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From "Karan Mehta (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-4997) Phoenix MR on snapshots can produce duplicate rows
Date Fri, 02 Nov 2018 21:20:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-4997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karan Mehta updated PHOENIX-4997:
---------------------------------
    Attachment: PHOENIX-4997.master.002.patch

> Phoenix MR on snapshots can produce duplicate rows
> --------------------------------------------------
>
>                 Key: PHOENIX-4997
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4997
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Karan Mehta
>            Assignee: Karan Mehta
>            Priority: Major
>             Fix For: 4.15.0, 5.1.0
>
>         Attachments: PHOENIX-4997.4.x-HBase-1.4.001.patch, PHOENIX-4997.master.001.patch,
PHOENIX-4997.master.002.patch
>
>
> Phoenix MR over snapshots uses TableSnapshotResultIterator and SnapshotScanner classes
for iterating/scanning over snapshots. They had been copied over from HBase classes TableSnapshotScanner
and ClientSideRegionScanner classes and modified according to Phoenix requirements. This
decision was taken since some of fields of these classes were private and hence it is not
possible to reuse them. HBASE-8369 is the main Jira.
> The framework had a bug which was fixed as part of HBASE-16011. However the fix was not
ported to Phoenix and hence Phoenix MR over snapshots still continues to have it. This Jira
is to fix that issue.
> FYI [~akshita.malhotra] 



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