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From Maciek Sakrejda <>
Subject Re: What is your backup strategy for Cassandra?
Date Fri, 18 Sep 2015 18:09:30 GMT
On Thu, Sep 17, 2015 at 7:46 PM, Marc Tamsky <> wrote:

> This seems like an apt time to quote [1]:
> > Remember that you get 1 point for making a backup and 10,000 points for
> restoring one.
> Restoring from backups is my goal.
> The commonly recommended tools (tablesnap, cassandra_snapshotter) all seem
> to leave the restore operation as a pretty complicated exercise for the
> operator.
> Do any include a working way to restore, on a different host, all of node
> X's data from backups to the correct directories, such that the restored
> files are in the proper places and the node restart method [2] "just works"?

As someone getting started with Cassandra, I'm very much interested in this
as well. It seems that for the most part, folks seem to rely on replication
and node replacement to recover from failures, and perhaps this is a
testament for how well this works, but as long as we're hauling out
aphorisms, "RAID is not a backup" seems to (partially) apply here too.

I'd love to hear more about how the community does restores, too. This
isn't complaining about shoddy tooling: this is trying to understand--and
hopefully, in time, improve--the status quo re: disaster recovery. E.g.,
given that tableslurp operates on a single table at a time, do people
normally just restore single tables? Is that used when there's filesystem
or disk corruption? Bugs? Other issues? Looking forward to learning more.


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