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Posted to server-dev@james.apache.org by "Matthieu Baechler (Jira)" <se...@james.apache.org> on 2020/07/06 09:07:00 UTC

[jira] [Created] (JAMES-3297) Publish the number of items currently in the mailet pipeline as a metric

Matthieu Baechler created JAMES-3297:
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             Summary: Publish the number of items currently in the mailet pipeline as a metric
                 Key: JAMES-3297
                 URL: https://issues.apache.org/jira/browse/JAMES-3297
             Project: James Server
          Issue Type: Improvement
            Reporter: Matthieu Baechler


Some MailQueue implementations have a limit on the number of elements that can be dequeued but not yet ack (RabbitMQ has that feature).
In some cases it can prevent new mails to being dequeued and it's not easy to diagnose.
By exposing that number as a metric and/or issuing a warning when this number reach the limit, we could help the operator to understand what's going wrong.




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