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https://issues.apache.org/jira/browse/ARTEMIS-2897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17246829#comment-17246829
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Justin Bertram commented on ARTEMIS-2897:
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At this point I'm against adding a metric for first-message-age for two main
reasons. First, I don't know what it provides that can't already be deduced
from metrics which are already reported. Second, it's a fairly expensive
operation as it requires creating a queue iterator internally. Metrics are
gathered on a frequent basis so its important that they perform well.
[~pkuzel], can you elaborate on your use-case and how it relates to my concerns?
> Metrics: a queue meter matching management.QueueControl.getFirstMessageAge()
> -----------------------------------------------------------------------------
>
> Key: ARTEMIS-2897
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2897
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 2.14.0
> Reporter: Petr Kuzel
> Priority: Major
>
> The micrometer-instrumentation of the broker queues lacks a gauge for the
> oldest message in the queue.
>
> Could you implement the "first.message.age.ms" meter for queues, please?
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