For the last couple weeks I’ve been working pretty heavily with Hbase. It decidedly has different usage patterns then Mysql, but since I don’t often get to use anything relational in Mysql because of performance reasons it hasn’t been to hard to wrap my head around. Of course having an Hbase committer a couple desks over has helped the process a lot.
So far the biggest issue has been getting access in PHP, we use thrift for that but the raw API leaves a lot to be desired. Luckily it wasn’t too big of a job to wrap things. Now I get joys of schema-less tables, atomic counters, great performance, and reliability. Now i just need to figure out how to get a small cluster for my own projects in a cost effective way.