Secondary Name Node crash, NPE in edit log replay
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Key: HDFS-1002
URL: https://issues.apache.org/jira/browse/HDFS-1002
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 0.21.0
Reporter: ryan rawson
Fix For: 0.21.0
An NPE in SNN, the core of the message looks like yay so:
2010-02-25 11:54:05,834 ERROR
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode:
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1152)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1164)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.addNode(FSDirectory.java:1067)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedAddFile(FSDirectory.java:213)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadEditRecords(FSEditLog.java:511)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:401)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:368)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSEdits(FSImage.java:1172)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage.doMerge(SecondaryNameNode.java:594)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage.access$000(SecondaryNameNode.java:476)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doMerge(SecondaryNameNode.java:353)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doCheckpoint(SecondaryNameNode.java:317)
at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.run(SecondaryNameNode.java:219)
at java.lang.Thread.run(Thread.java:619)
This happens even if I restart SNN over and over again.
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