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How do I implement a transparent high availability database fail-over solution for my website?

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migrated from stackoverflow.com Oct 21 '10 at 1:17

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closed as not a real question by TomTom, Nick Kavadias, sysadmin1138, splattne Oct 21 '10 at 8:33

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This is entirely database dependent - each vendor does it differently, if at all. Specify a database if you want a useful answer. –  Oded Oct 20 '10 at 13:17

2 Answers 2

The global answer to cover each and every single possible scenario is:

Clustering

That's about as specific of an answer as you can get without providing at least your operating system and choice of DBMS.

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You could utilize Amazon's Cloudfront, Load Balancing, and Auto Scaling features with their RDS product.

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