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From "Jason Gustafson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-5547) Return topic authorization failed if no topic describe access
Date Fri, 30 Jun 2017 18:04:00 GMT
Jason Gustafson created KAFKA-5547:

             Summary: Return topic authorization failed if no topic describe access
                 Key: KAFKA-5547
                 URL: https://issues.apache.org/jira/browse/KAFKA-5547
             Project: Kafka
          Issue Type: Improvement
            Reporter: Jason Gustafson

We previously made a change to several of the request APIs to return UNKNOWN_TOPIC_OR_PARTITION
if the principal does not have Describe access to the topic. The thought was to avoid leaking
information about which topics exist. The problem with this is that a client which sees this
error will just keep retrying because it is usually treated as retriable. It seems, however,
that we could return TOPIC_AUTHORIZATION_FAILED instead and still avoid leaking information
as long as we ensure that the Describe authorization check comes before the topic existence
check. This would avoid the ambiguity on the client.

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