[jira] [Created] (KUDU-2497) Add a metric for the number of unauthenticated connection attempts

["Andrew Wong (JIRA)" <ji...@apache.org>]

Andrew Wong created KUDU-2497:
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             Summary: Add a metric for the number of unauthenticated connection attempts
                 Key: KUDU-2497
                 URL: https://issues.apache.org/jira/browse/KUDU-2497
             Project: Kudu
          Issue Type: Improvement
          Components: security, server
            Reporter: Andrew Wong


When a client's authentication token expires, upon connecting to a master or tserver, the result is that the Kudu server logs a warning message about an unauthenticated connection attempt. It would be nice if these connections were quantified as a metric instead, particularly in cases where there are a large number of these messages.

Note: this would be particularly helpful when users are using older versions of the Java client, that may not reauthenticate automatically, leading to a huge amount of warning messages in the logs.



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