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https://issues.apache.org/jira/browse/FLINK-10887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16774612#comment-16774612
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Jamie Grier commented on FLINK-10887:
-------------------------------------
[~thw] I'll update the PR with a solution for the aggregand and result that
works similarly to the aggregateFunction. This was a designed but I think it's
an oversight. Thanks.
> 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
> Fix For: 1.8.0
>
> Original Estimate: 24h
> Time Spent: 50m
> Remaining Estimate: 23h 10m
>
> 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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