russelldb/count — pull request #1 by russelldb (2013-03-31 07:13:33+00:00)
Title: Background rollup

When some threshold of increments is detected, have a pool worker
roll up those increments into the PN-Counter, and delete all
accounted for keys. Trying to keep the op log small so a read
doesn't need to fold over too many keys at a time.

Switch to eleveledb, hanoidb was deadlocking on merge after a few thousand writes.