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https://issues.apache.org/jira/browse/TAJO-47?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13644427#comment-13644427
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Jihoon Son commented on TAJO-47:
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Thanks for comments.
I'll fix the patch!
> RowFile has the duplicated initialization problem and unflipped ByteBuffer
> problem
> ----------------------------------------------------------------------------------
>
> Key: TAJO-47
> URL: https://issues.apache.org/jira/browse/TAJO-47
> Project: Tajo
> Issue Type: Bug
> Components: storage
> Reporter: Jihoon Son
> Assignee: Jihoon Son
> Attachments: TAJO-47.patch
>
>
> 1) Duplicated initialization problem
> FileScanner has the init() interface which is generally called by upper
> layers. The init() call in the constructor of RowFileScanner incurs the
> duplicated initialization problem.
> 2) Unflipped ByteBuffer problem
> RowFileScanner reads data from FSDataInputStream via the ByteBuffer
> interface. ByteBuffer should be flipped after every reads, but it is not
> flipped when FSDataInputStream does not return data anymore.
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