[jira] [Created] (KAFKA-8313) KafkaStreams state not being updated properly after shutdown

["Eric (JIRA)" <ji...@apache.org>]

Eric created KAFKA-8313:
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             Summary: KafkaStreams state not being updated properly after shutdown
                 Key: KAFKA-8313
                 URL: https://issues.apache.org/jira/browse/KAFKA-8313
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 2.2.0
         Environment: Single broker running on Ubuntu Linux.
            Reporter: Eric


I am running a KafkaStreams inside a DropWizard server and I am trying to detect when my stream shuts down (in case a non-recoverable error occurs).  I was hoping I could use KafkaStreams.setStateListener() to be notified when a state change occurs.  When I query the state, KafkaStreams is stuck in the REBALANCING state even though its threads are all DEAD.

 

You can easily reproduce this by doing the following:
 # Create a topic (I have one with 5 partitions)
 # Create a simple Kafka stream consuming from that topic
 # Create a StateListener and register it on that KafkaStreams
 # Start the Kafka stream
 # Once everything runs, delete the topic using kafka-topics.sh

When deleting the topic, you will see the StreamThreads' state transition from RUNNING to PARTITION_REVOKED and you will be notified with the KafkaStreams REBALANCING state.  That's all good and expected.  Then the StreamThreads transition to PENDING_SHUTDOWN and eventually to DEAD and the KafkaStreams state is stuck into the REBALANCING thread.  I was expecting to see a NOT_RUNNING state eventually... am I right?



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