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Posted to issues@solr.apache.org by "David Smiley (Jira)" <ji...@apache.org> on 2022/03/12 18:37:00 UTC

[jira] [Resolved] (SOLR-14401) "distrib" request handler metrics should only be tracked on pertinent handlers

     [ https://issues.apache.org/jira/browse/SOLR-14401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Smiley resolved SOLR-14401.
---------------------------------
    Resolution: Fixed

> "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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