meiyoula created SPARK-5770:
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Summary: 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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