Dubbo

当当配置中心

1.把config-web.war复制到tomcat/webapp目录下

2.在shell下执行

python -c "import hashlib;print hashlib.sha1('cloudcc@2017').hexdigest();"

a66cf76edd9b6bc6179cad7c528dec3ceaf001cc

3.在zk的bin目录下执行

./zkCli.sh -server localhost:2181

[zk: localhost:2181(CONNECTED) 0] set /cloudcc 1

Node does not exist: /cloudcc

[zk: localhost:2181(CONNECTED) 1] get /cloudcc

Node does not exist: /cloudcc

[zk: localhost:2181(CONNECTED) 2] create /cloudcc a66cf76edd9b6bc6179cad7c528dec3ceaf001cc

Created /cloudcc

[zk: localhost:2181(CONNECTED) 3]

 

Kafka 单节点安装

[root@localhost Cluster]# tar -xzf kafka_2.12-0.10.2.0.tgz

[root@localhost Cluster]# cd kafka_2.12-0.10.2.0/config/

[root@localhost config]# vim server.properties

#开启远程访问

advertised.listeners=PLAINTEXT://192.168.1.244:9092

[root@localhost config]# cd ../bin/

[root@localhost bin]# ./kafka-server-start.sh ../config/server.properties &

 

CentOS7下RabbitMQ服务安装配置

http://www.linuxidc.com/Linux/2016-03/129557.htm

 

Zookeeper单节点安装

tar -xvzf zookeeper-3.4.5.tar.gz

mv conf/zoo-sample.cfg conf/zoo.cfg

vim zoo.cfg

dataDir=/users/me/zookeeper

bin/zkServer.sh start

bin/zkServer.sh start-foreground

bin/zkServer.sh status

tail -500f zookeeper.out

bin/zkCli.sh

bin/zkCli.sh -server 127.0.0.1:2181

ls /

create /workers ""

ls /

delete /workers

ls /

quit

bin/zkServer.sh stop

cap zookeeper的设计尽可能满足一致性和可用性

脑裂

代码实例

 

Zookeeper集群安装

tickTime=2000

initLimit=10

syncLimit=5

dataDir=./data

clientPort=2181(2182,2183,...)

server.1=127.0.0.1:2222:2223

server.2=127.0.0.1:3333:3334

server.3=127.0.0.1:4444:4445

mkdir -p z1/data

mkdir -p z2/data

mkdir -p z3/data

echo 1 > z1/data/myid

echo 2 > z2/data/myid

echo 3 > z3/data/myid

 

cd z1

bin/zkServer.sh start ./z1.cfg

cd z2

bin/zkServer.sh start ./z2.cfg

cd z3

bin/zkServer.sh start ./z3.cfg

 

bin/zkCli.sh -server 127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183

负载均衡

如果只想按区域连接服务器，只需客户端连接串中包括指定的IP就可以。