Guozhang Wang created KAFKA-3938:
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             Summary: Fix consumer session timeout issue in Kafka Streams
                 Key: KAFKA-3938
                 URL: https://issues.apache.org/jira/browse/KAFKA-3938
             Project: Kafka
          Issue Type: Bug
          Components: streams
            Reporter: Guozhang Wang
            Assignee: Guozhang Wang


After KIP-62 / KAFKA-3888 is merged in, Kafka Streams should leverage this new 
feature to fix the session timeout issue that can be caused by:

1. long rebalance period due to state store restoration.
2. exceptional long processing time for a batch of records.

Also we need to consider:

1. state store directory locking mechanism between rebalances while one 
instance is grabbing tasks from another instance on the same machine.
2. exceptional handling in Kafka Streams: what should we really expose to users 
and what should be handled automatically?



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