Change hfile scanner seek to find wanted key or the one AFTER rather than
BEFORE as it currently does
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Key: HBASE-1764
URL: https://issues.apache.org/jira/browse/HBASE-1764
Project: Hadoop HBase
Issue Type: Improvement
Reporter: stack
Fix For: 0.21.0
Working on new getClosestAtOrBefore in HBASE-1761, the way hfile scanner works
where it gets the asked for key or the one just before makes for our doing more
work than we should. See the code in Store where we want to get to first
element in row. We have to go to the row before and then walk forward skipping
the item that is in row before.
Consider flipping catalog tables to be regions by end-key rather than start-key
at same time (RE: conversation had on the saturday night at the SUSF hackathon).
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