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Did you figure it out? If not, I assume from what I read that the author is referring to many systems keeping replicas of data on different members of the cluster. By keeping replicas, you increase the amount of data stored by can survive the failure of any given node.

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Microsoft's Service Fabric is an open source distributed system build on the same principles. Check it out - https://azure.microsoft.com/en-us/services/service-fabric/

Poorly named, as it conflicts with the excellent Python based provisioning tool: http://www.fabfile.org/

"Fabric" has had a generic distributed meaning way before the Python tool: https://en.wikipedia.org/wiki/Fabric_computing

Microsoft's full product name is "Azure Service Fabric" which properly disambiguates it rather than staking a claim to a common network-related single English word as you claim the Python fabric library does.

Fair enough, TIL

Is it really open source? Do you have a link?

Yes it is - https://github.com/Microsoft/service-fabric

That's recent! Great to see it! However Windows build tools are not ready yet as per readme, also there are no releases since open sourcing yet.

http://github.com/Microsoft/service-fabric

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