HDFS-15160. branch-3.2. ReplicaMap, Disk Balancer, Directory Scanner and various FsDatasetImpl methods should use datanode readlock.#3200

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Hexiaoqiao merged 5 commits intoapache:branch-3.2from

amahussein:hdfs-15160-320

Sep 11, 2021

Commits on Sep 1, 2021

HDFS-15150. Introduce read write lock to Datanode. Contributed Stephen O'Donnell.

Stephen O'Donnell
authored and
amahussein
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HDFS-15160. ReplicaMap, Disk Balancer, Directory Scanner and various FsDatasetImpl methods should use datanode readlock. Contributed by Stephen O'Donnell.

Stephen O'Donnell
authored and
amahussein
committed
HDFS-15457. TestFsDatasetImpl fails intermittently (#2407)
amahussein
committed
HDFS-15818. Fix TestFsDatasetImpl.testReadLockCanBeDisabledByConfig. Contributed by Leon Gao (#2679)

LeonGao91
authored and
amahussein
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HDFS-15160. amend to fix javac error supressing unchecked warning
amahussein
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