baolsen opened a new pull request #16589:
URL: https://github.com/apache/airflow/pull/16589


   Small improvements to DataSync operator. 
   
   Most notable is the ability of the operator to cancel an in progress task 
execution, eg if the Airflow task times out or is killed. This avoids a zombie 
issue when the AWS DataSync service can have a zombie task running even if 
Airflow's task has failed. 
   
   Also made some small changes to polling values. DataSync is a batch-based 
uploading service, it takes several minutes to operate so I changed the polling 
intervals from 5 seconds to 30 seconds and adjusted max_iterations to what I 
think is a more reasonable default.
   
   closes: #11011


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