Best way to back-up riak

Jason J. W. Williams jasonjwwilliams at gmail.com
Mon Jul 12 12:56:39 EDT 2010


Hey Justin,

Since Riak is lockless, what is the best approach to pulling a
distributed FS snapshot of the bitcask files across nodes? I assume if
they're not close to each other, you'll have an issue if you have to
restore a cluster.


-J

On Sun, Jul 11, 2010 at 8:14 PM, Justin Sheehy <justin at basho.com> wrote:
> Hi, Jan.
>
> On Sun, Jul 11, 2010 at 8:53 PM, Jan Vincent <jvliwanag at gmail.com> wrote:
>
>> Given that riak is new in the database field, if ever I use riak in production,
>> what would be the best way to back it up? I know that there's redundancy
>> on the different nodes and NRW may be modifiable per request, but I'm
>> wondering if there's a way to snapshot the dataset periodically -- at least
>> until riak becomes provably battle tested.
>
> Riak is fairly battle-tested already: we were using its prior version
> under Basho's own customer-facing applications in 2008, and a number
> of external customers and users are in production today.  That said,
> even a solid distributed database needs to be backed up as there are
> many reasons to have backups.
>
> The easiest and best way to back up Riak is, if you are using bitcask
> (the default) as the backend, to simply back up the filesystem of your
> nodes with whatever backup system you use for the rest of your
> systems.  Bitcask uses append-only files, and once it closes a file it
> will never change the content of that file again.  This makes it very
> backup-friendly.
>
> If you are using a backend with less backup-friendly disk format (such
> as innostore) then you can use the "riak-admin backup" command at
> either the per-node or whole-cluster level to produce a
> backend-independent snapshot that can be loaded back in via
> "riak-admin restore".  This method is much slower, will impose
> additional load on your cluster when running, and requires that you
> have a place to put the generated snapshot.  However, it will work
> regardless of backend and is also a simple if heavyweight way to
> migrate to a cluster with a different configuration.
>
> -Justin
>
> _______________________________________________
> riak-users mailing list
> riak-users at lists.basho.com
> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>




More information about the riak-users mailing list