# Executing an `Operator`

+ If an `operator` executes too long, it will be cancelled
  + `leader` transfer: 10 seconds at most
  + `region` move: 10 minutes at most
+ Possible causes:
  + `PD` failed to send command to `region leader`
  + `Region leader` refuses to execute
  + Slow execution by `region leader`
  + Failed to report to `PD` after execution

![`smart`](OperatorFTC_aa_001_20221024.png)

![`smart`](OperatorFTCGrafana_aa_001_20221024.png)

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