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From "Shixiong Zhu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-19525) Enable Compression of RDD Checkpoints
Date Fri, 17 Feb 2017 23:19:44 GMT

    [ https://issues.apache.org/jira/browse/SPARK-19525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15872717#comment-15872717
] 

Shixiong Zhu commented on SPARK-19525:
--------------------------------------

I see. This is RDD checkpointing. Sounds a good idea.

> Enable Compression of RDD Checkpoints
> -------------------------------------
>
>                 Key: SPARK-19525
>                 URL: https://issues.apache.org/jira/browse/SPARK-19525
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.1.0
>            Reporter: Aaditya Ramesh
>
> In our testing, compressing partitions while writing them to checkpoints on HDFS using
snappy helped performance significantly while also reducing the variability of the checkpointing
operation. In our tests, checkpointing time was reduced by 3X, and variability was reduced
by 2X for data sets of compressed size approximately 1 GB.



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