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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8317) Seek returns wrong result with PREFIX_TREE Encoding
Date Fri, 12 Apr 2013 06:33:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629844#comment-13629844

Ted Yu commented on HBASE-8317:

The new test is a small test. I think we can keep it.
+    Random random = new Random();
Can a seed be used above ? Please also log the seed so that we can reproduce issue if this
test ever fails.
> Seek returns wrong result with PREFIX_TREE Encoding
> ---------------------------------------------------
>                 Key: HBASE-8317
>                 URL: https://issues.apache.org/jira/browse/HBASE-8317
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.95.0
>            Reporter: chunhui shen
>            Assignee: chunhui shen
>         Attachments: HBASE-8317-v1.patch, hbase-trunk-8317.patch, hbase-trunk-8317v3.patch
> TestPrefixTreeEncoding#testSeekWithFixedData from the patch could reproduce the bug.
> An example of the bug case:
> Suppose the following rows:
> 1.row3/c1:q1/
> 2.row3/c1:q2/
> 3.row3/c1:q3/
> 4.row4/c1:q1/
> 5.row4/c1:q2/
> After seeking the row 'row30', the expected peek KV is row4/c1:q1/, but actual is row3/c1:q1/.
> I just fix this bug case in the patch, 
> Maybe we can do more for other potential problems if anyone is familiar with the code

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