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https://issues.apache.org/jira/browse/SOLR-18165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SOLR-18165:
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Labels: pull-request-available (was: )
> Use dot separated metric names for OTLP
> ---------------------------------------
>
> Key: SOLR-18165
> URL: https://issues.apache.org/jira/browse/SOLR-18165
> Project: Solr
> Issue Type: Bug
> Components: metrics
> Affects Versions: 10.0
> Reporter: Jan Høydahl
> Assignee: Jan Høydahl
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In v 10.0 we switched to OTEL for metrics with new sets of metric names
> compared to 9.x. We currently use underscore_separated_names for metrics.
> The OTEL convention is to use dot.separated.names for metrics. See
> [https://opentelemetry.io/docs/specs/semconv/general/naming/]
> As it was a mistake to use underscores everywhere in 10.0, this issue will
> fix the naming to comply with conventions.
> h2. Consequences
> * The prometheus metrics endpoints will *NOT* be changed, will still export
> prometheus style underscore separated metric names
> * The OTLP metric exporter WILL change, which is a backward compatibility
> break. But few people use v10.0.0 and even fewer have started depending on
> underscores downstream, and those who do can write a transformer rule in OTEL
> Collector that use underscores
>
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