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- From: Fredrik Möllerstrand <fredrik@xxxxxxxxxxxxxxx>
- To: "hbase-user@xxxxxxxxxxxxxxxxx" <hbase-user@xxxxxxxxxxxxxxxxx>, "core-user@xxxxxxxxxxxxxxxxx" <core-user@xxxxxxxxxxxxxxxxx>, "zohmg-user@xxxxxxxxxxxxxxxx" <zohmg-user@xxxxxxxxxxxxxxxx>, "dumbo-user@xxxxxxxxxxxxxxxx" <dumbo-user@xxxxxxxxxxxxxxxx>, "mapreduce-user@xxxxxxxxxxxxxxxxx" <mapreduce-user@xxxxxxxxxxxxxxxxx>, "hadoop@xxxxxxx" <hadoop@xxxxxxx>, "hadoop@xxxxxxx" <hadoop@xxxxxxx>
- Date: Thu, 25 Jun 2009 01:00:19 +0900
Hello, list!
I'm happy to announce Zohmg, a data store for aggregation of multi-dimensional
time series data built on top of Hadoop, Dumbo and HBase. Data is imported
with a mapreduce job and is exported through an HTTP API.
A typical use-case for Zohmg is the analysis of Apache log files. The analyst
would be interested in breaking down pageviews by path, user agent, country of
origin, etc. In-house at Last.fm, we have successfully demo'd an installation
that served access data in realtime for millions of paths broken down by
several dimension.
The README at http://github.com/zohmg/zohmg/blob/master/README contains an
example project to get you started.
You can browse the source at http://github.com/zohmg/zohmg/tree/master and get
the release tar ball from http://github.com/zohmg/zohmg/tarball/release-0.2.0
Zohmg works best on Hadoop 0.20.0 and HBase 0.20.0-alpha slash trunk.
Help is available on IRC -- #zohmg on Freenode -- and at the user mailing
list: http://groups.google.com/group/zohmg-user
We're happy to accept contributions! Fork the code, use the issue tracker at
http://github.com/zohmg/zohmg/issues and join the dev mailing list:
http://groups.google.com/group/zohmg-dev
Cheers,
Fredrik
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