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https://issues.apache.org/jira/browse/SOLR-9462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15749831#comment-15749831
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Michael Sun commented on SOLR-9462:
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Ah, I see. There is no cache stats for collection in current implementation.
Therefore it can be hard to get cache stats for collection alias.
I think what is useful is to report aggregated cache stats for all cores in one
Solr node. For Solr installation with multiple cores, particularly with 10+
cores, it's time consuming to go over each core to get stats from UI. Therefore
aggregated stats can help.
> Add cache metrics for collection alias
> --------------------------------------
>
> Key: SOLR-9462
> URL: https://issues.apache.org/jira/browse/SOLR-9462
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: JMX
> Affects Versions: 6.2
> Reporter: Michael Sun
>
> Solr caches are major memory consumers and Solr cache metrics are critical in
> memory tuning. However in current implementation, only cache metrics for
> individual collection is available. To get the same metrics for a collection
> alias, which may cover tens collections, the only way is to aggregate metrics
> from each collection for the collection alias manually or using an external
> tool.
> The JIRA is to provide cache metrics for a collection alias to simplify the
> memory tuning for collection alias.
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