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Cosa è successo oggi a Foursquare 05.10.10

Per quasi mezza giornata Fousquare ha avuto problemi tecnici ai database e non è stato accessibile.
TechCrunch ci racconta che cosa è successo.

The "what happened" part is fairly technical. But basically it boils down to this: Foursquare data is supposed to be spread evenly over different database "shards" (think of it as database segments). At some point yesterday morning, things got uneven, with one shard getting way more data than the others. They tried to balance it out, but that didn't work, so they tried putting a new shard in play. Then all hell broke loose.