[jira] [Created] (FLINK-16012) Reduce the default number of exclusive buffers from 2 to 1 on receiver side

[Shang Yuanchun (Jira)]

zhijiang created FLINK-16012:
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             Summary: Reduce the default number of exclusive buffers from 2 to 1 on receiver side
                 Key: FLINK-16012
                 URL: https://issues.apache.org/jira/browse/FLINK-16012
             Project: Flink
          Issue Type: Improvement
            Reporter: zhijiang


In order to reduce the inflight buffers for checkpoint in the case of back pressure, we can reduce the number of exclusive buffers for remote input channel from default 2 to 1 as the first step. Besides that, the total required buffers are also reduced as a result. We can further verify the performance effect via various of benchmarks.



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