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https://issues.apache.org/jira/browse/SOLR-17458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18033104#comment-18033104
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David Smiley commented on SOLR-17458:
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MetricsConfig has no use anymore. It was used to disable metrics, and to
provide no-op implementations of meters, timers, counters, histograms. That
functionality is now gone. Note that OTEL supports it:
[https://opentelemetry.io/docs/specs/otel/metrics/noop/] but we’d need to
integrate that, such as a way to specify that there be no core metrics, for
example, or none at all (perhaps should be the default in tests).
> Metrics: switch from DropWizard to OpenTelemetry
> ------------------------------------------------
>
> Key: SOLR-17458
> URL: https://issues.apache.org/jira/browse/SOLR-17458
> Project: Solr
> Issue Type: Improvement
> Reporter: Matthew Biscocho
> Assignee: Matthew Biscocho
> Priority: Major
> Labels: pull-request-available
> Fix For: 10.0
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> Solr currently captures metrics with Dropwizard 4. There was some limitations
> to Dropwizard, biggest one being metrics without tags/attributes making
> aggregation difficult and requires the Prometheus Exporter to work with
> Grafana.
> Creating this to track and explore integrating OpenTelemetry into Solr and
> possibly replace Dropwizard giving a larger exposure of observability tools.
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