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From "Guanghao Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18295) The result contains the cells across different rows
Date Thu, 06 Jul 2017 01:53:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075783#comment-16075783
] 

Guanghao Zhang commented on HBASE-18295:
----------------------------------------

[~chia7712] Thanks. After HBASE-17125, if a cell be included by versions check, it can't be
skipped by flusher, too. So even after filter, we return SEEK_NEXT_ROW or SEEK_NEXT_USING_HINT,
there is no chance to change the top cell. You mean it, right?

>  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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