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Posted to dev@kafka.apache.org by "Konstantine Karantasis (Jira)" <ji...@apache.org> on 2019/11/14 01:54:00 UTC

[jira] [Created] (KAFKA-9184) Redundant task creation after worker fails to join a specific group generation

Konstantine Karantasis created KAFKA-9184:
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             Summary: Redundant task creation after worker fails to join a specific group generation
                 Key: KAFKA-9184
                 URL: https://issues.apache.org/jira/browse/KAFKA-9184
             Project: Kafka
          Issue Type: Bug
          Components: KafkaConnect
    Affects Versions: 2.3.2
            Reporter: Konstantine Karantasis
            Assignee: Konstantine Karantasis
             Fix For: 2.3.2



First reported here: 

https://stackoverflow.com/questions/58631092/kafka-connect-assigns-same-task-to-multiple-workers

There seems to be an issue with task reassignment when a worker rejoins after an unsuccessful join request. The worker seems to be outside the group for a generation but when it joins again the same task is running in more than one worker



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