一.借用網(wǎng)上codis架構(gòu)圖（https://github.com/CodisLabs/codis）

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各組件作用說明

1.codis-proxy 相當(dāng)于redis媚朦，是底層codis-server集群代理氧敢、

2.codis-group 是一個(gè)虛擬的節(jié)點(diǎn)機(jī)制通過槽位映射機(jī)制實(shí)現(xiàn)proxy與server的映射（一個(gè)組有一個(gè)master和多個(gè)slave組成，默認(rèn)1024個(gè)槽位询张，redis cluster默認(rèn)16384個(gè)槽位孙乖，不同的槽位內(nèi)容放在不同group,通過zk查詢key記錄位置）

3.codis-fe 集群管理界面

4.codis-dashboard 集群管理中心

二. 環(huán)境搭建配置

系統(tǒng)centos7.1 64位系統(tǒng)

環(huán)境包

jdk1.8.0.91

go1.7.3 https://storage.googleapis.com/golang/go1.7.3.linux-amd64.tar.gz

zookeeper3.4.6 http://mirrors.shuosc.org/apache/zookeeper/zookeeper-3.4.10/zookeeper-3.4.10.tar.gz

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zk集群簡要配置（需要安裝jdk--步驟略）

[root@codis01 ~]# sed '/^$/ d;/^#/ d' /usr/local/zookeeper/conf/zk1.cfg

tickTime=2000

initLimit=10

syncLimit=5

dataDir=/usr/local/zookeeper/data

clientPort=2181

server.1=192.168.10.5:2888:3888

server.2=192.168.10.6:2888:3888

server.3=192.168.10.7:2888:3888

echo 1 > /usr/local/zookeeper/data/myid

codis02 上操作類似 echo 2 > /usr/local/zookeeper/data/myid

codis03 上操作類似 echo 3 > /usr/local/zookeeper/data/myid

啟動(dòng)zk集群，檢測zk狀態(tài)是否正常

go環(huán)境編譯安裝

[root@codis01 ~]# tar zxvf go1.7.3.linux-amd64.tar.gz

[root@codis01 ~]# mv go /usr/local

[root@codis01 ~]# mkdir /usr/local/codis

配置環(huán)境變量 vi /etc/profile

export PATH=$PATH:/usr/local/go/bin

export GOROOT=/usr/local/go

export GOPATH=/usr/local/codis

path=$PATH:$HOME/bin:$GOROOT/bin:$GOPATH/bin

source /etc/profile

驗(yàn)證是否生效

[root@codis01 ~]# go version

go version go1.7.3 linux/amd64

[root@codis01 ~]# echo $GOPATH

/usr/local/codis

codis安裝

mkdir -p $GOPATH/src/github.com/CodisLabs************************此目錄不能為別的名

[root@codis01 ~]# cd /usr/local/codis/src/github.com/CodisLabs/

[root@codis01 ~]# git clone https://github.com/CodisLabs/codis.git -b release3.2

進(jìn)行編譯 cd /usr/local/codis/src/github.com/CodisLabs/codis

make ---------執(zhí)行全部指令后，會(huì)在 bin 文件夾內(nèi)生成 codis-proxy唯袄、codis-server三個(gè)可執(zhí)行文件

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修改配置信息

啟動(dòng)方式有兩種

[root@codis01 codis]# sed '/^#/ d;/^$/ d' config/dashboard.toml (修改了紅字信息)

coordinator_name = "zookeeper"

coordinator_addr = "192.168.10.5:2181,192.168.10.6:2181,192.168.10.7:2181"

product_name = "codis-protal"

product_auth = ""

admin_addr = "0.0.0.0:18080"

migration_method = "semi-async"

migration_parallel_slots = 100

migration_async_maxbulks = 200

migration_async_maxbytes = "32mb"

migration_async_numkeys = 500

migration_timeout = "30s"

sentinel_client_timeout = "10s"

sentinel_quorum = 2

sentinel_parallel_syncs = 1

sentinel_down_after = "30s"

sentinel_failover_timeout = "5m"

sentinel_notification_script = ""

sentinel_client_reconfig_script = ""

[root@codis01 codis]# sed '/^#/ d;/^$/ d' config/proxy.toml （修改了紅字信息）

product_name = "codis-protal"

product_auth = ""

session_auth = ""

admin_addr = "0.0.0.0:11080"

proto_type = "tcp4"

proxy_addr = "0.0.0.0:19000"

jodis_name = "zookeeper"

jodis_addr = "192.168.10.5:2181,192.168.10.6:2181,192.168.10.7:2181"

jodis_auth = ""

jodis_timeout = "20s"

jodis_compatible = true

新建4個(gè)codis-server節(jié)點(diǎn)（redis配置修改紅字部分）

[root@codis01 opt]# sed '/^#/ d;/^$/ d' /opt/redis-6379/redis.conf

protected-mode no

port 6379

tcp-backlog 511

timeout 0

tcp-keepalive 300

daemonize yes

supervised no

pidfile "/opt/redis-6379/redis_6379.pid"

loglevel notice

logfile "/opt/redis-6379/redis_6379.log"

databases 16

save 900 1

save 300 10

save 60 10000

stop-writes-on-bgsave-error yes

rdbcompression yes

rdbchecksum yes

dbfilename "dump_6379.rdb"

dir "/opt/redis-6379"

slave-serve-stale-data yes

slave-read-only yes

repl-diskless-sync no

repl-diskless-sync-delay 5

repl-disable-tcp-nodelay no

slave-priority 100

服務(wù)啟動(dòng)【自帶腳本方式】

cd $GOPATH/src/github.com/CodisLabs/codis/admin

./admin/codis-dashboard-admin.sh start 啟動(dòng)CODIS-DASHBOARD 外部存儲(chǔ)

./admin/codis-proxy-admin.sh start 啟動(dòng)CODIS-PROXY 并加入CODIS-DASHBOARD管理

./admin/codis-server-admin.sh start 啟動(dòng)CODIS-SERVER

./admin/codis-fe-admin.sh start 啟動(dòng)CODIS-FE弯屈，可以通過127.0.0.1:9090訪問管理界面

【手動(dòng)運(yùn)行命令后臺(tái)運(yùn)行】

./bin/codis-dashboard --ncpu=1 --config=config/dashboard.toml --log=dashboard.log --log-level=WARN &

./bin/codis-proxy --ncpu=1 --config=config/proxy.toml --log=proxy.log --log-level=WARN &

./bin/codis-fe --ncpu=1 --log=fe.log --log-level=WARN --zookeeper=192.168.10.5:2181 --listen=192.168.10.5:8090 & --管理頁面端口

./bin/codis-server /opt/redis-6379/redis.conf

./bin/codis-server /opt/redis-6380/redis.conf

./bin/codis-server /opt/redis-6381/redis.conf

./bin/codis-server /opt/redis-6382/redis.conf

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三.通過fe管理頁面管理codis機(jī)器

瀏覽器訪問http://192.168.10.5:8090進(jìn)入管理頁面

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添加proxy代理

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先添加4個(gè)分組，每個(gè)256個(gè)槽位恋拷，然后把codis-server加入到分組资厉，組成一組兩從

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測試codis集群功能。停掉192.168.10.5:19000 這個(gè)proxy節(jié)點(diǎn)蔬顾。檢測工作是否正常

tag: 在10.5的節(jié)點(diǎn)上寫入key,停掉10.5工作節(jié)點(diǎn)宴偿，在10.6上查詢key

[root@codis01 codis]# ./bin/redis-cli -h 192.168.10.5 -p 19000

192.168.10.5:19000> set fctee hello-world

OK

[root@codis02 codis]# ./bin/redis-cli -h 192.168.10.6 -p 19000

192.168.10.6:19000> get fctee

"hello-world"

結(jié)果工作正常

tag:測試redis-key值寫入，分配均衡

!/bin/bash

for ((i=0;i<20000;i++))

do

echo -en "helloworld" | redis-cli -h 192.168.10.5 -p 19000 -x set name$i >>redis.log

done

------------參考鏈接

http://www.cnblogs.com/reblue520/p/6874925.html

http://blog.csdn.net/liaoyoujinb/article/details/70800860