How can i set the docker-compose.yml file?

[jabel123]

How can i set the docker-compose.yml's volues?

when i use this sample error is occured

shell

$ git clone https://github.com/big-data-europe/docker-hadoop
$ cd docker-hadoop
$ docker-compose up -d 

code

package com.hadoop.test;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.URISyntaxException;

public class HdfsTest
{
    public static void main(String[] args) throws IOException, URISyntaxException
    {
        Configuration conf = new Configuration();

        FileSystem fs = FileSystem.get(new URI("hdfs://localhost:9000/"), conf);
        FSDataOutputStream outStream = fs.create(new Path("test.txt"));

        File file = new File("./test.txt");
        BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "utf-8"));
        String str = "";
        while((str = br.readLine()) != null)
        {
            System.out.println(str);
            outStream.writeChars(str + '\n');
            outStream.flush();
        }
        outStream.close();
        fs.close();
    }
}

the error

Exception in thread "main" org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /user/we/test.txt could only be written to 0 of the 1 minReplication nodes. There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:2219)
	at org.apache.hadoop.hdfs.server.namenode.FSDirWriteFileOp.chooseTargetForNewBlock(FSDirWriteFileOp.java:294)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2789)
	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:892)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:574)
	at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070)
	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:999)
	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:927)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2915)

	at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1545)
	at org.apache.hadoop.ipc.Client.call(Client.java:1491)
	at org.apache.hadoop.ipc.Client.call(Client.java:1388)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:233)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
	at com.sun.proxy.$Proxy12.addBlock(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:517)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
	at com.sun.proxy.$Proxy13.addBlock(Unknown Source)
	at org.apache.hadoop.hdfs.DFSOutputStream.addBlock(DFSOutputStream.java:1081)
	at org.apache.hadoop.hdfs.DataStreamer.locateFollowingBlock(DataStreamer.java:1866)
	at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1668)
	at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:716)

> Task :HdfsTest.main() FAILED

Execution failed for task ':HdfsTest.main()'.
> Process 'command '/Users/we/Library/Java/JavaVirtualMachines/azul-13.0.9/Contents/Home/bin/java'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

[nguacon90]

It seems that not correct port 9000. You try port 8020 instead of 9000 if you're using images: 2.0.0-hadoop3.2.1-java8. Also, you should change in docker-compose.yml: 9000 -> 8020

[fenggolang]

hdfs cluster is ok by docker-compose up -d, but hdfs cluster is failed by k8s deploy