ZhangTao created FLINK-33524:
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Summary: IntervalJoinOperator 's judgment on late data has bug
Key: FLINK-33524
URL: https://issues.apache.org/jira/browse/FLINK-33524
Project: Flink
Issue Type: Bug
Components: API / DataStream
Affects Versions: 1.18.0
Environment: Due to the Watermark calculation method :
{code:java}
public void onPeriodicEmit(WatermarkOutput output) {
output.emitWatermark(new Watermark(maxTs - delayTime - 1L));
}{code}
data that was delayed by 1 millisecond in this method was incorrectly
determined
{code:java}
private boolean isLate(long timestamp) {
long currentWatermark = internalTimerService.currentWatermark();
return timestamp < currentWatermark;
} {code}
Reporter: ZhangTao
package:
org.apache.flink.streaming.api.operators.co;
class: IntervalJoinOperator
method:
isLate
When data with a 1-millisecond delay enters the judgment, an incorrect value
will be returned
{code:java}
private boolean isLate(long timestamp) {
long currentWatermark = internalTimerService.currentWatermark();
return timestamp < currentWatermark;
} {code}
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