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https://issues.apache.org/jira/browse/FLINK-16012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yingjie Cao updated FLINK-16012:
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Attachment: image-2020-02-14-09-13-07-967.png
> Reduce the default number of exclusive buffers from 2 to 1 on receiver side
> ---------------------------------------------------------------------------
>
> Key: FLINK-16012
> URL: https://issues.apache.org/jira/browse/FLINK-16012
> Project: Flink
> Issue Type: Improvement
> Reporter: Zhijiang
> Assignee: Yingjie Cao
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.0
>
> Attachments: image-2020-02-13-21-54-05-026.png,
> image-2020-02-13-23-30-17-951.png, image-2020-02-14-07-23-16-171.png,
> image-2020-02-14-09-13-07-967.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In order to reduce the inflight buffers for checkpoint in the case of back
> pressure, we can reduce the number of exclusive buffers for remote input
> channel from default 2 to 1 as the first step. Besides that, the total
> required buffers are also reduced as a result. We can further verify the
> performance effect via various of benchmarks.
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