Chen Liang created HDFS-13699:
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Summary: Add DFSClient sending handshake token to DataNode, and
allow DataNode overwrite downstream QOP
Key: HDFS-13699
URL: https://issues.apache.org/jira/browse/HDFS-13699
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Chen Liang
Assignee: Chen Liang
Given the other Jiras under HDFS-13541, this Jira is to allow DFSClient to
redirect the encrypt secret to DataNode. The encrypted message is the QOP that
client and NameNode have used. DataNode decrypts the message and enforce the
QOP for the client connection. Also, this Jira will also include overwriting
downstream QOP, as mentioned in the HDFS-13541 design doc. Namely, this is to
allow inter-DN QOP that is different from client-DN QOP.
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