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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-5300) Spark loads file partitions in inconsistent order on native filesystems
Date Mon, 26 Jan 2015 09:18:34 GMT

    [ https://issues.apache.org/jira/browse/SPARK-5300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14291605#comment-14291605
] 

Apache Spark commented on SPARK-5300:
-------------------------------------

User 'ehiggs' has created a pull request for this issue:
https://github.com/apache/spark/pull/4204

> Spark loads file partitions in inconsistent order on native filesystems
> -----------------------------------------------------------------------
>
>                 Key: SPARK-5300
>                 URL: https://issues.apache.org/jira/browse/SPARK-5300
>             Project: Spark
>          Issue Type: Bug
>          Components: Input/Output
>    Affects Versions: 1.1.0, 1.2.0
>         Environment: Linux, EXT4, for example.
>            Reporter: Ewan Higgs
>
> Discussed on user list in April 2014:
> http://apache-spark-user-list.1001560.n3.nabble.com/Spark-reads-partitions-in-a-wrong-order-td4818.html
> And on dev list January 2015:
> http://apache-spark-developers-list.1001551.n3.nabble.com/RDD-order-guarantees-td10142.html
> When using a file system which isn't HDFS, file partitions ('part-00000, part-00001',
etc.) are not guaranteed to load in the same order. This means previously sorted RDDs will
be loaded out of order. 



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