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https://issues.apache.org/jira/browse/SOLR-17628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18003814#comment-18003814
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ASF subversion and git services commented on SOLR-17628:
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Commit 36c4ad9053182f078d5ac17e94f3dfec6c91dc40 in solr's branch
refs/heads/branch_9_9 from Jude Muriithi
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=36c4ad90531 ]
SOLR-17628: Add query quantiles metrics to prometheus endpoint (#3164)
Export metric timers via `wt=prometheus` as Prometheus summaries. This
introduces count, sum, and quantiles.
> Add query quantiles metrics to prometheus endpoint
> ---------------------------------------------------
>
> Key: SOLR-17628
> URL: https://issues.apache.org/jira/browse/SOLR-17628
> Project: Solr
> Issue Type: Improvement
> Components: metrics
> Reporter: Matthew Biscocho
> Priority: Major
> Labels: pull-request-available
> Fix For: 9.9
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> When exposing prometheus metrics with SOLR-10654 exporting metrics was mostly
> straight forward except for query metric quantiles. Things such as average
> request times exists with the current prometheus internal formatters. But
> Dropwizard gauges can have more complex types in their data structures and
> quantiles fell in that bucket so at the time, exporting these quantiles
> wasn't straight forward. I think these metrics would be very beneficial to
> finally add in and export.
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