Linux operation and Architecture-redis cluster

First, Introduction

after Redis cluster 3.0, you need at least 3 (Master) +3 (Slave) to build a cluster, a decentralized, distributed storage architecture that can share data across multiple nodes . resolves issues such as redis high availability, scalability, and more.

II. Installation and Deployment

1. Environment

[Email protected] ~]# cat/etc/redhat-6.9~]# uname-R2.6. -696~]#/etc/init.d/is ~~]# hostname-I  10.0. 0.2

2. Redis cluster is based on a redis that has been installed on the previous blog post

① Creating a cluster node directory

mkdir/usr/local/redis-cluster/{9001..9006}/data-P[[email protected] Redis-cluster]# ll/usr/local/redis-cluster/ Total -drwxr-xr-x5Root root4096 2018- to- -  -: - 9001drwxr-xr-x5Root root4096 2018- to- -  -: at 9002drwxr-xr-x5Root root4096 2018- to- -  -: - 9003drwxr-xr-x5Root root4096 2018- to- -  -: - 9004drwxr-xr-x5Root root4096 2018- to- -  -: - 9005drwxr-xr-x5Root root4096 2018- to- -  -: the 9006drwxr-xr-x2Root root4096 2018- to- -  -: WuBin

② Creating a command directory

Mkdir/usr/local/redis-cluster/bin-/server/tools/redis-3.2. 8/SRCCP mkreleasehdr.sh redis-benchmark redis-check-aof redis-check-dump redis-cli Redis-server Redis-trib.rb/usr/local/redis-cluster/bin

③ Creating a Redis instance

CP-A/usr/local/redis/*  /usr/local/redis-cluster/9001/

Modifying the redis.conf configuration file

Port9001                                 #每个节点的端口号daemonize yesbind10.0.0.2                             #绑定当前机器 IPdir/usr/local/redis-cluster/9001/data/# data File storage location Pidfile/var/run/redis_9001.pid #pid 9001 and port to correspond to cluster-enabled Yes #启动集群模式cluster-config-file nodes9001.conf #9001和port要对应cluster-node-timeout15000appendonly Yes

④ Create another 5 Redis instances

Cp-a/usr/local/redis-cluster/9001/*  /usr/local/redis-cluster/9002cp-a/usr/local/ redis-cluster/9001/*/usr/local/redis-cluster/9003cp-a/usr/local/redis-cluster/9001/*/usr/local/redis-cluster/ 9004cp-a/usr/local/redis-cluster/9001/*/usr/local/redis-cluster/9005cp-a/usr/local/redis-cluster/9001/*/usr/ local/redis-cluster/9006

Modify the redis.conf configuration file in turn

9001                                #修改以下4处, change to 9002, 9003, 9004, 9005, 9006/usr/local/redis-cluster/9001/data/  /  var/run/redis_9001.pid         cluster-config-file nodes9001.conf       

# # #到此为止基础环境已准备好 # #

Third, install the Ruby environment

# # # #直接执行gem Install Redis, error # # #

gem install Redis      Error:  error installing Redis:              2.2.  2.  

① Installation and Installation RVM

GPG2--keyserver HKP://keys.gnupg.net  --recv-keysd39dc0e3get. Rvm.io | bash- S Stable   /-name Rvm-print  

② View a known version of Ruby in the RVM library

③ Installing a ruby version

2.3. 3

④ using a ruby version

2.3. 3  

⑤ Setting the default version

2.3. 3 --default

⑥ uninstalling a known version

2.0. 0

⑦ Installing Redis

⑧ View Ruby version

Four, cluster construction

1. Start a redis with six nodes

redis-server/usr/local/redis-cluster/9001/redis.conf Redis-server/usr/local/redis-cluster/9002/redis.conf Redis-server/usr/local/redis-cluster/9003/redis.conf Redis-server/usr/local/redis-cluster/9004/redis.conf Redis-server/usr/local/redis-cluster/9005/redis.conf Redis-server/usr/local/redis-cluster/9006/redis.conf# # # #查看进程 # # #[email protected]~]# PS aux|grep redisroot2441  0.1  0.9 135592  9788? Ssl ,: -   0: +Redis-server10.0.0.2:9001[cluster] root2445  0.1  0.9 135592  9800? Ssl ,: in   0: -Redis-server10.0.0.2:9002[cluster] root2449  0.1  0.9 135592  9792? Ssl ,: in   0: +Redis-server10.0.0.2:9003[cluster] root2453  0.1  0.7 133544  7728? Ssl ,: in   0: +Redis-server10.0.0.2:9004[cluster] root2457  0.1  0.9 135592  9808? Ssl ,: in   0: -Redis-server10.0.0.2:9005[cluster] root2461  0.1  0.9 135592  9784? Ssl ,: in   0: -Redis-server10.0.0.2:9006[Cluster]

2. Create a cluster

1 10.0. 0.2:900110.0. 0.2:900210.0. 0.2:900310.0. 0.2:900410.0. 0.2:900510.0. 0.2:9006

# # #命令说明 # #

1 1:116383 Solt, the default will give us an average distribution, of course you can specify that the subsequent increase or decrease of nodes can also be reassigned.

# # #输入yes后开始创建集群 # #

# # #如所示, Cluster creation Success # # #

3. Cluster verification

① connecting cluster nodes using client commands

[Email protected] ~]# redis-cli-h10.0.0.2-c-p900110.0.0.2:9001>Setname Lulu-Redirected to slot [5798] located at10.0.0.2:9002#自动连接到了9002节点, this is a data distribution feature of the clusterOK10.0.0.2:9002>Getname"Lulu"

② Connection Other node verification

10.0. 0.2 9003 10.0. 0.2:9003get  name, redirected to slot [579810.0.  0.2:9002"Lulu"

# # # #至此, Redis cluster Setup Complete # # #

Linux operation and Architecture-redis cluster