ruanwenjun commented on PR #10618:
URL: 
https://github.com/apache/dolphinscheduler/pull/10618#issuecomment-1166423574

   > > @guoshupei Please take a look.
   > 
   > Okay, @ruanwenjun I agree with you. In addition, I think online or offline 
master, if it can not be reset `MASTER_SLOT` and `MASTER_SIZE`? WDYT?
   
   The reset `MASTER_SLOT` and `MASTER_SIZE` is also not an atomic operation, 
and each master may have their own time to do this operation, but this is not a 
problem, since we use database transaction to avoid the command be duplicated 
to consume. In most of time, the master can have a right slot and master size, 
but if they don't have the right slot, the ds can still work will.


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