RFile should store the key count in metadata
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Key: ACCUMULO-501
URL: https://issues.apache.org/jira/browse/ACCUMULO-501
Project: Accumulo
Issue Type: Improvement
Reporter: Eric Newton
Assignee: Eric Newton
Fix For: 1.5.0
BulkImport estimates the number of keys in a file to be zero. We store the
largest and smallest key in metadata, I think we can afford to store the key
count use it to provide an estimate when we load it into the tablet. Perhaps
if we know the start key is "a" and the end key is "z" and the tablets range is
"a->m" we can just estimate 50% of the key count.
When a bulk file fits completely in a range, the key count estimate will be
accurate.
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