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https://issues.apache.org/jira/browse/SOLR-16507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17731405#comment-17731405
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David Smiley commented on SOLR-16507:
-------------------------------------
FYI still pending backport
> 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: 2.5h
> 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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