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https://issues.apache.org/jira/browse/SOLR-14551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthew Biscocho resolved SOLR-14551.
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Resolution: Won't Fix
SolrGraphiteReporter removed in Solr 10. Use prometheus or OTLP instead.
> Missing Core CACHE Metrics when using SolrGraphiteReporter
> ----------------------------------------------------------
>
> Key: SOLR-14551
> URL: https://issues.apache.org/jira/browse/SOLR-14551
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 7.5
> Environment: Ubuntu 16.04
> Solrcloud 7.5
> Reporter: matthew medway
> Priority: Critical
> Labels: 7.5, CACHE, SolrGraphiteReporter, metrics, missing, solr
> Attachments: image-2020-06-09-12-22-53-480.png
>
>
> Hello,
> I was doing some testing of the SolrGraphiteReporter reporter and it looks to
> be working really well. One problem that I have noticed so far is that the
> CACHE metrics from the core registry are not being sent to graphite. I can
> view these metrics with the metrics api like this:
> http://<clustername>/solr/admin/metrics?group=core&prefix=CACHE
> example results:
> "CACHE.searcher.filterCache":\{ "lookups":10, "hits":7,
> "cumulative_evictions":0, "size":3, "hitratio":0.7, "evictions":0,
> "cumulative_lookups":10, "cumulative_hitratio":0.7, "warmupTime":0,
> "inserts":3, "cumulative_inserts":3, "cumulative_hits":7}
> All of the other metrics for cores are present but just not CACHE. If I do
> query looking for the data in grafana with the graphite source it
> autocompletes for the data in the other sections like ADMIN, QUERY, INDEX,
> etc. Manually typing CACHE in the query doesnt return results either.
> !image-2020-06-09-12-22-53-480.png!
> My solr.xml reporter section looks like this (redacted server name):
> <metrics>
> <reporter name="graphite"
> class="org.apache.solr.metrics.reporters.SolrGraphiteReporter">
> <str name="host">redacted</str>
> <bool name="pickled">true</bool>
> <int name="port">2004</int>
> <int name="period">60</int>
> </reporter>
> </metrics>
> As I understand from the documentation for reporters about groups and
> registries: "If neither attribute is specified then the plugin will be used
> for all groups and registries. " So I expected to see CACHE being reported
> but it is not. Please let me know if there is a workaround or fix for this or
> if i'm doing something wrong.
> Thanks!
> -Matt
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