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https://issues.apache.org/jira/browse/SPARK-8135?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-8135:
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Assignee: Apache Spark (was: Sandy Ryza)
> In SerializableWritable, don't load defaults when instantiating Configuration
> -----------------------------------------------------------------------------
>
> Key: SPARK-8135
> URL: https://issues.apache.org/jira/browse/SPARK-8135
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Sandy Ryza
> Assignee: Apache Spark
>
> Calling "new Configuration()" is an expensive operation because it loads any
> Hadoop configuration XMLs from disk.
> In SerializableWritable, we call new Configuration needlessly when
> instantiating an ObjectWritable. The ObjectWritable only needs the
> Configuration for its class cache, not for any Hadoop properties that might
> be in XML files, so it should be ok to call new Configuration with
> loadDefaults = false.
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