Hi community!

Because of the limitation of connector, i couldn't upgrade apache flink from 
version 1.13.3 to versin 1.14.0. But i really need the important feature of 
buffer debloating in 1.14.0 for heavy checkpoint at backpressure. 


So which issue or commit should i merge in flink-1.13.3 for buffer debloating? 


- [FLINK-24189] Perform buffer debloating per single gate
- PR-17024 mentioned in  https://issues.apache.org/jira/browse/FLINK-23973


Thanks for your any reply or suggestion. 


Best Regards!

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