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https://issues.apache.org/jira/browse/SPARK-6752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tathagata Das resolved SPARK-6752.
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Resolution: Fixed
> Allow StreamingContext to be recreated from checkpoint and existing
> SparkContext
> --------------------------------------------------------------------------------
>
> Key: SPARK-6752
> URL: https://issues.apache.org/jira/browse/SPARK-6752
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Affects Versions: 1.1.1, 1.2.1, 1.3.1
> Reporter: Tathagata Das
> Assignee: Tathagata Das
> Priority: Critical
> Fix For: 1.4.0
>
>
> Currently if you want to create a StreamingContext from checkpoint
> information, the system will create a new SparkContext. This prevent
> StreamingContext to be recreated from checkpoints in managed environments
> where SparkContext is precreated.
> Proposed solution: Introduce the following methods on StreamingContext
> 1. {{new StreamingContext(checkpointDirectory, sparkContext)}}
> - Recreate StreamingContext from checkpoint using the provided SparkContext
> 2. {{new StreamingContext(checkpointDirectory, hadoopConf, sparkContext)}}
> - Recreate StreamingContext from checkpoint using the provided SparkContext
> and hadoop conf to read the checkpoint
> 3. {{StreamingContext.getOrCreate(checkpointDirectory, sparkContext,
> createFunction: SparkContext => StreamingContext)}}
> - If checkpoint file exists, then recreate StreamingContext using the
> provided SparkContext (that is, call 1.), else create StreamingContext using
> the provided createFunction
> Also, the corresponding Java and Python API has to be added as well.
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