Your other option is to create tables 'WITH COMPACT STORAGE'. Basically if you use COMPACT STORAGE and create tables as you did before.
From an application standpoint, if you can't do sparse, wide rows, you break compatibility with 90% of Cassandra applications. So that rules out almost everything; if you can't provide the same data model, you're creating fragmentation, not pluggability.
I now call Cassandra compact storage 'c*' storage, and I call CQL3 storage 'c*++' storage. See debates on c vs C++ to understand why :).
I think if you look back through previous mailing list items you'll find
answers to this already but to summarize:
Tables created prior to 1.2 will continue to work after upgrade. New
tables created are not exposed by the Thrift API. It is up to client
developers to upgrade the client to pull the required metadata for
serialization and deserialization of the data from the System column
I don't know Netflix's time table for an update to Astyanax but I'm sure
they are working on it. Alternatively, you can also use the Datastax java
driver in your QA environment for now.
If you only need to access existing column families this shouldn't be an
On 3/3/13 6:31 PM, "Hiller, Dean" <Dean.Hiller@nrel.gov> wrote:
>I remember huge discussions on backwards compatibility and we have a ton
>of code using thrift(as do many people out there). We happen to have a
>startup bean for development that populates data in cassandra for us. We
>cleared out our QA completely(no data) and ran thisŠ.it turns out there
>seems to be no backwards compatibility as it utterly fails.
>From astyanax point of view, we simply get this (when going back to
>1.1.4, everything works fine. I can go down the path of finding out
>where backwards compatibility breaks but does this mean essentially
>everyone has to rewrite their applications? OR is there a list of
>breaking changes that we can't do anymore? Has anyone tried the latest
>astyanax client with 1.2.2 version?
>An unexpected error occured caused by exception RuntimeException:
>NoAvailableHostsException: [host=None(0.0.0.0):0, latency=0(0),
>attempts=0]No hosts to borrow from
Copy, by Barracuda, helps you store, protect, and share all your amazing
things. Start today: www.copy.com.