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https://issues.apache.org/jira/browse/FLINK-13432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16909967#comment-16909967
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Stephan Ewen commented on FLINK-13432:
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A "long poll" is a single poll that blocks until a result is available.
If the job is short, and the result available quickly, it returns quickly. If
the result takes longer, the poll just blocks and waits.
It is a way to get around the trade-off between poll frequency and result
latency.
> Set max polling interval threshold for job result polling
> ---------------------------------------------------------
>
> Key: FLINK-13432
> URL: https://issues.apache.org/jira/browse/FLINK-13432
> Project: Flink
> Issue Type: Improvement
> Components: Command Line Client
> Affects Versions: 1.9.0
> Reporter: Jeff Zhang
> Priority: Major
>
> Currently, flink will increase polling interval by one ms after each polling.
> It might be ok for most of the cases, but would be better to set a max
> interval polling threshold
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