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Posted to dev@kafka.apache.org by "j yeargers (JIRA)" <ji...@apache.org> on 2016/12/06 13:17:58 UTC

[jira] [Created] (KAFKA-4494) Significant startup delays in KStreams app

j yeargers created KAFKA-4494:
---------------------------------

             Summary: Significant startup delays in KStreams app
                 Key: KAFKA-4494
                 URL: https://issues.apache.org/jira/browse/KAFKA-4494
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.10.1.0
         Environment: AWS Linux ami, mac os
            Reporter: j yeargers


Often starting a KStreams based app results in significant (5-10 minutes) delay before processing of stream begins. 

Sample debug output: https://gist.github.com/jyeargers/e8398fb353d67397f99148bc970479ee

Topology in question: stream -> map -> groupbykey.aggregate -> print

Stream is JSON.



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