Ajay Kumar created HDFS-12942:
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Summary: bug in FSDataSetImpl#moveBlock
Key: HDFS-12942
URL: https://issues.apache.org/jira/browse/HDFS-12942
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Ajay Kumar
Assignee: Ajay Kumar
FSDataSetImpl#moveBlock works in following following 3 steps:
first creates a replicaInfo object
calls finalizeReplica to finalize it.
Calls removeOldReplica to remove oldReplica.
A client can potentially append to the old replica between step 1 and 2.
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