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https://issues.apache.org/jira/browse/SOLR-17806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18029843#comment-18029843
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ASF subversion and git services commented on SOLR-17806:
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Commit 06775b0deb80757d0e66ec2ed33f7f932fac825a in solr's branch
refs/heads/main from Matthew Biscocho
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=06775b0deb8 ]
SOLR-17806: Migrate CaffeineCache to OTEL (#3671)
* Migrate base metrics to OTEL
* Fix broken tests
* Cleanup utility methods
* Clean up more tests
* Change ram used bytes name
* Change based on feedback
* Address feedback
* Make cumulative cache metrics the default
* Minor feedback
* Pass in metric name for caffeine cache
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Co-authored-by: Matthew Biscocho <[email protected]>
> Migrate Dropwizard metric initializations to OTEL instruments
> -------------------------------------------------------------
>
> Key: SOLR-17806
> URL: https://issues.apache.org/jira/browse/SOLR-17806
> Project: Solr
> Issue Type: Sub-task
> Components: metrics
> Reporter: Matthew Biscocho
> Priority: Major
> Labels: pull-request-available
> Fix For: main (10.0)
>
> Time Spent: 34h
> Remaining Estimate: 0h
>
> This subtask is to track migrations of Dropwizard instruments to OTEL. Many
> places that initialize these metrics implement SolrMetricProducer. Doing this
> usually involves finding the initialization of these metric, remove
> Dropwizard and replace with the OTEL equivalent instruments using an one of
> the OTEL attributed metric wrappers.
> From dropwizard to OTEL:
> Gauge -> Gauge
> Counter -> Counter
> Histogram -> Histogram
> Meter -> Counter (May also need Histogram or gauges for rates)
> Timer -> Histogram (Use AttributedLongTimer)
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