[Solved] Identify the error in this Kafka consumer configuration snippet:Properties props = new Properties(); props.put("bootstrap.servers", "localhost:9092"); props.put("group.id", "test-group"); props.... | Kafka

Kafka - Consumers

Identify the error in this Kafka consumer configuration snippet:

Properties props = new Properties();
props.put("bootstrap.servers", "localhost:9092");
props.put("group.id", "test-group");
props.put("enable.auto.commit", true);
props.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
props.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");

A"enable.auto.commit" should be a String "true", not boolean true

B"group.id" is missing and must be added

C"bootstrap.servers" value is incorrect format

DDeserializers should be set to IntegerDeserializer

Step-by-Step Solution

Solution:

Step 1: Check data types for properties
Kafka consumer properties expect String values, so "enable.auto.commit" should be set as "true" (a String), not boolean true.
Step 2: Verify other properties
"group.id" is present, "bootstrap.servers" format is correct, and deserializers are valid for String keys and values.
Final Answer:
"enable.auto.commit" should be a String "true", not boolean true -> Option A
Quick Check:
Properties values must be Strings [OK]

Quick Trick: Property values must be strings, not booleans [OK]

Common Mistakes:

Using boolean true instead of "true" string
Omitting group.id property
Incorrect bootstrap.servers format
Wrong deserializer class for String data

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More Kafka Quizzes

Identify the error in this Kafka consumer configuration snippet:

Step 1: Check data types for properties

Step 2: Verify other properties

Final Answer:

Quick Check:

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