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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: consistent backups (was: thinking about dropping hinted handoff)
Date Thu, 25 Feb 2010 14:22:38 GMT
2010/2/25 Ted Zlatanov <tzz@lifelogs.com>:
> I want a consistent backup.

You can get an "eventually consistent backup" by flushing all nodes
and snapshotting; no individual node's backup is guaranteed to be
consistent but if you restore from that snapshot then clients will get
eventually consistent behavior as usual.

Other than that there is no such thing as a "consistent view of the
data" in the strict sense, except in the trivial case of writes with
CL.ALL.

-Jonathan

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