redis集群安装及维护 - 开发者知识库

[原创] redis集群安装及维护

仧尐 2019/03/12 24 redis/ 集群

先准备好redis和ruby的安装包：redis-4.0.2.tar.gz、ruby-2.4.2.tar.gz、redis-4.0.0.rc1.gem

1、安装Redis

```shell
tar -zxvf redis-4.0.2.tar.gz
mv redis-4.0.2 redis
cd /wls/hadoop/soft/redis
make PREFIX=/wls/hadoop/soft/redis && make install PREFIX=/wls/hadoop/soft/redis
```

2、安装ruby

```shell
tar -zxvf ruby-2.4.2.tar.gz
cd /wls/hadoop/soft/ruby-2.4.2
./configure --prefix=/wls/hadoop/soft/ruby/
make && make install
```

3、配置redis和ruby的环境变量

```shell
export REDIS_HOME=/wls/hadoop/soft/redis
export RUBY_HOME=/wls/hadoop/soft/ruby
PATH=$REDIS_HOME/src:$RUBY_HOME/bin:$PATH
```

4、安装插件

```shell
gem install -l redis-4.0.0.rc1.gem
```

5、实例配置

节点：192.168.3.137 10个实例

```shell
for i in {7000..7009};do (mkdir -p /wls/hadoop/soft/redis/redis-cluster/nodes-$i;cp /wls/hadoop/soft/redis/redis.conf /wls/hadoop/soft/redis/redis-cluster/nodes-$i;echo "
port $i
bind 192.168.3.137
daemonize yes
cluster-enabled yes
cluster-config-file nodes.conf
pidfile /wls/hadoop/soft/redis/redis-cluster/nodes-$i/redis.pid
logfile /wls/hadoop/soft/redis/redis-cluster/nodes-$i/redis.log
dir /wls/hadoop/soft/redis/redis-cluster/nodes-$i
save 3600 1
save 600 1000
save 60 100000
dbfilename dump.rdb
cluster-node-timeout 60000
cluster-require-full-coverage no
appendfsync no
#masterauth password
#requirepass password
maxmemory 16106127360
" > /wls/hadoop/soft/redis/redis-cluster/nodes-$i/redis.conf;);done;
```

节点：192.168.3.138 10个实例

```shell
for i in {7000..7009};do (mkdir -p /wls/hadoop/soft/redis/redis-cluster/nodes-$i;cp /wls/hadoop/soft/redis/redis.conf /wls/hadoop/soft/redis/redis-cluster/nodes-$i;echo "
port $i
bind 192.168.3.138
daemonize yes
cluster-enabled yes
cluster-config-file nodes.conf
pidfile /wls/hadoop/soft/redis/redis-cluster/nodes-$i/redis.pid
logfile /wls/hadoop/soft/redis/redis-cluster/nodes-$i/redis.log
dir /wls/hadoop/soft/redis/redis-cluster/nodes-$i
save 3600 1
save 600 1000
save 60 100000
dbfilename dump.rdb
cluster-node-timeout 60000
cluster-require-full-coverage no
appendfsync no
#masterauth password
#requirepass password
maxmemory 16106127360
" > /wls/hadoop/soft/redis/redis-cluster/nodes-$i/redis.conf;);done;
```

6、启动实例

192.168.3.137/138均需要执行

```shell
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7000/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7001/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7002/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7003/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7004/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7005/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7006/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7007/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7008/redis.conf
redis-server /wls/hadoop/soft/redis/redis-cluster/nodes-7009/redis.conf
```

7、启动集群

在137/138任意一台机器上执行

```shell
redis-trib.rb  create --replicas 1 192.168.3.137:7000 192.168.3.137:7001 192.168.3.137:7002 192.168.3.137:7003 192.168.3.137:7004 192.168.3.137:7005 192.168.3.137:7006 192.168.3.137:7007 192.168.3.137:7008 192.168.3.137:7009 192.168.3.138:7000 192.168.3.138:7001 192.168.3.138:7002 192.168.3.138:7003 192.168.3.138:7004 192.168.3.138:7005 192.168.3.138:7006 192.168.3.138:7007 192.168.3.138:7008 192.168.3.138:7009
```

8、关闭节点

```shell
for i in {7000..7009};do redis-cli -h 192.168.3.137 -p $i shutdown;done;
for i in {7000..7009};do redis-cli -h 192.168.3.138 -p $i shutdown;done;
```

9、其它命令

当然，我们也可以直接动态修改redis参数，如设置最大可用内存：

注：如果设置密码了，就需要加-a 密码认证参数

```shell
for i in {7000..7009};do /data0/soft/redis-4.0.2/src/redis-cli -h 192.168.3.137 -p $i -a password config set maxmemory 6442450944;done;
```

```shell
#查看集群状态
redis-cli –c –p 7000 -h 192.168.3.137 cluster info/nodes
#查看tps
redis-cli –c –p 7000 -h 192.168.3.137 -stat
#集群操作命令,增删检查
redis-trib.rb check/fix/add-node/del-node 192.168.3.137:7000
#删除指定key，其他操作类推
for i in {7000..7009};do redis-cli -h 192.168.3.137 -p $i -a password keys "KEY*" |xargs -t -i redis-cli -h 192.168.3.137 -p $i -a password DEL {};done;
```

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