[jira] [Created] (KAFKA-1072) Allow mulitple topics selected with a TopicFilter to be balanced among consumers

["Jason Rosenberg (JIRA)" <ji...@apache.org>]

Jason Rosenberg created KAFKA-1072:
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             Summary: Allow mulitple topics selected with a TopicFilter to be balanced among consumers
                 Key: KAFKA-1072
                 URL: https://issues.apache.org/jira/browse/KAFKA-1072
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.8
            Reporter: Jason Rosenberg


Currently, there is no parallelism used when consuming a set of topics selected by a white list topic filter, if those topics all have a partition count of 1.  Currently, all topics that match the filter get assigned to the same thread on the same consumer, even though there may be plenty of different topics (and therefore many partitions to be consumed from).

There are often good reasons to use a partition count of only 1 (e.g. to preserve message ordering).  For arbitrary scalability, over a large number of topics, this would be a great benefit to be able to consume topics balanced over a set of available consumers.



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