 slave 363ecec54c92c2548dcab016146bdb4c104e5e84 0 1493881167465 7 connected
93a0e8d405959480fcbd310a5d15a92346c69d4310.103.16.34:7002 slave d015a22abc57c021f568973f4f1c03c7a5c7b772 0 1493881167965 4 connected
363ecec54c92c2548dcab016146bdb4c104e5e8410.103.16.34:7001 myself,master - 0 0 7 connected 0-100 5461-10922
我们可以很清楚的看到已经迁移成功了。
6：我们来测试一下集群的故障转移功能
首先我们要看一下集群的主节点信息：
[root@localhost redis7003]# redis-cli -p 7001 cluster nodes | grep master d015a22abc57c021f568973f4f1c03c7a5c7b772 10.103.16.35:7001 master - 0 1493883826713 4 connected 101-5460 89147e5837e378b69233dd2b8290267975719bc4 10.103.16.35:7002 master - 0 1493883827213 5 connected 10923-16383 363ecec54c92c2548dcab016146bdb4c104e5e84 10.103.16.34:7001 myself,master - 0 0 7 connected 0-100 5461-10922
我们现在要使10.103.16.35:7001这个主节点断掉，然后重启看一下基本信息
[root@mxqmongodb2 sa]# /home/maxiangqian/redis-3.2.8/src/redis-cli -p 7001 127.0.0.1:7001> SHUTDOWN not connected> exit [root@mxqmongodb2 sa]# redis-server /home/redis7001/redis7001.conf
然后再打印一下集群信息看一下：
[root@localhost redis7003]# redis-cli -p 7001 cluster nodes 78f77749f9f9a5f0d7c99427e0311912a3fa04e7 10.103.16.34:7003 slave 89147e5837e378b69233dd2b8290267975719bc4 0 1493884247801 5 connected d015a22abc57c021f568973f4f1c03c7a5c7b772 10.103.16.35:7001 slave 93a0e8d405959480fcbd310a5d15a92346c69d43 0 1493884247300 8 connected 89147e5837e378b69233dd2b8290267975719bc4 10.103.16.35:7002 master - 0 1493884246798 5 connected 10923-16383 ce9d635236567ccde4c864f78863fa0a4b26f25a 10.103.16.35:7003 slave 363ecec54c92c2548dcab016146bdb4c104e5e84 0 1493884246298 7 connected 93a0e8d405959480fcbd310a5d15a92346c69d43 10.103.16.34:7002 master - 0 1493884248301 8 connected 101-5460 363ecec54c92c2548dcab016146bdb4c104e5e84 10.103.16.34:7001 myself,master - 0 0 7 connected 0-100 5461-10922
通过信息我们可以很明显的看到了10.103.16.35:7001这个主节点已经变成了从节点，而本身他的从节点也上升为主节点了。