well, except that AWS doesn't let you coordinate AZ's between customers [1] [1] ... | Hacker News

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		milkshakes on Nov 23, 2011 \| parent \| context \| favorite \| on: Heroku Postgres: SQL Database-as-a-Service well, except that AWS doesn't let you coordinate AZ's between customers [1] [1] http://aws.amazon.com/ec2/faqs/#How_can_I_make_sure_that_I_a...

cperciva on Nov 23, 2011 | [–]

Maybe not officially, but I believe "is in the same AZ" is an equivalence relation, so once you've figured out the appropriate permutation function...

ceejayoz on Nov 23, 2011 | [–]

I get 1 ms or lower latency between AZs.

stock_toaster on Nov 23, 2011 | [–]

I get about 1.5ms to 1.6ms ping latency between AZs and about .3ms to .4ms between nodes in the same AZ (west-1).

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