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https://issues.apache.org/jira/browse/FLINK-9253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17212929#comment-17212929
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Zhijiang commented on FLINK-9253:
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[~NicoK] I just closed the parent umbrella ticket for cleanup. Do you think we
need to close this issue since it was not touched already long time and I am
not quite sure whether it is worth focusing on future.
> Make buffer count per InputGate always #channels*buffersPerChannel +
> ExclusiveBuffers
> -------------------------------------------------------------------------------------
>
> Key: FLINK-9253
> URL: https://issues.apache.org/jira/browse/FLINK-9253
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Network
> Affects Versions: 1.5.0, 1.6.0
> Reporter: Nico Kruber
> Assignee: Nico Kruber
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.7.3
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The credit-based flow control path assigns exclusive buffers only to remote
> channels (which makes sense since local channels don't use any own buffers).
> However, this is a bit intransparent with respect to how much data may be in
> buffers since this depends on the actual schedule of the job and not the job
> graph.
> By adapting the floating buffers to use a maximum of
> {{#channels*buffersPerChannel + floatingBuffersPerGate - #exclusiveBuffers}},
> we would be channel-type agnostic and keep the old behaviour.
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