[Solved] Given the following Kafka configuration snippet:num.io.threads=4 log.segment.bytes=10485760 log.dirs=/kafka-logsWhat is the effect of setting num.io.threads to 4? | Kafka

Kafka - Performance Tuning

Given the following Kafka configuration snippet:

num.io.threads=4
log.segment.bytes=10485760
log.dirs=/kafka-logs

What is the effect of setting num.io.threads to 4?

AKafka limits the number of topics to 4.

BKafka will create 4 log directories.

CKafka will use 4 threads to handle disk I/O operations, improving parallelism.

DKafka will retain logs for 4 hours.

Step-by-Step Solution

Solution:

Step 1: Understand the role of num.io.threads
This setting controls how many threads Kafka uses for disk input/output operations, allowing parallel reads and writes.
Step 2: Check other options for relevance
Options about limiting topics, creating directories, or retention hours do not relate to num.io.threads.
Final Answer:
Kafka will use 4 threads to handle disk I/O operations, improving parallelism. -> Option C
Quick Check:
num.io.threads = 4 threads for disk I/O [OK]

Quick Trick: num.io.threads sets disk I/O thread count, not topics or retention [OK]

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