异常笔记：Hadoop异常 namenode.NameNode: Encountered exception during format

最新推荐文章于 2022-10-24 20:52:11 发布

转载最新推荐文章于 2022-10-24 20:52:11 发布 · 3.5k 阅读

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原文链接：http://www.cnblogs.com/tocode/p/10584242.html

文章标签：

#大数据 #java

本文记录了Hadoop NameNode启动过程中遇到的问题及解决方法。主要问题是无法删除当前目录导致的启动失败，通过调整文件权限最终解决了该问题。

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 00:53:47,977 WARN namenode.NameNode: Encountered exception during format: 
java.io.IOException: Cannot remove current directory: /home/hadoop/tmp/dfs/name/current
    at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:433)
    at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:579)
    at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:601)
    at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:173)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1190)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1631)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1741)
 00:53:47,979 ERROR namenode.NameNode: Failed to start namenode.
java.io.IOException: Cannot remove current directory: /home/hadoop/tmp/dfs/name/current
    at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:433)
    at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:579)
    at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:601)
    at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:173)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1190)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1631)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1741)
 00:53:47,980 INFO util.ExitUtil: Exiting with status 1: java.io.IOException: Cannot remove current directory: /home/hadoop/tmp/dfs/name/current
 00:53:47,989 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at localhost/127.0.0.1
************************************************************/