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https://issues.apache.org/jira/browse/SOLR-11201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16301582#comment-16301582
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ASF subversion and git services commented on SOLR-11201:
--------------------------------------------------------

Commit 43f17f7af1831b71f3f53f600bcf04579c4b960a in lucene-solr's branch 
refs/heads/master from [~shalinmangar]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=43f17f7 ]

SOLR-11201: Implement autoscaling trigger for arbitrary metrics that creates 
events when a given metric breaches a threshold


> Implement trigger for arbitrary metrics
> ---------------------------------------
>
>                 Key: SOLR-11201
>                 URL: https://issues.apache.org/jira/browse/SOLR-11201
>             Project: Solr
>          Issue Type: Sub-task
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: AutoScaling, SolrCloud
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Shalin Shekhar Mangar
>             Fix For: master (8.0), 7.3
>
>         Attachments: SOLR-11201.patch, SOLR-11201.patch
>
>
> It should be possible to set a trigger on any metrics exposed by the Metrics 
> API using a threshold value. Supporting {{waitFor}} may not be possible or 
> useful for all metrics. For those we will implement proper trigger support 
> (such as searchRate) However, a naive implementation might be to just poll 
> the value of the metric frequently and if it is consistently above the 
> threshold, fire the trigger.



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