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https://issues.apache.org/jira/browse/FLINK-11198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17334051#comment-17334051
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Flink Jira Bot commented on FLINK-11198:
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This issue was marked "stale-assigned" and has not received an update in 7
days. It is now automatically unassigned. If you are still working on it, you
can assign it to yourself again. Please also give an update about the status of
the work.
> Access to MetricGroup in an AggregateFunction(Non Rich)
> -------------------------------------------------------
>
> Key: FLINK-11198
> URL: https://issues.apache.org/jira/browse/FLINK-11198
> Project: Flink
> Issue Type: New Feature
> Components: API / DataStream
> Affects Versions: 1.6.2
> Reporter: Chirag Dewan
> Assignee: Hequn Cheng
> Priority: Major
> Labels: stale-assigned
>
> The only way to add custom metrics from UDF is through RuntimeContext. And,
> RuntimeContext is wired in every RichFunction implementation.
> However, for aggregate() in Windowed Stream, we cannot use the Rich version
> of AggregateFunction. As I remotely understand, is done to avoid exposing the
> state in the Aggregate UDF.
> But can we have some minimal context which does not expose state but provide
> metrics, classloader etc.in the UDF?
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