[jira] [Commented] (SPARK-14273) Add FileFormat.isSplittable to indicate whether a format is splittable

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

    [ 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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