简介
安装
java开发
依赖
<dependency>
<groupId>org.apache.flume</groupId>
<artifactId>flume-ng-core</artifactId>
<version>1.5.2</version>
</dependency>
<dependency>
<groupId>org.apache.flume</groupId>
<artifactId>flume-ng-configuration</artifactId>
<version>1.5.2</version>
</dependency>
说明
192.168.1.100是hadoop主服务器
192.168.60.8是安装flume的服务器
配置文件
example.conf(192.168.60.8)
agent1.channels = c1
agent1.sources = r1
agent1.sinks = sink1
agent1.channels.c1.type = memory
agent1.sources.r1.channels = c1
agent1.sources.r1.type = avro
agent1.sources.r1.bind = 0.0.0.0
agent1.sources.r1.port = 41414
agent1.sinks.sink1.type=hdfs
agent1.sinks.sink1.hdfs.path=hdfs://192.168.1.100:50040/flume
agent1.sinks.sink1.hdfs.fileType=DataStream
agent1.sinks.sink1.hdfs.writeFormat=TEXT
agent1.sinks.sink1.hdfs.rollInterval=4
agent1.sinks.sink1.channel=c1
运行配置
./bin/flume-ng agent -n agent1 -c conf -f example.conf -Dflume.root.logger=DEBUG,console
java程序
import java.nio.charset.Charset;
import org.apache.flume.Event;
import org.apache.flume.EventDeliveryException;
import org.apache.flume.api.RpcClient;
import org.apache.flume.api.RpcClientFactory;
import org.apache.flume.event.EventBuilder;
public class MyApp {
public static void main(String[] args) {
MyRpcClientFacade client = new MyRpcClientFacade();
//配置文件机器地址、端口
client.init("192.168.60.8", 41414);
String sampleData = "Hello Flume!";
for (int i = 0; i < 10; i++) {
client.sendDataToFlume(sampleData);
}
client.cleanUp();
}
}
class MyRpcClientFacade {
private RpcClient client;
private String hostname;
private int port;
public void init(String hostname, int port) {
this.hostname = hostname;
this.port = port;
this.client = RpcClientFactory.getDefaultInstance(hostname, port);
}
public void sendDataToFlume(String data) {
Event event = EventBuilder.withBody(data, Charset.forName("UTF-8"));
try {
client.append(event);
} catch (EventDeliveryException e) {
client.close();
client = null;
client = RpcClientFactory.getDefaultInstance(hostname, port);
}
}
public void cleanUp() {
client.close();
System.out.println("程序执行完毕。。。");
}
}
查看结果(192.168.1.100)
/opt/hadoop/bin/hadoop fs -ls /flume
Paste_Image.png
/opt/hadoop/bin/hadoop fs -cat /flume/FlumeData.1467803628159
Paste_Image.png
