Extending the "value" object during production
tmaus
Lets assume that I need to extend my "value" object by a couple of
primitives or even complex objects.
How could this be achieve during cluster runtime ?
gxm
well. Both are quite adept at versioning.
Both are also supported by Voldemort, however, this support requires
you to use the generated objects when interacting with Voldemort.
I prefer using POJOs that don't know anything about Voldemort and
serialization.
To do that, I implement the voldemort.serialization.Serializer
interface, which limits the scope of the generated code in my project.
You will also need to implement a SerializerFactory to return the
correct serializers.
Tatu Saloranta
> I've achieved this using Protocol Buffers, and you could use Thrift as
> well. Both are quite adept at versioning.
> Both are also supported by Voldemort, however, this support requires
> you to use the generated objects when interacting with Voldemort.
>
> I prefer using POJOs that don't know anything about Voldemort and
> serialization.
> To do that, I implement the voldemort.serialization.Serializer
> interface, which limits the scope of the generated code in my project.
> You will also need to implement a SerializerFactory to return the
> correct serializers.
Related to this, I was wondering how many users are using true JSON
for storing data? (not JSON-like format Voldemort supports, as it
stores things bit different internally).
Reason I am asking this is that I work with Jackson JSON processor,
and I know many use it with other K/V stores (MongoDB, CouchDB), but I
haven't heard from many Voldemort users. I assume this is not
necessarily due to lack of usage, but it would be nice to know, since
K/V store data binding is becoming a very important use domain, and we
want to support it best we can.
-+ Tatu +-
Tom Chen
We use json strings for our message clobs at my startup. We migrated
from storing our messages from mysql to voldemort. We use a simple
string, and string storage to give us flexibility for changes.
Tom
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Tom Chen
Software Architect
GOGII, Inc
t...@gogii.net
650-468-6318
Tatu Saloranta
> Hi Tatu,
>
> We use json strings for our message clobs at my startup. We migrated
> from storing our messages from mysql to voldemort. We use a simple
> string, and string storage to give us flexibility for changes.
Yeah, I figured this is common, similar to using BLOBs for xml or json.
-+ Tatu +-