David Smiley created SOLR-14401:
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Summary: "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
Security Level: Public (Default Security Level. Issues are Public)
Components: metrics
Reporter: David Smiley
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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