Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/2090#discussion_r113368411
--- Diff:
storm-client/src/jvm/org/apache/storm/windowing/TimeTriggerPolicy.java ---
@@ -62,7 +63,9 @@ public void reset() {
@Override
public void start() {
- executorFuture = executor.scheduleAtFixedRate(newTriggerTask(),
duration, duration, TimeUnit.MILLISECONDS);
+ // initial delay is slightly less than the duration so that the
initial tuples wont't expire due to time drift
+ long initialDelay = duration - Math.min((long) (duration * .1),
100);
+ executorFuture = executor.scheduleAtFixedRate(newTriggerTask(),
initialDelay, duration, TimeUnit.MILLISECONDS);
--- End diff --
Subsequent scheduling will happen after "duration" which would be the
window sliding interval.
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