redis-3.0.6 安装集群

谁借莪１个温暖的怀抱￠ 2022-03-17 15:50 228阅读 0赞

redis安装包下载：  
[http://download.redis.io/releases/redis-3.0.6.tar.gz][http_download.redis.io_releases_redis-3.0.6.tar.gz]

安装报错1，需要下载tcl8.6.1-src.tar.gz  
\[root@node1 src\]\# make test  
You need tcl 8.5 or newer in order to run the Redis test  
安装报错2  
\*\*\* \[err\]: Test replication partial resync: ok psync (diskless: yes, reconnect: 1) in tests/integration/replication-psync.tcl  
在解压目录中修改 tests/integration/replication-psync.tcl，把 after 100 改成 after 500，这个参数貌似是等待的毫秒数  
\[root@localhost redis-3.2.3\]\# vim tests/integration/replication-psync.tcl  
if (KaTeX parse error: Expected '\}', got 'EOF' at end of input: …for \{set j 0\} \{ j < KaTeX parse error: Expected 'EOF', got '\}' at position 12: duration\*10\}̲ \{incr j\} \{ …master dbsize\] keys, SLAVE \[$slave dbsize\] keys"\}

如下过程是部署在一台机器上  
1.准备节点  
在/opt/redis-3.0.6在建data,conf,log目录，分别修改每个redis实例的配置文件  
port 7000  
cluster-enabled yes  
cluster-config-file nodes-7000.conf  
cluster-node-timeout 15000  
logfile “/opt/redis-3.0.6/log/redis-7000.log”  
dbfilename dump7000.rdb  
dir /opt/redis-3.0.6/data

./redis-server …/conf/redis-7000.conf &  
./redis-server …/conf/redis-7001.conf &  
./redis-server …/conf/redis-7002.conf &  
./redis-server …/conf/redis-7003.conf &  
./redis-server …/conf/redis-7004.conf &  
./redis-server …/conf/redis-7005.conf &

2.安装redis-trib.rb创建集群  
手工创建很复杂，如果节点多，那就更复杂，需要一个工具redis-trib.rb快速搭建。–replicas 1 是指定集群中每个主节点配置几个从节点  
执行之前需要安装https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.gz  
将gem ruby cp 到/usr/local/bin  
安装rubygem redis依赖：  
[http://rubygems.org/downloads/redis-3.3.0.gem][http_rubygems.org_downloads_redis-3.3.0.gem]  
gem install -l redis-3.3.0.gem  
gem list --check redis gem

创建集群，最少6个节点，三主三从  
redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005  
如果执行报错，则需要删除data目录下面的数据文件和node.conf。\[ERR\] Node 127.0.0.1:7000 is not empty. Either the node already knows other nodes (check with CLUSTER NODES) or contains some key in database 0.

集群完整性检查,只需要给出集群中任意一个节点的地址就可以完成整个集群的检查工作。  
redis-trib.rb check 127.0.0.1:7000

集群扩展集群：  
新建两个节点  
./redis-server …/conf/redis-7006.conf &  
./redis-server …/conf/redis-7007.conf &  
将节点加入到集群  
redis-trib.rb add-node 127.0.0.1:7006 127.0.0.1:7000  
redis-trib.rb add-node 127.0.0.1:7007 127.0.0.1:7000  
迁移槽和数据  
redis-trib.rb reshard 127.0.0.1:7000  
检查节点之间槽的均衡性  
redis-trib.rb rebalance 127.0.0.1:7000  
添加从节点  
redis-cli -c -p 7007  
cluster replicate master\_id（89844a21fc7fb9cfdcd94f285ac307f3ef1d791f）

[http_download.redis.io_releases_redis-3.0.6.tar.gz]: http://download.redis.io/releases/redis-3.0.6.tar.gz
[http_rubygems.org_downloads_redis-3.3.0.gem]: http://rubygems.org/downloads/redis-3.3.0.gem