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From "Matt Corgan (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-5720) HFileDataBlockEncoderImpl uses wrong header size when reading HFiles with no checksums
Date Thu, 05 Apr 2012 02:15:18 GMT
HFileDataBlockEncoderImpl uses wrong header size when reading HFiles with no checksums
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                 Key: HBASE-5720
                 URL: https://issues.apache.org/jira/browse/HBASE-5720
             Project: HBase
          Issue Type: Bug
          Components: io, regionserver
    Affects Versions: 0.94.0
            Reporter: Matt Corgan
            Priority: Blocker
             Fix For: 0.94.0


When reading a .92 HFile without checksums, encoding it, and storing in the block cache, the
HFileDataBlockEncoderImpl always allocates a dummy header appropriate for checksums even though
there are none.  This corrupts the byte[].

Attaching a patch that allocates a DUMMY_HEADER_NO_CHECKSUM in that case which I think is
the desired behavior.

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