Kihwal Lee created HDFS-5083:
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Summary: Update the HDFS compatibility version range
Key: HDFS-5083
URL: https://issues.apache.org/jira/browse/HDFS-5083
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 2.1.0-beta, 2.3.0
Reporter: Kihwal Lee
Priority: Blocker
Since we have made incompatible changes including RPCv9, the following needs to
be updated. For branch-2 and branch-2.*, I think it needs to be set to 2.1.0.
DFS_NAMENODE_MIN_SUPPORTED_DATANODE_VERSION_DEFAULT
DFS_DATANODE_MIN_SUPPORTED_NAMENODE_VERSION_DEFAULT
The rpc change will make dn registration fail, so it won't get to the actual
version check, but this still needs to be set correctly, since we are aiming
2.1.0 to be api/protocol stable.
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