Chris Nauroth created HDFS-11063:
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Summary: Set NameNode RPC server handler thread name with more
descriptive information about the RPC call.
Key: HDFS-11063
URL: https://issues.apache.org/jira/browse/HDFS-11063
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Reporter: Chris Nauroth
We often run {{jstack}} on a NameNode process as a troubleshooting step if it
is suffering high load or appears to be hanging. By reading the stack trace,
we can identify if a caller is blocked inside an expensive operation. This
would be even more helpful if we updated the RPC server handler thread name
with more descriptive information about the RPC call. This could include the
calling user, the called RPC method, and the most significant argument to that
method (most likely the path).
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