[Solved] You scheduled a punctuator with WALL_CLOCK_TIME but it triggers irregularly. What could cause this? — Ans: System clock changes or pauses affect WALL_CLOCK_TIME triggers. | Kafka

Kafka - Advanced Stream Processing

You scheduled a punctuator with WALL_CLOCK_TIME but it triggers irregularly. What could cause this?

ASystem clock changes or pauses affect WALL_CLOCK_TIME triggers.

BWALL_CLOCK_TIME triggers only on new records, so irregular arrivals cause irregular triggers.

CThe punctuator callback is blocking and delays next triggers.

DKafka Streams does not support WALL_CLOCK_TIME triggers.

Step-by-Step Solution

Solution:

Step 1: Understand WALL_CLOCK_TIME dependency
WALL_CLOCK_TIME triggers depend on the system clock, so changes like daylight saving or manual adjustments affect timing.
Step 2: Identify cause of irregular triggers
If system clock changes or pauses, the punctuator triggers can become irregular.
Final Answer:
System clock changes or pauses affect WALL_CLOCK_TIME triggers. -> Option A
Quick Check:
WALL_CLOCK_TIME depends on system clock stability [OK]

Quick Trick: System clock affects WALL_CLOCK_TIME triggers [OK]

Common Mistakes:

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You scheduled a punctuator with WALL_CLOCK_TIME but it triggers irregularly. What could cause this?