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Posted to issues@spark.apache.org by "Tathagata Das (JIRA)" <ji...@apache.org> on 2015/10/28 03:41:27 UTC

[jira] [Updated] (SPARK-11361) Show scopes of RDD operations inside DStream.foreachRDD and DStream.transform in DAG viz

     [ https://issues.apache.org/jira/browse/SPARK-11361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tathagata Das updated SPARK-11361:
----------------------------------
    Description: 
Currently, when a DStream sets the scope for RDD generated by it, that scope is not allowed to be overridden by the RDD operations. So in case of `DStream.foreachRDD`, all the RDDs generated inside the foreachRDD get the same scope - `foreachRDD @ <time>`, as set by the `ForeachDStream`. So it is hard to debug generated RDDs in the RDD DAG viz in the Spark UI. 

This JIRA is to allow the RDD operations inside `DStream.transform` and `DStream.foreachRDD` to append their own scopes to the earlier DStream scope. 

> Show scopes of RDD operations inside DStream.foreachRDD and DStream.transform in DAG viz
> ----------------------------------------------------------------------------------------
>
>                 Key: SPARK-11361
>                 URL: https://issues.apache.org/jira/browse/SPARK-11361
>             Project: Spark
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: Tathagata Das
>            Assignee: Tathagata Das
>            Priority: Minor
>
> Currently, when a DStream sets the scope for RDD generated by it, that scope is not allowed to be overridden by the RDD operations. So in case of `DStream.foreachRDD`, all the RDDs generated inside the foreachRDD get the same scope - `foreachRDD @ <time>`, as set by the `ForeachDStream`. So it is hard to debug generated RDDs in the RDD DAG viz in the Spark UI. 
> This JIRA is to allow the RDD operations inside `DStream.transform` and `DStream.foreachRDD` to append their own scopes to the earlier DStream scope. 



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