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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18295) The result contains the cells across different rows
Date Wed, 05 Jul 2017 16:27:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075037#comment-16075037
] 

ramkrishna.s.vasudevan commented on HBASE-18295:
------------------------------------------------

bq.There is a chance that the top cell will be changed if the filter return NEXT_ROW or SEEK_NEXT_USING_HINT.

Nice find [~chia7712]. Thanks for double checking it.

>  The result contains the cells across different rows
> ----------------------------------------------------
>
>                 Key: HBASE-18295
>                 URL: https://issues.apache.org/jira/browse/HBASE-18295
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Chia-Ping Tsai
>            Assignee: Chia-Ping Tsai
>            Priority: Blocker
>             Fix For: 3.0.0, 1.4.0, 1.3.2, 2.0.0-alpha-2
>
>         Attachments: HBASE-18295.branch-1.3.v0.patch, HBASE-18295.branch-1.v0.patch,
HBASE-18295.v0.patch, HBASE-18295.v1.patch, HBASE-18295.v2.patch
>
>
> From the [flaky dashboard|https://builds.apache.org/job/HBASE-Find-Flaky-Tests/lastSuccessfulBuild/artifact/dashboard.html]
> If we use the cell which won't be flushed into disk as the top cell to reopen the scanners,
the new top cell will change. If the new top cell is in different row, the matcher will reset,
and then matcher will accept the new top cell...
> The TestStore# testFlushBeforeCompletingScan reproduces the bug.



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