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https://issues.apache.org/jira/browse/FLINK-3429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-3429:
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Labels: auto-deprioritized-major stale-minor (was:
auto-deprioritized-major)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help
the community manage its development. I see this issues has been marked as
Minor but is unassigned and neither itself nor its Sub-Tasks have been updated
for 180 days. I have gone ahead and marked it "stale-minor". If this ticket is
still Minor, please either assign yourself or give an update. Afterwards,
please remove the label or in 7 days the issue will be deprioritized.
> Add histogram-based timestamp/watermark extractor
> -------------------------------------------------
>
> Key: FLINK-3429
> URL: https://issues.apache.org/jira/browse/FLINK-3429
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream
> Reporter: Robert Metzger
> Priority: Minor
> Labels: auto-deprioritized-major, stale-minor
>
> While FLINK-3428 provides a static low watermark generator, we should also
> provide a watermark extractor which periodically takes samples of the
> event-time distribution in a data stream into a histogram.
> From that histogram, users can specify that watermarks should cover a certain
> percentile of the data.
> For example a user might want watermarks to rise when 90% of the events have
> been seen. With the periodic update of the histogram, the extractor can react
> to network latencies and other issues causing late, out-of-order arrivals.
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