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Posted to dev@kafka.apache.org by "Ewen Cheslack-Postava (JIRA)" <ji...@apache.org> on 2015/12/17 23:01:46 UTC

[jira] [Created] (KAFKA-3008) Connect should parallelize task start/stop

Ewen Cheslack-Postava created KAFKA-3008:
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             Summary: Connect should parallelize task start/stop
                 Key: KAFKA-3008
                 URL: https://issues.apache.org/jira/browse/KAFKA-3008
             Project: Kafka
          Issue Type: Bug
          Components: copycat
    Affects Versions: 0.9.0.0
            Reporter: Ewen Cheslack-Postava
            Assignee: Ewen Cheslack-Postava


The Herder implementations currently iterate over all connectors/tasks and sequentially start/stop them. We should parallelize this. This is less critical for {{StandaloneHerder}}, but pretty important for {{DistributedHerder}} since it will generally be managing more tasks and any delay starting/stopping a single task will impact every other task on the node (and can ultimately result in incorrect behavior in the case of a single offset commit in one connector taking too long preventing all of the rest from committing offsets).



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