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https://issues.apache.org/jira/browse/PHOENIX-5344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16864320#comment-16864320
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Akshita Malhotra commented on PHOENIX-5344:
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Thanks [~gjacoby]. Assigning this to myself for now, will update by early next
week after checking the scope and feasibility.
> MapReduce Jobs Over Salted Snapshots Give Wrong Results
> -------------------------------------------------------
>
> Key: PHOENIX-5344
> URL: https://issues.apache.org/jira/browse/PHOENIX-5344
> Project: Phoenix
> Issue Type: Bug
> Reporter: Geoffrey Jacoby
> Assignee: Akshita Malhotra
> Priority: Major
>
> I'm modifying an existing MapReduce job to use Phoenix's MapReduce / HBase
> snapshot integration. When testing, I noticed that existing tests that had
> previously worked for this job when running on salted Phoenix tables began to
> fail when running on a snapshot of those tables. They pass when running
> identical logic against the live table. Unsalted tables give the same,
> correct result whether running against a live table or a snapshot.
> The symptom on the salted snapshots is that the row count is way too high (a
> factor of about 7x), but the exact amount appears non-deterministic.
> My working theory is that somewhere the snapshot MapReduce integration for
> Phoenix sets up the scans improperly for salted tables.
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