Redis Cluster deployment

Pro-Test Jedis (jedis2.7.2) client jediscluster available
1: Installing Redis cluster and dependencies

1. Installing zlib

wget:htpp://zlib.net/zlib-1.2.8.tar.gz tar-zxvf zlib-1.2.8.tar.gz cd zlib-1.2.8./config Ure make make Install

2. Installing Redis

wget:http://download.redis.io/redis-stable.tar.gz tar-zxvf redis-stable.tar.gz CD redis-stable Make make Install

3. Install Ruby

Gem sources-a http://ruby.taobao.org/yum install rubygems gem install Redis

2: Configure Redis

1. Create a node directory

To differentiate between master and slave, slave is 1000 more than master

mkdir/server/cluster/6380 6381 6382 7380 7381 7382

General configuration

    mkdir -p /server/server/cluster/ Redis-common.conf 

    daemonize yes      #守护进程运行 (running in the background)      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       the new write operation fsync      no-appendfsync-on-rewrite  when the #关闭在aof  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

Special configuration

Remember to change the 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

1. #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, only for adding slave procedures   dbfilename dump-6379.rdb  # Cluster configuration file (start auto-generate)   cluster-config-file nodes-6379.conf   #部署在同一机器的redis实例, Auto-aof-rewrite, because the cluster environment is basically consistent memory consumption .   #防止同意机器下瞬间fork所有redis进程做aof  rewrite, consumes a lot of memory (PS: Cluster must turn on AOF)   auto-aof-rewrite-percentage 80-100

2: Create a cluster

1. Start the Redis service

redis-server/server/cluster/6380/redis.conf redis-server/server/cluster/6381/redis.conf redis-server/server/c    luster/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. Create a cluster

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, using 127.0.0.1:prot actually very pit Daddy, #如果你使用的是java并且使用JedisCluster API to access #会报错: too many Redis cluste     R redirection. #比如我的本机ip为123.133.122.141, then you should use 123.133.122.141:prot #而非127.0.0.1:p Ort

The meaning of the command is as follows:

• The redis-trib.rb command for a given program is create , that means we want to create a new cluster.

• Option --replicas 1 indicates that we want to create a slave node for each master node in the cluster.

• The other parameters followed are the address lists of the instances, and we want the program to use the instance indicated by these addresses to create a new cluster.

the above command means redis-trib that The program creates a cluster that contains three primary nodes and three slave nodes.

redis-tribwill print out an expected configuration for you to see, if you feel no problem, you can enter, you will yes redis-trib apply this configuration to the cluster.

View cluster Information

Redis-cli-p 6380-c127.0.0.1:6380>cluster INFOCLUSTER_STATE:OKCLUSTER_SLOTS_ASSIGNED:16384CLUSTER_SLOTS_OK : 16384cluster_slots_pfail:0cluster_slots_fail:0cluster_known_nodes:6cluster_size:3cluster_current_epoch : 6cluster_my_epoch:1cluster_stats_messages_sent:19161cluster_stats_messages_received:19161

You can see that the current cluster_state is OK

use the./REDIS-TRIB.RB check host port to examine the status

    ./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.

This article is from the "eye-tired column" blog, be sure to keep this source http://miaoni.blog.51cto.com/10720758/1696050

Redis Cluster deployment