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hadoop2.2运行mapreduce（wordcount）问题总结

pig2 2014-5-15 02:35:12 发表于 总结型 [显示全部楼层] 只看大图 回帖奖励 阅读模式 关闭右栏 39 201663
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本帖最后由 pig2 于 2014-5-15 16:46 编辑
问题导读：
1.出现Not a valid JAR:可能原因是什么？
2.运行wordcount，路径不正确会报什么错误？
3.一旦输入数据丢失，mapreduce正在运行，会出现什么错误？





此篇是在hadoop2完全分布式最新高可靠安装文档

hadoop2.X使用手册1：通过web端口查看主节点、slave1节点及集群运行状态

hadoop2.X使用手册2：如何运行自带wordcount基础上做的一个总结

这里对运行mapreduce，做一个问题汇总：第一个问题：Not a valid JAR:
下面举例，对里面的内容分析：
  1. hadoop jar  /hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar wordcount /data/wordcount /output/wordcount
复制代码

hadoop-mapreduce-examples-2.2.0.jar 位于下面路径中，所以如果路径不对会报如下错误：
  1. Not a valid JAR: /hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar
复制代码


weizhi.jpg


那么正确写法为：
hadoop jar /usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar wordcount /data/wordcount /output/wordcount

同时要注意输入输出路径不正确也有可能会报这个错误,还有另外一种就是你的包真的无效了。

第二个问题：Could not complete /tmp/hadoop-yarn/staging/job_1400084979891_0001/job.jar retrying...
这里不断进行尝试，错误表现如下：
  1. Could not complete /tmp/hadoop-yarn/staging/yonghuming/.staging/job_1400084979891_0001/job.jar retrying...
复制代码
解决方法：

出上面问题是因为集群处于安全模式，（集群格式化之后，一般会处于安全模式，所以这时候运行mapredcue，最好先检查一下集群模式）
  1. /hadoop dfsadmin -safemode leave
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第三个问题：Could not obtain block: BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002
对于上面错误很是不能保存block，但是奇怪的172.16.77.15，并没有挂掉。错误如下：
  1. hadoop jar /usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar wordcount /data/wordcount /output/wordcount

  2. 14/05/14 09:38:55 INFO client.RMProxy: Connecting to ResourceManager at master/172.16.77.15:8032

  3. 14/05/14 09:38:56 INFO input.FileInputFormat: Total input paths to process : 1

  4. 14/05/14 09:38:56 INFO mapreduce.JobSubmitter: number of splits:1

  5. 14/05/14 09:38:56 INFO Configuration.deprecation: user.name is deprecated. Instead, use mapreduce.job.user.name

  6. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar

  7. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.output.value.class is deprecated. Instead, use mapreduce.job.output.value.class

  8. 14/05/14 09:38:56 INFO Configuration.deprecation: mapreduce.combine.class is deprecated. Instead, use mapreduce.job.combine.class

  9. 14/05/14 09:38:56 INFO Configuration.deprecation: mapreduce.map.class is deprecated. Instead, use mapreduce.job.map.class

  10. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.job.name is deprecated. Instead, use mapreduce.job.name

  11. 14/05/14 09:38:56 INFO Configuration.deprecation: mapreduce.reduce.class is deprecated. Instead, use mapreduce.job.reduce.class

  12. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.input.dir is deprecated. Instead, use mapreduce.input.fileinputformat.inputdir

  13. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.output.dir is deprecated. Instead, use mapreduce.output.fileoutputformat.outputdir

  14. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps

  15. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.output.key.class is deprecated. Instead, use mapreduce.job.output.key.class

  16. 14/05/14 09:38:56 INFO Configuration.deprecation: mapred.working.dir is deprecated. Instead, use mapreduce.job.working.dir

  17. 14/05/14 09:38:57 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1400084979891_0002

  18. 14/05/14 09:38:58 INFO impl.YarnClientImpl: Submitted application application_1400084979891_0002 to ResourceManager at master/172.16.77.15:8032

  19. 14/05/14 09:38:58 INFO mapreduce.Job: The url to track the job: http://master:8088/proxy/application_1400084979891_0002/

  20. 14/05/14 09:38:58 INFO mapreduce.Job: Running job: job_1400084979891_0002

  21. 14/05/14 09:39:19 INFO mapreduce.Job: Job job_1400084979891_0002 running in uber mode : false

  22. 14/05/14 09:39:19 INFO mapreduce.Job:  map 0% reduce 0%

  23. 14/05/14 09:40:12 INFO mapreduce.Job:  map 100% reduce 0%

  24. 14/05/14 09:40:12 INFO mapreduce.Job: Task Id : attempt_1400084979891_0002_m_000000_0, Status : FAILED

  25. Error: org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block: BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 

  26. 

  27. file=/data/wordcount/inputWord

  28.         at org.apache.hadoop.hdfs.DFSInputStream.chooseDataNode(DFSInputStream.java:838)

  29.         at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:526)

  30.         at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:749)

  31.         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:793)

  32.         at java.io.DataInputStream.read(DataInputStream.java:100)

  33.         at org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:211)

  34.         at org.apache.hadoop.util.LineReader.readLine(LineReader.java:174)

  35.         at org.apache.hadoop.mapreduce.lib.input.LineRecordReader.nextKeyValue(LineRecordReader.java:164)

  36.         at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:532)

  37.         at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)

  38.         at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)

  39.         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)

  40.         at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)

  41.         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:339)

  42.         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162)

  43.         at java.security.AccessController.doPrivileged(Native Method)

  44.         at javax.security.auth.Subject.doAs(Subject.java:415)

  45.         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)

  46.         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157)

  47. 

  48. 14/05/14 09:40:14 INFO mapreduce.Job:  map 0% reduce 0%

  49. 14/05/14 09:41:09 INFO mapreduce.Job: Task Id : attempt_1400084979891_0002_m_000000_1, Status : FAILED

  50. Error: org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block: BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 

  51. 

  52. file=/data/wordcount/inputWord

  53.         at org.apache.hadoop.hdfs.DFSInputStream.chooseDataNode(DFSInputStream.java:838)

  54.         at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:526)

  55.         at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:749)

  56.         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:793)

  57.         at java.io.DataInputStream.read(DataInputStream.java:100)

  58.         at org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:211)

  59.         at org.apache.hadoop.util.LineReader.readLine(LineReader.java:174)

  60.         at org.apache.hadoop.mapreduce.lib.input.LineRecordReader.nextKeyValue(LineRecordReader.java:164)

  61.         at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:532)

  62.         at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)

  63.         at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)

  64.         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)

  65.         at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)

  66.         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:339)

  67.         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162)

  68.         at java.security.AccessController.doPrivileged(Native Method)

  69.         at javax.security.auth.Subject.doAs(Subject.java:415)

  70.         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)

  71.         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157)

  72. 

  73. 14/05/14 09:41:33 INFO mapreduce.Job: Task Id : attempt_1400084979891_0002_m_000000_2, Status : FAILED

  74. Error: org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block: BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 

  75. 

  76. file=/data/wordcount/inputWord

  77.         at org.apache.hadoop.hdfs.DFSInputStream.chooseDataNode(DFSInputStream.java:838)

  78.         at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:526)

  79.         at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:749)

  80.         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:793)

  81.         at java.io.DataInputStream.read(DataInputStream.java:100)

  82.         at org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:211)

  83.         at org.apache.hadoop.util.LineReader.readLine(LineReader.java:174)

  84.         at org.apache.hadoop.mapreduce.lib.input.LineRecordReader.nextKeyValue(LineRecordReader.java:164)

  85.         at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:532)

  86.         at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)

  87.         at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)

  88.         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)

  89.         at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)

  90.         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:339)

  91.         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162)

  92.         at java.security.AccessController.doPrivileged(Native Method)

  93.         at javax.security.auth.Subject.doAs(Subject.java:415)

  94.         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)

  95.         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157)

  96. 

  97. 14/05/14 09:41:59 INFO mapreduce.Job:  map 100% reduce 100%

  98. 14/05/14 09:41:59 INFO mapreduce.Job: Job job_1400084979891_0002 failed with state FAILED due to: Task failed task_1400084979891_0002_m_000000

  99. Job failed as tasks failed. failedMaps:1 failedReduces:0

  100. 

  101. 14/05/14 09:41:59 INFO mapreduce.Job: Counters: 5

  102.         Job Counters 

  103.                 Failed map tasks=4

  104.                 Launched map tasks=4

  105.                 Other local map tasks=4

  106.                 Total time spent by all maps in occupied slots (ms)=152716

  107.                 Total time spent by all reduces in occupied slots (ms)=0
复制代码
出现上面错误，你可以使用下面命令来进行检查：
  1. hadoop fs -text /data/wordcount/inputWord
复制代码
解释一下上面内容：
inputWord是上传文件的内容，如果查看不了，如下错误，说明说明DataNode失去连接，或则已经不能使用了


  1. hadoop fs -text /data/wordcount/inputWord

  2. 14/05/14 10:29:23 INFO hdfs.DFSClient: No node available for BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 file=/data/wordcount/inputWord

  3. 14/05/14 10:29:23 INFO hdfs.DFSClient: Could not obtain BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 from any node: java.io.IOException: No live nodes 

  4. 

  5. contain current block. Will get new block locations from namenode and retry...

  6. 14/05/14 10:29:23 WARN hdfs.DFSClient: DFS chooseDataNode: got # 1 IOException, will wait for 1611.781101650108 msec.

  7. 14/05/14 10:29:24 INFO hdfs.DFSClient: No node available for BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 file=/data/wordcount/inputWord

  8. 14/05/14 10:29:24 INFO hdfs.DFSClient: Could not obtain BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 from any node: java.io.IOException: No live nodes 

  9. 

  10. contain current block. Will get new block locations from namenode and retry...

  11. 14/05/14 10:29:24 WARN hdfs.DFSClient: DFS chooseDataNode: got # 2 IOException, will wait for 3653.3994797694913 msec.

  12. 14/05/14 10:29:28 INFO hdfs.DFSClient: No node available for BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 file=/data/wordcount/inputWord

  13. 14/05/14 10:29:28 INFO hdfs.DFSClient: Could not obtain BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 from any node: java.io.IOException: No live nodes 

  14. 

  15. contain current block. Will get new block locations from namenode and retry...

  16. 14/05/14 10:29:28 WARN hdfs.DFSClient: DFS chooseDataNode: got # 3 IOException, will wait for 6618.009385385317 msec.

  17. 14/05/14 10:29:35 WARN hdfs.DFSClient: DFS Read

  18. org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block: BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 file=/data/wordcount/inputWord

  19.         at org.apache.hadoop.hdfs.DFSInputStream.chooseDataNode(DFSInputStream.java:838)

  20.         at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:526)

  21.         at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:749)

  22.         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:793)

  23.         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:601)

  24.         at java.io.DataInputStream.readShort(DataInputStream.java:312)

  25.         at org.apache.hadoop.fs.shell.Display$Text.getInputStream(Display.java:130)

  26.         at org.apache.hadoop.fs.shell.Display$Cat.processPath(Display.java:98)

  27.         at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:306)

  28.         at org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:278)

  29.         at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:260)

  30.         at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:244)

  31.         at org.apache.hadoop.fs.shell.Command.processRawArguments(Command.java:190)

  32.         at org.apache.hadoop.fs.shell.Command.run(Command.java:154)

  33.         at org.apache.hadoop.fs.FsShell.run(FsShell.java:255)

  34.         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)

  35.         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)

  36.         at org.apache.hadoop.fs.FsShell.main(FsShell.java:305)

  37. text: Could not obtain block: BP-1908912651-172.16.77.15-1399795457132:blk_1073741826_1002 file=/data/wordcount/inputWord

复制代码












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已有(39)人评论

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long_ac 发表于 2015-5-9 18:14:09
roant 发表于 2015-1-18 12:19
1、你好，我现在遇到的问题和你描述的是一样的，在 running Job:....   之后就一直卡着不动了，进去后台 ...

我也遇到了任务一直在pending状态，不能往下运行，经过几天的倒腾的，总算解决了
现在把我的解决方法跟大家分享下，这几天在网上也查了很多资料，没有比较靠谱的回答
因为我设置了yarn.nodemanager.resource.memory-mb 这个的大小为1024MB，
即每个节点上的内存大小为1024，但是我运行的wordcount 需要的内存比我设置的要大，导致我的任务状态一直在pending状态中

如果你配置了yarn.nodemanager.resource.memory-mb这个配置项，你把值改大些，或者直接就用默认的然后再根据需要去调整

希望对纠结于这个问题的童鞋有帮助~~
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小鱼 发表于 2014-8-9 17:43:21
版大。那datanode失去连接怎么办啊？重新启动集群吗？
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pig2 发表于 2014-8-10 12:07:33
小鱼 发表于 2014-8-9 17:43
版大。那datanode失去连接怎么办啊？重新启动集群吗？
可以单独启动某个节点

  1. ./sbin/hadoop-daemon.sh start datanode slave1
复制代码

详细参考
如何寻找hadoop、hbase命令及单独启动hadoop datanode 及hbase regionserver

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Paul.Li 发表于 2014-9-29 19:14:42
版主，你好！我的运行之后一直处于pending状态，查日志也没有报错。不知道为什么？
[yarn@hadoop01 ~]$ hadoop jar /usr/local/yarn/Hadoop/hadoop-2.2.0/share/hadoop/mapreduce/sources/hadoop-mapreduce-examples-2.2.0-sources.jar org.apache.hadoop.examples.WordCount /data/wordcount /output/wordcount  
14/09/29 01:58:48 INFO client.RMProxy: Connecting to ResourceManager at hadoop01/192.168.232.128:8032
14/09/29 01:58:49 INFO input.FileInputFormat: Total input paths to process : 1
14/09/29 01:58:49 INFO mapreduce.JobSubmitter: number of splits:1
14/09/29 01:58:49 INFO Configuration.deprecation: user.name is deprecated. Instead, use mapreduce.job.user.name
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.output.value.class is deprecated. Instead, use mapreduce.job.output.value.class
14/09/29 01:58:49 INFO Configuration.deprecation: mapreduce.combine.class is deprecated. Instead, use mapreduce.job.combine.class
14/09/29 01:58:49 INFO Configuration.deprecation: mapreduce.map.class is deprecated. Instead, use mapreduce.job.map.class
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.job.name is deprecated. Instead, use mapreduce.job.name
14/09/29 01:58:49 INFO Configuration.deprecation: mapreduce.reduce.class is deprecated. Instead, use mapreduce.job.reduce.class
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.input.dir is deprecated. Instead, use mapreduce.input.fileinputformat.inputdir
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.output.dir is deprecated. Instead, use mapreduce.output.fileoutputformat.outputdir
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.output.key.class is deprecated. Instead, use mapreduce.job.output.key.class
14/09/29 01:58:49 INFO Configuration.deprecation: mapred.working.dir is deprecated. Instead, use mapreduce.job.working.dir
14/09/29 01:58:50 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1411980196862_0003
14/09/29 01:58:50 INFO impl.YarnClientImpl: Submitted application application_1411980196862_0003 to ResourceManager at hadoop01/192.168.232.128:8032
14/09/29 01:58:50 INFO mapreduce.Job: The url to track the job: http://hadoop01:8088/proxy/application_1411980196862_0003/
14/09/29 01:58:50 INFO mapreduce.Job: Running job: job_1411980196862_0003
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admin 发表于 2014-9-29 21:12:03
Paul.Li 发表于 2014-9-29 19:14
版主，你好！我的运行之后一直处于pending状态，查日志也没有报错。不知道为什么？
[yarn@hadoop01 ~]$ ha ...
离开安全模式了吗？
看看内存情况
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howtodown 发表于 2014-9-29 21:15:51
Paul.Li 发表于 2014-9-29 19:14
版主，你好！我的运行之后一直处于pending状态，查日志也没有报错。不知道为什么？
[yarn@hadoop01 ~]$ ha ...
你wordcount的内容是什么，也就是输入数据，不行就多等会看看。
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Paul.Li 发表于 2014-9-29 23:32:07
howtodown 发表于 2014-9-29 21:15
你wordcount的内容是什么，也就是输入数据，不行就多等会看看。

输入数据如下：
[yarn@hadoop01 ~]$ hadoop fs -text /data/wordcount/inputWord
hello Paul.Li
hello hadoop01
hello hadoop02
hello hadoop03
hello hadoop04
Paul.Li first
[yarn@hadoop01 ~]$
等了很长时间还是不行，记得以前测试1.2.1版本，好像运行几分钟就出来结果了。

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admin 发表于 2014-9-29 23:34:56
Paul.Li 发表于 2014-9-29 23:32
输入数据如下：
[yarn@hadoop01 ~]$ hadoop fs -text /data/wordcount/inputWord
hello Paul.Li
输入路径错误，按照下面格式：

hadoop jar /usr/local/yarn/Hadoop/hadoop-2.2.0/share/hadoop/mapreduce/sources/hadoop-mapreduce-examples-2.2.0-sources.jar org.apache.hadoop.examples.WordCount /data/wordcount/inputWord /output/wordcount

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Paul.Li 发表于 2014-9-29 23:50:26
admin 发表于 2014-9-29 23:34
输入路径错误，按照下面格式：

hadoop jar /usr/local/yarn/Hadoop/hadoop-2.2.0/share/hadoop/mapredu ...

还是不对，应该不是这个问题。我明天重装下试试。
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howtodown 发表于 2014-9-30 17:26:55
Paul.Li 发表于 2014-9-29 23:50
还是不对，应该不是这个问题。我明天重装下试试。
先看看进程是否全，仔细检查输入输出路径
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