showuon commented on a change in pull request #10917:
URL: https://github.com/apache/kafka/pull/10917#discussion_r659525237
##########
File path:
streams/src/main/java/org/apache/kafka/streams/kstream/internals/KStreamKStreamJoin.java
##########
@@ -186,12 +190,17 @@ public void process(final K key, final V1 value) {
@SuppressWarnings("unchecked")
private void emitNonJoinedOuterRecords(final
WindowStore<KeyAndJoinSide<K>, LeftOrRightValue> store) {
+ if (minTime.minTime >= maxObservedStreamTime.get() - joinAfterMs -
joinBeforeMs - joinGraceMs) {
+ return;
+ }
+
try (final KeyValueIterator<Windowed<KeyAndJoinSide<K>>,
LeftOrRightValue> it = store.all()) {
while (it.hasNext()) {
final KeyValue<Windowed<KeyAndJoinSide<K>>,
LeftOrRightValue> record = it.next();
final Windowed<KeyAndJoinSide<K>> windowedKey = record.key;
final LeftOrRightValue value = record.value;
+ minTime.minTime = windowedKey.window().start();
Review comment:
Nice explanation! reset to `Long.MAX_VALUE` + 1
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