我在ubuntu 16.04 LTS上运行了一个集群hadoop。我按照以下link一步一步地遵循指南。 当我尝试执行第5步，并运行此命令（在hadoop-2.7.3目录中）：
$ bin/hdfs dfs -put etc/hadoop input
我有这些警告信息，但我不知道原因：
17/04/11 14:14:16 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.endBlock(DFSOutputStream.java:370)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:546)
17/04/11 14:14:16 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.endBlock(DFSOutputStream.java:370)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:546)
17/04/11 14:14:16 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.endBlock(DFSOutputStream.java:370)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:546)
17/04/11 14:14:16 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeInternal(DFSOutputStream.java:577)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:573)
17/04/11 14:14:16 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeInternal(DFSOutputStream.java:577)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:573)
17/04/11 14:14:16 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.endBlock(DFSOutputStream.java:370)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:546)
17/04/11 14:14:16 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeInternal(DFSOutputStream.java:577)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:573)
17/04/11 14:14:17 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.endBlock(DFSOutputStream.java:370)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:546)
17/04/11 14:14:17 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeInternal(DFSOutputStream.java:577)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:573)
17/04/11 14:14:18 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeInternal(DFSOutputStream.java:577)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:573)
17/04/11 14:14:18 WARN hdfs.DFSClient: Caught exception
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1249)
at java.lang.Thread.join(Thread.java:1323)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.closeResponder(DFSOutputStream.java:609)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.endBlock(DFSOutputStream.java:370)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:546)
问题在于步骤6，当我运行命令时：
$ bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar grep input output 'dfs[a-z.]+'
在输出的某个时刻，还有另一个警告，导致命令和算法失败。我提供了一段输出（出现错误）：
17/04/11 14:15:57 INFO mapred.LocalJobRunner: map task executor complete.
17/04/11 14:15:57 WARN mapred.LocalJobRunner: job_local1517099600_0001
java.lang.Exception: java.io.FileNotFoundException: Path is not a file: /user/utente/input/hadoop
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:75)
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:61)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1828)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1799)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1712)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:588)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:365)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:982)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)
at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522)
Caused by: java.io.FileNotFoundException: Path is not a file: /user/utente/input/hadoop
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:75)
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:61)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1828)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1799)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1712)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:588)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:365)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:982)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:73)
at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1228)
at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1213)
at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1201)
at org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:306)
at org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:272)
at org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:264)
at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1526)
at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:303)
at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:299)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:299)
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:769)
at org.apache.hadoop.mapreduce.lib.input.LineRecordReader.initialize(LineRecordReader.java:85)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:548)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:786)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.hadoop.ipc.RemoteException(java.io.FileNotFoundException): Path is not a file: /user/utente/input/hadoop
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:75)
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:61)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1828)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1799)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1712)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:588)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:365)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:982)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)
at org.apache.hadoop.ipc.Client.call(Client.java:1475)
at org.apache.hadoop.ipc.Client.call(Client.java:1412)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
at com.sun.proxy.$Proxy10.getBlockLocations(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getBlockLocations(ClientNamenodeProtocolTranslatorPB.java:255)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
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:191)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy11.getBlockLocations(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1226)
... 21 more
17/04/11 14:15:58 INFO mapreduce.Job: map 100% reduce 0%
17/04/11 14:15:58 INFO mapreduce.Job: Job job_local1517099600_0001 failed with state FAILED due to: NA
17/04/11 14:15:58 INFO mapreduce.Job: Counters: 23
File System Counters
FILE: Number of bytes read=9818273
FILE: Number of bytes written=17083423
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=1686392
HDFS: Number of bytes written=0
HDFS: Number of read operations=957
HDFS: Number of large read operations=0
HDFS: Number of write operations=29
Map-Reduce Framework
Map input records=2069
Map output records=24
Map output bytes=590
Map output materialized bytes=513
Input split bytes=3534
Combine input records=24
Combine output records=13
Spilled Records=13
Failed Shuffles=0
Merged Map outputs=0
GC time elapsed (ms)=1579
Total committed heap usage (bytes)=4616384512
File Input Format Counters
Bytes Read=76867
17/04/11 14:15:58 INFO jvm.JvmMetrics: Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized
17/04/11 14:15:58 INFO input.FileInputFormat: Total input paths to process : 0
17/04/11 14:15:58 INFO mapreduce.JobSubmitter: number of splits:0
17/04/11 14:15:58 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_local1820796076_0002
17/04/11 14:15:58 INFO mapreduce.Job: The url to track the job: http://localhost:8080/
17/04/11 14:15:58 INFO mapreduce.Job: Running job: job_local1820796076_0002
17/04/11 14:15:58 INFO mapred.LocalJobRunner: OutputCommitter set in config null
17/04/11 14:15:58 INFO output.FileOutputCommitter: File Output Committer Algorithm version is 1
17/04/11 14:15:58 INFO mapred.LocalJobRunner: OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter
17/04/11 14:15:58 INFO mapred.LocalJobRunner: Waiting for map tasks
17/04/11 14:15:58 INFO mapred.LocalJobRunner: map task executor complete.
17/04/11 14:15:58 INFO mapred.LocalJobRunner: Waiting for reduce tasks
17/04/11 14:15:58 INFO mapred.LocalJobRunner: Starting task: attempt_local1820796076_0002_r_000000_0
17/04/11 14:15:58 INFO output.FileOutputCommitter: File Output Committer Algorithm version is 1
17/04/11 14:15:58 INFO mapred.Task: Using ResourceCalculatorProcessTree : [ ]
17/04/11 14:15:58 INFO mapred.ReduceTask: Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@259b8adf
17/04/11 14:15:58 INFO reduce.MergeManagerImpl: MergerManager: memoryLimit=363285696, maxSingleShuffleLimit=90821424, mergeThreshold=239768576, ioSortFactor=10, memToMemMergeOutputsThreshold=10
17/04/11 14:15:58 INFO reduce.EventFetcher: attempt_local1820796076_0002_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events
17/04/11 14:15:58 INFO reduce.EventFetcher: EventFetcher is interrupted.. Returning
17/04/11 14:15:58 INFO mapred.LocalJobRunner:
17/04/11 14:15:58 INFO reduce.MergeManagerImpl: finalMerge called with 0 in-memory map-outputs and 0 on-disk map-outputs
17/04/11 14:15:58 INFO reduce.MergeManagerImpl: Merging 0 files, 0 bytes from disk
17/04/11 14:15:58 INFO reduce.MergeManagerImpl: Merging 0 segments, 0 bytes from memory into reduce
17/04/11 14:15:58 INFO mapred.Merger: Merging 0 sorted segments
17/04/11 14:15:58 INFO mapred.Merger: Down to the last merge-pass, with 0 segments left of total size: 0 bytes
17/04/11 14:15:58 INFO mapred.LocalJobRunner:
17/04/11 14:15:58 INFO Configuration.deprecation: mapred.skip.on is deprecated. Instead, use mapreduce.job.skiprecords
17/04/11 14:15:58 INFO mapred.Task: Task:attempt_local1820796076_0002_r_000000_0 is done. And is in the process of committing
17/04/11 14:15:58 INFO mapred.LocalJobRunner:
17/04/11 14:15:58 INFO mapred.Task: Task attempt_local1820796076_0002_r_000000_0 is allowed to commit now
17/04/11 14:15:58 INFO output.FileOutputCommitter: Saved output of task 'attempt_local1820796076_0002_r_000000_0' to hdfs://localhost:9000/user/utente/output/_temporary/0/task_local1820796076_0002_r_000000
17/04/11 14:15:58 INFO mapred.LocalJobRunner: reduce > reduce
17/04/11 14:15:58 INFO mapred.Task: Task 'attempt_local1820796076_0002_r_000000_0' done.
17/04/11 14:15:58 INFO mapred.LocalJobRunner: Finishing task: attempt_local1820796076_0002_r_000000_0
17/04/11 14:15:58 INFO mapred.LocalJobRunner: reduce task executor complete.
17/04/11 14:15:59 INFO mapreduce.Job: Job job_local1820796076_0002 running in uber mode : false
17/04/11 14:15:59 INFO mapreduce.Job: map 0% reduce 100%
17/04/11 14:15:59 INFO mapreduce.Job: Job job_local1820796076_0002 completed successfully
17/04/11 14:15:59 INFO mapreduce.Job: Counters: 29
File System Counters
FILE: Number of bytes read=657731
FILE: Number of bytes written=1171699
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=76867
HDFS: Number of bytes written=0
HDFS: Number of read operations=68
HDFS: Number of large read operations=0
HDFS: Number of write operations=5
Map-Reduce Framework
Combine input records=0
Combine output records=0
Reduce input groups=0
Reduce shuffle bytes=0
Reduce input records=0
Reduce output records=0
Spilled Records=0
Shuffled Maps =0
Failed Shuffles=0
Merged Map outputs=0
GC time elapsed (ms)=0
Total committed heap usage (bytes)=153624576
Shuffle Errors
BAD_ID=0
CONNECTION=0
IO_ERROR=0
WRONG_LENGTH=0
WRONG_MAP=0
WRONG_REDUCE=0
File Output Format Counters
Bytes Written=0
我不知道出了什么问题...... 我的java版本是（oracle版本）：
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
和Hadoop版本是2.7.3。请有人帮帮我吗？
更新1：
我格式化了系统并运行命令：
bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar grep input/hadoop output 'dfs[a-z.]+'
我使用 input / hadoop 而不是输入，但我有这个错误：
17/04/12 14:38:13 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
17/04/12 14:38:13 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
17/04/12 14:38:14 INFO mapreduce.JobSubmitter: Cleaning up the staging area file:/tmp/hadoop-utente/mapred/staging/utente1761874612/.staging/job_local1761874612_0001
org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does not exist: hdfs://localhost:9000/user/utente/input/hadoop
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.singleThreadedListStatus(FileInputFormat.java:323)
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:265)
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:387)
at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:301)
at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:318)
at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:196)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308)
at org.apache.hadoop.examples.Grep.run(Grep.java:78)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.hadoop.examples.Grep.main(Grep.java:103)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71)
at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)
at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74)
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.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
我认为我有一些配置问题，但不知道在哪里