Jun Rao created KAFKA-474:
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             Summary: support changing host/port of a broker
                 Key: KAFKA-474
                 URL: https://issues.apache.org/jira/browse/KAFKA-474
             Project: Kafka
          Issue Type: Bug
          Components: core
            Reporter: Jun Rao
             Fix For: 0.8


Currently, the consumer client caches the host/port of a broker and never 
refreshes the cache. This means that if a broker changes to a different host, 
the consumer client won't be able to connect to the new host without a restart. 
One possibility is to change AbstractFetcherManager to maintain a map of 
<Broker, fetcher>, instead of <broker id, fetcher>.

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