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From "Alex Araujo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-3817) VerifyReplication using SQL
Date Mon, 19 Jun 2017 14:45:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-3817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16054122#comment-16054122
] 

Alex Araujo commented on PHOENIX-3817:
--------------------------------------

bq. Just out of curiousity, would this patch give us the capability of writing to both the
data table and index table in one pass to build indexes during a bulk load?
The Multi* classes in this patch are for reading from multiple tables in the same job. We
can add a MultiTableOutputFormat to write to multiple tables. We use something similar in
our tenant management tools to move specific tenants to different clusters in one pass (read
multi-tenant table once and output to different tables).

> VerifyReplication using SQL
> ---------------------------
>
>                 Key: PHOENIX-3817
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3817
>             Project: Phoenix
>          Issue Type: Improvement
>            Reporter: Alex Araujo
>            Assignee: Alex Araujo
>            Priority: Minor
>             Fix For: 4.12.0
>
>         Attachments: PHOENIX-3817.v1.patch, PHOENIX-3817.v2.patch, PHOENIX-3817.v3.patch
>
>
> Certain use cases may copy or replicate a subset of a table to a different table or cluster.
For example, application topologies may map data for specific tenants to different peer clusters.
> It would be useful to have a Phoenix VerifyReplication tool that accepts an SQL query,
a target table, and an optional target cluster. The tool would compare data returned by the
query on the different tables and update various result counters (similar to HBase's VerifyReplication).



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