On Sat, Jul 3, 2010 at 1:17 PM, Nolan Darilek <no...@thewordnerd.info>wrote:
> On 07/03/2010 01:09 PM, Nolan Darilek wrote: > >> On 07/02/2010 01:52 PM, Serge Wroclawski wrote: >> >>> Similarly, Ian Dees and I have written a server using MongoDB, which >>> also provides functionality such as auto-sharding and built in >>> map/reduce. >>> >>> >> Is this work available anywhere? How did you find performance to be, and >> to what uses did you put it? >> >> I've done some experiments creating a LibOSM MongoDB backend and found its >> performance fairly bad, but I don't have the most optimal server for it, and >> probably didn't use MongoDB to its limits. If you experienced good >> performance for real-time operations then I'd be very interested in seeing >> how you managed it so I might adopt the techniques and see if I have any >> better luck. >> >> It seemed to me that a dump of the entire planet would require a >> substantial server to serve up, so I abandoned the work, but would very much >> like to revive it if it's at all workable. >> >> The code is here: http://github.com/iandees/mongosm <http://github.com/iandees/mongosm>It took several days to import a planet file. The majority of the CPU time was spent serializing/deserializing BSON in Python and the Mongo server had very little CPU time so if I use a language with a faster BSON implementation it might be faster. Serge was working on a way to import diff files to maintain mintutely updates. I was working on an HTTP API interface.
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