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Redis ?????????

1. Redis ????

Redis ??????

Redis ?????????????? Redis ????????????????????????????????????

• ??????? Redis ????????? PING-PONG ????????????????????????????
• ???????????????????????cluster-node-timeout?????????????????????????????????
• ?????????????? Redis ????????? proxy ???????????????
• ??????Redis ???? 16384 ?????????????????????????????????

??????

? Redis ??????????????

2. Redis ??????

????

?????????master????????????????????????????????????????????cluster_state: fail???????

• ?????????????????????slave??
• ???????????????????????

??????

???????????????

127.0.0.1:7003> cluster info

?????

cluster_state: okcluster_slots_assigned: 16384cluster_slots_ok: 16384cluster_slots_pfail: 0cluster_slots_fail: 0cluster_known_nodes: 6cluster_size: 3cluster_current_epoch: 6cluster_my_epoch: 3cluster_stats_messages_sent: 926cluster_stats_messages_received: 926

3. ?? Redis ??

????

• ??????? Ruby ???
• ?????

  yum install rubyyum install rubygems

• ?????? Redis-3.0.0.gem???????????

  gem install /usr/local/redis-3.0.0.gem

• ??????????????? /usr/local/redis/redis-cluster ???

??????

[root@A001 redis-cluster]# cp 7001/ 7002 -r[root@A001 redis-cluster]# cp 7001/ 7003 -r[root@A001 redis-cluster]# cp 7001/ 7004 -r[root@A001 redis-cluster]# cp 7001/ 7005 -r[root@A001 redis-cluster]# cp 7001/ 7006 -r

[root@A001 redis-cluster]# ./startall.sh

[root@A001 redis-cluster]# ./redis-trib.rb create --replicas 1 192.168.242.137:7001 192.168.242.137:7002 192.168.242.137:7003 192.168.242.137:7004 192.168.242.137:7005 192.168.242.137:7006

4. ????

????

• ??????

  ./redis-trib.rb add-node 127.0.0.1:7007 127.0.0.1:7001

• ???????

  127.0.0.1:7003> cluster nodes

• ??????

  ./redis-trib.rb add-node --slave --master-id 
       
         192.168.101.3:7008 192.168.101.3:7001
       

###????

• ????????

  127.0.0.1:7003> cluster slots

• ????

  ./redis-trib.rb reshard 192.168.101.3:7001 500 15b809eadae88955e36bcdbb8144f61bbbaf38fb all yes

5. ?????

?????

• ?????

  ./redis-cli -h 127.0.0.1 -p 7001 -c

• ???????

  ./redis-cli -h 127.0.0.1 -p 7001 -c

????

• ???????

  127.0.0.1:7003> cluster info

• ???????

  127.0.0.1:7003> cluster nodes

6. ?????

????

• ?????

  ./redis-trib.rb del-node 127.0.0.1:7005 4b45eb75c8b428fbd77ab979b85080146a9bc017

• ????????????????????????

?????????????? Redis ??????????????????????????

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