Jason Lowe created HADOOP-9734:
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Summary: Common RefreshUserMappingsProtocol and
GetUserMappingsProtocol implementation
Key: HADOOP-9734
URL: https://issues.apache.org/jira/browse/HADOOP-9734
Project: Hadoop Common
Issue Type: Improvement
Components: ipc
Affects Versions: 2.0.4-alpha
Reporter: Jason Lowe
Priority: Minor
Many of the Hadoop server daemons support the concept of refreshing user
mappings or getting the currently cached user-group mappings. Currently there
are protocol buffer definitions of RefreshUserMappingsProtocol and
GetUserMappingsProtocol in HDFS, but using it requires packages to depend upon
HDFS when they may otherwise have no reason to do so. We should move the
protocol buffer definitions and glue code to common for easier reuse.
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