当我尝试将hadoop jar运行到远程节点时,我收到错误

时间:2015-01-20 01:16:44

标签: hadoop

当我尝试将hadoop jar运行到远程节点时出现此错误,我在多集群中有一个主节点和几个从属节点。我有两个问题

  1. 当我运行start-all.sh它问我密码事件,我创建ssh auth,我可以ssh到远程和localhost没有密码。例如,如果运行start-all.ssh,我会得到user @ mycomputername:password,但是当我一直按Enter键时,所有的daemens都会运行。
  2. 是以下错误。

    15/01/20 08:53:01 ERROR security.UserGroupInformation: PriviledgedActionException as:utra cause:java.net.ConnectException: Call to user/------:9000 failed on connection exception: java.net.ConnectException: Connection refused
    Exception in thread "main" java.net.ConnectException: Call to user/------:9000 failed on connection exception: java.net.ConnectException: Connection refused
        at org.apache.hadoop.ipc.Client.wrapException(Client.java:1142)
        at org.apache.hadoop.ipc.Client.call(Client.java:111`enter code here`8)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
        at com.sun.proxy.$Proxy1.getProtocolVersion(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:85)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:62)
        at com.sun.proxy.$Proxy1.getProtocolVersion(Unknown Source)
        at org.apache.hadoop.ipc.RPC.checkVersion(RPC.java:422)
        at org.apache.hadoop.hdfs.DFSClient.createNamenode(DFSClient.java:183)
        at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:281)
        at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:245)
        at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:100)
        at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1446)
        at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:67)
        at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1464)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:263)
        at org.apache.hadoop.fs.Path.getFileSystem(Path.java:187)
        at org.apache.hadoop.mapred.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:110)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:975)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
        at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:910)
        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1353)
        at WordCount.main(WordCount.java:62)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:160)
    Caused by: java.net.ConnectException: Connection refused
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
        at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:511)
        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:481)
        at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:457)
        at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:583)
        at org.apache.hadoop.ipc.Client$Connection.access$2200(Client.java:205)
        at org.apache.hadoop.ipc.Client.getConnection(Client.java:1249)
        at org.apache.hadoop.ipc.Client.call(Client.java:1093)
        ... 34 more
    

1 个答案:

答案 0 :(得分:0)

以root身份使用此命令:

chown -R hadoop:root /usr/local/hadoop