On 22 Jul 2016, at 09:12, Henning Verbeek <hankipa...@gmail.com> wrote:
> Alex, > thanks for the very quick response. > > On Thu, Jul 21, 2016 at 5:36 PM, Alex Moore <amo...@basho.com> wrote: >>> I'm beginning to think that I'll need to remodel my data and use CRDTs >>> for individual fields such as the `TreeMap`. Would that be a better >>> way? >> >> >> This sounds like a plausible idea. If you do a lot of possibly conflicting >> updates to the Tree, then a CRDT map would be the way to go. You could >> reuse the key from the main object, and just put it in the new >> buckettype/bucket. > > Looking at the > [documentation](http://docs.basho.com/riak/kv/2.1.4/developing/data-types/maps/) > I assume there are no limits to the amount of entries, right? There is a size limit as a map is just a riak object like any other. We’re working on decomposed CRDTs, where the Set/Map/etc are split across many keys. We expect Sets are coming soon, Maps are a little further out. > >> If you don't need to update the tree much, you could also just serialize the >> tree into it's own object - split up the static data and the often updated >> data, and put them in different buckets that share the same key. > > The tree is built once and read often, rarely appended to. The problem > with splitting up the object is that the tree makes up about 95% of > the size, so unless I can split up the tree, it wont help much. Splitting up CRDTs that are related is probably going to be a problem too, as they need to share some common causal information to merge correctly. See above. > > Thanks again! > Henning > > PS: It'd be great to have a `Converter` that can be instructed to map > fields to CRDT through annotations :) Is there not a java converter that maps an object to a CRDT map already? That would seem like a nice thing to have, though you’d be limited in the types of your fields to sets/registers/booleans/counters/maps it should work nicely. > > -- > My other signature is a regular expression. > http://www.pray4snow.de > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
