ruancheng77 commented on issue #9745:
URL: 
https://github.com/apache/dolphinscheduler/issues/9745#issuecomment-1120168953

   I think you seem to have misunderstood the root cause of the problem.
   The problem I tested is that multithreading causes the shell script to use 
setValue syntax to set the variable value to pass out. Due to the influence of 
multithreading, the thread parsing setValue syntax may not parse in time, 
resulting in the lack of varpool.
   
![image](https://user-images.githubusercontent.com/23415499/167246966-867aea04-900e-4e1d-adb6-6e5ed2a9d301.png)
   


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