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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9596) HFileContext defaults can lead to inconsistency with expectations of HFile block header sizing between readers and writers
Date Fri, 20 Sep 2013 17:03:51 GMT
Andrew Purtell created HBASE-9596:
-------------------------------------

             Summary: HFileContext defaults can lead to inconsistency with expectations of
HFile block header sizing between readers and writers
                 Key: HBASE-9596
                 URL: https://issues.apache.org/jira/browse/HBASE-9596
             Project: HBase
          Issue Type: Sub-task
            Reporter: Andrew Purtell
            Assignee: ramkrishna.s.vasudevan
            Priority: Minor


HFileContext defaults can lead to inconsistency with expectations of HFile block header sizing
between readers and writers. In HConstants the default block header is now the one including
checksum, but by default HFileContext has useHBaseChecksum set to false. If creating readers
and writers directly rather than going through HFile, you can end up with a writer producing
block headers including the checksum and a reader expecting headers without, leading to sad
results. Minor issue but worth looking at to avoid surprises.

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