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From "Hyukjin Kwon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-14273) Add FileFormat.isSplittable to indicate whether a format is splittable
Date Mon, 27 Feb 2017 03:39:45 GMT

    [ https://issues.apache.org/jira/browse/SPARK-14273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885086#comment-15885086
] 

Hyukjin Kwon commented on SPARK-14273:
--------------------------------------

Hi [~yhuai] and [~liancheng],  it seems there is {{FileFormat.IsSplitable}} which was resolve
in SPARK-15654 and https://github.com/apache/spark/pull/13531.

Could we resolve this JIRA if I understood correctly?

> Add FileFormat.isSplittable to indicate whether a format is splittable
> ----------------------------------------------------------------------
>
>                 Key: SPARK-14273
>                 URL: https://issues.apache.org/jira/browse/SPARK-14273
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Cheng Lian
>
> {{FileSourceStrategy}} assumes that all data source formats are splittable and always
splits data files by fixed partition size. However, not all HDSF based formats are splittable.
We need a flag to indicate that and ensure that non-splittable files won't be split into multiple
Spark partitions.
> (PS: Is it "splitable" or "splittable"? Probably the latter one? Hadoop uses the former
one though...)



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