lukecwik commented on a change in pull request #15056:
URL: https://github.com/apache/beam/pull/15056#discussion_r660780333
##########
File path: sdks/java/core/src/main/java/org/apache/beam/sdk/state/Timer.java
##########
@@ -81,6 +81,9 @@
*/
void setRelative();
+ /** Clears a timer. */
Review comment:
```suggestion
/** Previously set timers will become unset. */
```
##########
File path:
runners/direct-java/src/main/java/org/apache/beam/runners/direct/WatermarkManager.java
##########
@@ -670,7 +670,8 @@ private synchronized void updateTimers(TimerUpdate update) {
existingTimersForKey.get(
deletedTimer.getNamespace(),
deletedTimer.getTimerId() + '+' +
deletedTimer.getTimerFamilyId());
-
+ System.err.println(
Review comment:
drop debugging statement
##########
File path:
sdks/java/core/src/test/java/org/apache/beam/sdk/transforms/ParDoTest.java
##########
@@ -4851,6 +4851,342 @@ public void onTimer2(
return PDone.in(input.getPipeline());
}
}
+
Review comment:
Should we cover the case where the timer becomes eligible and still
fires even though it is being cleared in the same bundle?
e.g.
set timer A for 1, set timer B for 2, advance time to 3, have timer A
callback clear B, B still fires since it is part of the same bundle
##########
File path:
runners/direct-java/src/main/java/org/apache/beam/runners/direct/StatefulParDoEvaluatorFactory.java
##########
@@ -173,48 +174,73 @@ public void processElement(WindowedValue<KeyedWorkItem<K,
KV<K, InputT>>> gbkRes
for (WindowedValue<KV<K, InputT>> windowedValue :
gbkResult.getValue().elementsIterable()) {
delegateEvaluator.processElement(windowedValue);
}
-
- final Instant inputWatermarkTime =
timerInternals.currentInputWatermarkTime();
PriorityQueue<TimerData> toBeFiredTimers =
new PriorityQueue<>(Comparator.comparing(TimerData::getTimestamp));
- gbkResult.getValue().timersIterable().forEach(toBeFiredTimers::add);
- while (!timerInternals.containsUpdateForTimeBefore(inputWatermarkTime)
+ Instant maxWatermarkTime = BoundedWindow.TIMESTAMP_MIN_VALUE;
+ Instant maxProcessingTime = BoundedWindow.TIMESTAMP_MIN_VALUE;
+ Instant maxSynchronizedProcessingTime =
BoundedWindow.TIMESTAMP_MIN_VALUE;
+ for (TimerData timerData : gbkResult.getValue().timersIterable()) {
+ toBeFiredTimers.add(timerData);
+ switch (timerData.getDomain()) {
+ case EVENT_TIME:
+ maxWatermarkTime = Ordering.natural().max(maxWatermarkTime,
timerData.getTimestamp());
+ break;
+ case PROCESSING_TIME:
+ maxProcessingTime = Ordering.natural().max(maxProcessingTime,
timerData.getTimestamp());
+ break;
+ case SYNCHRONIZED_PROCESSING_TIME:
+ maxSynchronizedProcessingTime =
+ Ordering.natural().max(maxSynchronizedProcessingTime,
timerData.getTimestamp());
+ }
+ }
+
+ while (!timerInternals.containsUpdateForTimeBefore(
+ maxWatermarkTime, maxProcessingTime,
maxSynchronizedProcessingTime)
&& !toBeFiredTimers.isEmpty()) {
+
TimerData timer = toBeFiredTimers.poll();
checkState(
timer.getNamespace() instanceof WindowNamespace,
- "Expected Timer %s to be in a %s, but got %s",
+ "Expected Timer %s to be in a %s, but got %s",
Review comment:
```suggestion
"Expected Timer %s to be in a %s, but got %s",
```
##########
File path: sdks/java/core/src/main/java/org/apache/beam/sdk/state/Timer.java
##########
@@ -81,6 +81,9 @@
*/
Review comment:
We should add documentation to Timer saying that set and/or clear calls
may only become visible after this bundle completes and may not be applied
immediately allowing for existing timers which have become eligible to still
fire.
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