Andrew Purtell created HBASE-12731:
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Summary: Heap occupancy based client pushback
Key: HBASE-12731
URL: https://issues.apache.org/jira/browse/HBASE-12731
Project: HBase
Issue Type: New Feature
Reporter: Andrew Purtell
Assignee: Andrew Purtell
If the heap occupancy of a RegionServer is beyond a configurable high water
mark (suggestions: 95%, 98%) then we should reject all user RPCs and only allow
administrative RPCs until occupancy has dropped below a configurable low water
mark (suggestions: 90%).
Implement building on the HBASE-5162 changes.
It might be expensive to check heap occupancy, in which case we can sample it
periodically with a chore and use the last known value in pushback
calculations.
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