Yongpan Liu created HDFS-16620:
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Summary: Improve msync performance by a separate RPC server
Key: HDFS-16620
URL: https://issues.apache.org/jira/browse/HDFS-16620
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Yongpan Liu
ClientProtocol#msync is invoked frequently in clusters where the Observer is
enabled. When NameNode is heavily loaded, the average response time of msync
increases, which can affect Observer Read efficiency. We can split out a
separate RPC server just like HDFS-9311.
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