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https://issues.apache.org/jira/browse/SPARK-54533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan reassigned SPARK-54533:
-----------------------------------
Assignee: Eric Yang
> Metric executorSource.METRIC_RESULT_SIZE is updated with uninitialized value
> ----------------------------------------------------------------------------
>
> Key: SPARK-54533
> URL: https://issues.apache.org/jira/browse/SPARK-54533
> Project: Spark
> Issue Type: Bug
> Components: UI
> Affects Versions: 4.0.0, 4.2.0
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Major
> Labels: pull-request-available
> Attachments: resultSizeMetric_afterFix.txt,
> resultSizeMetric_beforeFix.txt
>
>
> In TaskRunner.run, the metric `executorSource.METRIC_RESULT_SIZE` is updated
> with the value of `task.metrics.resultSize`, which hasn't been updated itself.
> {code:java}
> executorSource.METRIC_RESULT_SIZE.inc(task.metrics.resultSize) {code}
> This makes this metric has zero value all the time.
> It should be set to the `resultSize` which is populated later:
> {code:java}
> val resultSize = serializedDirectResult.size {code}
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