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https://issues.apache.org/jira/browse/FLINK-29351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xintong Song closed FLINK-29351.
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Fix Version/s: (was: 1.17.0)
Resolution: Won't Do
Subsumed by FLIP-266 (FLINK-30469).
> Enable input buffer floating for blocking shuffle
> -------------------------------------------------
>
> Key: FLINK-29351
> URL: https://issues.apache.org/jira/browse/FLINK-29351
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Reporter: Yingjie Cao
> Priority: Major
> Labels: pull-request-available
>
> At input gate, Flink needs exclusive buffers for each input channel. For
> large parallelism jobs, it is easy to cause "Insufficient number of network
> buffers" error. This ticket aims to make all input network buffers floating
> for blocking shuffle to reduce the possibility of "Insufficient number of
> network buffers" error. This change can also improve the default blocking
> shuffle performance because buffer floating can increase the buffer
> utilization.
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