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Yup, this works. I wonder if this is the first commercial application of this insight? http://hh360.user.srcf.net/blog/2016/08/majority-agreement-i...

Can you tell us what consensus algorithm you're using? Raft, or something else? Your own implementation or something off the shelf?

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I'm not sure.

The coordination consensus is (our own implementation of) disk paxos, which we liked for its operational properties in our context (the coordinators don't need to know about each other or communicate directly). An early version of fdb had a dependency on Zookeeper for this purpose; you can use anything.

I know VSAN uses these and calls them witnesses.

https://cormachogan.com/2014/04/01/vsan-part-21-what-is-a-wi...

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