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https://issues.apache.org/jira/browse/STORM-1859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15296134#comment-15296134
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ASF GitHub Bot commented on STORM-1859:
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Github user arunmahadevan commented on the pull request:
https://github.com/apache/storm/pull/1437#issuecomment-220928223
+1
> Late tuples are not acked in windowed mode
> ------------------------------------------
>
> Key: STORM-1859
> URL: https://issues.apache.org/jira/browse/STORM-1859
> Project: Apache Storm
> Issue Type: Bug
> Reporter: Balazs Kossovics
>
> The current implementation simply ignores late tuples without acking
> them, which causes timeouts and replays after
> TOPOLOGY_MESSAGE_TIMEOUT_SECS. A tuple which was late at a some time
> is going to be late at any moment in the future, so there is no point
> of replaying it, because the lingering late tuples will just block the
> topology (especially if TOPOLOGY_MAX_SPOUT_PENDING is set).
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