[Solved] You wrote this code to schedule a punctuator but it never runs:context.schedule(Duration.ofSeconds(10), PunctuationType.STREAM_TIME, punctuator);What is the most likely reason? | Kafka

Kafka - Advanced Stream Processing

You wrote this code to schedule a punctuator but it never runs:

context.schedule(Duration.ofSeconds(10), PunctuationType.STREAM_TIME, punctuator);

What is the most likely reason?

ADuration.ofSeconds is not a valid method.

BNo new records are arriving to advance stream time.

CPunctuationType.STREAM_TIME is deprecated and ignored.

DThe punctuator callback is null.

Step-by-Step Solution

Solution:

Step 1: Check STREAM_TIME trigger requirements
STREAM_TIME punctuators trigger only when stream time advances, which requires new records.
Step 2: Identify why punctuator never runs
If no new records arrive, stream time does not advance, so the punctuator never triggers.
Final Answer:
No new records are arriving to advance stream time. -> Option B
Quick Check:
STREAM_TIME needs new records to trigger [OK]

Quick Trick: STREAM_TIME punctuators need record timestamps to advance [OK]

Common Mistakes:

MISTAKES

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