Or just do an exists set operation in redis. Or use a bloom filter. (that you kept in Riak)
Or use your own binary encoding n keys long and flip bits. (that you kept in Riak) Scanning a list of keys in Riak might be one of the most inefficient ways to do it. Also I don't like to keep values in Riak that mutate in some unbounded way due to compaction issues. -alexander @siculars http://siculars.posterous.com Sent from my rotary phone. On May 9, 2012 1:13 PM, "Shuhao Wu" <ad...@thekks.net> wrote: > Without reading all the emails.. why can't you just cache the keys in an > object and maintain that list? The you could check against that list. This > way you don't have to go through every object in riak. > > Shuhao > On May 2, 2012 2:47 PM, "Tim Haines" <tmhai...@gmail.com> wrote: > >> Hey guys, >> >> Still a relative newbie here. >> >> I was hoping to be able to setup a MapReduce job that I could feed 1000 >> keys to, and have it tell me of the 1000, which keys exist in the bucket. >> I was hoping this could use the key index (such a thing exists right?) >> without having to read the objects. >> >> The methods I've tried for doing this fail when the first non-existing >> key is found though. >> >> Is there a way to do this? >> >> Or alternatively, is there a way to check for the presence of one key at >> a time without riak having to read the object? >> >> Cheers, >> >> Tim. >> >> _______________________________________________ >> 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 > >
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