Testing Examples

ZooKeeper is used as the registration center. The provider registers its services with the registration center. The consumer obtains the address list of the service provider from the registration center.

Start the ZooKeeper service.
```
cd /opt/zookeeper-3.4.14/bin/
sh zkServer.sh start
```
If Starting zookeeper ... STARTED is displayed, the Zookeeper service is started successfully.
Check the ZooKeeper service status.
```
sh zkServer.sh status
```
Check the Zookeeper process.
```
ps -ef | grep zookeeper
```
Check the Zookeeper listening port.
```
netstat -anpt | grep 2181
```
- View the Zookeeper log information.
```
cat zookeeper.out
```
- Stop the ZooKeeper service.
```
cd /opt/zookeeper-3.4.14/bin/
sh zkServer.sh stop
```

Download dubbo-sample.

       
            cd /home
git config --global http.sslVerify false
git clone https://github.com/apache/dubbo-samples.git

Go to the /home/dubbo-samples/dubbo-samples-api directory.
1

cd /home/dubbo-samples/dubbo-samples-api

Start the provider.

       
            mvn clean package

       
            mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.provider.Application exec:java -Ddubbo.application.qos.port=33333 -Ddubbo.application.qos.enable=true -Ddubbo.application.qos.accept.foreign.ip=false

If dubbo service started is displayed, the provider is started successfully.

View the listening port:
```
netstat -anpt | grep 33333
netstat -anpt | grep 20880
```
To stop the provider service, press Ctrl+C.
Open a new window and go to the /home/dubbo-samples/dubbo-samples-api/ directory.
1

cd /home/dubbo-samples/dubbo-samples-api/

Start the consumer.

mvn clean package

       
            mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.client.Application exec:java -Dexec.cleanupDaemonThreads=false

If hi, dubbo is displayed, the consumer is started successfully.

Parent topic: Compilation