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From "Munagala V. Ramanath (JIRA)" <j...@apache.org>
Subject [jira] [Created] (APEXMALHAR-2419) KafkaSinglePortExactlyOnceOutputOperator fails on recovery
Date Tue, 21 Feb 2017 14:37:44 GMT
Munagala V. Ramanath created APEXMALHAR-2419:
------------------------------------------------

             Summary: 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


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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