John Firth created KAFKA-2572:
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             Summary: zk connection instability, perhaps precipitated by zk 
client timeout during rebalance
                 Key: KAFKA-2572
                 URL: https://issues.apache.org/jira/browse/KAFKA-2572
             Project: Kafka
          Issue Type: Bug
          Components: zkclient
    Affects Versions: 0.8.2.1
         Environment: zk version 3.4.6,
CentOS 6, 2.6.32-504.1.3.el6.x86_64
            Reporter: John Firth


On two occasions, have seen zk session expiry, followed by a timeout during a 
consumer rebalance following this expiry, followed by multiple successive zk 
session expiries. Comparing these with a case in which a new stable zk session 
was created following a session expiry, the timeout during rebalance is not 
seen in the successful case.




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