The client might not support that, I don't know. I know the Python client (at least the version I'm using) also does a full GET of the object.
Here's the kicker though, I'm using LevelDB for the backend and LevelDB is notorious for having poor read performance when you're trying to GET a key that doesn't exist (checking for existence). So, don't do it if you're using LevelDB. Bitcask is another story though, since all the keys are in memory so that lookup is constant time (I believe, unless your key space is going into swap, but that shouldn't happen). On Jul 28, 2012, at 11:44 AM, Ukyo Virgden wrote: > Hi, > > Just installed riak and trying to get adjusted. Having looked at the java > client, I could not tell if there' a way to check key exixtence. What I need > to do is to check if a key exists and put it if it doesn't. In HTTP request > from curl, a HEAD request instead of a GET gives the result I need. > > How can I check the existence of a key from java client without making a full > fetch? > > Thanks. > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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