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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16578) Mob data loss after mob compaction and normal compcation
Date Thu, 08 Sep 2016 02:54:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15472539#comment-15472539
] 

Jingcheng Du commented on HBASE-16578:
--------------------------------------

Thanks for the test [~huaxiang].
{{StoreFile.SKIP_RESET_SEQ_ID}} is used to skip resetting the cell's seqId with the max seq
id of the hfiler in reading, this can avoid the chaos of the cells after the mob compaction.
Please let me know if you still have such an issue. Thanks.

> Mob data loss after mob compaction and normal compcation
> --------------------------------------------------------
>
>                 Key: HBASE-16578
>                 URL: https://issues.apache.org/jira/browse/HBASE-16578
>             Project: HBase
>          Issue Type: Bug
>          Components: mob
>    Affects Versions: 2.0.0
>            Reporter: huaxiang sun
>            Assignee: huaxiang sun
>         Attachments: TestMobCompaction.java
>
>
> I have a unittest case, which could explore the mob data loss issue. The root cause is
that with the following line:
> https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactor.java#L625
> It will make the old mob reference cell win during compaction.



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