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https://issues.apache.org/jira/browse/HBASE-9596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13773256#comment-13773256
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ramkrishna.s.vasudevan commented on HBASE-9596:
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Andy,
The patch that i attached in the parent JIRA(latest one HBASe-8496_4) already
has this change.
> 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
> Attachments: 9596.patch
>
>
> 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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