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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13933) DBE's seekBefore with tags corrupts the tag's offset information thus leading to incorrect results
Date Thu, 18 Jun 2015 16:22:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14592048#comment-14592048
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ramkrishna.s.vasudevan commented on HBASE-13933:
------------------------------------------------

Yes this happens when there is no TagCompression. I have a patch will upload after writing
some test case. 

> DBE's seekBefore with tags corrupts the tag's offset information thus leading to incorrect
results
> --------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-13933
>                 URL: https://issues.apache.org/jira/browse/HBASE-13933
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.0.0, 2.0.0, 1.0.1, 1.1.0, 0.98.13, 1.0.1.1, 1.1.0.1
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Critical
>         Attachments: HBASE-13933.patch
>
>
> The problem occurs with moveToPrevious() case and incase of tags we copy the previous
pointer's tag info to the current because already decoded the tags.
> Will check once again before I post other details.  I have a test case to reproduce the
problem. Found this while working with MultibyteBuffers and verified if this is present in
trunk - it is in all branches where we have tags compression (I suppose) will verify



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