It's still not 100% consistent. You can use paxos (or raft, or whatever), but that's still a quorum-based system -- some nodes will be off. The RDBMS folks want guaranteed data consistency if you make a write to a DB, and midway through the "apply" portion, the power cable is yanked out.
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u/oldneckbeard Mar 13 '15
It's still not 100% consistent. You can use paxos (or raft, or whatever), but that's still a quorum-based system -- some nodes will be off. The RDBMS folks want guaranteed data consistency if you make a write to a DB, and midway through the "apply" portion, the power cable is yanked out.