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From "Tim Armstrong (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (IMPALA-753) Parallelize HBase scan
Date Mon, 12 Jun 2017 21:33:00 GMT

     [ https://issues.apache.org/jira/browse/IMPALA-753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tim Armstrong resolved IMPALA-753.
----------------------------------
    Resolution: Won't Fix

This  will be fixed as part of the multi-thread query execution work.

> Parallelize HBase scan
> ----------------------
>
>                 Key: IMPALA-753
>                 URL: https://issues.apache.org/jira/browse/IMPALA-753
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 1.0
>            Reporter: Alan Choi
>            Priority: Minor
>
> Impala chains all the regions on the same region sever and scan the data using one scan.
The lack of parallel scan within the region server makes Impala slower than Hive when scanning
HBase table.
> Impala can simply parallelize scanning regions within the same region server.



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