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From "Hyukjin Kwon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-26362) Remove 'spark.driver.allowMultipleContexts' to disallow multiple Spark contexts
Date Fri, 14 Dec 2018 05:05:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-26362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hyukjin Kwon updated SPARK-26362:
---------------------------------
    Summary: Remove 'spark.driver.allowMultipleContexts' to disallow multiple Spark contexts
 (was: Deprecate 'spark.driver.allowMultipleContexts' to disallow multiple Spark contexts)

> Remove 'spark.driver.allowMultipleContexts' to disallow multiple Spark contexts
> -------------------------------------------------------------------------------
>
>                 Key: SPARK-26362
>                 URL: https://issues.apache.org/jira/browse/SPARK-26362
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 3.0.0
>            Reporter: Hyukjin Kwon
>            Priority: Major
>
> Multiple Spark contexts are discouraged and it has been warning from 4 years ago (see
SPARK-4180).
> It could cause arbitrary and mysterious error cases. (Honestly, I didn't even know Spark
allows it). 



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