read more<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"In the first post of this three part series I talked about distributed transactional databases being the Holy Grail of database systems. Among other things the promise of such systems is to provide on-demand capacity, continuous availability and geographically distributed operation. But the historical approaches to building distributed transactional databases have involved unacceptable trade-offs, and as a result general purpose databases systems predicated on a single-server architecture have dominated the industry for decades.
\nIn our quest for the Holy Grail of databases we acknowledge that there are folks who have given up on the highly desirable characteristic of transactional consistency in favor of a distributed operation. That is a trade-off that may be attractive if you can’t find a way to scale-out transactions, but it is a drastic choice that moves a lot of complexity and cost up the application stack. If there is a way to scale out transactional databases then that is clearly a much better outcome. Our Holy Grail discussion is specifically about distributed transactional databases because if such a thing can be built without a substantial downside then no one would want any other distributed data store.<\/p>\n
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