sthm opened a new pull request, #20509:
URL: https://github.com/apache/flink/pull/20509

   ## What is the purpose of the change
   
   Implement slow start strategy for AIMD to avoid overloading destination on 
initialization.
   
   ## Brief change log
   
   Adapt initialization of the AIMD strategy to set the maximum initial rate to 
a low number rather than starting with the theoretical maximum.
   
   ## Verifying this change
   
   Please make sure both new and modified tests in this PR follows the 
conventions defined in our code quality guide: 
https://flink.apache.org/contributing/code-style-and-quality-common.html#testing
   
   This change is already covered by existing tests, such as 
`testInitialRateIsSetByConstructor`.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): no
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: no
     - The serializers: no
     - The runtime per-record code paths (performance sensitive): yes (during 
initialization of the sink)
     - Anything that affects deployment or recovery: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? no
     - If yes, how is the feature documented? not applicable
   


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