Yarn模式部署Flink集群

news2025/1/24 5:46:57

一、环境准备

1、准备两台服务器server115 和server116安装好hadoop环境，其中server115配置hdfs的namenode，在server116上配置hdfs的SecondaryNameNode，server116配置yarn的 ResourceManager，启动hadoop集群

2、配置hadoop环境变量

vim /etc/profile


export HADOOP_CLASSPATH=`hadoop classpath`

二、配置FLink集群环境

关于flink的架构图

部署配置：

服务器	server115	server116
Flink组件	taskmanger	jobmanager taskmanager

(1) 进入server115节点，编辑flink的配置文件flink-conf.yml

# JobManager runs.
jobmanager.rpc.address: server116
jobmanager.bind-host: server116
taskmanager.bind-host: server115
taskmanager.host: server115
rest.port: 8081
rest.address: server116

(2) 进入server116节点，编辑flink的配置文件flink-conf.yml

# JobManager runs.
jobmanager.rpc.address: server116
jobmanager.bind-host: server116
taskmanager.bind-host: server116
taskmanager.host:server116
rest.port: 8081
rest.address: server116

(3)在server115、server116的节点workers配置

server115
server116

三、启动flink

 ./flink/bin/yarn-session.sh    -d

JobManager Web Interface: http://server116:40617

四、任务测试

1、开启一个tcp服务

nc  -l  -p  9999

2、编写java侦听代码

public class SocketFlinkExecute {

    public static void main(String[] args) {
        StreamExecutionEnvironment env = StreamExecutionEnvironment.createRemoteEnvironment("server116", 40617);
        DataStream<Tuple2<String, Integer>> dataStream = env
                .socketTextStream("server116", 9999)
                .flatMap(new MySplitter())
                .keyBy(value -> value.f0)
                .window(TumblingProcessingTimeWindows.of(Time.seconds(5)))
                .sum(1);
        dataStream.print();
        try {
            env.execute("Window WordCount Remote");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static class MySplitter implements FlatMapFunction<String, Tuple2<String, Integer>> {
        @Override
        public void flatMap(String sentence, Collector<Tuple2<String, Integer>> out) throws Exception {
            for (String word: sentence.split(" ")) {
                out.collect(new Tuple2<String, Integer>(word, 1));
            }
        }
    }

}

运行程序，tcp服务端发送文本数据