[GitHub] storm issue #2480: STORM-2867: Add consumer lag metrics to KafkaSpout

[srdo]

Github user srdo commented on the issue:

    https://github.com/apache/storm/pull/2480
  
    @omkreddy This LGTM. Could you open a PR against master as well, we usually 
put features on that branch before merging to the other versions?


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