FAQ
Sometimes backup node/secondary name node stops with exception
--------------------------------------------------------------

Key: HDFS-2084
URL: https://issues.apache.org/jira/browse/HDFS-2084
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 0.21.0
Environment: FreeBSD
Reporter: Vitalii Tymchyshyn


2011-06-17 11:43:23,096 ERROR org.apache.hadoop.hdfs.server.namenode.Checkpointer: Throwable Exception in doCheckpoint:
java.lang.NullPointerException
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedSetTimes(FSDirectory.java:1765)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedSetTimes(FSDirectory.java:1753)
at org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadEditRecords(FSEditLog.java:708)
at org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:411)
at org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:378)
at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSEdits(FSImage.java:1209)
at org.apache.hadoop.hdfs.server.namenode.BackupStorage.loadCheckpoint(BackupStorage.java:158)
at org.apache.hadoop.hdfs.server.namenode.Checkpointer.doCheckpoint(Checkpointer.java:243)
at org.apache.hadoop.hdfs.server.namenode.Checkpointer.run(Checkpointer.java:141)


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