Hi Massimiliano, Answers (and explanations) inline below:
On 16 Dec 2013, at 12:20, Massimiliano Ciancio <mcian...@gmail.com> wrote: > Hi all, > I've two questions about new Riak 2.0 sets: > 1) how many elements can be added to a set? Are 1-10-100 millions of > keys, about 20-30 chars each, reasonable for a single set? All the new data types in riak 2.0 are really just riak objects. Anything that you wouldn’t do with a regular riak key-value, you shouldn’t do with the data types. Think of them as a way for us to implement your merge functions for you, in the server. We expose an operations based API (add/remove element) but at the node level, this is just a riak object operation, so the full object is read from disk, and the update applied, and the result replicated. Smaller objects are better. Millions of elements in a Set is a bad idea. If you need big sets like that, consider sharding over multiple keys. > 2) is it possible to do union/intersection/diffs with a riak set? No, not yet. I’d love to add more Redis-like functionality to our data types in future releases. > Any update about 2.0 availability? You can get pre5[1] now to start experimenting with. We’re working toward the first RC for 2.0 at the moment, expect something final in the first quarter of 2014. Cheers Russell [1] http://docs.basho.com/riak/2.0.0pre5/downloads/ > Thanks > MC > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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