Shopify/sarama — pull request #184 by eapache (2014-11-15 13:41:01+00:00)
Title: prod: explicitly log every state change

I worked out the formal state machines of the relevant goroutines and stuck a
log message in at every state change. This should help with debugging #179.

The logs should still only trigger on broker rebalance or super-heavy traffic,
so normal operation should be quiet.

@wvanbergen