[GitHub] [helix] xyuanlu opened a new issue, #2589: Allow user to mark host as evacuate before removing host

["xyuanlu (via GitHub)" <gi...@apache.org>]

xyuanlu opened a new issue, #2589:
URL: https://github.com/apache/helix/issues/2589

   **Is your feature request related to a problem? Please describe.**
   Right now Helix does not provide user with an option to prepare planned host removal. Many replicas will have n-1 replicas during host removal and adds risk for availability loss.
   
   **Describe the solution you'd like**
   Helix could provide a feature that allow user to tag to be removed host and proactively move replicas to other hosts. 
   


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