philipsu522 commented on issue #776: Issue 709: Add Slow Bookkeeper Servers to 
Placement Policy for read ordering
URL: https://github.com/apache/bookkeeper/pull/776#issuecomment-347638395
 
 
   > I am not sure about. I think slow should be before read-only. @philipsu522 
@yzang can you guys answer this?
   
   I think that we put slow bookies behind read-only bookies thinking that slow 
bookies are more likely to hurt performance, while bookies could be in RO for 
any number of reasons. However, based on experience of everyone else, if RO 
bookies seem to be less reliable than slow bookies, I don't mind changing the 
order so that it is available bookies, slow bookies, RO bookies...

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