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Netflix: Run Consistency Checkers All The Time To Fixup Transactions

Todd Hoff about NoSQL and Cloud at Netflix:

You might have consistency problems if you have: multiple datastores in multiple datacenters, without distributed transactions, and with the ability to alternately execute out of each datacenter;  syncing protocols that can fail or sync stale data; distributed clients that cache data and then write old back to the central store; a NoSQL database that doesn’t have transactions between updates of multiple related key-value records; application level integrity checks; client driven optimistic locking.

Original title and link: Netflix: Run Consistency Checkers All The Time To Fixup Transactions (NoSQL databases © myNoSQL)

via: http://highscalability.com/blog/2011/4/6/netflix-run-consistency-checkers-all-the-time-to-fixup-trans.html