Yingjie Cao created FLINK-18762:
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Summary: 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
Fix For: 1.12.0
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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