mingmwang commented on issue #4349:
URL: 
https://github.com/apache/arrow-datafusion/issues/4349#issuecomment-1328491946

   > * [ ]  Remove the `KFPairs` stuff in TaskProperties as that is not used by 
ballista 
https://github.com/search?q=repo%3Aapache%2Farrow-ballista%20KVPairs&type=code 
and has been superceded by ConfigOptions and the TaskProperties wrappee
   
   No, those KV pairs in TaskProperties are used by Ballista actually.  Please 
check those code snippets:
   Configurations are serialized in the form of KV pairs and sent from Ballista 
Scheduler to Ballista Executor.
   
   
https://github.com/apache/arrow-ballista/blob/acbdf608807697e72122a249c4bf7505274906d0/ballista/executor/src/execution_loop.rs#L172-L95
   
   


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