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https://issues.apache.org/jira/browse/SPARK-12895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Rosen resolved SPARK-12895.
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Resolution: Fixed
Fix Version/s: 2.0.0
Issue resolved by pull request 10835
[https://github.com/apache/spark/pull/10835]
> Implement TaskMetrics using accumulators
> ----------------------------------------
>
> Key: SPARK-12895
> URL: https://issues.apache.org/jira/browse/SPARK-12895
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Reporter: Andrew Or
> Assignee: Andrew Or
> Fix For: 2.0.0
>
>
> We need to first do this before we can avoid sending TaskMetrics from the
> executors to the driver. After we do this, we can send only accumulator
> updates instead of both that AND TaskMetrics.
> By the end of this issue TaskMetrics will be a wrapper of accumulators. It
> will be only syntactic sugar for setting these accumulators.
> But first, we need to express everything in TaskMetrics as accumulators.
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