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https://issues.apache.org/jira/browse/APEXMALHAR-2419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15878463#comment-15878463
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Munagala V. Ramanath commented on APEXMALHAR-2419:
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[~sandesh] Does "recovery is not happening" mean (a) This is the first run of
the operator and it has not gone down; or (b) This may be a restarted run but
we've finished replaying all the old windows are are now processing new windows
?
largestCompletedWindow will be -1 for (a) but not for (b)
> KafkaSinglePortExactlyOnceOutputOperator fails on recovery
> ----------------------------------------------------------
>
> Key: APEXMALHAR-2419
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2419
> Project: Apache Apex Malhar
> Issue Type: Bug
> Reporter: Munagala V. Ramanath
> Assignee: Sandesh
>
> The KafkaSinglePortExactlyOnceOutputOperator fails on recovery with the
> message: "Violates Exactly once. Not all the tuples received after operator
> reset."
> This is because of this check in endWindow():
> {code}
> if (!partialWindowTuples.isEmpty() && windowId >
> windowDataManager.getLargestCompletedWindow()) {
> throw new RuntimeException("Violates Exactly once. Not all the tuples
> received after operator reset.");
> }
> {code}
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