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https://issues.apache.org/jira/browse/SOLR-17798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18029845#comment-18029845
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ASF subversion and git services commented on SOLR-17798:
--------------------------------------------------------

Commit fc3545764a0a8abe8062158f295ad49d7bd8e9c6 in solr's branch 
refs/heads/main from Matthew Biscocho
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=fc3545764a0 ]

SOLR-17798: Integrate SDK OTLP metric exporter (#3413)

* Create dynamic SDK Meter Providers and tests

* Bad merge from feature branch

* Wrap meter providers and metric readers

* Test cleanup

* Cleanup

* Initialize a OTLP exporter

* Add Noop metric expoter

* Add test for exporter

* Create exporter factory

* Drop revert opentelemetry version upgrade

* Add some java docs

* Wrong merged conflicts

* Tidy lines

* Add trace based exemplars

* Move to OpenMetricsTextFormatWriter

* Change context type to open metrics

* Revert "Change context type to open metrics"

This reverts commit b594327aae48c813cf81e36c5e2dfbe3bcb76bc8.

* Revert "Move to OpenMetricsTextFormatWriter"

This reverts commit 96435ebe2ac15b7cc3781c031d1229a1504e1fdc.

* Revert "Add trace based exemplars"

This reverts commit d33a85df3ac5ddb4401f36d9ed3c34f7a02c43fc.

* Move Otlp exporter into Open Telemetry module

* Close meterProviders and readers

* Retry instead of sleep

---------

Co-authored-by: Matthew Biscocho <[email protected]>


> Integrate SDK OTLP metric exporter
> ----------------------------------
>
>                 Key: SOLR-17798
>                 URL: https://issues.apache.org/jira/browse/SOLR-17798
>             Project: Solr
>          Issue Type: Sub-task
>          Components: metrics
>            Reporter: Matthew Biscocho
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: main (10.0)
>
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> Metrics internally are captured with the OTEL API and output with OTEL SDK 
> Prometheus metric readers to the PrometheusResponseWriter for pull based 
> systems.
> We should add in an OTLP metric exporter that is off by default but can be 
> enabled to export this on a push based interval for systems that accept OTLP 
> such as the OTEL collector.



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