bright chen created APEXMALHAR-2359:
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Summary: Optimise fire trigger to avoid go through all data
Key: APEXMALHAR-2359
URL: https://issues.apache.org/jira/browse/APEXMALHAR-2359
Project: Apache Apex Malhar
Issue Type: Improvement
Reporter: bright chen
Assignee: bright chen
KeyedWindowedOperatorImpl.fireNormalTrigger(Window, boolean) currently go
through each window and key to check value. The data collection could be very
huge as the discard period could be relative long time. If fireOnlyUpdatedPanes
is false probably there don't have much space to improve. But if
fireOnlyUpdatedPanes is true, we don't have to go through the whole data
collection. We only need to go through the window and key which handle after
last trigger.
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