Github user shenh062326 commented on the issue:
https://github.com/apache/spark/pull/16324
Currentlyï¼we can create a UDF with jar in HDFS, but failed to use it.
Spark driver won't download the jar from HDFS, it only add the path to the
classLoader.
If we don't support reading UDF jar from HDFS, we should download the UDF
jar.
I think support reading UDF jar from HDFS is better.
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