Redis-5.0.5集群部署

mkdir -p /usr/local/redis

yum -y install ruby ruby-devel rubygems rpm-build tcl gcc

tar zxvf   redis-5.0.5.tar.gz
cd  redis-5.0.5

make && make test
All tests passed without errors!
Cleanup: may take some time... OK
没有错误，test 测试ok！

[root@redis-1 src]$ make install PREFIX=/usr/local/redis

[root@redis-1 src]$ ls -ahl /usr/local/redis/bin
-rwxr-xr-x. 1 root root 353824 Oct 17 17:09 redis-benchmark  #redis性能测试工具启动，测试redis在你的系统及你的配置下的读写性能
-rwxr-xr-x. 1 root root 4045352 Oct 17 17:09 redis-check-aof #更新aof日志检查
-rwxr-xr-x. 1 root root 4045352 Oct 17 17:09 redis-check-rdb #本地数据库检查
-rwxr-xr-x. 1 root root 794384 Oct 17 17:09 redis-cli        #命令行操作工具（即客户端）
lrwxrwxrwx. 1 root root 12 Oct 17 17:09 redis-sentinel -> redis-server
-rwxr-xr-x. 1 root root 4045352 Oct 17 17:09 redis-server    #redis服务器的daemon启动程序

[root@redis-1 redis]$ echo 'export PATH=$PATH:/usr/local/redis/bin' >> /etc/profile
[root@redis-1 redis]$ source /etc/profile
[root@redis-1 redis]$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/redis/bin

[root@redis-1 redis]$ redis-server --help
Usage: ./redis-server [/path/to/redis.conf] [options]
./redis-server - (read config from stdin)
./redis-server -v or --version
./redis-server -h or --help
./redis-server --test-memory

[root@redis-1 redis]$ cd /opt/redis-5.0.5
[root@redis-1 redis-5.0.5]$ mkdir -p /usr/local/redis/conf
[root@redis-1 redis-5.0.5]$ cp redis.conf /usr/local/redis/conf

[root@redis-1 ~]$ cd /usr/local/redis_cluster/
[root@redis-1 redis_cluster]$ mkdir 6379 6380 6381

[root@redis-1 redis_cluster]$ cp /data/software/redis/redis-5.0.5/redis.conf /usr/local/redis_cluster/6379
[root@redis-1 redis_cluster]$ cp /data/software/redis/redis-5.0.5/redis.conf /usr/local/redis_cluster/6380
[root@redis-1 redis_cluster]$ cp /data/software/redis/redis-5.0.5/redis.conf /usr/local/redis_cluster/6381

port 6379                            #修改端口为6379、6380、6381
bind 0.0.0.0                         #改为其他节点机器可访问的ip，本机ip
daemonize no                         #设置为yes,使redis在后台运行
pidfile /var/run/redis_6379.pid      #修改端口为6379、6380、6381
#cluster-enabled yes                 #开启集群 把注释#去掉
#cluster-config-file nodes-6379.conf #集群的配置，把注释#去掉，并改为对应的6379,6380,6381
cluster-node-timeout 15000           #请求超时，默认15秒，可自行设置
masterauth test@2018                 #设置auth认证密码
requirepass test@2018                #设置auth认证密码，这两个都要写。

[root@redis-1 ~]$ /usr/local/redis/bin/redis-server /usr/local/redis_cluster/6379/redis.conf
12478:C 17 Oct 2019 22:15:41.209 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
12478:C 17 Oct 2019 22:15:41.209 # Redis version=5.0.5, bits=64, commit=00000000, modified=0, pid=12478, just started
12478:C 17 Oct 2019 22:15:41.209 # Configuration loaded
[root@redis-1 ~]$ /usr/local/redis/bin/redis-server /usr/local/redis_cluster/6380/redis.conf
[root@redis-1 ~]$ /usr/local/redis/bin/redis-server /usr/local/redis_cluster/6381/redis.conf

[root@redis-1 redis_cluster]$ ps -ef | grep redis
root 12479 1 0 22:15 ? 00:00:00 /usr/local/redis/bin/redis-server 10.110.10.3:6379 [cluster]
root 12484 1 0 22:15 ? 00:00:00 /usr/local/redis/bin/redis-server 10.110.10.3:6380 [cluster]
root 12503 1 0 22:19 ? 00:00:00 /usr/local/redis/bin/redis-server 10.110.10.3:6381 [cluster]

[root@redis-2 redis_cluster]$ ps -ef |grep redis
root 23225 1 0 22:43 ? 00:00:00 /usr/local/redis/bin/redis-server 10.110.10.4:6382 [cluster]
root 23230 1 0 22:43 ? 00:00:00 /usr/local/redis/bin/redis-server 10.110.10.4:6383 [cluster]
root 23235 1 0 22:43 ? 00:00:00 /usr/local/redis/bin/redis-server 10.110.10.4:6384 [cluster]
root 23240 18761 0 22:43 pts/2 00:00:00 grep --color=auto redis

[root@api-1 redis_cluster]$ redis-cli --cluster  create 10.110.10.3:6379 10.110.10.3:6380 10.110.10.3:6381 10.110.10.4:6382 10.110.10.4:6383 10.110.10.4:6384 --cluster-replicas 1 -a test@2018
Can I set the above configuration? (type 'yes' to accept):yes  #注意这里一定要输入  “yes” 全拼
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

redis-cli -a test@2018 --cluster check 10.110.10.3:6381  #这里可以写任意一个节点
或：
127.0.0.1:6381> cluster info
cluster_state:ok                             #所有slots正常则显示为OK，否则为error
cluster_slots_assigned:16384                 #多少slots被分配了，即多少被master管理了，16384为全部slots
cluster_slots_ok:16384                       #有多少slots是正常的
cluster_slots_pfail:0                        #有多少slots可能处于异常状态，处于这个状态并不表示有问题，仍能继续提供服务
cluster_slots_fail:0                         #有多少slots处于异常状态，需要修复才能服务
cluster_known_nodes:6                        #集群中的节点数
cluster_size:3                               #集群中master个数
cluster_current_epoch:6                      #本地的当前时间变量，用于故障切换时生成独一无二的增量版本号
cluster_my_epoch:2
cluster_stats_messages_ping_sent:251
cluster_stats_messages_pong_sent:240
cluster_stats_messages_meet_sent:3
cluster_stats_messages_sent:494              #通过集群消息总线发送的消息总数
cluster_stats_messages_ping_received:238
cluster_stats_messages_pong_received:254
cluster_stats_messages_meet_received:2
cluster_stats_messages_received:494          #通过集群消息总线收到的消息总数
127.0.0.1:7004> 

      1. echo "vm.overcommit_memory=1" >>/etc/sysctl.conf && sysctl -p
      2. sysctl vm.overcommit_memory=1
      3. echo "1" > /proc/sys/vm/overcommit_memory

      echo "never" > /sys/kernel/mm/transparent_hugepage/enabled 并将其添加到/etc/rc.local，以便在重新启动后保留设置

      [root@redis-1 ~]$ echo "511" > /proc/sys/net/core/somaxconn
      [root@redis-1 ~]$ echo -e “net.core.somaxconn=1024” >> /etc/sysctl.conf
      [root@redis-1 ~]$ sysctl -p