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https://issues.apache.org/jira/browse/FLINK-29299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yingjie Cao resolved FLINK-29299.
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Resolution: Fixed
Fix via
d3513d98953b0922e3dc753ef90806ed4e264926 on master
7367e358ccf34fb1e9ea2cea9d5b1f630b00e10c on 1.16
> Fix the network memory size calculation issue in fine-grained resource mode
> ---------------------------------------------------------------------------
>
> Key: FLINK-29299
> URL: https://issues.apache.org/jira/browse/FLINK-29299
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Affects Versions: 1.16.0
> Reporter: Yingjie Cao
> Assignee: Yingjie Cao
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.16.0
>
>
> After FLINK-28663, one intermediate dataset can be consumed by multiple
> consumers, there is a case where one vertex can consume one intermediate
> dataset multiple times. However, currently in fine-grained resource mode,
> when computing the required network buffer size, the intermediate dataset is
> used as key to record the size of network buffer per input gate, which means
> it may allocate less network buffers than needed if two input gate of the
> same vertex consumes the same intermediate dataset.
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