rackerlabs/blueflood — pull request #203 by gdusbabek (2014-01-15 17:29:05+00:00)
Title: Set rollups v2 - track individual items across rollups (up to 24h)

Modify set rollups to track individual items seen instead of counters.

This is done by hashing each object as it observed, and storing the hashes. hashes are then merged on rollup.

This puts SetRollup in the same class as TimerRollup in that full-resolution stores rollup objects rather than primitives.