Owen O'Malley created HADOOP-18434:
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Summary: Proxy users do not share RPC connections
Key: HADOOP-18434
URL: https://issues.apache.org/jira/browse/HADOOP-18434
Project: Hadoop Common
Issue Type: Bug
Reporter: Owen O'Malley
Assignee: Owen O'Malley
When the Hive MetaStore uses Storage-Based Authorization, it needs to perform
checks against the NameNode as the query's user. Unfortunately, RPC's
ConnectionId uses the UGI's equal & hash functions, which check for the
subject's object equality.
Thus, we've seen the HMS spawn thousands of threads before they go idle and are
eventually closed. If the peak goes over 10k threads the HMS becomes unstable.
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