Continuous computation is the sort of thing Storm (https://github.com/nathanmarz/storm) can help with.
And good news everybody, storing the output from Storm is the sort of thing Cassandra can help with http://www.youtube.com/watch?v=cF8a_FZwULI Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 20/05/2012, at 6:17 AM, Janne Jalkanen wrote: >> 2. I know I have counter columns. I can do sums. But can I do averages ? > > One counter column for the sum, one counter column for the count. Divide for > average :-) > > /Janne