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From "Robert Stupp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8467) Monitoring UDFs
Date Sun, 02 Aug 2015 20:43:04 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14651172#comment-14651172
] 

Robert Stupp commented on CASSANDRA-8467:
-----------------------------------------

We now have support for UDFs in trace. But having some ability to monitor UDF executions might
be beneficial.

> Monitoring UDFs
> ---------------
>
>                 Key: CASSANDRA-8467
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8467
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Robert Stupp
>            Priority: Minor
>              Labels: tracing, udf
>
> This thicket's about to add UDF executions to session-tracing.
> Tracing these parameters for UDF invocations could become very interesting.
> * name of UDF
> * # of invocations
> * # of rejected executions
> * min/max/avg execution times
> "Rejected executions" would count UDFs that are not executed because an input parameter
is null/empty (CASSANDRA-8374).



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