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https://issues.apache.org/jira/browse/SPARK-5770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14318027#comment-14318027
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Apache Spark commented on SPARK-5770:
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User 'XuTingjun' has created a pull request for this issue:
https://github.com/apache/spark/pull/4565
> Use addJar() to upload a new jar file to executor, it can't be added to
> classloader
> -----------------------------------------------------------------------------------
>
> Key: SPARK-5770
> URL: https://issues.apache.org/jira/browse/SPARK-5770
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: meiyoula
>
> First use addJar() to upload a jar to the executor, then change the jar
> content and upload it again. We can see the jar file in the local has be
> updated, but the classloader still load the old one. The executor log has no
> error or exception to point it.
> I use spark-shell to test it. And set "spark.files.overwrite" is true.
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