On Tue, 24 Nov 2009 11:44:03 -0500 Ian Holsman <i...@holsman.net> wrote:
IH> I'd like to see how many times a specific user hits the site, IH> without having to add them up every time. Please excuse any inaccuracies here, I don't know Cassandra as well as Jonathan and many others here. Looking at the source, get_count over a super column seems to be inefficient for this purpose (in CassandraServer.java::multigetCountInternal()). Would optimizing that solve your need? I'd guess that even ConsistencyLevel.QUORUM can be pretty efficient if this is optimized (modulo the network latency), but ConsistencyLevel.ONE can definitely be faster if the intermediate columns are not created. I only found https://issues.apache.org/jira/browse/CASSANDRA-329 to be slightly related to this, so I don't think it's been considered before. Ted
