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https://issues.apache.org/jira/browse/SPARK-37840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17472833#comment-17472833
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melin commented on SPARK-37840:
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If the JAR file update time changes, create a new classloader
> Dynamically update the loaded Hive UDF JAR
> ------------------------------------------
>
> Key: SPARK-37840
> URL: https://issues.apache.org/jira/browse/SPARK-37840
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: melin
> Priority: Major
>
> In the production environment, spark ThriftServer needs to be restarted if
> jar files are updated after UDF files are loaded。
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