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  1. Hadoop HDFS
  2. HDFS-6148

LeaseManager crashes while initiating block recovery

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Duplicate
    • Affects Version/s: 2.3.0
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Target Version/s:

      Description

      While running branch-2.4, the LeaseManager crashed with an NPE. This does not always happen on block recovery.

      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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              • Assignee:
                kihwal Kihwal Lee
                Reporter:
                kihwal Kihwal Lee
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                Dates

                • Created:
                  Updated:
                  Resolved: