midkey() returns 12 extra bytes in HFile v2
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Key: HBASE-5224
URL: https://issues.apache.org/jira/browse/HBASE-5224
Project: HBase
Issue Type: Bug
Reporter: Mikhail Bautin
Assignee: Mikhail Bautin
Priority: Minor
HFile's midkey() is implemented as the first key of the middle index block both
HFile v1 and HFile v2 (the middle leaf index block is used in v2). However, in
HFile v2 midkey() currently grabs 12 more bytes from the next leaf index entry,
representing the offset and compressed size of the data block pointed to by
that entry. While this probably does not affect the interpretation of the
returned buffer as an HBase key (the last 12 bytes are simply discarded), this
has to be cleaned up.
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