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https://issues.apache.org/jira/browse/SPARK-32996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh resolved SPARK-32996.
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Fix Version/s: 3.1.0
Assignee: Shruti Gumma
Resolution: Fixed
> Handle Option.empty v1.ExecutorSummary#peakMemoryMetrics
> --------------------------------------------------------
>
> Key: SPARK-32996
> URL: https://issues.apache.org/jira/browse/SPARK-32996
> Project: Spark
> Issue Type: Bug
> Components: Web UI
> Affects Versions: 3.0.1, 3.1.0
> Reporter: Shruti Gumma
> Assignee: Shruti Gumma
> Priority: Major
> Fix For: 3.1.0
>
>
> When {{peakMemoryMetrics}} in {{ExecutorSummary}} is {{Option.empty}}, then
> the {{ExecutorMetricsJsonSerializer#serialize}} method does not execute the
> {{jsonGenerator.writeObject}} method. This causes the json to be generated
> with {{peakMemoryMetrics}} key added to the serialized string, but no
> corresponding value.
> This causes an error to be thrown when it is the next key {{attributes}} turn
> to be added to the json:
> {{com.fasterxml.jackson.core.JsonGenerationException: Can not write a field
> name, expecting a value.}}
> {{}}
> {{}}
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