Redis3.2.8集群搭建
采用官方推薦的三主三從分片方案，本例中所有節點部署在一台主機上。
軟件安裝:
tar zxvf redis-3.2.8.tar.gz
cd redis-3.2.8
make
make install
mkdir redis-cluster
根據端口號，創建六個節點
mkdir redis-cluser/6379、6380、6381、6382、6383、6384
拷貝配置文件到各個節點:
cp redis.conf redis-cluser/6379、6380、6381、6382、6383、6384
修改配置文件:
vim redis-cluser/6379、6380、6381、6382、6383、6384/redis.conf
port ＃端口號
pidfile ＃pid文件
logfile "/data/local/redis-cluster/6379/redis.log" #日志文件
cluster-enabled yes ＃開啟集群模式
cluster-config-file nodes-6380.conf
若需要遠程連接，需要注釋掉bind 127.0.0.1 改為 bind 0.0.0.0
啟動:redis-server 6379、6380、81、82、83、84/redis.conf
安裝redis-trib.rb工具:
安裝依賴組件:yum install ruby ruby-devel rubygems rpm-build
gem install redis
# redis-trib.rb create --replicas 1 127.0.0.1:6379 127.0.0.1:6380 127.0.0.1:6381 127.0.0.1:6382 127.0.0.1:6383 127.0.0.1:6384
創建集群，每個節點有一個從節點
>>> Creating cluster >>> Performing hash slots allocation on 6 nodes... Using 3 masters: 127.0.0.1:6379 127.0.0.1:6380 127.0.0.1:6381 Adding replica 127.0.0.1:6382 to 127.0.0.1:6379 Adding replica 127.0.0.1:6383 to 127.0.0.1:6380 Adding replica 127.0.0.1:6384 to 127.0.0.1:6381 M: 46af51f0d193f3e76b322537bc11f9570ca13930 127.0.0.1:6379 slots:0-5460 (5461 slots) master M: 3caa86acc90199cd882475dc08622fdd522cf9a8 127.0.0.1:6380 slots:5461-10922 (5462 slots) master M: 01152da2da00e48384714c609241d2f83ca7bdc9 127.0.0.1:6381 slots:10923-16383 (5461 slots) master S: 825f0c904c8337d6eb8b5685e9b46fe36f7e9e99 127.0.0.1:6382 replicates 46af51f0d193f3e76b322537bc11f9570ca13930 S: 0c01889b111948f334950e84aea677658d91f1bc 127.0.0.1:6383 replicates 3caa86acc90199cd882475dc08622fdd522cf9a8 S: 567f1760b13de130a63396cc4e6983af5f6bca24 127.0.0.1:6384 replicates 01152da2da00e48384714c609241d2f83ca7bdc9 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: 46af51f0d193f3e76b322537bc11f9570ca13930 127.0.0.1:6379 slots:0-5460 (5461 slots) master 1 additional replica(s) S: 0c01889b111948f334950e84aea677658d91f1bc 127.0.0.1:6383 slots: (0 slots) slave replicates 3caa86acc90199cd882475dc08622fdd522cf9a8 S: 825f0c904c8337d6eb8b5685e9b46fe36f7e9e99 127.0.0.1:6382 slots: (0 slots) slave replicates 46af51f0d193f3e76b322537bc11f9570ca13930 S: 567f1760b13de130a63396cc4e6983af5f6bca24 127.0.0.1:6384 slots: (0 slots) slave replicates 01152da2da00e48384714c609241d2f83ca7bdc9 M: 3caa86acc90199cd882475dc08622fdd522cf9a8 127.0.0.1:6380 slots:5461-10922 (5462 slots) master 1 additional replica(s) M: 01152da2da00e48384714c609241d2f83ca7bdc9 127.0.0.1:6381 slots:10923-16383 (5461 slots) master 1 additional replica(s) [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered.
注:使用redis-trib.rb create --replicas 1 這種方式創建主從集群的前提是，至少有6個節點，3主3從
sentinel
sentinel.conf:
注釋默認相關配置，添加master監控:
sentinel monitor master1 127.0.0.1 6379 2 sentinel down-after-milliseconds master1 60000 sentinel failover-timeout master1 180000 sentinel parallel-syncs master1 1 sentinel monitor master2 127.0.0.1 6380 2 sentinel down-after-milliseconds master2 60000 sentinel failover-timeout master2 180000 sentinel parallel-syncs master2 1 sentinel monitor master3 127.0.0.1 6381 2 sentinel down-after-milliseconds master3 60000 sentinel failover-timeout master3 180000 sentinel parallel-syncs master3 1
＃redis-server sentinel.conf --sentinel &
98310:X 21 Apr 09:50:47.694 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128. 98310:X 21 Apr 09:50:47.695 # Sentinel ID is 5c014c848accbbec31b53187b9434356f27ad074 98310:X 21 Apr 09:50:47.695 # +monitor master master2 127.0.0.1 6380 quorum 2 98310:X 21 Apr 09:50:47.695 # +monitor master master3 127.0.0.1 6381 quorum 2 98310:X 21 Apr 09:50:47.695 # +monitor master master1 127.0.0.1 6379 quorum 2
配置后台啟動:
sentinel.conf，添加:
daemonize yes
啟動:
#redis-server sentinel.conf --sentinel
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Redis 3.2 1主1從配置:
主:
cluster-enabled no
logfile /data/local/redis-cluster/6379/redis.log
requirepass password
從:
cluster-enabled no
logfile /data/local/redis-cluster/6380/redis.log
requirepass password
slaveof 127.0.0.1 6379
masterauth password 必須要注定同步master時的認證密碼，否則同步失敗。
啟動redis，查看主從狀態:
#redis-cli -p 6380 >auth password >info ... # Replication role:slave master_host:127.0.0.1 master_port:6379 master_link_status:up ...