Aleksey Yeschenko updated CASSANDRA-7306:
    Reviewer:   (was: Aleksey Yeschenko)

> Support "edge dcs" with more flexible gossip
> --------------------------------------------
>                 Key: CASSANDRA-7306
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7306
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Distributed Metadata
>            Reporter: Tupshin Harper
>            Assignee: Jeff Jirsa
>              Labels: ponies
> As Cassandra clusters get bigger and bigger, and their topology becomes more 
> complex, there is more and more need for a notion of "hub" and "spoke" 
> datacenters.
> One of the big obstacles to supporting hundreds (or thousands) of remote dcs, 
> is the assumption that all dcs need to talk to each other (and be connected 
> all the time).
> This ticket is a vague placeholder with the goals of achieving:
> 1) better behavioral support for occasionally disconnected datacenters
> 2) explicit support for custom dc to dc routing. A simple approach would be 
> an optional per-dc annotation of which other DCs that DC could gossip with.

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