HDFS-16754. UnderConstruct file with completed but missed block should be able to recover lease #4840
+3
−2
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Description of PR
During looking into the logic of RecoverLease, I guess there is a bug:
RecoverLease just try to align all replicas of the last block of one UnderConstruct file.
So if the UC file with some completed blocks, which may missed all replicas, should be able to recoverLease.