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From chen dongming <cadem...@hotmail.com>
Subject how is zookeeper deploy at multi datacenter?
Date Thu, 30 Jun 2016 05:04:47 GMT
How many ways to deploy at multi datacenter for backup?

 From my point view:

1. use observer

     use only 1 ensemble

     one datatcenter as main datacenter with leader and follower

     other datacenters only with 3 observers

     When main datacenter crash, select one datacenter as new main 
datacenter, and convert observers to leader/follower manually.

2. sync data at app level

     use multi ensembles for each datacenter

     sync data at app level, and app make sure no data conflict between 
ensembles.

Is there any other way to deploy multi datacenter for backup?

At last, I notice issue ZOOKEEPER-892 discontinue, why ? And zoorepl is 
suitable for multi datacenter for buckup?



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