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Posted to dev@flink.apache.org by "Yingjie Cao (Jira)" <ji...@apache.org> on 2020/07/30 07:18:00 UTC
[jira] [Created] (FLINK-18762) Make network buffers per
incoming/outgoing channel can be configured separately
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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