Todd -

> Does anyone have any experience with using the policy in this manner?
My general feeling is that not many people are using slice as there has
been very little mailing list traffic regarding it's usage. Be sure to let
us know how it goes!

Thanks,
Rick


On Sun, Mar 9, 2014 at 12:54 PM, Todd Nine <t...@spidertracks.com> wrote:

> Hi all,
>   We're migrating from a Cassandra based JPA adapter to Amazon's RDS.  In
> order to do this, we want a no downtime migration.  To do this, we would
> need the following flow.
>
> 1) Start writing to both systems.  Cassandra is still the authoritative
> record, and records are replicated to RDS. All queries will still be served
> from Cassandra on read.
>
> 2) In the background, read all records from Cassandra and write them to
> RDS.  Use update timestamps to ensure we don't overwrite newly updated
> data.
>
> 3) Switch our read path (probably with a new deployment configured to only
> read from RDS)
>
>
> I've been looking at the Slices documentation, and it seems like defining a
> Data Replication Policy will perform the dual writes I need in steps 1) and
> 2).  Does anyone have any experience with using the policy in this manner?
>
> Thanks in advance,
> Todd
>



-- 
*Rick Curtis*

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