JoinConsumerGroup silently fails if topics are not created

[bnekolny]

The issue I'm running into is on our local development boxes, I'd like to handle the situation where the partitions are not yet set up for a Kafka topic:

[Sarama] 2015/03/12 18:11:25 [consumer/a0103be9d1f2] Currently registered consumers: 1
[Sarama] 2015/03/12 18:11:25 [consumer/a0103be9d1f2] session :: Started topic consumer
[Sarama] 2015/03/12 18:11:25 [consumer/a0103be9d1f2] session :: FAILED to get list of partitions: zk: node does not exist

I believe that is saying that it's registering the consumer, but zookeeper doesn't know about the partitions for the topic. Unfortunately it seems to print this message to the stdout log and continue on. There don't appear to be any messages in any error channels or any errors coming back as this is returned form a go routine.

It would be great to detect if this scenario has occurred, and be able to handle the case where my consumers come up before topics and partitions are created (for local development with docker in particular).