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From "Hudson (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 Mon, 22 Jun 2015 06:22:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14595413#comment-14595413
] 

Hudson commented on HBASE-13933:
--------------------------------

FAILURE: Integrated in HBase-0.98-on-Hadoop-1.1 #987 (See [https://builds.apache.org/job/HBase-0.98-on-Hadoop-1.1/987/])
HBASE-13933 - DBE's seekBefore with tags corrupts the tag's offset (ramkrishna: rev 213458b771fb6b91357034c826cc6030ccc0e02d)
* hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekTo.java
* hbase-common/src/main/java/org/apache/hadoop/hbase/io/encoding/BufferedDataBlockEncoder.java


> 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
>             Fix For: 2.0.0, 0.98.14, 1.0.2, 1.2.0, 1.1.1, 1.3.0
>
>         Attachments: HBASE-13933.patch, HBASE-13933_0.98.patch, HBASE-13933_2.patch,
HBASE-13933_branch-1.1.patch, HBASE-13993_1.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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