1. 新增kryo以及protostuff两个高性能的二进制序列化协议。kryo的代码为dubbox中的代码，protostuff的代码为自己实现。
2. 完成dubbo内部实现后的java、fastjson、kryo、pb、hessian2几个协议的性能benchmark test。在该测试下，pb的性能表现非常突出。压缩后的大小仅为h2的1/4，整体时间也仅为h2的一半。
3. kryo的benchmark表现和其宣传的速度差距非常大。落后于h2和pb几十倍。
4. 想使用kryo或者pb协议进行二进制传输的同学，直接按照dubbo序列化协议的用法去声明即可。如都不声明，暂时还走h2的默认协议。

Dubbo is a distributed service framework enpowers applications with service import/export capability with high performance RPC.

It's composed of three kernel parts:

Remoting: a network communication framework provides sync-over-async and request-response messaging.

Clustering: a remote procedure call abstraction with load-balancing/failover/clustering capabilities.

Registry: a service directory framework for service registration and service event publish/subscription

For more, please refer to:

http://dubbo.io

Export remote service:

<bean id="barService" class="com.foo.BarServiceImpl" />

<dubbo:service interface="com.foo.BarService" ref="barService" />

Refer remote service:

<dubbo:reference id="barService" interface="com.foo.BarService" />

<bean id="barAction" class="com.foo.BarAction">
    <property name="barService" ref="barService" />
</bean>

0. Install the git and maven command line:

   yum install git or: apt-get install git

   cd ~ wget http://www.apache.org/dist//maven/binaries/apache-maven-2.2.1-bin.tar.gz tar zxvf apache-maven-2.2.1-bin.tar.gz vi .bash_profile - append: export PATH=$PATH:~/apache-maven-2.2.1/bin source .bash_profile

1. Checkout the dubbo source code:

   cd ~ git clone https://github.com/alibaba/dubbo.git dubbo

   git checkout master or: git checkout -b dubbo-2.4.0

2. Import the dubbo source code to eclipse project:

   cd ~/dubbo mvn eclipse:eclipse Eclipse -> Menu -> File -> Import -> Exsiting Projects to Workspace -> Browse -> Finish

   Context Menu -> Run As -> Java Application: dubbo-demo-provider/src/test/java/com.alibaba.dubbo.demo.provider.DemoProvider dubbo-demo-consumer/src/test/java/com.alibaba.dubbo.demo.consumer.DemoConsumer dubbo-monitor-simple/src/test/java/com.alibaba.dubbo.monitor.simple.SimpleMonitor dubbo-registry-simple/src/test/java/com.alibaba.dubbo.registry.simple.SimpleRegistry

   Edit Config: dubbo-demo-provider/src/test/resources/dubbo.properties dubbo-demo-consumer/src/test/resources/dubbo.properties dubbo-monitor-simple/src/test/resources/dubbo.properties dubbo-registry-simple/src/test/resources/dubbo.properties

3. Build the dubbo binary package:

   cd ~/dubbo mvn clean install -Dmaven.test.skip cd dubbo/target ls

4. Install the demo provider:

   cd ~/dubbo/dubbo-demo-provider/target tar zxvf dubbo-demo-provider-2.4.0-assembly.tar.gz cd dubbo-demo-provider-2.4.0/bin ./start.sh

5. Install the demo consumer:

   cd ~/dubbo/dubbo-demo-consumer/target tar zxvf dubbo-demo-consumer-2.4.0-assembly.tar.gz cd dubbo-demo-consumer-2.4.0/bin ./start.sh cd ../logs tail -f stdout.log

6. Install the simple monitor:

   cd ~/dubbo/dubbo-simple-monitor/target tar zxvf dubbo-simple-monitor-2.4.0-assembly.tar.gz cd dubbo-simple-monitor-2.4.0/bin ./start.sh http://127.0.0.1:8080

7. Install the simple registry:

   cd ~/dubbo/dubbo-simple-registry/target tar zxvf dubbo-simple-registry-2.4.0-assembly.tar.gz cd dubbo-simple-registry-2.4.0/bin ./start.sh

   cd ~/dubbo/dubbo-demo-provider/conf vi dubbo.properties - edit: dubbo.registry.adddress=dubbo://127.0.0.1:9090 cd ../bin ./restart.sh

   cd ~/dubbo/dubbo-demo-consumer/conf vi dubbo.properties - edit: dubbo.registry.adddress=dubbo://127.0.0.1:9090 cd ../bin ./restart.sh

   cd ~/dubbo/dubbo-simple-monitor/conf vi dubbo.properties - edit: dubbo.registry.adddress=dubbo://127.0.0.1:9090 cd ../bin ./restart.sh

8. Install the zookeeper registry:

   cd ~ wget http://www.apache.org/dist//zookeeper/zookeeper-3.3.3/zookeeper-3.3.3.tar.gz tar zxvf zookeeper-3.3.3.tar.gz cd zookeeper-3.3.3/conf cp zoo_sample.cfg zoo.cfg vi zoo.cfg - edit: dataDir=/home/xxx/data cd ../bin ./zkServer.sh start

   cd ~/dubbo/dubbo-demo-provider/conf vi dubbo.properties - edit: dubbo.registry.adddress=zookeeper://127.0.0.1:2181 cd ../bin ./restart.sh

   cd ~/dubbo/dubbo-demo-consumer/conf vi dubbo.properties - edit: dubbo.registry.adddress=zookeeper://127.0.0.1:2181 cd ../bin ./restart.sh

   cd ~/dubbo/dubbo-simple-monitor/conf vi dubbo.properties - edit: dubbo.registry.adddress=zookeeper://127.0.0.1:2181 cd ../bin ./restart.sh

9. Install the redis registry:

   cd ~ wget http://redis.googlecode.com/files/redis-2.4.8.tar.gz tar xzf redis-2.4.8.tar.gz cd redis-2.4.8 make nohup ./src/redis-server redis.conf &

   cd ~/dubbo/dubbo-demo-provider/conf vi dubbo.properties - edit: dubbo.registry.adddress=redis://127.0.0.1:6379 cd ../bin ./restart.sh

   cd ~/dubbo/dubbo-demo-consumer/conf vi dubbo.properties - edit: dubbo.registry.adddress=redis://127.0.0.1:6379 cd ../bin ./restart.sh

   cd ~/dubbo/dubbo-simple-monitor/conf vi dubbo.properties - edit: dubbo.registry.adddress=redis://127.0.0.1:6379 cd ../bin ./restart.sh

10. Install the admin console:

    cd ~/dubbo/dubbo-admin mvn jetty:run -Ddubbo.registry.address=zookeeper://127.0.0.1:2181 http://root:root@127.0.0.1:8080