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Posted to issues@impala.apache.org by "Quanlong Huang (Jira)" <ji...@apache.org> on 2024/03/11 23:55:00 UTC

[jira] [Created] (IMPALA-12892) Show the list of UDFs used in a query in the query profile

Quanlong Huang created IMPALA-12892:
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             Summary: Show the list of UDFs used in a query in the query profile
                 Key: IMPALA-12892
                 URL: https://issues.apache.org/jira/browse/IMPALA-12892
             Project: IMPALA
          Issue Type: New Feature
            Reporter: Quanlong Huang


When debugging JVM memory issues of impalads, we want to know if there are any Java UDFs contribute to that. It'd be helpful to show the list of UDFs that are used in a query in the query profile.

On the other hand, Java UDFs are usually low performant comparing to native UDFs. We can show a warning in the profile saying Java UDFs are used.

CC [~michaelsmith]



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