Andrew Purtell created HBASE-11444:
--------------------------------------
Summary: Remove use of reflection in the User facade
Key: HBASE-11444
URL: https://issues.apache.org/jira/browse/HBASE-11444
Project: HBase
Issue Type: Improvement
Reporter: Andrew Purtell
Fix For: 0.99.0
The time we spend looking up a user's short name with User#getShortName in hot
security code paths is mostly spent in Class#getMethod, ~70%. This is only ~1%
of overall CPU time but is the bulk of time spent in AccessController#prePut.
Since HBase 1.0 is only going to support Hadoop 2, we can remove the use of
reflection and replace with direct calls to UserGroupInformation, or remove the
User facade and use UGI directly.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
