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https://issues.apache.org/jira/browse/FLINK-10887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16713143#comment-16713143
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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-445316366
> Can we always assume that the user-jar/class loader will be available
where the `AggregateFunction` is needed? If yes, I think this is a nice
approach! (We can probably use concrete types in the interface, though)
@aljoscha I'm actually not sure if the user code classloader is available
from the JobMaster but I would think that's reasonable since there's a 1:1
relationship between the JobMaster and a single job.
WRT concrete types in the RPC interface I'm not sure what you're thinking
there. The concrete types are not known in this approach. The types are up to
the user/client and can be different for each named aggregate.
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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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