Nico Kruber created FLINK-9253:
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Summary: 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: Network
Affects Versions: 1.5.0, 1.6.0
Reporter: Nico Kruber
Assignee: Nico Kruber
Fix For: 1.5.0
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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