Piotr Nowojski created FLINK-36556:
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             Summary: Allow to configure starting buffer size when using buffer 
debloating
                 Key: FLINK-36556
                 URL: https://issues.apache.org/jira/browse/FLINK-36556
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / Network, Runtime / Task
    Affects Versions: 1.19.1
            Reporter: Piotr Nowojski


Starting buffer size is 32KB, so during recovery/startup, before backpressure 
kicks in, Flink job can be flooded with large buffers, completely stalling the 
progress.

Proposed solution is to make this starting size configurable.



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