[jira] [Resolved] (SPARK-18432) Fix HDFS block size in programming guide

["Kousuke Saruta (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-18432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kousuke Saruta resolved SPARK-18432.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0
                   2.0.3

> Fix HDFS block size in programming guide
> ----------------------------------------
>
>                 Key: SPARK-18432
>                 URL: https://issues.apache.org/jira/browse/SPARK-18432
>             Project: Spark
>          Issue Type: Documentation
>          Components: Documentation
>    Affects Versions: 2.0.1
>            Reporter: Noritaka Sekiyama
>            Assignee: Noritaka Sekiyama
>            Priority: Minor
>             Fix For: 2.0.3, 2.1.0
>
>
> http://spark.apache.org/docs/latest/programming-guide.html
> "By default, Spark creates one partition for each block of the file (blocks being 64MB by default in HDFS)"
> Currently default block size in HDFS is 128MB.
> The default value has been already increased in Hadoop 2.2.0 (the oldest supported version of Spark). https://issues.apache.org/jira/browse/HDFS-4053
> Since it looks confusing explanation, I'd like to fix the value from 64MB to 128MB.



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