himanshug commented on issue #8175: allow decommissioning Middle Manager nodes
URL: 
https://github.com/apache/incubator-druid/issues/8175#issuecomment-517002503
 
 
   > does that mean if we have a task with an 8 hour duration, we need to wait 
8 hours?
   
   in general, yes
   however, after disabling the MM
   you have the option of "killing" those tasks running on the disabled MM , 
kafka supervisor will automatically re-create them and they would not go to 
disabled MM
   OR, I think, kafka supervisor has a "suspend/resume" feature where you can 
send a request to suspend it temporarily which will wrap up the current state. 
and then you can resume which will re-create the tasks.

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