Github user Lewuathe commented on the pull request:
https://github.com/apache/storm/pull/338#issuecomment-65977818
There does not seems to be consumer API that throws
`UnknownTopicOrPartitionException`.
[UnknownTopicOrPartitionException in
Kafka](https://github.com/apache/kafka/search?utf8=%E2%9C%93&q=UnknownTopicOrPartitionException)
Can I use this exception for checking existence of topics from consumer?
Anyway `DynamicBrokerReader` already uses [Curator](http://curator.apache.org/)
API which access specific ZK path directly. I think it is not problem to lookup
ZK path from curator.
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