[hbase] Scanning, a region can let out a row that its not supposed to have
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Key: HADOOP-2592
URL: https://issues.apache.org/jira/browse/HADOOP-2592
Project: Hadoop
Issue Type: Bug
Components: contrib/hbase
Reporter: stack
Priority: Minor
Bryan's lazy cache patch was provoking a strange issue in TestTableIndex when
flush size was small -- 64k instead of 1MB -- where a scan was returning random
rows twice, w/ the second incidence coming out of a region whose range
shouldn't even contain the row.
After study, HalfMapFiles serving the top half of a parent region down in the
daughter, can have rows in excess of the region endkey; scanning, the call to
next will just return these rows w/ consideration of whether beyond region
endkey.
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