Devaraj Das created HBASE-13375:
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Summary: Provide HBase superuser higher priority over other users
in the RPC handling
Key: HBASE-13375
URL: https://issues.apache.org/jira/browse/HBASE-13375
Project: HBase
Issue Type: Improvement
Components: rpc
Reporter: Devaraj Das
Fix For: 1.1.0
HBASE-13351 annotates Master RPCs so that RegionServer RPCs are treated with a
higher priority compared to user RPCs (and they are handled by a separate set
of handlers, etc.). It may be good to stretch this to users too - hbase
superuser (configured via hbase.superuser) gets higher priority over other
users in the RPC handling. That way the superuser can always perform
administrative operations on the cluster even if all the normal priority
handlers are occupied (for example, we had a situation where all the master's
handlers were tied up with many simultaneous createTable RPC calls from
multiple users and the master wasn't able to perform any operations initiated
by the admin). (Discussed this some with [~enis] and [~elserj]).
Does this make sense to others?
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