这里写目录标题
redis应用
redis单机部署
powershell
关闭防火墙
[root@zyq ~]#: yum -y install wget make gcc gcc-c++
......
[root@zyq ~]#: wget https://download.redis.io/redis-stable.tar.gz
--2024-01-01 19:41:14-- https://download.redis.io/redis-stable.tar.gz
Resolving download.redis.io (download.redis.io)... 45.60.125.1
Connecting to download.redis.io (download.redis.io)|45.60.125.1|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3477620 (3.3M) [application/octet-stream]
Saving to: 'redis-stable.tar.gz'
redis-stable.tar.gz 100%[===========================================>] 3.32M 3.61MB/s in 0.9s
2024-01-01 19:41:15 (3.61 MB/s) - 'redis-stable.tar.gz' saved [3477620/3477620]
[root@zyq ~]#: ls
anaconda-ks.cfg redis-stable.tar.gz
[root@zyq ~]#: tar xf redis-stable.tar.gz
[root@zyq ~]#: ls
anaconda-ks.cfg redis-stable redis-stable.tar.gz
[root@zyq ~]#: cd redis-stable/
[root@zyq redis-stable]#: ls
00-RELEASENOTES CONTRIBUTING.md INSTALL README.md runtest-cluster SECURITY.md tests
BUGS COPYING Makefile redis.conf runtest-moduleapi sentinel.conf TLS.md
CODE_OF_CONDUCT.md deps MANIFESTO runtest runtest-sentinel src utils
[root@zyq redis-stable]#: make
[root@zyq redis-stable]#: make install
cd src && make install
make[1]: Entering directory '/root/redis-stable/src'
CC Makefile.dep
Hint: It's a good idea to run 'make test' ;)
INSTALL redis-server
INSTALL redis-benchmark
INSTALL redis-cli
make[1]: Leaving directory '/root/redis-stable/src'
[root@zyq redis-stable]#: mkdir /etc/redis
[root@zyq redis-stable]#: cp redis.conf /etc/redis/
[root@zyq redis-stable]#: echo 'vm.overcommit_memory = 1' >> /etc/sysctl.conf
[root@zyq redis-stable]#: cat /etc/sysctl.conf
# sysctl settings are defined through files in
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
#
# Vendors settings live in /usr/lib/sysctl.d/.
# To override a whole file, create a new file with the same in
# /etc/sysctl.d/ and put new settings there. To override
# only specific settings, add a file with a lexically later
# name in /etc/sysctl.d/ and put new settings there.
#
# For more information, see sysctl.conf(5) and sysctl.d(5).
vm.overcommit_memory = 1
[root@zyq redis-stable]#: echo never > /sys/kernel/mm/transparent_hugepage/enabled
[root@zyq redis-stable]#: cd
[root@zyq ~]#: redis-server /etc/redis/redis.conf
7862:C 01 Jan 2024 19:57:38.943 * oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
7862:C 01 Jan 2024 19:57:38.943 * Redis version=7.2.3, bits=64, commit=00000000, modified=0, pid=7862, just started
7862:C 01 Jan 2024 19:57:38.943 * Configuration loaded
7862:M 01 Jan 2024 19:57:38.944 * Increased maximum number of open files to 10032 (it was originally set to 1024).
7862:M 01 Jan 2024 19:57:38.944 * monotonic clock: POSIX clock_gettime
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ Redis 7.2.3 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in standalone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 7862
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | https://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
7862:M 01 Jan 2024 19:57:38.945 * Server initialized
7862:M 01 Jan 2024 19:57:38.945 * Ready to accept connections tcp
[root@zyq ~]#: ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 511 127.0.0.1:6379 0.0.0.0:*
LISTEN 0 128 [::]:22 [::]:*
LISTEN 0 511 [::1]:6379 [::]:*
[root@zyq ~]#: redis-cli
127.0.0.1:6379> 使redis在后台运行需要修改配置文件/etc/redis/redis.conf，将daemonize值设为yes
默认情况下，redis连接是不需要经过认证的，而redis承载了企业大部分的请求流量，如果不经过认证很有可能在互联网上遭受攻击，所以需要在配置文件中为redis设置密码认证，且密码最好随机生成，保证没有规律可言。
powershell
[root@zyq ~]#: vim /etc/redis/redis.conf
更改一下配置
bind 192.168.227.153 将127.0.0.1改为本机ip
daemonize yes no改为yes
# requirepass foobared 取消这行注释
requirepass hhh123 或者添加自定义密码
再重新启动
[root@zyq ~]#: redis-server /etc/redis/redis.conf
[root@zyq ~]#: ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6379 0.0.0.0:*
LISTEN 0 128 [::]:22 [::]:*
[root@zyq ~]#: redis-cli -h 192.168.227.153
192.168.227.153:6379> key *
(error) ERR unknown command 'key', with args beginning with: '*'
192.168.227.153:6379> auth hhh123
OKredis主从
powershell
[root@zyq ~]#: cd /etc/redis/
[root@zyq redis]#: ls
redis.conf
[root@zyq redis]#: mv redis.conf 6379.conf
[root@zyq redis]#: cp 6379.conf 6380.conf
更改端口号
port 6380
pidfile /var/run/redis_6380.pid
logfile "/var/log/redis6380.log"
replicaof 192.168.227.153 6379 在从上认主（由于使用一台虚拟机来配置，所以要修改端口号）
masterauth hhh123 设置密码
[root@zyq redis]#: redis-server /etc/redis/6379.conf
[root@zyq redis]#: redis-server /etc/redis/6380.conf
[root@zyq redis]#: ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6379 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6380 0.0.0.0:*
LISTEN 0 128 [::]:22 [::]:*
[root@zyq redis]#: ps -ef | grep redis
root 7967 1 0 20:14 ? 00:00:01 redis-server 192.168.227.153:6379
root 7978 1467 0 20:16 pts/0 00:00:00 vim /etc/redis/redis.conf
root 8012 1 0 20:30 ? 00:00:00 redis-server 192.168.227.153:6380
root 8030 7881 0 20:31 pts/1 00:00:00 grep --color=auto redis
测试登录从库
[root@zyq ~]#: redis-cli -h 192.168.227.153 -p 6380
192.168.227.153:6380> auth hhh123
OK
192.168.227.153:6380> keys *
(empty array)
192.168.227.153:6380>
登录主库
[root@zyq redis]#: redis-cli -h 192.168.227.153 -p 6379
192.168.227.153:6379> auth hhh123
OK
192.168.227.153:6379> keys *
(empty array)
192.168.227.153:6379>
在主库上添加
192.168.227.153:6379> set age 20
OK
192.168.227.153:6379> keys *
1) "age"
在从库上给查看
192.168.227.153:6380> keys *
1) "age"
查看从库信息
192.168.227.153:6380> info replication
# Replication
role:slave
master_host:192.168.227.153
master_port:6379
master_link_status:up
master_last_io_seconds_ago:4
master_sync_in_progress:0
slave_read_repl_offset:571
slave_repl_offset:571
slave_priority:100
slave_read_only:1
replica_announced:1
connected_slaves:0
master_failover_state:no-failover
master_replid:23aecbcf1431e181f485ef5cea33a424fc0c39d2
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:571
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:15
repl_backlog_histlen:557
查看主库信息
192.168.227.153:6379> info replication
# Replication
role:master
connected_slaves:1
slave0:ip=192.168.227.153,port=6380,state=online,offset=655,lag=1
master_failover_state:no-failover
master_replid:23aecbcf1431e181f485ef5cea33a424fc0c39d2
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:655
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:655redis哨兵
powershell
删除上面配置的只从环境
[root@zyq redis]#: ls
6379.conf 6380.conf dump.rdb
[root@zyq redis]#: rm -rf dump.rdb
[root@zyq redis]#: rm -rf 6380.conf
[root@zyq redis]#: cd
[root@zyq ~]#: ls
anaconda-ks.cfg dump.rdb redis-stable redis-stable.tar.gz
[root@zyq ~]#: rm -rf dump.rdb
配置三个主
[root@zyq redis]#: ls
6379.conf
[root@zyq redis]#: cp 6379.conf 6381.conf
[root@zyq redis]#: cp 6379.conf 6380.conf
[root@zyq redis]#: ls
6379.conf 6380.conf 6381.conf
[root@zyq redis]#: vim 6380.conf 638
2 files to edit
更改以下参数
port 6380
pidfile /var/run/redis_6380.pid
logfile "/var/log/redis6380.log"
[root@zyq redis]#: vim 6381.conf
更改以下参数
port 6381
pidfile /var/run/redis_6381.pid
logfile "/var/log/redis6381.log"
配置三个从
[root@zyq redis]#: cp 6379.conf 6389.conf
[root@zyq redis]#: cp 6380.conf 6390.conf
[root@zyq redis]#: cp 6381.conf 6391.conf
[root@zyq redis]#: vim 6389.conf
pidfile /var/run/redis_6389.pid
logfile "/var/log/redis6389.log"
replicaof 192.168.227.153 6379 在从上认主（由于使用一台虚拟机来配置，所以要修改端口号）
masterauth hhh123 设置密码
[root@zyq redis]#: vim 6390.conf
pidfile /var/run/redis_6390.pid
logfile "/var/log/redis6390.log"
replicaof 192.168.227.153 6380
[root@zyq redis]#: vim 6391.conf
pidfile /var/run/redis_6390.pid
logfile "/var/log/redis6390.log"
replicaof 192.168.227.153 6381
配置哨兵
[root@zyq ~]#: cd redis-stable/
[root@zyq redis-stable]#: ls
00-RELEASENOTES CONTRIBUTING.md INSTALL README.md runtest-cluster SECURITY.md tests
BUGS COPYING Makefile redis.conf runtest-moduleapi sentinel.conf TLS.md
CODE_OF_CONDUCT.md deps MANIFESTO runtest runtest-sentinel src utils
[root@zyq redis-stable]#: cp sentinel.conf /etc/redis/
[root@zyq redis-stable]#: cd /etc/redis/
[root@zyq redis]#: ls
6379.conf 6380.conf 6381.conf 6389.conf 6390.conf 6391.conf sentinel.conf
[root@zyq redis]#: vi /etc/redis/sentinel.conf
添加以下配置
sentinel monitor mymaster 192.168.227.153 6379 2
sentinel monitor mymaster 192.168.227.153 6380 2
sentinel monitor mymaster 192.168.227.153 6381 2
sentinel monitor myslave 192.168.227.153 6389 2
sentinel monitor myslave 192.168.227.153 6390 2
sentinel monitor myslave 192.168.227.153 6391 2
sentinel auth-pass mymaster1 hhh123
sentinel auth-pass mymaster2 hhh123
sentinel auth-pass mymaster3 hhh123
sentinel auth-pass myslave1 hhh123
sentinel auth-pass myslave2 hhh123
sentinel auth-pass myslave3 hhh123
配置3个哨兵配置文件
更改名字好区分
[root@zyq redis]#: ls
6379.conf 6380.conf 6381.conf 6389.conf 6390.conf 6391.conf sentinel.conf
[root@zyq redis]#: mv sentinel.conf 26380.conf
修改添加
port 26380
.....
pidfile /var/run/redis-sentinel2.pid
......
sentinel down-after-milliseconds mymaster1 30000
sentinel down-after-milliseconds mymaster2 30000
sentinel down-after-milliseconds mymaster3 30000
sentinel down-after-milliseconds myslave1 30000
sentinel down-after-milliseconds myslave2 30000
sentinel down-after-milliseconds myslave3 30000
......
sentinel parallel-syncs mymaster1 1
sentinel parallel-syncs mymaster2 1
sentinel parallel-syncs mymaster3 1
sentinel parallel-syncs myslave1 1
sentinel parallel-syncs myslave2 1
sentinel parallel-syncs myslave3 1
......
sentinel failover-timeout mymaster1 180000
sentinel failover-timeout mymaster2 180000
sentinel failover-timeout mymaster3 180000
sentinel failover-timeout myslave1 180000
sentinel failover-timeout myslave2 180000
sentinel failover-timeout myslave3 180000
......
SENTINEL master-reboot-down-after-period mymaster1 0
SENTINEL master-reboot-down-after-period mymaster2 0
SENTINEL master-reboot-down-after-period mymaster3 0
SENTINEL master-reboot-down-after-period myslave1 0
SENTINEL master-reboot-down-after-period myslave2 0
SENTINEL master-reboot-down-after-period myslave3 0
[root@zyq redis]#: cp 26380.conf 26379.conf
[root@zyq redis]#: vim 26379.conf
port 26379
.....
pidfile /var/run/redis-sentinel1.pid
.....
[root@zyq redis]#: cp 26380.conf 26381.conf
[root@zyq redis]#: vim 26381.conf
port 26381
.....
pidfile /var/run/redis-sentinel3.pid
......
启动并查看哨兵
[root@zyq redis]#: redis-sentinel 26379.conf
[root@zyq redis]#: redis-sentinel 26380.conf
[root@zyq redis]#: redis-sentinel 26381.conf
[root@zyq redis]#: ps -ef|grep redis
root 8115 1467 0 21:23 pts/0 00:00:00 /usr/bin/vim /etc/redis/sentinel.conf
root 8141 1 0 21:43 ? 00:00:00 redis-sentinel *:26379 [sentinel]
root 8150 1 0 21:43 ? 00:00:00 redis-sentinel *:26380 [sentinel]
root 8156 1 0 21:43 ? 00:00:00 redis-sentinel *:26381 [sentinel]
root 8162 7881 0 21:43 pts/1 00:00:00 grep --color=auto redis
启动主从
[root@zyq redis]#: redis-server 6379.conf
[root@zyq redis]#: redis-server 6380.conf
[root@zyq redis]#: redis-server 6381.conf
[root@zyq redis]#: redis-server 6389.conf
[root@zyq redis]#: redis-server 6390.conf
[root@zyq redis]#: redis-server 6391.conf
[root@zyq redis]#: ps -ef|grep redis
root 8115 1467 0 21:23 pts/0 00:00:00 /usr/bin/vim /etc/redis/sentinel.conf
root 8141 1 0 21:43 ? 00:00:00 redis-sentinel *:26379 [sentinel]
root 8150 1 0 21:43 ? 00:00:00 redis-sentinel *:26380 [sentinel]
root 8156 1 0 21:43 ? 00:00:00 redis-sentinel *:26381 [sentinel]
root 8202 1 0 21:47 ? 00:00:00 redis-server 192.168.227.153:6379
root 8211 1 0 21:47 ? 00:00:00 redis-server 192.168.227.153:6380
root 8217 1 0 21:47 ? 00:00:00 redis-server 192.168.227.153:6381
root 8223 1 0 21:47 ? 00:00:00 redis-server 192.168.227.153:6389
root 8229 1 0 21:47 ? 00:00:00 redis-server 192.168.227.153:6390
root 8237 1 0 21:47 ? 00:00:00 redis-server 192.168.227.153:6391
root 8246 7881 0 21:47 pts/1 00:00:00 grep --color=auto redis
这时是3个哨兵监控3个主和从在sentinel集群环境下需要多个sentinel互相沟通来确认某个master是否真的死了，quorum这个参数是进行客观下线的一个依据，意思是至少有quorum个sentinel认为这个master有故障，才会对这个master进行下线以及故障转移。因为有的时候，某个sentinel节点可能因为自身网络原因，导致无法连接master，而此时master并没有出现故障，所以，这就需要多个sentinel都一致认为该master有问题，才可以进行下一步操作，这就保证了公平性和高可用。
Cluster模式
主从模式或哨兵模式每个节点存储的数据都是全量的数据，数据量过大时，就需要对存储的数据进行分片后存储到多个redis实例上。此时就要用到Redis Sharding技术。
redis在3.0上加入了 Cluster 集群模式，实现了 Redis 的分布式存储，也就是说每台 Redis 节点上存储不同的数据。cluster模式为了解决单机Redis容量有限的问题，将数据按一定的规则分配到多台机器，内存/QPS不受限于单机，可受益于分布式集群高扩展性。
Redis Cluster是一种服务器Sharding技术(分片和路由都是在服务端实现)，采用多主多从，每一个分区都是由一个Redis主机和多个从机组成，片区和片区之间是相互平行的。Redis Cluster集群采用了P2P的模式，完全去中心化
powershell
[root@zyq ~]#: ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 128 [::]:22 [::]:*
[root@zyq ~]#: cd /etc/redis/
[root@zyq redis]#: ls
6379.conf 6380.conf 6381.conf 6389.conf 6390.conf 6391.conf
[root@zyq redis]#: vim /usr/bin/redis-daemon
[root@zyq redis]#: cat /usr/bin/redis-daemon
#!/bin/bash
/usr/local/bin/redis-server /etc/redis/6379.conf
/usr/local/bin/redis-server /etc/redis/6380.conf
/usr/local/bin/redis-server /etc/redis/6381.conf
/usr/local/bin/redis-server /etc/redis/6389.conf
/usr/local/bin/redis-server /etc/redis/6390.conf
/usr/local/bin/redis-server /etc/redis/6391.conf
[root@zyq redis]#: chmod +x /usr/bin/redis-daemon
[root@zyq redis]#: ll /usr/bin/redis-daemon
-rwxr-xr-x 1 root root 307 Jan 2 15:35 /usr/bin/redis-daemon
[root@zyq redis]#: ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 511 192.168.227.153:6379 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6380 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6381 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6389 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6390 0.0.0.0:*
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 511 192.168.227.153:6391 0.0.0.0:*
LISTEN 0 128 [::]:22 [::]:*
设置开机自启
[root@zyq redis]#: cp /usr/lib/systemd/system/sshd.service /usr/lib/systemd/system/redis.service
[root@zyq redis]#: vim /usr/lib/systemd/system/redis.service
[root@zyq redis]#: cat /usr/lib/systemd/system/redis.service
[Unit]
Description=redis replication server daemon
After=network.target
[Service]
Type=forking
ExecStart=/usr/bin/redis-daemon
ExecStop=/usr/bin/pkill redis
ExecReload=/bin/kill -HUP $MAINPID
[Install]
WantedBy=multi-user.target
[root@zyq redis]#: systemctl daemon-reload
[root@zyq redis]#: systemctl enable --now redis.service
Created symlink /etc/systemd/system/multi-user.target.wants/redis.service → /usr/lib/systemd/system/redis.service.
[root@zyq ~]#: cd redis-stable
[root@zyq redis-stable]#: ls
00-RELEASENOTES CONTRIBUTING.md INSTALL README.md runtest-cluster SECURITY.md tests
BUGS COPYING Makefile redis.conf runtest-moduleapi sentinel.conf TLS.md
CODE_OF_CONDUCT.md deps MANIFESTO runtest runtest-sentinel src utils
[root@zyq redis-stable]#: cp redis.conf /etc/redis/
[root@zyq redis]#: mv redis.conf 6379.修改配置文件
[root@zyq redis]#: vim 6379.conf
取消注释
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
appendonly yes no改为yes
daemonize yes no改为yes
logfile "/var/log/redis6379.log"
[root@zyq redis]#: cp 6379.conf 6380.conf
[root@zyq redis]#: cp 6379.conf 6381.conf
[root@zyq redis]#: cp 6379.conf 6389.conf
[root@zyq redis]#: cp 6379.conf 6390.conf
[root@zyq redis]#: cp 6379.conf 6391.conf
[root@zyq redis]#: sed -i 's/6379/6380/g' 6380.conf
[root@zyq redis]#: sed -i 's/6379/6381/g' 6381.conf
[root@zyq redis]#: sed -i 's/6379/6389/g' 6389.conf
[root@zyq redis]#: sed -i 's/6379/6390/g' 6390.conf
[root@zyq redis]#: sed -i 's/6379/6391/g' 6391.conf
重启redis服务
[root@zyq redis]#: systemctl daemon-reload
[root@zyq redis]#: systemctl restart redis.service
启动cluster模式
[root@zyq redis-stable]#: redis-cli --cluster create 127.0.0.1:6379 127.0.0.1:6380 127.0.0.1:6381 127.0.0.1:6389 127.0.0.1:6390 127.0.0.1:6391 --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 127.0.0.1:6390 to 127.0.0.1:6379
Adding replica 127.0.0.1:6391 to 127.0.0.1:6380
Adding replica 127.0.0.1:6389 to 127.0.0.1:6381
>>> Trying to optimize slaves allocation for anti-affinity
[WARNING] Some slaves are in the same host as their master
M: 80daef8a00d8d95d123d807f8ea21ccb9f188cb7 127.0.0.1:6379
slots:[0-5460] (5461 slots) master
M: 3ec104631e7087b99b25311d40935deb6a9c163a 127.0.0.1:6380
slots:[5461-10922] (5462 slots) master
M: 96a64c539a0b801746cb1f8f6426c085786e5485 127.0.0.1:6381
slots:[10923-16383] (5461 slots) master
S: a4f77673a5f853a393272af74f3408dccca626e2 127.0.0.1:6389
replicates 96a64c539a0b801746cb1f8f6426c085786e5485
S: de7f8a76c211788fbe5f4f1c44e3d4fb83c742dd 127.0.0.1:6390
replicates 80daef8a00d8d95d123d807f8ea21ccb9f188cb7
S: c1cef4cdee9cd641825793b39ede45d33faa3f22 127.0.0.1:6391
replicates 3ec104631e7087b99b25311d40935deb6a9c163a
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 127.0.0.1:6379)
M: 80daef8a00d8d95d123d807f8ea21ccb9f188cb7 127.0.0.1:6379
slots:[0-5460] (5461 slots) master
1 additional replica(s)
S: de7f8a76c211788fbe5f4f1c44e3d4fb83c742dd 127.0.0.1:6390
slots: (0 slots) slave
replicates 80daef8a00d8d95d123d807f8ea21ccb9f188cb7
S: c1cef4cdee9cd641825793b39ede45d33faa3f22 127.0.0.1:6391
slots: (0 slots) slave
replicates 3ec104631e7087b99b25311d40935deb6a9c163a
M: 96a64c539a0b801746cb1f8f6426c085786e5485 127.0.0.1:6381
slots:[10923-16383] (5461 slots) master
1 additional replica(s)
M: 3ec104631e7087b99b25311d40935deb6a9c163a 127.0.0.1:6380
slots:[5461-10922] (5462 slots) master
1 additional replica(s)
S: a4f77673a5f853a393272af74f3408dccca626e2 127.0.0.1:6389
slots: (0 slots) slave
replicates 96a64c539a0b801746cb1f8f6426c085786e5485
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
测试主从效果
[root@zyq ~]#: redis-cli -h 127.0.0.1 -p 6379
127.0.0.1:6379> set age 20
OK
[root@zyq ~]#: redis-cli -h 127.0.0.1 -p 6390
127.0.0.1:6390> keys *
1) "age"
[root@zyq ~]#: yum -y install ruby
[root@zyq ~]#: vim example.rb
[root@zyq ~]#: cat example.rb
require './cluster'
if ARGV.length != 2
startup_nodes = [
{:host => "127.0.0.1", :port => 6379},
{:host => "127.0.0.1", :port => 6380}
]
else
startup_nodes = [
{:host => ARGV[0], :port => ARGV[1].to_i}
]
end
rc = RedisCluster.new(startup_nodes,32,:timeout => 0.1)
last = false
while not last
begin
last = rc.get("__last__")
last = 0 if !last
rescue => e
puts "error #{e.to_s}"
sleep 1
end
end
((last.to_i+1)..1000000000).each{|x|
begin
rc.set("foo#{x}",x)
puts rc.get("foo#{x}")
rc.set("__last__",x)
rescue => e
puts "error #{e.to_s}"
end
sleep 0.1
}
测试集群模式效果（要加上'-c'）可修改不同节点的事务且不会重复
[root@zyq ~]#: redis-cli -h 127.0.0.1 -p 6379 -c
127.0.0.1:6379> keys *
1) "age"
[root@zyq ~]#: redis-cli -h 127.0.0.1 -p 6380 -c
127.0.0.1:6380> get age
-> Redirected to slot [741] located at 127.0.0.1:6379
"20"