Krishna created KAFKA-3967:
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             Summary: Excessive Network IO between Kafka brokers 
                 Key: KAFKA-3967
                 URL: https://issues.apache.org/jira/browse/KAFKA-3967
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.8.2.2
            Reporter: Krishna


Excessive Network IO between Kafka brokers running on AWS in different AZ's as 
compared to actual message volume. 
We are producing  2-5 MB /Sec message volume however kafka seems to me moving 
20 gb /hr on network. The data volume has around 12 GB of message log on each 
nodes. Is this a natural behavior ?. I believe only the new messages will get 
replicated on non-leader nodes however here it seems that entire log is 
re-synced  





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