Linux CentOS 下安装版本 Redis 5.x 聚群操作手册 Red Hat Enterprise Linux Server release 7.1 的示例分析

序号项目值 1 OS版本 Red Hat Enterprise Linux Server release 7.1 (Maipo) 2 内核版本 3.10.0-229.el7.x86_64 3 Redis redis-5.0.4 4 Ruby ruby 2.3.4p301 (2017-03-30 revision 58214) [x86_64-linux] 节点信息规划本来只准备部署7001-7006 6个实例，但是redis集群提示最少需要3个主节点，6个节点才能完成启动，所以后面2个是后来加的。注意：这里因为是测试环境，所以将所有实例都放在了一台机器上，生产建议主备节点不要放在一台机器上序号 IP地址端口主备节点配置文件 1 192.168.9.216 7001 主 /data/program/redis/etc/redis-7001.conf 2 192.168.9.216 7002 主 /data/program/redis/etc/redis-7002.conf 3 192.168.9.216 7003 主 /data/program/redis/etc/redis-7003.conf 4 192.168.9.216 7004 备 /data/program/redis/etc/redis-7004.conf 5 192.168.9.216 7005 备 /data/program/redis/etc/redis-7005.conf 6 192.168.9.216 7006 备 /data/program/redis/etc/redis-7006.conf 一、下载对应的redis 安装包，并且解压和安装 [root@elk01 opt]# wget http://download.redis.io/releases/redis-5.0.4.tar.gz --2017-10-26 09:33:23-- http://download.redis.io/releases/redis-5.0.4.tar.gz Resolving download.redis.io (download.redis.io)... 109.74.203.151 Connecting to download.redis.io (download.redis.io)|109.74.203.151|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1711660 (1.6M) [application/x-gzip] Saving to: ‘redis-5.0.4.tar.gz’ 100%[======================================================>] 1,711,660 426KB/s in 3.9s 2017-10-26 09:33:28 (426 KB/s) - ‘redis-5.0.4.tar.gz’ saved [1711660/1711660] [root@elk01 program]# ll redis-5.0.4.tar.gz -rw-r--r-- 1 root root 1711660 Jul 24 21:59 redis-5.0.4.tar.gz [root@CentOS program]# mv redis-5.0.4 redis 二、创建对应的需要目录； [root@elk01 program]# cd redis [suven@CentOS redis]$ ll total 268 -rw-rw-r--. 1 suven suven 99445 Mar 18 12:21 00-RELEASENOTES -rw-rw-r--. 1 suven suven 53 Mar 18 12:21 BUGS -rw-rw-r--. 1 suven suven 1894 Mar 18 12:21 CONTRIBUTING -rw-rw-r--. 1 suven suven 1487 Mar 18 12:21 COPYING drwxr-xr-x. 8 root root 4096 Mar 26 00:01 data drwxrwxr-x. 6 suven suven 4096 Mar 25 23:12 deps drwxr-xr-x. 2 root root 4096 Mar 25 23:57 etc -rw-rw-r--. 1 suven suven 11 Mar 18 12:21 INSTALL drwxr-xr-x. 2 root root 4096 Mar 26 00:02 logs -rw-rw-r--. 1 suven suven 151 Mar 18 12:21 Makefile -rw-rw-r--. 1 suven suven 4223 Mar 18 12:21 MANIFESTO -rw-rw-r--. 1 suven suven 20555 Mar 18 12:21 README.md -rw-rw-r--. 1 suven suven 62155 Mar 18 12:21 redis.conf -rwxrwxr-x. 1 suven suven 275 Mar 18 12:21 runtest -rwxrwxr-x. 1 suven suven 280 Mar 18 12:21 runtest-cluster -rwxrwxr-x. 1 suven suven 281 Mar 18 12:21 runtest-sentinel -rw-rw-r--. 1 suven suven 9710 Mar 18 12:21 sentinel.conf drwxrwxr-x. 3 suven suven 4096 Mar 25 23:45 src -rw-r--r--. 1 root root 0 Mar 25 23:59 stdout drwxrwxr-x. 10 suven suven 4096 Mar 18 12:21 tests drwxrwxr-x. 8 suven suven 4096 Mar 18 12:21 utils 三、创建目录脚本如下： [root@CentOS redis]# mkdir -p /data/program/redis/etc [root@CentOS redis]# mkdir -p /data/program/redis/logs [root@CentOS redis]# mkdir -p /data/program/redis/run [root@CentOS redis]# mkdir -p /data/program/redis/data [root@CentOS redis]# mkdir -p /data/program/redis/data/{7001,7002,7003,7004,7005,7006} 四、上传配置文件到创建的etc目录上，执行修改脚本：（1）.修改配置ip:将配置文件大写的IP,转换成对应的服务器ip地址（127.0.0.1），具体到把个配置文件 sed -i "s/IP/ 127.0.0.1" /data/program/redis/etc/redis-7001.conf 或（linux 正规匹配所有文件） sed -i "s/IP/ 127.0.0.1" /data/program/redis/etc/redis-700*.conf (2).修改配置文件PORT：将配置文件大写的PORT,转换成对应的redis启动服务端口7001，具体到把个配置文件 sed -i "s/PORT/ 7001" /data/program/redis/etc/redis-7001.conf sed -i "s/PORT/ 7002" /data/program/redis/etc/redis-7002.conf sed -i "s/PORT/ 7003" /data/program/redis/etc/redis-7003.conf sed -i "s/PORT/ 7004" /data/program/redis/etc/redis-7004.conf sed -i "s/PORT/ 7005" /data/program/redis/etc/redis-7005.conf sed -i "s/PORT/ 7006" /data/program/redis/etc/redis-7006.conf 执行编译安装命令： make test [root@localhost redis]# make test cd src && make test make[1]: Entering directory `/data/program/redis/src 最后看到的结果： Hint: It's a good idea to run 'make test' ;) INSTALL install INSTALL install INSTALL install INSTALL install INSTALL install make[1]: Leaving directory `/data/program/redis/src' 备注:分分钟搞定Redis编译安装 1. 依赖包安装 yum -y install cpp binutils glibc glibc-kernheaders glibc-common glibc-devel gcc make gcc-c++ libstdc++-devel tcl 五、启动redis结点服务命令： [root@CentOS redis] cd /data/program/redis/ [root@CentOS redis] src/redis-server etc/redis-7001.conf [root@CentOS redis] src/redis-server etc/redis-7002.conf [root@CentOS redis] src/redis-server etc/redis-7003.conf [root@CentOS redis] src/redis-server etc/redis-7004.conf [root@CentOS redis] src/redis-server etc/redis-7005.conf [root@CentOS redis] src/redis-server etc/redis-7006.conf 六、查看redis结点服务是否正常启动： [suven@CentOS etc]$ ps -ef | grep redis root 7470 1 0 00:01 ? 00:00:14 /data/program/redis/src/redis-server 10.211.55.5:7001 [cluster] root 8377 1 0 00:01 ? 00:00:14 /data/program/redis/src/redis-server 10.211.55.5:7002 [cluster] root 8591 1 0 00:01 ? 00:00:14 /data/program/redis/src/redis-server 10.211.55.5:7003 [cluster] root 9597 1 0 00:02 ? 00:00:14 /data/program/redis/src/redis-server 10.211.55.5:7004 [cluster] root 9816 1 0 00:02 ? 00:00:14 /data/program/redis/src/redis-server 10.211.55.5:7005 [cluster] root 10031 1 0 00:02 ? 00:00:14 /data/program/redis/src/redis-server 10.211.55.5:7006 [cluster] suven 19158 9380 0 04:04 pts/0 00:00:00 grep --color=auto redis 注：如果没有看到进程信息；请查看 [root@CentOS redis]$ tail -200f logs/redis7001.log 910:C 25 Mar 2019 23:59:35.959 # Can't chdir to '/data/program/redis/data/7001': No such file or directory 7469:C 26 Mar 2019 00:01:32.452 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 7469:C 26 Mar 2019 00:01:32.452 # Redis version=5.0.4, bits=64, commit=00000000, modified=0, pid=7469, just started 7469:C 26 Mar 2019 00:01:32.452 # Configuration loaded 7470:M 26 Mar 2019 00:01:32.454 * No cluster configuration found, I'm 63243f121eb2e90ea3da9d6c7931b577c313e1a0 7470:M 26 Mar 2019 00:01:32.456 * Running mode=cluster, port=7001. 7470:M 26 Mar 2019 00:01:32.456 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128. 7470:M 26 Mar 2019 00:01:32.456 # Server initialized 七、执行结点实现聚群脚本： [root@CentOS redis] src/redis-trib.rb create --replicas 1 10.211.55.5:7001 10.211.55.5:7002 10.211.55.5:7003 10.211.55.5:7004 10.211.55.5:7005 10.211.55.5:7006 src/redis-cli --cluster create 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 127.0.0.1:7006 --cluster-replicas 1 （1）.注：需要安装ruby2.2.2以上版本，卸载老版本ruby2.0.0 [root@elk01 ~]# ruby -v ruby 2.0.0p648 (2015-12-16) [x86_64-linux] [root@elk01 ~]# rpm -qa | grep ruby ruby-libs-2.0.0.648-29.el7.x86_64 rubygem-bigdecimal-1.2.0-29.el7.x86_64 rubygems-2.0.14.1-29.el7.noarch rubygem-psych-2.0.0-29.el7.x86_64 rubygem-json-1.7.7-29.el7.x86_64 ruby-irb-2.0.0.648-29.el7.noarch rubygem-io-console-0.4.2-29.el7.x86_64 ruby-2.0.0.648-29.el7.x86_64 rubygem-rdoc-4.0.0-29.el7.noarch [root@elk01 ~]# yum erase ruby 注：如果还是旧片本，请参与centos7 rhel7安装较高版本ruby2.2、2.3、2.4笔记执行（2）.查看ruby软件版本号，如果低于ruby2.2，执行面删除 ruby -v rpm -qa | grep ruby （3）.重新安装ruby2.4版本脚本 yum install -y gcc* openssl* wget yum install centos-release-scl-rh yum install rh-ruby24 -y scl enable rh-ruby24 bash （4）.查看ruby软件版本号 [root@localhost redis]# ruby -v ruby 2.4.5p335 (2018-10-18 revision 65137) [x86_64-linux] [root@localhost redis]# yum install rubygems [root@localhost redis]# gem install redis 八、执行redis 结点聚群脚本；结果如下：其中会提示输入（yes/no）,输入yes 即可； [root@CentOS redis]# redis-cli --cluster create 10.211.55.5:7001 10.211.55.5:7002 10.211.55.5:7003 10.211.55.5:7004 10.211.55.5:7005 10.211.55.5:7006 --cluster-replicas 1 >>> Performing hash slots allocation on 6 nodes... Master[0] -> Slots 0 - 5460 Master[1] -> Slots 5461 - 10922 Master[2] -> Slots 10923 - 16383 Adding replica 10.211.55.5:7005 to 10.211.55.5:7001 Adding replica 10.211.55.5:7006 to 10.211.55.5:7002 Adding replica 10.211.55.5:7004 to 10.211.55.5:7003 >>> Trying to optimize slaves allocation for anti-affinity [WARNING] Some slaves are in the same host as their master M: 63243f121eb2e90ea3da9d6c7931b577c313e1a0 10.211.55.5:7001 slots:[0-5460] (5461 slots) master M: 53692efbc07d2279f267dbba441a06121ea1042f 10.211.55.5:7002 slots:[5461-10922] (5462 slots) master M: 4665614f463a77ee12f9afd680e96b7af69c9889 10.211.55.5:7003 slots:[10923-16383] (5461 slots) master S: baa658b4068c5125057e885ead90c985c308b9ae 10.211.55.5:7004 replicates 53692efbc07d2279f267dbba441a06121ea1042f S: 1a30085728c4d20c7528be2a2faa8d769b5456d1 10.211.55.5:7005 replicates 4665614f463a77ee12f9afd680e96b7af69c9889 S: e3e9c6e39f9969cc202cd90f045c2acb6b12b427 10.211.55.5:7006 replicates 63243f121eb2e90ea3da9d6c7931b577c313e1a0 Can I set the above configuration? (type 'yes' to accept): yes >>> Nodes configuration updated >>> Assign a different config epoch to each node >>> Sending CLUSTER MEET messages to join the cluster Waiting for the cluster to join ... >>> Performing Cluster Check (using node 10.211.55.5:7001) M: 63243f121eb2e90ea3da9d6c7931b577c313e1a0 10.211.55.5:7001 slots:[0-5460] (5461 slots) master 1 additional replica(s) S: e3e9c6e39f9969cc202cd90f045c2acb6b12b427 10.211.55.5:7006 slots: (0 slots) slave replicates 63243f121eb2e90ea3da9d6c7931b577c313e1a0 M: 4665614f463a77ee12f9afd680e96b7af69c9889 10.211.55.5:7003 slots:[10923-16383] (5461 slots) master 1 additional replica(s) M: 53692efbc07d2279f267dbba441a06121ea1042f 10.211.55.5:7002 slots:[5461-10922] (5462 slots) master 1 additional replica(s) S: 1a30085728c4d20c7528be2a2faa8d769b5456d1 10.211.55.5:7005 slots: (0 slots) slave replicates 4665614f463a77ee12f9afd680e96b7af69c9889 S: baa658b4068c5125057e885ead90c985c308b9ae 10.211.55.5:7004 slots: (0 slots) slave replicates 53692efbc07d2279f267dbba441a06121ea1042f [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered. 九、连接到对应的redis 聚群脚本：一定要 -c [root@CentOS redis]# src/redis-cli -c -h 10.211.55.5 -p 7001 10.211.55.5:7001> 十、查看redis聚群信息命令：CLUSTER info 10.211.55.5:7001> CLUSTER info cluster_state:ok cluster_slots_assigned:16384 cluster_slots_ok:16384 cluster_slots_pfail:0 cluster_slots_fail:0 cluster_known_nodes:6 cluster_size:3 cluster_current_epoch:6 cluster_my_epoch:1 cluster_stats_messages_ping_sent:385 cluster_stats_messages_pong_sent:385 cluster_stats_messages_sent:770 cluster_stats_messages_ping_received:380 cluster_stats_messages_pong_received:385 cluster_stats_messages_meet_received:5 cluster_stats_messages_received:770 十一、查看redis聚群结点分配信息命令（CLUSTER 区分大小写）：CLUSTER nodes 10.211.55.5:7001> CLUSTER nodes e3e9c6e39f9969cc202cd90f045c2acb6b12b427 10.211.55.5:7006@17006 slave 63243f121eb2e90ea3da9d6c7931b577c313e1a0 0 1553588727578 6 connected 4665614f463a77ee12f9afd680e96b7af69c9889 10.211.55.5:7003@17003 master - 0 1553588728081 3 connected 10923-16383 53692efbc07d2279f267dbba441a06121ea1042f 10.211.55.5:7002@17002 master - 0 1553588726573 2 connected 5461-10922 1a30085728c4d20c7528be2a2faa8d769b5456d1 10.211.55.5:7005@17005 slave 4665614f463a77ee12f9afd680e96b7af69c9889 0 1553588726000 5 connected baa658b4068c5125057e885ead90c985c308b9ae 10.211.55.5:7004@17004 slave 53692efbc07d2279f267dbba441a06121ea1042f 0 1553588728000 4 connected 63243f121eb2e90ea3da9d6c7931b577c313e1a0 10.211.55.5:7001@17001 myself,master - 0 1553588727000 1 connected 0-5460 10.211.55.5:7001> 十二、验证是否可用，测试用例 10.211.55.5:7001> set keytest testvalue OK 10.211.55.5:7001> get keytest "testvalue" 10.211.55.5:7001> CLUSTER INFO 打印集群的信息 CLUSTER NODES 列出集群当前已知的所有节点（node），以及这些节点的相关信息。 //节点 CLUSTER MEET <ip> <port> 将 ip 和 port 所指定的节点添加到集群当中，让它成为集群的一份子。 CLUSTER FORGET <node_id> 从集群中移除 node_id 指定的节点。 CLUSTER REPLICATE <node_id> 将当前节点设置为 node_id 指定的节点的从节点。 CLUSTER SAVECONFIG 将节点的配置文件保存到硬盘里面。 CLUSTER ADDSLOTS <slot> [slot ...] 将一个或多个槽（slot）指派（assign）给当前节点。 CLUSTER DELSLOTS <slot> [slot ...] 移除一个或多个槽对当前节点的指派。 CLUSTER FLUSHSLOTS 移除指派给当前节点的所有槽，让当前节点变成一个没有指派任何槽的节点。 CLUSTER SETSLOT <slot> NODE <node_id> 将槽 slot 指派给 node_id 指定的节点。 CLUSTER SETSLOT <slot> MIGRATING <node_id> 将本节点的槽 slot 迁移到 node_id 指定的节点中。 CLUSTER SETSLOT <slot> IMPORTING <node_id> 从 node_id 指定的节点中导入槽 slot 到本节点。 CLUSTER SETSLOT <slot> STABLE 取消对槽 slot 的导入（import）或者迁移（migrate）。 //键 CLUSTER KEYSLOT <key> 计算键 key 应该被放置在哪个槽上。 CLUSTER COUNTKEYSINSLOT <slot> 返回槽 slot 目前包含的键值对数量。 CLUSTER GETKEYSINSLOT <slot> <count> 返回 count 个 slot 槽中的键。 //新增 CLUSTER SLAVES node-id 返回一个master节点的slaves 列表

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