On Thu, Mar 31, 2011 at 4:19 PM, Ryan King <r...@twitter.com> wrote: > We have a solution for time series data on cassandra at Twitter that > we'd like to open source, but it requires 0.8/trunk so we're not going > to release it until that's stable. > > See > http://www.slideshare.net/kevinweil/rainbird-realtime-analytics-at-twitter-strata-2011 >
Yeah, having high performance hierarchical aggregation would be awesome for this kind of application. I hate to re-invent the wheel, but it's not something I can really wait a long time either. I was planning on just manually inserting the same value into multiple rows rather then trying to build the aggregates off 5min data for weekly/monthly/yearly at query time. Other then: http://blog.insidesystems.net/basic-time-series-with-cassandra#more any other good references for storing time series data? On a side note: looks like the Perl API isn't being maintained well... how's the ruby API overall? stable? performance? Thanks! -- Aaron Turner http://synfin.net/ Twitter: @synfinatic http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & Windows Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. -- Benjamin Franklin "carpe diem quam minimum credula postero"
