Meguro is a map/reduce engine built on Spidermonkey inspired by the internal map/reduce engine inside of CouchDB, but meant to be database agnostic, running with multiple input types. It currently supports line by line input and tokyo cabinet hash databases as input types, with an interface for more in the future.
It is called Meguro after a neighborhood in Tokyo, since the core datastore that is used as the map and reduce storage is Tokyo Cabinet. The Tokyo Cabinet key value store was also the first supported input type.
Please check out the Meguro home page for more details.
0.5.5
- Added support for handling bad UTF8 (strings that are Spidermonkey cannot allocate)
0.5.4
- Strings are now UTF8 by default