标签：redis3.0集群
1.安装zlib
wget:htpp://zlib.net/zlib-1.2.8.tar.gz tar -zxvf zlib-1.2.8.tar.gz cd zlib-1.2.8 ./configure make make install
2.安装redis
wget:http://download.redis.io/redis-stable.tar.gz tar -zxvf redis-stable.tar.gz cd redis-stable make make install
3.安装ruby
gem sources -a http://ruby.taobao.org/ yum install rubygems gem install redis
1. 创建节点目录
为了区分master 和slave ，slave比master 多1000
mkdir /server/cluster/6380 6381 6382 7380 7381 7382
通用配置
mkdir -p /server/server/cluster/redis-common.conf
daemonize yes #守护进程运行（后台运行） tcp-backlog 511 timeout 0 tcp-keepalive 0 loglevel notice databases 16 dir /opt/redis/data slave-serve-stale-data yes #slave只读 slave-read-only yes #not use default repl-disable-tcp-nodelay yes slave-priority 100 #打开aof持久化 appendonly yes #每秒一次aof写 appendfsync everysec #关闭在aof rewrite的时候对新的写操作进行fsync no-appendfsync-on-rewrite yes auto-aof-rewrite-min-size 64mb lua-time-limit 5000 #打开redis集群 cluster-enabled yes #节点互连超时的阀值 cluster-node-timeout 15000 cluster-migration-barrier 1 slowlog-log-slower-than 10000 slowlog-max-len 128 notify-keyspace-events "" hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-entries 512 list-max-ziplist-value 64 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes
特殊配置
记得更改port
vim /server/cluster/6380/redis.conf vim /server/cluster/6381/redis.conf vim /server/cluster/6382/redis.conf vim /serve/cluster/7380/redis.conf vim /server/cluster/7381/redis.conf vim /server/cluster/6382/redis.conf
#包含通用配置 include /server/cluster/redis-common.conf #监听tcp端口 port 6379 #最大可用内存 maxmemory 100m #内存耗尽时采用的淘汰策略: # volatile-lru -> remove the key with an expire set using an LRU algorithm # allkeys-lru -> remove any key accordingly to the LRU algorithm # volatile-random -> remove a random key with an expire set # allkeys-random -> remove a random key, any key # volatile-ttl -> remove the key with the nearest expire time (minor TTL) # noeviction -> don‘t expire at all, just return an error on write operations maxmemory-policy allkeys-lru #aof存储文件 appendfilename "appendonly-6379.aof" #不开启rdb存储,只用于添加slave过程 dbfilename dump-6379.rdb #cluster配置文件(启动自动生成) cluster-config-file nodes-6379.conf #部署在同一机器的redis实例，把auto-aof-rewrite搓开，因为cluster环境下内存占用基本一致. #防止同意机器下瞬间fork所有redis进程做aof rewrite,占用大量内存(ps:cluster必须开启aof) auto-aof-rewrite-percentage 80-100
1.启动redis服务
redis-server /server/cluster/6380/redis.conf redis-server /server/cluster/6381/redis.conf redis-server /server/cluster/6382/redis.conf redis-server /server/cluster/7380/redis.conf redis-server /server/cluster/7381/redis.conf redis-server /server/cluster/7382/redis.conf
2.创建集群
cd /server/server/redis-stable/src ./redis-trib.rb create --replicas 1 host:6380 host:6381 host:6382 host:7380..... #这里注意redis官方翻译过来的集群教程，使用的是127.0.0.1:prot 实际很坑爹， #如果你使用的是java并且使用JedisCluster API来访问 #会报错:too many redis cluster redirection。 #比如我的本机ip为123.133.122.141,那么就应该使用123.133.122.141:prot #而非127.0.0.1 :port
命令的意义如下：
给定 redis-trib.rb 程序的命令是 create ，
这表示我们希望创建一个新的集群。
选项 --replicas 1 表示我们希望为集群中的每个主节点创建一个从节点。
之后跟着的其他参数则是实例的地址列表， 我们希望程序使用这些地址所指示的实例来创建新集群。
以上命令的意思就是让 redis-trib 程序创建一个包含三个主节点和三个从节点的集群。
redis-trib 会打印出一份预想中的配置给你看，
如果你觉得没问题的话，
就可以输入 yes ，redis-trib 就会将这份配置应用到集群当中。
查看集群信息
redis-cli -p 6380 -c 127.0.0.1:6380>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:6 cluster_my_epoch:1 cluster_stats_messages_sent:19161 cluster_stats_messages_received:19161
可以看到当前cluster_state 是ok的
使用./redis-trib.rb check host port 检查状态
./redis-trib.rb check 115.28.138.150:6380 Connecting to node 115.28.138.150:6380: OK Connecting to node 115.28.138.150:7380: OK Connecting to node 115.28.138.150:7382: OK Connecting to node 115.28.138.150:7381: OK Connecting to node 115.28.138.150:6382: OK Connecting to node 115.28.138.150:6381: OK >>> Performing Cluster Check (using node 115.28.138.150:6380) M: 3046c8e6efbcea5c77e90483d97b928c5e4fbe05 115.28.138.150:6380 slots:0-5460 (5461 slots) master 1 additional replica(s) S: 2f045aaecb9addea7ae8ef636e3a5415686889e4 115.28.138.150:7380 slots: (0 slots) slave replicates 3046c8e6efbcea5c77e90483d97b928c5e4fbe05 S: c09ffe456b44abedd7ba811aaad470b3f7a36ea5 115.28.138.150:7382 slots: (0 slots) slave replicates ed7200bf1cdacc18661d70c39270995582559037 S: 1866624d3330f6491d5c57e269811694bb061759 115.28.138.150:7381 slots: (0 slots) slave replicates fb5c50e062d0e770aa534315fec1aa11488c228a M: ed7200bf1cdacc18661d70c39270995582559037 115.28.138.150:6382 slots:10923-16383 (5461 slots) master 1 additional replica(s) M: fb5c50e062d0e770aa534315fec1aa11488c228a 115.28.138.150:6381 slots:5461-10922 (5462 slots) master 1 additional replica(s) [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered.
本文出自 “瞄腻的专栏” 博客，请务必保留此出处http://miaoni.blog.51cto.com/10720758/1696050
标签：redis3.0集群
原文地址：http://miaoni.blog.51cto.com/10720758/1696050
