NullPointerException in HeartbeatMonitor thread
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Key: HADOOP-1092
URL: https://issues.apache.org/jira/browse/HADOOP-1092
Project: Hadoop
Issue Type: Bug
Components: dfs
Affects Versions: 0.12.0
Reporter: Nigel Daley
Priority: Blocker
Fix For: 0.12.1
Running NNBench with latest trunk, I saw this NPE in the Namenode log:
Exception in thread "[EMAIL PROTECTED]" java.lang.NullPointerException
at
org.apache.hadoop.dfs.FSNamesystem.countContainingNodes(FSNamesystem.java:2506)
at org.apache.hadoop.dfs.FSNamesystem.access$000(FSNamesystem.java:52)
at
org.apache.hadoop.dfs.FSNamesystem$UnderReplicationBlocks.update(FSNamesystem.java:456)
at
org.apache.hadoop.dfs.FSNamesystem.removeStoredBlock(FSNamesystem.java:2242)
at
org.apache.hadoop.dfs.FSNamesystem.removeDatanode(FSNamesystem.java:1876)
at
org.apache.hadoop.dfs.FSNamesystem.heartbeatCheck(FSNamesystem.java:1958)
at
org.apache.hadoop.dfs.FSNamesystem$HeartbeatMonitor.run(FSNamesystem.java:1698)
at java.lang.Thread.run(Thread.java:619)
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