格式化namenode，报io异常，请大神帮忙看一下

柯南爱上指针 2017-10-28 10:11:44

java.io.IOException: Cannot create directory /usr/local/hadoop/hdpdata/dfs/name/current
at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:334)
at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:546)
at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:567)
at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:148)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:899)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1310)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1424)
17/10/28 18:01:20 FATAL namenode.NameNode: Exception in namenode join
java.io.IOException: Cannot create directory /usr/local/hadoop/hdpdata/dfs/name/current
at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:334)
at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:546)
at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:567)
at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:148)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:899)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1310)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1424)
17/10/28 18:01:20 INFO util.ExitUtil: Exiting with status 1
17/10/28 18:01:20 INFO namenode.NameNode: SHUTDOWN_MSG:

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柯南爱上指针 2017-10-28

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http://blog.csdn.net/abcjennifer/article/details/22393197 参考这个大神的解决方案 ERROR namenode.NameNode: java.io.IOException: Cannot create directory /export/home/dfs/name/current ERROR namenode.NameNode: java.io.IOException: Cannot remove current directory: /usr/local/hadoop/hdfsconf/name/current 原因是没有设置 /usr/hadoop/tmp 的权限没有设置，将之改为： sudo chmod -R a+w /usr/local/hadoop 经测试有效