Eclipse Hadoop插件问题（Call to localhost / 127.0.0.1：50070）任何身体都能给我解决方案吗？ [英] Eclipse Hadoop plugin issue(Call to localhost/127.0.0.1:50070 )Can any body give me the solution for this?
问题描述
我已经下载了hadoop-eclipse-plugin-0.20.3-SNAPSHOT.jar和在/ home / training / eclipse / plugins /文件夹中复制相同。
运行 - > Eclipse - >转到File（在菜单栏中） - >新 - >其他
从其他选择MapReduce项目。我选择了指定Hadoop库位置。并将位置指定为/ usr / lib / hadoop。
在这个位置我有以下文件。
bin hadoop-examples-0.20.2-cdh3u2.jar
build.xml hadoop-examples.jar
CHANGES.txt hadoop-test-0.20.2-cdh3u2.jar
conf hadoop-test.jar
contrib hadoop-tools-0.20.2 -cdh3u2.jar
example-confs hadoop-tools.jar
hadoop-0.20.2-cdh3u2-ant.jar ivy
hadoop-0.20.2-cdh3u2-core.jar ivy.xml
hadoop-0.20.2-cdh3u2-examples.jar lib
hadoop-0.20.2-cdh3u2-test.jar LICENSE.txt
hadoop-0.20.2-cdh3u2-tools.jar logs
hadoop-ant-0.20.2-cdh3u2.jar NOTICE.txt
hadoop-ant.jar pids
hadoop-core-0.20.2-cdh3u2.jar README.txt
hadoop-core.jar webapps
，并将Mpareduce项目命名为myhadoop，并点击完成按钮。
我在DFS位置按钮中找到了Mapreduce按钮，但不是其父级。
发送并检查我的dfs和映射端口。
我的core-site.xml是
< configuration>
< property>
< name> fs.default.name< / name>
< value> hdfs：// localhost：8020< / value>
< / property>
我的mapred-site.xml
<结构>
< property>
< name> mapred.job.tracker< / name>
< value> localhost：8021< / value>
< / property>
在地图上ReTo定义Hadoop在eclipse中的位置我已经给出如下。
Map / Reduce Master
主机：localhost
端口50021
DFS Master：
主机：localhost
端口：50020
在同一个我选择使用M / R主机。
我已经运行cloudera的示例wordcount程序，但它给我以下问题。
请给我解决方案，我正在尝试从2天。，....
线程主 java.io.IOException：调用localhost / 127.0.0.1：50070在本地异常失败：java.io.EOFException
在org.apache.hadoop.ipc.Client.wrapException（Client.java:1142）
在org.apache.hadoop.ipc.Client.call（Client.java:1110）
在org.apache.hadoop.ipc.RPC $ Invoker.invoke（RPC.java:226）
在$ Proxy0.getProtocolVersion（未知源）
在org.apache.hadoop.ipc.RPC.getProxy（RPC.java:398）
在org.apache.hadoop.ipc.RPC.getProxy（RPC .java：384）
在org.apache.hadoop.hdfs.DFSClient.createRPCNamenode（DFSClient.java:111）
在org.apache.hadoop.hdfs.DFSClient。< init>（DFSClient。 java：213）
在org.apache.hadoop.hdfs.DFSClient。< init>（DFSClient.java:180）
在org.apache.hadoop.hdfs.DistributedFileSystem.initialize（DistributedFileSystem.java ：89）
在org.apache.hadoop.fs.FileSystem.createFileSystem（文件System.java:1514）
在org.apache.hadoop.fs.FileSystem.access $ 200（FileSystem.java:67）
在org.apache.hadoop.fs.FileSystem $ Cache.getInternal（FileSystem .java：1548）
在org.apache.hadoop.fs.FileSystem $ Cache.get（FileSystem.java:1530）
在org.apache.hadoop.fs.FileSystem.get（FileSystem.java ：228）
在org.apache.hadoop.fs.FileSystem.get（FileSystem.java:111）
在org.apache.hadoop.fs.FileSystem.get（FileSystem.java:212）
在org.apache.hadoop.fs.Path.getFileSystem（Path.java:183）
在org.apache.hadoop.mapreduce.lib.input.FileInputFormat.addInputPath（FileInputFormat.java:368）
在WordCount.main（WordCount.java:65）
导致：java.io.EOFException
在java.io.DataInputStream.readInt（DataInputStream.java:375）
在org.apache.hadoop.ipc.Client $ Connection.receiveResponse（Client.java:815）
在org.apache.hadoop.ipc.Client $ Connection.run（Client.java:724）
尝试从本地主机的配置更改计算机的名称将主机名
Issue: Eclipse Hadoop plugin issue(Call to localhost/127.0.0.1:50070 failed on local exception: java.io.EOFException). Can any body give me the solution for this?
I am having Cloudera training tutorial. Which uses Eclipse(Helios)3.6 and Hadoop.0.20.2-cdh3u2 versions.
I had downloaded the hadoop-eclipse-plugin-0.20.3-SNAPSHOT.jar and copied the same in /home/training/eclipse/plugins/ folder.
Run --> Eclipse --> gone to File (which is in Menu bar) --> New --> other
From other Selected the MapReduce Project. I had selected the Specify Hadoop library location. And given location as "/usr/lib/hadoop". In this location I have below files.
bin hadoop-examples-0.20.2-cdh3u2.jar
build.xml hadoop-examples.jar
CHANGES.txt hadoop-test-0.20.2-cdh3u2.jar
conf hadoop-test.jar
contrib hadoop-tools-0.20.2-cdh3u2.jar
example-confs hadoop-tools.jar
hadoop-0.20.2-cdh3u2-ant.jar ivy
hadoop-0.20.2-cdh3u2-core.jar ivy.xml
hadoop-0.20.2-cdh3u2-examples.jar lib
hadoop-0.20.2-cdh3u2-test.jar LICENSE.txt
hadoop-0.20.2-cdh3u2-tools.jar logs
hadoop-ant-0.20.2-cdh3u2.jar NOTICE.txt
hadoop-ant.jar pids
hadoop-core-0.20.2-cdh3u2.jar README.txt
hadoop-core.jar webapps
and given the Mpareduce Project as "myhadoop" and clicked the finish button. I got the Mapreduce button at DFS Locations button and but not its hirearchy.
Gone and checked my dfs and mapred ports.
My core-site.xml is
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:8020</value>
</property>
my mapred-site.xml
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>localhost:8021</value>
</property>
At Map ReTo Define Hadoop Location in eclipse I had given as below.
Map/Reduce Master
Host: localhost
port 50021
DFS Master:
Host :localhost
Port:50020
at the same I am select use M/R host.
I had ran cloudera's example wordcount program but it is giving me below issue. Please give me solution I am trying from 2 days.,....
Exception in thread "main" java.io.IOException: Call to localhost/127.0.0.1:50070 failed on local exception: java.io.EOFException
at org.apache.hadoop.ipc.Client.wrapException(Client.java:1142)
at org.apache.hadoop.ipc.Client.call(Client.java:1110)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:226)
at $Proxy0.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:398)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:384)
at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:111)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:213)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:180)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1514)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:67)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:1548)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1530)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:228)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:111)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:212)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:183)
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.addInputPath(FileInputFormat.java:368)
at WordCount.main(WordCount.java:65)
Caused by: java.io.EOFException
at java.io.DataInputStream.readInt(DataInputStream.java:375)
at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:815)
at org.apache.hadoop.ipc.Client$Connection.run(Client.java:724)
Try changing the name of your machine in the configuration from localhost to the hostname
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