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https://issues.apache.org/jira/browse/SPARK-3518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14132608#comment-14132608
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Apache Spark commented on SPARK-3518:
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User 'sarutak' has created a pull request for this issue:
https://github.com/apache/spark/pull/2380
> Remove useless statement in JsonProtocol
> ----------------------------------------
>
> Key: SPARK-3518
> URL: https://issues.apache.org/jira/browse/SPARK-3518
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.2.0
> Reporter: Kousuke Saruta
> Priority: Minor
>
> In org.apache.spark.util.JsonProtocol#taskInfoToJson, a variable named
> "accumUpdateMap" is created as follows.
> {code}
> val accumUpdateMap = taskInfo.accumulables
> {code}
> But accumUpdateMap is never used and there is 2nd invocation of
> "taskInfo.accumlables" as follows.
> {code}
> ("Accumulables" ->
> JArray(taskInfo.accumulables.map(accumulableInfoToJson).toList))
> {code}
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