Kihwal Lee created HDFS-6148:
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Summary: LeaseManager crashes while initiating block recovery
Key: HDFS-6148
URL: https://issues.apache.org/jira/browse/HDFS-6148
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 2.4.0
Reporter: Kihwal Lee
Priority: Blocker
While running branch-2.4, the LeaseManager crashed with an NPE. This does not
always happen on block recovery.
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Exception in thread
"org.apache.hadoop.hdfs.server.namenode.LeaseManager$Monitor@5d66b728"
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoUnderConstruction$ReplicaUnderConstruction.isAlive(BlockInfoUnderConstruction.java:121)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoUnderConstruction.initializeBlockRecovery(BlockInfoUnderConstruction.java:286)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.internalReleaseLease(FSNamesystem.java:3746)
at
org.apache.hadoop.hdfs.server.namenode.LeaseManager.checkLeases(LeaseManager.java:474)
at
org.apache.hadoop.hdfs.server.namenode.LeaseManager.access$900(LeaseManager.java:68)
at
org.apache.hadoop.hdfs.server.namenode.LeaseManager$Monitor.run(LeaseManager.java:411)
at java.lang.Thread.run(Thread.java:722)
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