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Posted to jira@kafka.apache.org by "Jason Gustafson (JIRA)" <ji...@apache.org> on 2017/07/21 16:50:00 UTC

[jira] [Created] (KAFKA-5624) Unsafe use of expired sensors

Jason Gustafson created KAFKA-5624:
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             Summary: Unsafe use of expired sensors
                 Key: KAFKA-5624
                 URL: https://issues.apache.org/jira/browse/KAFKA-5624
             Project: Kafka
          Issue Type: Bug
            Reporter: Jason Gustafson


Seems a couple unhandled cases following sensor expiration:

1. Static sensors (such as {{ClientQuotaManager.}}) can be expired due to inactivity, but the references will remain valid and usable. Probably a good idea to either ensure we use a "get or create" pattern when accessing the sensor or add a new static registration option which makes the sensor ineligible for expiration.
2. It is possible to register metrics through the sensor even after it is expired. We should probably raise an exception instead.



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