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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/11/14 08:16:58 UTC
[jira] [Commented] (SPARK-18432) Fix HDFS block size in programming
guide
[ https://issues.apache.org/jira/browse/SPARK-18432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15663112#comment-15663112 ]
Apache Spark commented on SPARK-18432:
--------------------------------------
User 'moomindani' has created a pull request for this issue:
https://github.com/apache/spark/pull/15879
> 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
> Priority: Minor
>
> 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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