Abacn commented on code in PR #21740:
URL: https://github.com/apache/beam/pull/21740#discussion_r899158211
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runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/WindmillTimeUtils.java:
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@@ -45,6 +45,9 @@ public static Instant windmillToHarnessTimestamp(long
timestampUs) {
// Windmill should never send us an unknown timestamp.
Preconditions.checkArgument(timestampUs != Long.MIN_VALUE);
Instant result = new Instant(divideAndRoundDown(timestampUs, 1000));
+ if (result.isBefore(BoundedWindow.TIMESTAMP_MIN_VALUE)) {
+ return BoundedWindow.TIMESTAMP_MIN_VALUE;
Review Comment:
This condition prevented timestamp overflow and broke unit test
WindmillTimerInternalsTest.testTimerDataToFromTimer(<timestamp>=BoundedWindow.TIMESTAMP_MIN_VALUE).
If this is intended behavior, should adjust the test case.
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