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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2014/10/04 23:05:34 UTC
[jira] [Commented] (SPARK-922) Update Spark AMI to Python 2.7
[ https://issues.apache.org/jira/browse/SPARK-922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14159284#comment-14159284 ]
Josh Rosen commented on SPARK-922:
----------------------------------
I chatted with someone who had a job that ran ~20x slower on Python 2.6 than on 2.7, likely due to changes to the json library (in 2.7+, json is implemented as a C extension rather than in pure-Python). Maybe we should add a note on this to the docs.
> Update Spark AMI to Python 2.7
> ------------------------------
>
> Key: SPARK-922
> URL: https://issues.apache.org/jira/browse/SPARK-922
> Project: Spark
> Issue Type: Task
> Components: EC2, PySpark
> Affects Versions: 0.9.0, 0.9.1, 1.0.0
> Reporter: Josh Rosen
> Fix For: 1.2.0
>
>
> Many Python libraries only support Python 2.7+, so we should make Python 2.7 the default Python on the Spark AMIs.
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