WenjingLiu created HDFS-17752:
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Summary: Host2DatanodeMap will not update when re-register a node
with a different hostname
Key: HDFS-17752
URL: https://issues.apache.org/jira/browse/HDFS-17752
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Reporter: WenjingLiu
We have HBase RegionServer running, if a DataNode is re-registered with a
different hostname, RegionServer will always treat this type of DataNode as a
DeadNode, because host2DatanodeMap is not updated accordingly.
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