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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2014/12/19 20:57:15 UTC
[jira] [Created] (HBASE-12731) Heap occupancy based client pushback
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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