Zhe Zhang created HDFS-9405:
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Summary: When starting a file, NameNode should generate EDEK in a
separate thread
Key: HDFS-9405
URL: https://issues.apache.org/jira/browse/HDFS-9405
Project: Hadoop HDFS
Issue Type: Improvement
Components: encryption, namenode
Affects Versions: 2.7.1
Reporter: Zhe Zhang
{{generateEncryptedDataEncryptionKey}} involves a non-trivial I/O operation to
the key provider, which could be slow or cause timeout. It should be done as a
separate thread so as to return a proper error message to the RPC caller.
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