Regionservers should report detailed health to master; master should flag
troubled regionservers in UI
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Key: HBASE-1018
URL: https://issues.apache.org/jira/browse/HBASE-1018
Project: Hadoop HBase
Issue Type: New Feature
Components: master, regionserver
Reporter: Andrew Purtell
Fix For: 0.19.0
Regionservers should report detailed health to master. The master should flag
troubled regionservers in the UI.
The concern at the moment is primarily heap. Regionservers should report used,
committed, and max heap metrics in the periodic report. The master should flag
in the regionserver list on /master.jsp those regionservers where available
heap is below a configurable threshold.
The required changes to support this can be expanded/extended later to
implement more of the Service Historian idea (see HBASE-773).
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