[jira] [Commented] (SPARK-8861) Add basic instrumentation to each SparkPlan operator

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-8861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14651553#comment-14651553 ] 

Apache Spark commented on SPARK-8861:
-------------------------------------

User 'zsxwing' has created a pull request for this issue:
https://github.com/apache/spark/pull/7774

> Add basic instrumentation to each SparkPlan operator
> ----------------------------------------------------
>
>                 Key: SPARK-8861
>                 URL: https://issues.apache.org/jira/browse/SPARK-8861
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>
> The basic metric can be the number of tuples that is flowing through. We can add more metrics later.
> In order for this to work, we can add a new "accumulators" method to SparkPlan that defines the list of accumulators, .e.g.
> {code}
>   def accumulators: Map[String, Accumulator]
> {code}



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