初识redis-cluster
安装redis
1 [root@localhost ~]# cd /datas/soft/ 2 [root@localhost soft]# ll redis-5.0.0.tar.gz // 已经下载的最新版 3 -rwxrwxrwx 1 www www 1947721 Oct 22 14:21 redis-5.0.0.tar.gz 4 [root@localhost soft]# tar -xzf redis-5.0.0.tar.gz 5 [root@localhost soft]# cd redis-5.0.0 6 [root@localhost redis-5.0.0]# make 7 [root@localhost redis-5.0.0]# cd src 8 [root@localhost src]# make install PREFIX=/datas/soft/redis5 9 [root@localhost src]# mkdir /datas/soft/redis5/etc 10 [root@localhost src]# cp ../redis.conf /datas/soft/redis5/etc/ 11 [root@localhost src]# vim redis.conf 12 daemonize yes // 后台运行 13 [root@localhost src]# cd /datas/soft/redis5/bin/ 14 [root@localhost bin]# ./redis-server ../etc/redis.conf 15 16936:C 24 Oct 2018 20:01:42.406 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 16 16936:C 24 Oct 2018 20:01:42.406 # Redis version=5.0.0, bits=64, commit=00000000, modified=0, pid=16936, just started 17 16936:C 24 Oct 2018 20:01:42.406 # Configuration loaded 18 [root@localhost bin]# ps auxf | grep redis 19 root 16943 0.0 0.0 103304 872 pts/1 S+ 20:02 0:00 | \_ grep redis 20 root 16937 0.1 0.7 152484 7760 ? Ssl 20:01 0:00 ./redis-server 127.0.0.1:6379 21 [root@localhost bin]# ./redis-cli -p 6379 22 127.0.0.1:6379> set a hahaha6379 23 OK 24 127.0.0.1:6379> get a 25 "hahaha6379"
部署集群
1 [root@localhost bin]# cd ../etc 2 [root@localhost etc]# mkdir redis-cluster 3 [root@localhost etc]# cd redis-cluster 4 [root@localhost redis-cluster]# mkdir 30001 5 [root@localhost redis-cluster]# cd 30001 6 [root@localhost 30001]# cp ../../redis.conf ./ 7 [root@localhost 30001]# vim redis.conf 8 port 30001 // 绑定端口号 9 daemonize yes // 后台运行 10 pidfile /datas/soft/redis5/etc/redis-cluster/30001/redis.pid // 修改pid进程文件名 11 logfile /datas/soft/redis5/etc/redis-cluster/30001/redis.log // 修改日志文件名称 12 dir /datas/soft/redis5/etc/redis-cluster/30001/ // 修改数据文件存放地址 13 cluster-enabled yes // 启用集群 14 cluster-config-file nodes-30001.conf // 配置每个节点的配置文件，同样以端口号为名称 15 cluster-node-timeout 15000 // 配置集群节点的超时时间，可改可不改 16 appendonly yes // 启动AOF增量持久化策略 17 appendfsync always // 发生改变就记录日志 18 [root@localhost redis-cluster]# ll // 相同步骤配置其他端口 19 total 24 20 drwxr-xr-x 2 root root 4096 Oct 24 21:34 30001 21 drwxr-xr-x 2 root root 4096 Oct 24 21:34 30002 22 drwxr-xr-x 2 root root 4096 Oct 24 21:35 30003 23 drwxr-xr-x 2 root root 4096 Oct 24 21:35 30004 24 drwxr-xr-x 2 root root 4096 Oct 24 21:35 30005 25 drwxr-xr-x 2 root root 4096 Oct 24 21:35 30006 26 [root@localhost redis-cluster]# /datas/soft/redis5/bin/redis-server /datas/soft/redis5/etc/redis-cluster/30001/redis.conf // 启动 27 [root@localhost redis-cluster]# /datas/soft/redis5/bin/redis-server /datas/soft/redis5/etc/redis-cluster/30002/redis.conf 28 [root@localhost redis-cluster]# /datas/soft/redis5/bin/redis-server /datas/soft/redis5/etc/redis-cluster/30003/redis.conf 29 [root@localhost redis-cluster]# /datas/soft/redis5/bin/redis-server /datas/soft/redis5/etc/redis-cluster/30004/redis.conf 30 [root@localhost redis-cluster]# /datas/soft/redis5/bin/redis-server /datas/soft/redis5/etc/redis-cluster/30005/redis.conf 31 [root@localhost redis-cluster]# /datas/soft/redis5/bin/redis-server /datas/soft/redis5/etc/redis-cluster/30006/redis.conf 32 [root@localhost redis-cluster]# ps auxf | grep redis 33 root 17034 0.0 0.0 103304 876 pts/1 S+ 21:38 0:00 | \_ grep redis 34 root 16937 0.2 1.0 158116 10400 ? Ssl 20:01 0:13 ./redis-server 127.0.0.1:6379 35 root 16997 0.9 0.7 155552 7952 ? Ssl 21:38 0:00 /datas/soft/redis5/bin/redis-server 127.0.0.1:30001 [cluster] 36 root 17003 0.6 0.7 155552 7952 ? Ssl 21:38 0:00 /datas/soft/redis5/bin/redis-server 127.0.0.1:30002 [cluster] 37 root 17008 0.6 0.7 155552 7968 ? Ssl 21:38 0:00 /datas/soft/redis5/bin/redis-server 127.0.0.1:30003 [cluster] 38 root 17013 0.6 1.2 159648 12100 ? Ssl 21:38 0:00 /datas/soft/redis5/bin/redis-server 127.0.0.1:30004 [cluster] 39 root 17020 0.4 1.2 159648 12120 ? Ssl 21:38 0:00 /datas/soft/redis5/bin/redis-server 127.0.0.1:30005 [cluster] 40 root 17027 0.7 1.2 159648 12104 ? Ssl 21:38 0:00 /datas/soft/redis5/bin/redis-server 127.0.0.1:30006 [cluster] 41 [root@localhost redis-cluster]# ll /datas/soft/redis5/etc/redis-cluster/30001/ 42 total 88 43 -rw-r--r-- 1 root root 0 Oct 22 15:01 appendonly.aof 44 -rw-r--r-- 1 root root 175 Oct 24 21:38 dump.rdb 45 -rw-r--r-- 1 root root 787 Oct 24 21:38 nodes-30001.conf 46 -rwxr-xr-x 1 root root 62271 Oct 24 21:34 redis.conf 47 -rw-r--r-- 1 root root 10257 Oct 24 21:38 redis.log 48 -rw-r--r-- 1 root root 6 Oct 24 21:38 redis.pid 49 50 [root@localhost redis-cluster]# cd ../../bin/ 51 [root@localhost bin]# yum install -y ruby 52 [root@localhost bin]# yum install -y rubygems 53 [root@localhost bin]# cp /datas/soft/redis-5.0.0/src/redis-trib.rb ./ 54 [root@localhost bin]# ruby redis-trib.rb create --replicas 1 127.0.0.1:30001 127.0.0.1:30002 127.0.0.1:30003 127.0.0.1:30004 127.0.0.1:30005 127.0.0.1:30006 55 redis-trib.rb:6: odd number list for Hash 56 white: 29, 57 ^ 58 redis-trib.rb:6: syntax error, unexpected ':', expecting '}' 59 white: 29, 60 ^ 61 redis-trib.rb:7: syntax error, unexpected ',', expecting kEND 62 [root@localhost bin]# ruby -v 63 ruby 1.8.7 (2013-06-27 patchlevel 374) [x86_64-linux] 64 [root@localhost bin]# yum remove -y ruby 65 [root@localhost bin]# yum remove -y rubygems 66 [root@localhost bin]# cd /datas/soft/ 67 [root@localhost soft]# ll ruby-2.4.5.tar.gz // ruby最新版 68 -rwxr-xr-x 1 root root 14232887 Oct 24 19:33 ruby-2.4.5.tar.gz 69 [root@localhost soft]# tar -xzf ruby-2.4.5.tar.gz 70 [root@localhost soft]# cd ruby-2.4.5 71 [root@localhost ruby-2.4.5]# ./configure 72 [root@localhost ruby-2.4.5]# make 73 [root@localhost ruby-2.4.5]# make install 74 [root@localhost ruby-2.4.5]# ruby -v 75 ruby 2.4.5p335 (2018-10-18 revision 65137) [x86_64-linux] 76 [root@localhost ruby-2.4.5]# cd /datas/soft/redis5/bin/ 77 [root@localhost bin]# ruby redis-trib.rb create --replicas 1 127.0.0.1:30001 127.0.0.1:30002 127.0.0.1:30003 127.0.0.1:30004 127.0.0.1:30005 127.0.0.1:30006 78 WARNING: redis-trib.rb is not longer available! 79 You should use redis-cli instead. 80 81 All commands and features belonging to redis-trib.rb have been moved 82 to redis-cli. 83 In order to use them you should call redis-cli with the --cluster 84 option followed by the subcommand name, arguments and options. 85 86 Use the following syntax: 87 redis-cli --cluster SUBCOMMAND [ARGUMENTS] [OPTIONS] 88 89 Example: 90 redis-cli --cluster create 127.0.0.1:30001 127.0.0.1:30002 127.0.0.1:30003 127.0.0.1:30004 127.0.0.1:30005 127.0.0.1:30006 --cluster-replicas 1 91 92 To get help about all subcommands, type: 93 redis-cli --cluster help 94 95 [root@localhost bin]# ./redis-cli --cluster create 127.0.0.1:30001 127.0.0.1:30002 127.0.0.1:30003 127.0.0.1:30004 127.0.0.1:30005 127.0.0.1:30006 --cluster-replicas 1 96 >>> Performing hash slots allocation on 6 nodes... 97 Master[0] -> Slots 0 - 5460 98 Master[1] -> Slots 5461 - 10922 99 Master[2] -> Slots 10923 - 16383 100 Adding replica 127.0.0.1:30004 to 127.0.0.1:30001 101 Adding replica 127.0.0.1:30005 to 127.0.0.1:30002 102 Adding replica 127.0.0.1:30006 to 127.0.0.1:30003 103 >>> Trying to optimize slaves allocation for anti-affinity 104 [WARNING] Some slaves are in the same host as their master 105 M: 0ef9bb46603bc2703e2f812316b2d17e4664a285 127.0.0.1:30001 106 slots:[0-5460] (5461 slots) master 107 M: 1cce19c5b8f58666199445ee858b0a699cf523f9 127.0.0.1:30002 108 slots:[5461-10922] (5462 slots) master 109 M: 040afde427d4df0738b4705006309fc171403613 127.0.0.1:30003 110 slots:[10923-16383] (5461 slots) master 111 S: 7bb7a15f22730493cd7c66954a39e4008788c879 127.0.0.1:30004 112 replicates 1cce19c5b8f58666199445ee858b0a699cf523f9 113 S: c08daea6c990cb2732d95ae03c201c94523c0eff 127.0.0.1:30005 114 replicates 040afde427d4df0738b4705006309fc171403613 115 S: 7acc8a1f489ec954f069f998792eea8982653e70 127.0.0.1:30006 116 replicates 0ef9bb46603bc2703e2f812316b2d17e4664a285 117 Can I set the above configuration? (type 'yes' to accept): yes 118 >>> Nodes configuration updated 119 >>> Assign a different config epoch to each node 120 >>> Sending CLUSTER MEET messages to join the cluster 121 Waiting for the cluster to join 122 .. 123 >>> Performing Cluster Check (using node 127.0.0.1:30001) 124 M: 0ef9bb46603bc2703e2f812316b2d17e4664a285 127.0.0.1:30001 125 slots:[0-5460] (5461 slots) master 126 1 additional replica(s) 127 S: 7bb7a15f22730493cd7c66954a39e4008788c879 127.0.0.1:30004 128 slots: (0 slots) slave 129 replicates 1cce19c5b8f58666199445ee858b0a699cf523f9 130 M: 1cce19c5b8f58666199445ee858b0a699cf523f9 127.0.0.1:30002 131 slots:[5461-10922] (5462 slots) master 132 1 additional replica(s) 133 S: 7acc8a1f489ec954f069f998792eea8982653e70 127.0.0.1:30006 134 slots: (0 slots) slave 135 replicates 0ef9bb46603bc2703e2f812316b2d17e4664a285 136 S: c08daea6c990cb2732d95ae03c201c94523c0eff 127.0.0.1:30005 137 slots: (0 slots) slave 138 replicates 040afde427d4df0738b4705006309fc171403613 139 M: 040afde427d4df0738b4705006309fc171403613 127.0.0.1:30003 140 slots:[10923-16383] (5461 slots) master 141 1 additional replica(s) 142 [OK] All nodes agree about slots configuration. 143 >>> Check for open slots... 144 >>> Check slots coverage... 145 [OK] All 16384 slots covered. 146 [root@localhost bin]# ./redis-cli -c -p 30001 147 127.0.0.1:30001> set a hahahaha30001 148 -> Redirected to slot [15495] located at 127.0.0.1:30003 149 OK 150 127.0.0.1:30003> get a 151 "hahahaha30001" 152 127.0.0.1:30003> 153 [root@localhost bin]# ./redis-cli -c -p 30006 154 127.0.0.1:30006> get a 155 -> Redirected to slot [15495] located at 127.0.0.1:30003 156 "hahahaha30001" 157 127.0.0.1:30003>
参考资料
https://www.cnblogs.com/it-cen/p/4295984.html
https://blog.csdn.net/naixiyi/article/details/51346880
https://www.cnblogs.com/PatrickLiu/p/8458788.html
http://www.runoob.com/ruby/ruby-installation-unix.html
https://blog.csdn.net/vtopqx/article/details/50235737
------------------------------- 2019-08-12 -----------------------------------------
单实例数据迁移到Cluster
https://cloud.tencent.com/developer/article/1433055
https://www.18188.org/articles/2016/04/23/1461374145366.html
