hadoop3.1.1 $MkdirsRequestProto cannot be cast to com.google.protobuf.Message

啊大哥 2019-07-17 02:58:05

刚开始学hadoop启动的时候就报错了.所用的hadoop jar包都是在hadoop/share/下面的jar
这是代码



package com.ccb.bdl.modules;



import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.fs.FileSystem;

import org.apache.hadoop.fs.Path;

import org.junit.After;

import org.junit.Before;

import org.junit.Test;



import java.io.IOException;



/**

 * Created by 86184 on 2019/7/17.

 */

public class TestHdfs {



    Configuration configuration;

    FileSystem fileSystem;



    @Before

    public void conn() throws IOException {

        configuration = new Configuration(true);

        fileSystem = FileSystem.get(configuration);

    }



    @After

    public void close() throws IOException {

     fileSystem.close();

    }

    @Test

    public void mkdir() throws IOException {

        Path path = new Path("/ooxx");

//        if(fileSystem.exists(path)){

//            fileSystem.delete(path,true);

//        }

        fileSystem.mkdirs(path);

    }





}

下面是报错



14:43:51.998 [main] DEBUG org.apache.hadoop.hdfs.protocol.datatransfer.sasl.DataTransferSaslUtil - DataTransferProtocol not using SaslPropertiesResolver, no QOP found in configuration for dfs.data.transfer.protection

14:43:52.005 [main] DEBUG org.apache.hadoop.hdfs.DFSClient - /ooxx: masked={ masked: rwxr-xr-x, unmasked: rwxrwxrwx }

14:44:55.263 [main] DEBUG org.apache.hadoop.io.retry.RetryInvocationHandler - Exception while invoking call #0 ClientNamenodeProtocolTranslatorPB.mkdirs over node01/192.168.33.101:8020. Not retrying because try once and fail.

java.lang.ClassCastException: org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$MkdirsRequestProto cannot be cast to com.google.protobuf.Message

	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:225)

	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116)

	at com.sun.proxy.$Proxy16.mkdirs(Unknown Source)

	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.mkdirs(ClientNamenodeProtocolTranslatorPB.java:653)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:498)

	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.$Proxy17.mkdirs(Unknown Source)

	at org.apache.hadoop.hdfs.DFSClient.primitiveMkdir(DFSClient.java:2409)

	at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:2385)

	at org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1321)

	at org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1318)

	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)

	at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirsInternal(DistributedFileSystem.java:1335)

	at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirs(DistributedFileSystem.java:1310)

	at org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:2326)

	at com.ccb.bdl.modules.TestHdfs.mkdir(TestHdfs.java:36)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:498)

	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)

	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)

	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)

	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)

	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)

	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)

	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)

	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)

	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)

	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)

	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)

	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)

	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)

	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)

	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)

	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)

	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)