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https://issues.apache.org/jira/browse/SOLR-14401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17506690#comment-17506690
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ASF subversion and git services commented on SOLR-14401:
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Commit a8ae85336611475f93b51b7a5e2c0ad87209700d in solr's branch
refs/heads/jira/SOLR15715_1 from David Smiley
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=a8ae853 ]
SOLR-14401: Track distrib/shard metrics differently (#657)
* only do for SearchHandler, not all request handlers (less metrics overall)
* track all the same details at the shard level as request (more detailed
metrics)
* use [shard] suffix; do away with .distrib. and .local.
* don't limit this to SolrCloud
Prometheus Exporter & Grafana config:
* remove select ".distrib."; this is the default semantic
* remove ".local." additions because these are already expressed via separate
request handlers with a suffix
* time_seconds_total computed differently; looks suspicious
* extract an "internal" Prometheus label from the handler; has values "shard"
or "false". Updated Grafana to use this to match former logic.
Misc:
* prometheus gradle: fix "run" task
* fix README link
Co-authored-by: Houston Putman <hous...@apache.org>
> "distrib" request handler metrics should only be tracked on pertinent handlers
> ------------------------------------------------------------------------------
>
> Key: SOLR-14401
> URL: https://issues.apache.org/jira/browse/SOLR-14401
> Project: Solr
> Issue Type: Improvement
> Components: metrics
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Blocker
> Fix For: 9.0
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> SOLR-13979 in 8.4 added separate request handler metrics for distributed
> requests. However this was done for _all_ request handlers, even though it's
> mainly SearchHandler (and maybe one or two others?) where a distributed
> request is even possible. I refer to this as "metrics pollution" and it's a
> bad thing. It's more weight per handler (latency load & memory), more weight
> for Solr metrics responses, and it's also _suggestive_ that all registered
> handlers can have distributed requests when this is quite false, thus
> confusing people.
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