I’m not very sure how I’ve managed to be the last to the Riak 0.13 party :(. And I can tell you it is a big party.
Riak 0.13, ☞ announced a couple of days ago, brings quite a few new exciting features:
- Riak search
- MapReduce improvements
- Bitcask storage backend improvements
- improvements to the riak_code and riak_kv modules — the building blocks of Dynamo-like distributed systems — and better code organization allowing easier use of these modules
While everything in this release sounds like an important step forward for Riak, what sets it aside the Riak search a feature that is currently unique in the NoSQL databases space.
Riak search is using Lucene and builds a Solr like API on top of it (nb I think that reusing known interfaces and protocols is most of the time the right approach).
At a very high level, Search works like this: when a bucket in Riak has been enabled for Search integration (by installing the Search pre-commit hook), any objects stored in that bucket are also indexed seamlessly in Riak Search. You can then find and retrieve your Riak objects using the objects’ values. The Riak Client API can then be used to perform Search queries that return a list of bucket/key pairs matching the query. Alternatively, the query results can be used as the input to a Riak MapReduce operation. Currently the PHP, Python, Ruby, and Erlang APIs support integration with Riak Search.
Riak Search shows a lot of great decisions made by the Basho team, as it avoids reinventing the wheel or creating some new protocols/interfaces. I’ve stressed these aspects a couple of times already, when writing that NoSQL databases should follow the Unix Philosophy and also when writing about how important NoSQL protocols are. Mathias Meyer has a ☞ post detailing why these are important.
Last, but not least the Ruby Riak ripple library ☞ got updated too, but not sure it supports all the new features in Riak 0.13.
Here is a Rusty Klophaus (Basho) talking about Riak search at Berlin Buzzwords NoSQL event:
- First post about Riak search Notes on scaling out with Riak and Riak search podcast dates back to December 14th, 2009, just a couple of days after setting up myNoSQL. (↩)