stack created HBASE-19645:
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Summary: Add global barrier for offheap usage
Key: HBASE-19645
URL: https://issues.apache.org/jira/browse/HBASE-19645
Project: HBase
Issue Type: Task
Reporter: stack
See discussion at the end of HBASE-16747. In synopsis, we do not have a global
limit for offheap usage; we do no global accounting. There are the offheap
buffers, short-circuit read buffers, offheap memstores, etc. Ideally, as for
onheap, when we approach threshold, we'd bring on flushing to clear out offheap
usage or make use of onheap. TODO.
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