[ 
https://issues.apache.org/jira/browse/KAFKA-8882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16932295#comment-16932295
 ] 

Jakub commented on KAFKA-8882:
------------------------------

hi [~vvcephei] ,

thanks for your answer. Here are all state transitions that I'm getting:
{code:java}
INFO: State transition from CREATED to REBALANCING
INFO: State transition from REBALANCING to RUNNING
INFO: State transition from RUNNING to ERROR
INFO: State transition from ERROR to PENDING_SHUTDOWN
{code}
After that all I see is
{code:java}
Connection to node 0 (localhost/127.0.0.1:9092) could not be established. 
Broker may not be available
{code}
and once in a while
{code:java}
Metadata update failed
org.apache.kafka.common.errors.TimeoutException: Timed out waiting for a node 
assignment.
{code}
"Already in the pending shutdown state, wait to complete shutdown" is not 
displayed.

> It's not possible to restart Kafka Streams using StateListener
> --------------------------------------------------------------
>
>                 Key: KAFKA-8882
>                 URL: https://issues.apache.org/jira/browse/KAFKA-8882
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 2.2.1
>         Environment: Linux, Windows
>            Reporter: Jakub
>            Priority: Major
>
> Upon problems with connecting to a Kafka Cluster services using Kafka Streams 
> stop working with the following error message:
> {code:java}
> Encountered the following unexpected Kafka exception during processing, this 
> usually indicate Streams internal errors (...)
> Caused by: org.apache.kafka.common.errors.TimeoutException: Aborted due to 
> timeout
> (...)
> State transition from PENDING_SHUTDOWN to DEAD
> (...)
> All stream threads have died. The instance will be in error state and should 
> be closed.
> {code}
>  
> We tried to use a StateListener to automatically detect and work around this 
> problem. 
>  However, this approach doesn't seem to work correctly:
>  # KafkaStreams correctly transitions from status Error to Pending Shutdown, 
> but then it stays in this status forever.
>  # Occasionally, after registering a listener the status doesn't even change 
> to Error.
>  
> {code:java}
> kafkaStreams.setStateListener(new StateListener() {
>       public void onChange(State stateNew, State stateOld) {
>               if (stateNew == State.ERROR) {
>                       kafkaStreams.cleanUp();
>                       kafkaStreams.close();
>                       
>               } else if (stateNew == State.PENDING_SHUTDOWN) {                
>         
>                       // this message is displayed, and then nothig else 
> happens
>                       LOGGER.info("State is PENDING_SHUTDOWN");
>                       
>               } else if (stateNew == State.NOT_RUNNING) {
>                       // it never gets here
>                       kafkaStreams = createKafkaStreams();
>                       kafkaStreams.start();
>               }
>       }
> });
> {code}
>  
> Surprisingly, restarting KafkaStreams outside of a listener works fine.
>  I'm happy to provide more details if required.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

Reply via email to