Solution:Step 1: Check if ACL command syntax is correctThe command correctly adds Read permission for User:carol on topic sales.Step 2: Consider authentication and identityIf Carol cannot read despite ACL, likely her client is not authenticating as User:carol, so ACL does not apply.Final Answer:Caro

[Solved] You run the command: kafka-acls --add --allow-principal User:carol --operation Read --topic sales But Carol still cannot read from the sales topic. What is the most likely cause? | Kafka

Kafka - Security

You run the command:

kafka-acls --add --allow-principal User:carol --operation Read --topic sales

But Carol still cannot read from the sales topic. What is the most likely cause?

AThe ACL was added but the Kafka broker was not restarted

BCarol needs Write permission to read messages

CCarol's client is not authenticating as User:carol

DThe ACL was added for the wrong user

Step-by-Step Solution

Solution:

Step 1: Check if ACL command syntax is correct
The command correctly adds Read permission for User:carol on topic sales.
Step 2: Consider authentication and identity
If Carol cannot read despite ACL, likely her client is not authenticating as User:carol, so ACL does not apply.
Final Answer:
Carol's client is not authenticating as User:carol -> Option C
Quick Check:
ACL needs matching user identity = A [OK]

Quick Trick: ACLs depend on correct user authentication [OK]

Common Mistakes:

Thinking Write permission is needed to read
Assuming Kafka broker restart is required for ACL changes
Confusing user names in ACL commands

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You run the command:

Step 1: Check if ACL command syntax is correct

Step 2: Consider authentication and identity

Final Answer:

Quick Check:

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