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https://issues.apache.org/jira/browse/FLINK-18762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17341214#comment-17341214
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Yingjie Cao commented on FLINK-18762:
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This ticket is not needed, so closing it.
> Make network buffers per incoming/outgoing channel can be configured
> separately
> -------------------------------------------------------------------------------
>
> Key: FLINK-18762
> URL: https://issues.apache.org/jira/browse/FLINK-18762
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Network
> Reporter: Yingjie Cao
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.14.0
>
>
> In FLINK-16012, we want to decrease the default number of exclusive buffers
> at receiver side from 2 to 1 to accelerate checkpoint in cases of
> backpressure. However, number of buffers per outgoing and incoming channels
> are configured by a single configuration key. It is better to make network
> buffers per incoming/outgoing channel can be configured separately which is
> more flexible. At the same time, we can keep the default behavior compatible.
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