个回答

• Kit_Ren

  2015-07-16 12:09:58

  hadoop环境变量没有配好。你可以试试在hadoop安装目录/bin 下执行，如果可以正常执行，那就是环境变量的问题。

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• weibo_胖子孙亮_0

  2015-09-14 19:06:33

  15/09/14 19:00:40 ERROR namenode.NameNode: java.io.IOException: Cannot create directory /hadoop/dfs/name/current

          at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:294)

          at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1337)

          at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1356)

          at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1261)

          at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1467)

          at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1488)

  
  

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• 龙黑子

  2015-07-28 18:52:58

  老师帮我看看，如果能可以的话，加我一下，真的很着急，好久了也没有把hadoop配好。我正常用namenode格式的报错了：

   namenode.FSNamesystem: isAccessTokenEnabled=false accessKeyUpdateInterval=0 min(s), accessTokenLifetime=0 min(s)

  15/07/28 18:42:05 INFO namenode.FSEditLog: dfs.namenode.edits.toleration.length = 0

  15/07/28 18:42:05 INFO namenode.NameNode: Caching file names occuring more than 10 times 

  15/07/28 18:42:06 ERROR namenode.NameNode: java.io.IOException: Cannot create directory /opt/hadoop/hadoop-1.2.1/tmp/dfs/name/current

  at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:294)

  at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1337)

  at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1356)

  at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1261)

  at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1467)

  at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1488)

  
  

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