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https://issues.apache.org/jira/browse/SOLR-16507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17731580#comment-17731580
 ] 

ASF subversion and git services commented on SOLR-16507:
--------------------------------------------------------

Commit d16b791d295096e6b075cb3dbb3d9782f2be8913 in solr's branch 
refs/heads/branch_9x from Noble Paul
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=d16b791d295 ]

SOLR-16507:Remove NodeStateProvider & Snitch ported to 9x (#1702)



> Remove NodeStateProvider & Snitch
> ---------------------------------
>
>                 Key: SOLR-16507
>                 URL: https://issues.apache.org/jira/browse/SOLR-16507
>             Project: Solr
>          Issue Type: Task
>            Reporter: David Smiley
>            Assignee: Noble Paul
>            Priority: Major
>              Labels: newdev
>          Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> The NodeStateProvider is a relic relating to the old autoscaling framework 
> that was removed in Solr 9.  The only remaining usage of it is for 
> SplitShardCmd to check the disk space.  For this, it could use the metrics 
> api.
> I think we'll observe that Snitch and other classes in 
> org.apache.solr.common.cloud.rule can be removed as well, as it's related to 
> NodeStateProvider.
> Only 
> org.apache.solr.cluster.placement.impl.AttributeFetcherImpl#getMetricSnitchTag
>  and org.apache.solr.cluster.placement.impl.NodeMetricImpl refer to some 
> constants in the code to be removed.  Those constants could move out, 
> consolidated somewhere we think is appropriate.



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