redis-5.0.5 集群部署

之前写过一套基于redis-4.0.6版本的测试集群部署

https://www.cnblogs.com/mrice/p/10730309.html

最近生产环境需要部署一套redis-5.0.5版本集群；

环境:

服务器：6台

操作系统:Red Hat Enterprise Linux Server release 7.4

redis:redis-5.0.5

ruby:ruby-2.0.0 (redis-3.3.5.gem)

一、基础安装

1、安装好ruby

2、安装redis-3.3.5.gem

gem install redis-3.3.5.gem

3、修改系统变量

echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo "vm.overcommit_memory = 1" >> /etc/sysctl.conf
echo  > /proc/sys/net/core/somaxconn
sysctl -p

二、redis安装

1、安装redis

压缩安装包后

make && make install

2、配置redis

从安装文件中复制一份redis.conf,下面是配置文件内容,红色字体大家需要注意一下。

bind 10.20.1.56  //修改绑定地址
protected-mode yes
port 6379   //可修改自己规则端口,但集群状态下需要注意,集群使用端口会在此端口上增加10000，所以redis自身端口+10000不能超过65535。
tcp-backlog
timeout
tcp-keepalive
daemonize yes
supervised no
pidfile /mrice/redis-cluster/redis-6379/redis_6379.pid  //pid存放位置
loglevel notice
logfile "/mrice/redis-cluster/redis-6379/logs/redis_6379.log"
databases
always-show-logo yes
save
save
save
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir "/mrice/redis-cluster/redis-6379/data"  //数据存放目录
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay
repl-disable-tcp-nodelay no
replica-priority
requirepass mrice   //增加认证
masterauth mrice   //主从复制时认证密码
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit
cluster-enabled yes //开启集群功能
cluster-config-file /mrice/redis-cluster/redis-6379/logs/nodes.conf  //集群状态
slowlog-log-slower-than
slowlog-max-len
latency-monitor-threshold
notify-keyspace-events ""
hash-max-ziplist-entries
hash-max-ziplist-value
list-max-ziplist-size -
list-compress-depth
set-max-intset-entries
zset-max-ziplist-entries
zset-max-ziplist-value
hll-sparse-max-bytes
stream-node-max-bytes
stream-node-max-entries
activerehashing yes
client-output-buffer-limit normal
client-output-buffer-limit replica 256mb 64mb
client-output-buffer-limit pubsub 32mb 8mb
hz
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes

3、配置文件修改完后，启动redis服务

redis-server redis.conf

4、建立集群

这里注意的是以之前版本不同的是,通过redis-cli 来完成。

redis-cli --cluster create 10.20.1.51: 10.20.1.52: 10.20.1.53: 10.20.1.54: 10.20.1.55: 10.20.1.56: --cluster-replicas  -a mrice

Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
>>> Performing hash slots allocation on  nodes...
Master[] -> Slots  -
Master[] -> Slots  -
Master[] -> Slots  -
Adding replica 10.20.1.55: to 10.20.1.51:
Adding replica 10.20.1.56: to 10.20.1.52:
Adding replica 10.20.1.54: to 10.20.1.53:
M: 9cd49f7033ab577919a645bc0b8fed7e14084e02 10.20.1.51:
   slots:[-] ( slots) master
M: 2ecfdb47842b341c7dd91d3d5a807787c1790ca2 10.20.1.52:
   slots:[-] ( slots) master
M: 6efe5181ae476ae33274b81c8f2f877444381795 10.20.1.53:
   slots:[-] ( slots) master
S: 9f3fce417fbe0febe818e1b67a1b402c3b831b61 10.20.1.54:
   replicates 6efe5181ae476ae33274b81c8f2f877444381795
S: c13ffcdc2960bd59471eb050c2e8bfdf0a8e36e8 10.20.1.55:
   replicates 9cd49f7033ab577919a645bc0b8fed7e14084e02
S: 05a2efa665ee97246591a42836ed62e807b3f240 10.20.1.56:
   replicates 2ecfdb47842b341c7dd91d3d5a807787c1790ca2
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 10.20.1.51:)
M: 9cd49f7033ab577919a645bc0b8fed7e14084e02 10.20.1.51:
   slots:[-] ( slots) master
    additional replica(s)
S: 05a2efa665ee97246591a42836ed62e807b3f240 10.20.1.56:
   slots: ( slots) slave
   replicates 2ecfdb47842b341c7dd91d3d5a807787c1790ca2
M: 6efe5181ae476ae33274b81c8f2f877444381795 10.20.1.53:
   slots:[-] ( slots) master
    additional replica(s)
M: 2ecfdb47842b341c7dd91d3d5a807787c1790ca2 10.20.1.52:
   slots:[-] ( slots) master
    additional replica(s)
S: c13ffcdc2960bd59471eb050c2e8bfdf0a8e36e8 10.20.1.55:
   slots: ( slots) slave
   replicates 9cd49f7033ab577919a645bc0b8fed7e14084e02
S: 9f3fce417fbe0febe818e1b67a1b402c3b831b61 10.20.1.54:
   slots: ( slots) slave
   replicates 6efe5181ae476ae33274b81c8f2f877444381795
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All  slots covered.
[root@EOMS-daiwei3-OSS logs]# 

5、验证

redis-cli -p 6379 -h 10.20.1.56 -a mrice

10.20.1.56:> INFO cluster
# Cluster
cluster_enabled:
10.20.1.56:> CLUSTER INFO
cluster_state:ok
cluster_slots_assigned:
cluster_slots_ok:
cluster_slots_pfail:
cluster_slots_fail:
cluster_known_nodes:
cluster_size:
cluster_current_epoch:
cluster_my_epoch:
cluster_stats_messages_ping_sent:
cluster_stats_messages_pong_sent:
cluster_stats_messages_sent:
cluster_stats_messages_ping_received:
cluster_stats_messages_pong_received:
cluster_stats_messages_fail_received:
cluster_stats_messages_received:
10.20.1.56:> CLUSTER SLOTS
) ) (integer)
   ) (integer)
   ) ) "10.20.1.53"
      ) (integer)
      ) "6efe5181ae476ae33274b81c8f2f877444381795"
   ) ) "10.20.1.54"
      ) (integer)
      ) "9f3fce417fbe0febe818e1b67a1b402c3b831b61"
) ) (integer)
   ) (integer)
   ) ) "10.20.1.51"
      ) (integer)
      ) "9cd49f7033ab577919a645bc0b8fed7e14084e02"
   ) ) "10.20.1.55"
      ) (integer)
      ) "c13ffcdc2960bd59471eb050c2e8bfdf0a8e36e8"
) ) (integer)
   ) (integer)
   ) ) "10.20.1.52"
      ) (integer)
      ) "2ecfdb47842b341c7dd91d3d5a807787c1790ca2"
   ) ) "10.20.1.56"
      ) (integer)
      ) "05a2efa665ee97246591a42836ed62e807b3f240"