redis集群的搭建

########環境#########
centos 7.2 , 
gcch 環境
ruby 2.0.0
redis 3.2.8 
redis-3.3.3gem

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公司要求搭建redis集群, 本來覺得挺好搞的,沒想到弄到現在....

1, 環境準備

gcc , ruby 等環境準備

yum -y install gcc?ruby ruby-devel rubygems rpm-build zlib

redis-ruby接口安裝, 我直接yum安裝的,

gem install redis

你也可以下載 redis.3.3.3.gem 然后執行命令

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gem install redis-3.3.3.gem

2, 再說下單機redis的搭建方法

1, 下載redis 3.2.8 的安裝包:?

wget http://download.redis.io/releases/redis-3.2.8.tar.gz

2, 解壓

tar -zxvf redis-3.2.8

3, 進入解壓目錄下

make

然后安裝

make install PREFIX=/opt/wenbronk_soft/redis/redis1

安裝完成后, 可在redis1 目錄下看到一個bin目錄, 對, 就是他了.

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4, 此時已經可以訪問了, 但需要更改下配置文件, 才可以使用外部ip訪問

redis.conf 在redis的解壓目錄下

cp /opt/wenbronk_soft/redis/redis-3.2.8/redis.conf /opt/wenbronk_soft/redis/redis1/bin

vim?

bind 192.168.xx.202       (當前主機的ip)

5, 啟動

./redis-server ./redis.conf

現在已經可以通過本地的 ./redis-cli -h localhost -p 6379 或者通過外部ip進行訪問了.

3, 接下來是集群的安裝

安裝集群之前, 首先要保證單個的redis是空的, 也就是沒有dump.rb文件沒有密碼設置, 就是 redis.conf中 masterauth        masterauth         沒有設置

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這兒搭建一個臺機器上的偽集群, 分布式集群搭建和這個類似, 只是使用ruby創建集群時ip:port有所區別

注意: ? ? 至少需要 3 ?master+ 2 ?slave, 官方建議是 3 + 3 , 這兒使用 3 ?mater + 3 slave

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1, 修改 redis.conf

添加守護進程: daemonize

port  7000                                        //端口7000,7001,7002,7003,7004,7005,7005
bind 本機ip                                       //默認ip為127.0.0.1 需要改為其他節點機器可訪問的ip 否則創建集群時無法訪問對應的端口，無法創建集群
daemonize    yes                               //redis后臺運行, 
# pidfile  /var/run/redis_7000.pid          //pidfile文件對應7000,7001,7002
cluster-enabled  yes                           //開啟集群  把注釋#去掉
cluster-config-file  nodes_7000.conf   //集群的配置  配置文件首次啟動自動生成 7000,7001,7002
cluster-node-timeout  15000                //請求超時  默認15秒，可自行設置
appendonly  yes                           //aof日志開啟  有需要就開啟，它會每次寫操作都記錄一條日志　

2, 復制解壓目錄下的 ?redis-trib.rb 到 安裝 目錄下 (/opt/wenbronk_soft/redis/redis/bin)?

cp /opt/wenbronk_soft/redis/redis-3.2.8/src/redis-trib.rb /opt/wenbronk_soft/redis/redis/bin

此時bin下目錄結構為:?

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3, 復制bin為另外6個實例

4, 進入到每個目錄下更改 port設置

從 7000 - 7005

5, 使用啟動腳本啟動6個實例

cd bin
./redis-server ./redis.conf
cd ..
cd bin1
./redis-server ./redis.conf
cd ..
cd bin2
./redis-server ./redis.conf
cd ..
cd bin3
./redis-server ./redis.conf
cd ..
cd bin4
./redis-server ./redis.conf
cd ..
cd bin5
./redis-server ./redis.conf
cd ..

修改腳本權限

chmod u+x start.sh

6, 查看redis實例額運行狀態

ps -ef | grep redis

netstat -tnlp | grep redis

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?7, 創建集群?

./redis-trib.rb  create  --replicas  1 192.168.50.202:7000 192.168.50.202:7001 192.168.50.202:7002 192.168.50.202:7003 192.168.50.202:7004 192.168.50.202:7005

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[wenbronk@localhost bin]$ ./redis-trib.rb  create  --replicas  1 192.168.50.202:7000 192.168.50.202:7001 192
.168.50.202:7002 192.168.50.202:7003 192.168.50.202:7004 192.168.50.202:7005>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.50.202:7000
192.168.50.202:7001
192.168.50.202:7002
Adding replica 192.168.50.202:7003 to 192.168.50.202:7000
Adding replica 192.168.50.202:7004 to 192.168.50.202:7001
Adding replica 192.168.50.202:7005 to 192.168.50.202:7002
M: b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8 192.168.50.202:7000slots:0-5460 (5461 slots) master
M: 048291cbc8e9ccf81de57f02150447340d310fe0 192.168.50.202:7001slots:5461-10922 (5462 slots) master
M: 740557eca4a8fa31d67fe6a7f6b34814f3f96094 192.168.50.202:7002slots:10923-16383 (5461 slots) master
S: 63a9d243b8da03169dee24ec9403e50f36ab7cb0 192.168.50.202:7003replicates b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8
S: 824b5d23e012cd7082701e3737ce8ea21eb8abe3 192.168.50.202:7004replicates 048291cbc8e9ccf81de57f02150447340d310fe0
S: f00948f8f9df4c10cba340cab3f0767d98f00b77 192.168.50.202:7005replicates 740557eca4a8fa31d67fe6a7f6b34814f3f96094
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 192.168.50.202:7000)
M: b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8 192.168.50.202:7000slots:0-5460 (5461 slots) master1 additional replica(s)
M: 740557eca4a8fa31d67fe6a7f6b34814f3f96094 192.168.50.202:7002slots:10923-16383 (5461 slots) master1 additional replica(s)
S: 824b5d23e012cd7082701e3737ce8ea21eb8abe3 192.168.50.202:7004slots: (0 slots) slavereplicates 048291cbc8e9ccf81de57f02150447340d310fe0
S: f00948f8f9df4c10cba340cab3f0767d98f00b77 192.168.50.202:7005slots: (0 slots) slavereplicates 740557eca4a8fa31d67fe6a7f6b34814f3f96094
M: 048291cbc8e9ccf81de57f02150447340d310fe0 192.168.50.202:7001slots:5461-10922 (5462 slots) master1 additional replica(s)
S: 63a9d243b8da03169dee24ec9403e50f36ab7cb0 192.168.50.202:7003slots: (0 slots) slavereplicates b06c9670ad6e16cf41c9eeefb8260ad29dbb52e8
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

ok, 集群搭建完成

?深坑, redis 集群之間的通訊端口為basePort + 1w

4 鏈接集群

1, redis客戶端連接

?-c 連接集群

-p 如果bind 綁定的是本機地址, 那么必須加

./redis-cli -h 192.168.50.202 -p 7006 -c

2, 簡單測試

set abc 1234
get abc

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3, java連接

Jedis Cluster 會自動去發現集群中的節點，所以JedisClusterNodes只需要 add一個實例

ps -ef | grep redis | awk '{print $2}' | xargs kill -9

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明天單獨寫吧.. 東西很多..

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原創地址, http://www.cnblogs.com/wenbronk/p/6864390.html? 轉載請注明出處, 謝謝