Guozhang Wang created KAFKA-2802:
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             Summary: Add integration tests for Kafka Streams
                 Key: KAFKA-2802
                 URL: https://issues.apache.org/jira/browse/KAFKA-2802
             Project: Kafka
          Issue Type: Sub-task
            Reporter: Guozhang Wang


We want to test the following criterion:

1. Tasks are created / migrated on the right stream threads.
2. State stores are created with change-log topics in the right numbers and 
assigned properly to tasks.
3. Co-partitioned topic partitions are assigned in the right way to tasks.
4. At least once processing guarantees (this include correct state store 
flushing / offset committing / producer flushing behavior).

Under the following scenarios:

1. Stream process killed (both -15 and -9)
2. Broker service killed (both -15 and -9)
3. Stream process got long GC.
4. New topic added to subscribed lists.
5. New partitions added to subscribed topics.
6. New stream processes started.



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