Alert when heap is over committed
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Key: HBASE-3658
URL: https://issues.apache.org/jira/browse/HBASE-3658
Project: HBase
Issue Type: Improvement
Affects Versions: 0.90.1
Reporter: Jean-Daniel Cryans
Fix For: 0.92.0
Something I just witnessed, the block cache setting was at 70% but the max
global memstore size was at the default of 40% meaning that 110% of the heap
can potentially be "assigned" and then you need more heap to do stuff like
flushing and compacting.
We should run a configuration check that alerts the user when that happens and
maybe even refuse to start.
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