redis集群

1、环境

master节点    192.168.56.11  端口：7001,7002
slave节点     192.168.56.12  端口：7003,7004
slave节点     192.168.56.13  端口：7005,7006

2.创建目录

192.168.56.11
mkdir /data/redis/cluster/redis_{7001,7002} -p

vim /data/redis/cluster/redis_7001/redis_7001.conf 

bind 192.168.56.11
port 7001
daemonize yes
pidfile "/data/redis/cluster/redis_7001/redis_7001.pid"
logfile "/data/redis/cluster/redis_7001/redis_7001.log"
dir /data/redis/cluster/redis_7001/
masterauth 123456
requirepass 123456
appendonly yes
cluster-enabled yes
cluster-config-file nodes-7001.conf
cluster-node-timeout 15000

vim /data/redis/cluster/redis_7002/redis_7002.conf
 
bind 192.168.56.11
port 7002
daemonize yes
pidfile "/data/redis/cluster/redis_7002/redis_7002.pid"
logfile "/data/redis/cluster/redis_7002/redis_7002.log"
dir /data/redis/cluster/redis_7002/
masterauth 123456
requirepass 123456
appendonly yes
cluster-enabled yes
cluster-config-file nodes-7002.conf
cluster-node-timeout 15000



192.168.56.12 /192.168.56.13参考11都一样的
mkdir /data/redis/cluster/redis_{7003,7004} -p
192.168.56.13
mkdir /data/redis/cluster/redis_{7006,7005} -p

3、启动redis

redis-server /data/redis/cluster/redis_7001/redis_7001.conf
redis-server /data/redis/cluster/redis_7002/redis_7002.conf

4.创建集群

低版本需要安装ruby环境

# yum -y groupinstall "Development Tools"
# yum install -y gdbm-devel libdb4-devel libffi-devel libyaml libyaml-devel ncurses-devel openssl-devel readline-devel tcl-devel
# mkdir -p ~/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS}
# wget http://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.3.tar.gz -P ~/rpmbuild/SOURCES
# wget http://raw.githubusercontent.com/tjinjin/automate-ruby-rpm/master/ruby22x.spec -P ~/rpmbuild/SPECS
# rpmbuild -bb ~/rpmbuild/SPECS/ruby22x.spec
# rpm -ivh ~/rpmbuild/RPMS/x86_64/ruby-2.2.3-1.el7.x86_64.rpm
# gem install redis                 #目的是安装这个，用于配置集群

#cp /usr/local/redis/src/redis-trib.rb /usr/bin/

#redis-trib.rb create --replicas 1 192.168.56.11:7001 192.168.56.11:7002 192.168.56.12:7003 192.168.56.12:7004 192.168.56.13:7005 192.168.56.13:7006

5、5.0的不用可以直接创建

redis-cli -a 123456 --cluster create 192.168.56.11:7001 192.168.56.11:7002 192.168.56.12:7003 192.168.56.12:7004 192.168.56.13:7005 192.168.56.13:7006 --cluster-replicas 1
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 192.168.56.12:7004 to 192.168.56.11:7001
Adding replica 192.168.56.13:7006 to 192.168.56.12:7003
Adding replica 192.168.56.11:7002 to 192.168.56.13:7005
M: 9db1a6bd175f51b03d706cb5921ddc0f0ecb53df 192.168.56.11:7001
   slots:[0-5460] (5461 slots) master
S: c244f42b9cb9f35ab7f13342af3b683820ec7b4f 192.168.56.11:7002
   replicates 3570580694cb31afd9f9a483dc1189c26b629419
M: 895222913dc3e98d2c86b36d4f20b09975a4e7fc 192.168.56.12:7003
   slots:[5461-10922] (5462 slots) master
S: b1e2739478199fe583906fcbec427f3a3339921b 192.168.56.12:7004
   replicates 9db1a6bd175f51b03d706cb5921ddc0f0ecb53df
M: 3570580694cb31afd9f9a483dc1189c26b629419 192.168.56.13:7005
   slots:[10923-16383] (5461 slots) master
S: f1176743f2469e44d91e800f5cb303d506b172d6 192.168.56.13:7006
   replicates 895222913dc3e98d2c86b36d4f20b09975a4e7fc
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
[OK] All 16384 slots covered.

　查看日志

[root@linux-node1 redis_7001]# cat nodes-7001.conf 
895222913dc3e98d2c86b36d4f20b09975a4e7fc 192.168.56.12:7003@17003 master - 0 1587472901829 3 connected 5461-10922
3570580694cb31afd9f9a483dc1189c26b629419 192.168.56.13:7005@17005 master - 0 1587472903837 5 connected 10923-16383
f1176743f2469e44d91e800f5cb303d506b172d6 192.168.56.13:7006@17006 slave 895222913dc3e98d2c86b36d4f20b09975a4e7fc 0 1587472904879 6 connected
9db1a6bd175f51b03d706cb5921ddc0f0ecb53df 192.168.56.11:7001@17001 myself,master - 0 1587472905000 1 connected 0-5460
c244f42b9cb9f35ab7f13342af3b683820ec7b4f 192.168.56.11:7002@17002 slave 3570580694cb31afd9f9a483dc1189c26b629419 0 1587472905883 5 connected
b1e2739478199fe583906fcbec427f3a3339921b 192.168.56.12:7004@17004 slave 9db1a6bd175f51b03d706cb5921ddc0f0ecb53df 0 1587472906887 4 connected
vars currentEpoch 6 lastVoteEpoch 0

　6、查看集群状态

[root@linux-node1 ~]# redis-cli -c -h 192.168.56.11 -p 7001 -a 123456 
192.168.56.11:7001> CLUSTER INFO        #集群状态 
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:61
cluster_stats_messages_pong_sent:65
cluster_stats_messages_sent:126
cluster_stats_messages_ping_received:60
cluster_stats_messages_pong_received:61
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:126
192.168.56.11:7001> CLUSTER NODES      #列出节点信息
895222913dc3e98d2c86b36d4f20b09975a4e7fc 192.168.56.12:7003@17003 master - 0 1587472964315 3 connected 5461-10922
3570580694cb31afd9f9a483dc1189c26b629419 192.168.56.13:7005@17005 master - 0 1587472963000 5 connected 10923-16383
f1176743f2469e44d91e800f5cb303d506b172d6 192.168.56.13:7006@17006 slave 895222913dc3e98d2c86b36d4f20b09975a4e7fc 0 1587472963311 6 connected
9db1a6bd175f51b03d706cb5921ddc0f0ecb53df 192.168.56.11:7001@17001 myself,master - 0 1587472961000 1 connected 0-5460
c244f42b9cb9f35ab7f13342af3b683820ec7b4f 192.168.56.11:7002@17002 slave 3570580694cb31afd9f9a483dc1189c26b629419 0 1587472965318 5 connected
b1e2739478199fe583906fcbec427f3a3339921b 192.168.56.12:7004@17004 slave 9db1a6bd175f51b03d706cb5921ddc0f0ecb53df 0 1587472966324 4 connected
192.168.56.11:7001> set key111 aaa
-> Redirected to slot [13680] located at 192.168.56.13:7005
OK
192.168.56.13:7005> set key222 bbb
-> Redirected to slot [2320] located at 192.168.56.11:7001
OK
192.168.56.11:7001> set key333 ccc
-> Redirected to slot [7472] located at 192.168.56.12:7003
OK
192.168.56.12:7003>  get key111
-> Redirected to slot [13680] located at 192.168.56.13:7005
"aaa"
192.168.56.13:7005>  get key333
-> Redirected to slot [7472] located at 192.168.56.12:7003
"ccc"

#分别写到不同的切片上了