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Riak 0.8 Release Notes
Riak 0.8 is the first release of Riak with full support for map/reduce
processing exposed entirely via an HTTP/JavaScript interface. In summary:
- exposed javascript as a first class map/reduce query language
- map/reduce queries can be submitted via HTTP/JSON (default endpoint
is "/mapred")
- numerous fixes and tweaks to map/reduce query performance and
timeout behavior
Riak 0.8 also includes a number of minor improvements such as:
- improved handoff/rebalancing performance.
- added configuration parameter 'handoff_concurrency', which controls
how many vnodes per host can engage in handoff at once.
- added client_lib/, a python client for the 'raw' riak http
interface (based on by Jay Baird).
- statistics about node performance, VM state, and Riak cluster status
are now exposed over HTTP/JSON (default endpoint is "/stats")
- general stability improvements such as improved supervision for vnodes
and map/reduce processes
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