Run on Hadoop cluster Hadoop jar Hadoop - graphs - the client - jobclient - 2.4.0 - tests. The jar TestDFSIO - write - 10 - the size of 1 MB - resFile nrFiles/TMP/dfsio. TXT, to do the Hadoop TestDFSIO cluster throughput performance testing, but appeared abnormal Hadoop 9000 port connection problem, see a lot of information on the Internet, but could not find relevant solutions,
17/08/31 17:03:45 INFO graphs. Job: Task Id: attempt_1504061389169_0002_m_000005_1, Status: FAILED
Error: java.net.ConnectException: Call From master/192.168.10.151 to master: 9000 failed on connection exception: java.net.ConnectExcep
At sun. Reflect. NativeConstructorAccessorImpl. NewInstance0 (Native Method)
At sun. Reflect. NativeConstructorAccessorImpl. NewInstance (NativeConstructorAccessorImpl. Java: 62)
At sun. Reflect. DelegatingConstructorAccessorImpl. NewInstance (DelegatingConstructorAccessorImpl. Java: 45)
The at Java. Lang. Reflect. Constructor. NewInstance (422) Constructor. Java:
At org.apache.hadoop.net.NetUtils.wrapWithMessage NetUtils. Java: (783)
At org.apache.hadoop.net.NetUtils.wrapException NetUtils. Java: (730)
At org, apache hadoop. Ipc. Client. Call (1414). The Client Java:
At org, apache hadoop. Ipc. Client. Call (1363). The Client Java:
At org, apache hadoop. Ipc. ProtobufRpcEngine $Invoker. Invoke (ProtobufRpcEngine. Java: 206)
At com. Sun. Proxy. $Proxy13. GetBlockLocations (Unknown Source)
At sun. Reflect. NativeMethodAccessorImpl. Invoke0 (Native Method)
At sun. Reflect. NativeMethodAccessorImpl. Invoke (NativeMethodAccessorImpl. Java: 62)
At sun. Reflect. DelegatingMethodAccessorImpl. Invoke (43) DelegatingMethodAccessorImpl. Java:
The at Java. Lang. Reflect. Method. Invoke (497) Method. The Java:
At org, apache hadoop. IO. Retry. RetryInvocationHandler. InvokeMethod (RetryInvocationHandler. Java: 190)
At org, apache hadoop. IO. Retry. RetryInvocationHandler. Invoke (RetryInvocationHandler. Java: 103)
At com. Sun. Proxy. $Proxy13. GetBlockLocations (Unknown Source)
At org, apache hadoop. HDFS. ProtocolPB. ClientNamenodeProtocolTranslatorPB. GetBlockLocations (ClientNamenodeProtocolTranslatorPB. J
At org, apache hadoop. HDFS. DFSClient. CallGetBlockLocations (DFSClient. Java: 1142)
At org, apache hadoop. HDFS. DFSClient. GetLocatedBlocks (DFSClient. Java: 1132)
At org, apache hadoop. HDFS. DFSClient. GetLocatedBlocks (DFSClient. Java: 1122)
At org, apache hadoop. HDFS. DFSInputStream. FetchLocatedBlocksAndGetLastBlockLength (DFSInputStream. Java: 264)
At org, apache hadoop. HDFS. DFSInputStream. OpenInfo (DFSInputStream. Java: 231)
At org, apache hadoop. HDFS. DFSInputStream. & lt; init> (DFSInputStream. Java: 224)
At org, apache hadoop. HDFS. DFSClient. Open (1295) DFSClient. Java:
At org, apache hadoop. HDFS. DistributedFileSystem $3. DoCall (DistributedFileSystem. Java: 300)
At org, apache hadoop. HDFS. DistributedFileSystem $3. DoCall (DistributedFileSystem. Java: 296)
At org, apache hadoop. Fs. FileSystemLinkResolver. Resolve (FileSystemLinkResolver. Java: 81)
At org, apache hadoop. HDFS. DistributedFileSystem. Open (296) DistributedFileSystem. Java:
At org, apache hadoop. Fs. FileSystem. Open (764) FileSystem. Java:
At org, apache hadoop. Mapred. MapTask. GetSplitDetails (MapTask. Java: 355)
At org, apache hadoop. Mapred. MapTask. RunOldMapper (MapTask. Java: 403)
At org, apache hadoop. Mapred. MapTask. Run (342) MapTask. Java:
At org, apache hadoop. Mapred. YarnChild $2. The run (167) YarnChild. Java:
The at Java. Security. The AccessController. DoPrivileged (Native Method)
At javax.mail. Security. Auth. Subject. The doAs (422) Subject. Java:
At org, apache hadoop. Security. UserGroupInformation. DoAs (UserGroupInformation. Java: 1548)
At org, apache hadoop. Mapred. YarnChild. Main (162) YarnChild. Java:
Under Caused by: java.net.ConnectException: Connection refused
At sun. Nio. Ch. SocketChannelImpl. CheckConnect (Native Method)
At sun. Nio. Ch. SocketChannelImpl. FinishConnect (SocketChannelImpl. Java: 717)
At org.apache.hadoop.net.SocketIOWithTimeout.connect SocketIOWithTimeout. Java: (206)
At org.apache.hadoop.net.NetUtils.connect NetUtils. Java: (529)
At org.apache.hadoop.net.NetUtils.connect NetUtils. Java: (493)
At org, apache hadoop. Ipc. Client $Connection. SetupConnection (604). The Client Java:
At org, apache hadoop. Ipc. Client $Connection. SetupIOstreams (699). The Client Java:
At org, apache hadoop. Ipc. Client $Connection. The access of $2800 (367). The Client Java:
At org, apache hadoop. Ipc. Client. GetConnection (1462). The Client Java:
At org, apache hadoop. Ipc. Client. Call (1381). The Client Java:
. 31 more
17/08/31 17:04:03 INFO graphs. The Job: the map reduce 100% 100%
17/08/31 17:04:04 INFO mapred. ClientServiceDelegate: Application state is completed. The FinalApplicationStatus=FAILED. Redirecting to job
17/08/31 17:04:04 INFO mapred. ClientServiceDelegate: Application state is completed. The FinalApplicationStatus=FAILED. Redirecting to job
17/08/31 17:04:04 INFO mapred. ClientServiceDelegate: Application state is completed. The FinalApplicationStatus=FAILED. Redirecting to job
nullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnull