[GitHub] [arrow-datafusion] yahoNanJing edited a comment on issue #1936: [Ballista] Introduce StageManager for managing tasks stage by stage

[GitBox]

yahoNanJing edited a comment on issue #1936:
URL: 
https://github.com/apache/arrow-datafusion/issues/1936#issuecomment-1063121300


   There are three levels of job state: task -> stage -> job. 
   
   For the state machine of task:
   
![task_status_state_machine](https://user-images.githubusercontent.com/90197956/157489437-ccf1a191-b35d-4e50-95a4-9f7a0ccf38b3.png)
   
   
   
   For the state machine of stage:
   
![stage_state_machine](https://user-images.githubusercontent.com/90197956/157489461-bad483dd-b253-49a0-8243-58b90b46aa31.png)
   
   
   
   For the state machine of job:
   
![job_state_machine](https://user-images.githubusercontent.com/90197956/157489487-49812fa4-cd6a-446b-ade5-4f09bfee6145.png)
   
   


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