Kafka Exception AuthorizerNotReadyException
org.apache.kafka.common.errors.AuthorizerNotReadyException
Retriable
Security
An exception that indicates that the authorizer is not ready to receive the request yet.
Common Causes
- A request requiring authorization arrived while the broker's authorizer was still initializing during startup
- In KRaft/standard authorizer setups, ACL metadata had not finished loading yet
- Transient window right after a broker (re)start before the authorizer is ready
Solutions
- It is retriable — clients back off and retry; the condition clears once the authorizer finishes loading ACLs
- If persistent, check broker startup logs for authorizer initialization errors and metadata/ACL load progress
- Stagger client startup so it does not hammer a broker that is still coming up
Example Stack Trace
org.apache.kafka.common.errors.AuthorizerNotReadyException: The authorizer is not ready to handle the request yet.Related
Related Security exceptions: AuthenticationException · AuthorizationException · ClusterAuthorizationException · GroupAuthorizationException · IllegalSaslStateException · SaslAuthenticationException · SslAuthenticationException · TopicAuthorizationException
Hitting
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