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Multiply Went from Datomic to XTDB to Rama


“With databases, the conversation always started with ‘what are we able to do?’. I rarely find myself asking what Rama is able to support, and rather ‘how?’. The requirements of the application dic…

Datomic was appealing for the first version for its immutable data model and expressive Datalog-based query language, attractive and intuitive concepts for most Clojure programmers. Finally, since Rama applications are based on event sourcing, with all data coming in on distributed logs called “depots”, Multiply always has the flexibility to recompute PStates from scratch if they need to aggregate or index it in new ways in the future. Rama has comprehensive monitoring built-in, which Multiply augmented with basic node telemetry to track things like disk space and CPU load.

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