liukun4515 commented on issue #5022:
URL: 
https://github.com/apache/arrow-datafusion/issues/5022#issuecomment-1407315954

   The `Repartition Exec` share a global state of 
   ```    
   /// Inner state that is initialized when the first output stream is created.
       state: Arc<Mutex<RepartitionExecState>>,
   ```
   
   the state will shared between multiple runtime/coroutine context, if one 
coroutine execute the `partition 1`, and other coroutine can not execute the 
`partition 1` again.


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