Hi Alexandru, We @ EvidentSoftware (http://www.evidentsoftware.com/) have a monitoring solution that is storing timeseries information in Cassandra and also neo4j. Check this blogpost http://www.evidentsoftware.com/evident-clearstone-5-implements-cassandra-and-neo4j-as-an-elastic-data-store/. Can you share more details about your use case, so we can give you some guidance.
Prasanna *From:* Alexandru Dan Sicoe [mailto:sicoe.alexan...@googlemail.com] *Sent:* Wednesday, February 23, 2011 3:45 PM *To:* user@cassandra.apache.org *Subject:* Is Cassandra suitable for my problem? Hello, I'm currently doing my masters project. I need to store lots of time series data of any type (String, int, booleans, arrays of the previous) with a high writing rate(20MBytes/sec -> 170TBytes/year - note not running continuously) but less strict read requirements. This is monitoring data from a vast distributed network. The queries will be something like: give me this data between Time1 and Time2. The hardware that I have available is between 2 and 5 hosts. Questions: Should I use Cassandra? Suggestions of how to structure the data? (I read Cloudkick's blog https://www.cloudkick.com/blog/2010/mar/02/4_months_with_cassandra/ but I found that it doesn't give too much detail) Any help is much appreciated, Alex
