Re: [infinispan-dev] ISPN-359 and grouping entries for distribution
----- "Manik Surtani" <manik(a)jboss.org> wrote:
So thinking about this some more, it would seem that there is a bit
more to this. We can add the functionality easily enough, and add the
API to the Cache interface.
But would people would reasonably expect this kind of functionality
over Hot Rod as well? And would we need to think about exposing this
in Hot Rod too? Or would this kind of functionality be implemented in
the Hot Rod client if needed, so the protocol remains unchanged?
Does the affinity mean that all k,v pairs within an affinity group would be stored under
the same node in distribution mode? Or this a wrong assumption about how affinity works?
Judging by https://jira.jboss.org/browse/ISPN-312, the grouping is more directed at
flushing, but https://jira.jboss.org/browse/ISPN-359 suggests it could be used for
distribution.
Bearing in mind I need to clarify my understanding of affinity groups, baking it into the
protocol means that is less work for clients in terms of implementations. If you have 3
client impls, you'd have to implement it in all 3. If it's baked in protocol,
it's down to the server implementation.
On 13 Apr 2010, at 11:01, Manik Surtani wrote:
>
> On 13 Apr 2010, at 10:50, Sanne Grinovero wrote:
>
>> rightfull concern, I wouldn't personally have expected that but
I'm
>> biased as I follow this thread; it's not hard to imagine some
people
>> falling in this trap.
>
>
> Yes; how do we make sure no one falls into this trap? :) How
about:
>
> cache.affinityKey("Blah").put(k, v)
>
> The problem with "group" or even location/locality/colocation is
that they can all be misconstrued to mean "scope". With something
like "affinity", I suppose it is clearer?
>
> WDYT?
>
> Cheers
> --
> Manik Surtani
> manik(a)jboss.org
> Lead, Infinispan
> Lead, JBoss Cache
> http://www.infinispan.org
> http://www.jbosscache.org
>
>
>
>
>
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--
Manik Surtani
manik(a)jboss.org
Lead, Infinispan
Lead, JBoss Cache
http://www.infinispan.org
http://www.jbosscache.org
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