jin xing created SPARK-23669:
--------------------------------
Summary: Executors fetch jars and name the jars with md5 prefix
Key: SPARK-23669
URL: https://issues.apache.org/jira/browse/SPARK-23669
Project: Spark
Issue Type: New Feature
Components: Spark Core
Affects Versions: 2.3.0
Environment: In our cluster, there are lots of UDF jars, some of them
have the same filename but different path, for example:
```
hdfs://A/B/udf.jar -> udfA
hdfs://C/D/udf.jar -> udfB
```
When user uses udfA and udfB in same sql, executor will fetch both
\{hdfs://A/B/udf.jar} and \{hdfs://C/D/udf.jar}. There will be a conflict for
the same name.
Can we config to fetch jars and save with a filename with MD5 prefix, so there
will be no conflict.
Reporter: jin xing
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