Hi, I am pleased to announce the TAggregator [ https://github.com/juwi/HBase-TAggregator]. It is a coprocessor capable of returning an interval based map of aggregates. So far it supports max,min,avg and sum. It can handle timestamps embedded in the key (as integers) or, as an alternative timestamps using HBase's timestamp field.
The code still has some rough edges that need cleaning, but overall it shouldn't have any pitfalls. If this is something you're interested in, feel free to give it a try on 0.98/0.99. If you want to contribute/have ideas for cool features, let me know or just send a pull request. Regards Julian
