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HBase, mail # user - NameNode of Hadoop Crash?
bhushan.kandalkar
2013-03-18, 06:59
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RE: NameNode of Hadoop Crash?
Anoop Sam John 2013-03-19, 03:03
Can you ask this question in HDFS user group pls?

-Anoop-
________________________________________
From: bhushan.kandalkar [[EMAIL PROTECTED]]
Sent: Monday, March 18, 2013 12:29 PM
To: [EMAIL PROTECTED]
Subject: NameNode of Hadoop Crash?

Hi Following is the error log in Nemenode log file:

2013-03-18 11:11:40,910 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Registered
FSNamesystemStateMBean and NameNodeMXBean
2013-03-18 11:11:40,928 INFO
org.apache.hadoop.hdfs.server.namenode.NameNode: Caching file names occuring
more than 10 times
2013-03-18 11:11:40,936 INFO org.apache.hadoop.hdfs.server.common.Storage:
Number of files = 156
2013-03-18 11:11:40,958 INFO org.apache.hadoop.hdfs.server.common.Storage:
Number of files under construction = 0
2013-03-18 11:11:40,958 INFO org.apache.hadoop.hdfs.server.common.Storage:
Image file of size 23325 loaded in 0 seconds.
2013-03-18 11:11:40,962 ERROR
org.apache.hadoop.hdfs.server.namenode.NameNode:
java.lang.NullPointerException
        at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1099)
        at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1111)
        at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.addNode(FSDirectory.java:1014)
        at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedAddFile(FSDirectory.java:208)
        at
org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:629)
        at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSEdits(FSImage.java:1021)
        at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:839)

How to resolve it? I have restarted it many times but got same error.

Thanks in advance.
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