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https://issues.apache.org/jira/browse/FLINK-10887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16707319#comment-16707319
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ASF GitHub Bot commented on FLINK-10887:
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jgrier commented on issue #7099: [FLINK-10887] [jobmaster] Add source watermark
tracking to the JobMaster
URL: https://github.com/apache/flink/pull/7099#issuecomment-443739811
Sorry I haven't responded to this. We had a baby boy this week so that has
kept me pretty busy ;)
Okay, so I'm on board with generifying this further. @StephanEwen if we're
to do a generic transient aggregator do you mean to allow the client to provide
the aggregation function? In this case the API would look something like this:
`CompletableFuture<R> updateAggregate(
String aggregateName,
T aggregand,
BiFunction<T, R, R> aggregationFunction);`
Is this what you had in mind?
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> Add source watermark tracking to the JobMaster
> ----------------------------------------------
>
> Key: FLINK-10887
> URL: https://issues.apache.org/jira/browse/FLINK-10887
> Project: Flink
> Issue Type: Sub-task
> Components: JobManager
> Reporter: Jamie Grier
> Assignee: Jamie Grier
> Priority: Major
> Labels: pull-request-available
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> We need to add a new RPC to the JobMaster such that the current watermark for
> every source sub-task can be reported and the current global minimum/maximum
> watermark can be retrieved so that each source can adjust their partition
> read rates in an attempt to keep sources roughly aligned in event time.
>
>
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