hi Ryan:
Thanks for the link. I read the slides, could you please provide some more details on how the temporal aggregation is implemented? do you use time+granularity as the key ? or as column names ? Thanks Yang In reply to this post by Aaron Turner 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 -ryan On Thu, Mar 31, 2011 at 3:56 PM, Aaron Turner <[hidden email]> wrote: > I've been looking at replacing our PostgreSQL backend for RTG (a SNMP > based polling and graphing solution for network traffic/ports) with > something using Cassandra in order to solve our scalability and > redundancy requirements. Based on a lot of what I've read, Cassandra > is an ideal data store for this time series data. In fact, Eric > Evans in his presentation on the Cassandra home page suggests that > this kind of use case is perfect for Cassandra. > > So this got me wondering if someone had already come up with a CF > model for this kind of data, including daily/weekly/monthly/yearly > rollups. Perhaps there's even an open source project or two > implementing this sorta thing? I've found flewton > (https://github.com/flewton/flewton), which is possibly relevant, but > my Java skills are pretty non-existent so I'm having a hard time > figuring it out. > > Thanks, > Aaron > > -- > Aaron Turner > http://synfin.net/ 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" > ... [show rest of quote] -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/RTG-MRTG-Cricket-replacement-using-Cassandra-tp6229322p6388192.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.
