A Kafka producer is configured with buffer.memory=1048576 and batch.size=16384. The producer throws a timeout error when sending. What is a likely cause?

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Kafka - Performance Tuning

A Kafka producer is configured with buffer.memory=1048576 and batch.size=16384. The producer throws a timeout error when sending. What is a likely cause?

AThe batch.size is larger than buffer.memory

BThe buffer.memory is too small causing blocking and timeout

Clinger.ms is set to zero causing immediate sends

Dacks is set to zero causing no acknowledgments

Step-by-Step Solution

Solution:

Step 1: Analyze buffer.memory and batch.size values
buffer.memory is 1MB, batch.size is 16KB, which is valid. But small buffer.memory can fill quickly.
Step 2: Understand timeout cause
If buffer fills and producer blocks waiting for space, it can timeout if max.block.ms is exceeded.
Final Answer:
The buffer.memory is too small causing blocking and timeout -> Option B
Quick Check:
Small buffer.memory can cause send timeouts [OK]

Quick Trick: Small buffer.memory may cause blocking and timeouts [OK]

Common Mistakes:

MISTAKES

Assuming batch.size larger than buffer.memory
Confusing linger.ms with timeout cause
Mixing acks with buffer issues

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A Kafka producer is configured with buffer.memory=1048576 and batch.size=16384. The producer throws a timeout error when sending. What is a likely cause?

Step 1: Analyze buffer.memory and batch.size values

Step 2: Understand timeout cause

Final Answer:

Quick Check:

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