Ewen Cheslack-Postava created KAFKA-2742:
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             Summary: SourceTaskOffsetCommitter does not properly remove commit 
tasks when they are already in progress
                 Key: KAFKA-2742
                 URL: https://issues.apache.org/jira/browse/KAFKA-2742
             Project: Kafka
          Issue Type: Bug
          Components: copycat
            Reporter: Ewen Cheslack-Postava
            Assignee: Ewen Cheslack-Postava
             Fix For: 0.9.0.0


The current implementation is relying on ScheduledExecutorService to cancel the 
task, but this doesn't handle in-progress tasks and can result in stopping 
source tasks not completing a final offset commit before considering the task 
fully stopped. This can allow rebalancing to proceed before offsets are fully 
committed.



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