braintree的MySQL迁移Postgresql遇到的问题及解决方案
https://www.braintreepayments.com/braintrust/scaling-postgresql-at-braintree-four-years-of-evolution
一个酷酷的网页
https://www.braintreepayments.com/about
link2
https://speakerdeck.com/pgr0ss/high-availability-at-braintree