[jira] [Updated] (SOLR-14665) Collection creation is progressively slower

["Ishan Chattopadhyaya (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-14665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ishan Chattopadhyaya updated SOLR-14665:
----------------------------------------
    Fix Version/s: 8.7

> Collection creation is progressively slower
> -------------------------------------------
>
>                 Key: SOLR-14665
>                 URL: https://issues.apache.org/jira/browse/SOLR-14665
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Ishan Chattopadhyaya
>            Priority: Major
>             Fix For: 8.7
>
>         Attachments: Screenshot from 2020-07-18 07-49-01.png
>
>
> Plain and simple collection creation (or even shard splits etc.) get progressively slower as more and more collections are in the system. The culprit is the autoscaling framework (possibly some unnecessary policy computation).
>  
> Here is how bad the situation is:
> https://issues.apache.org/jira/browse/SOLR-14656?focusedCommentId=17160311&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17160311
>  
> !Screenshot from 2020-07-18 07-49-01.png!
>  
> Btw, even when using createnodeset parameter, there is still a gradual slowdown (but less steep than the graph here).
>  
> This is a matter of grave concern for anyone running a Solr cluster with more than a few hundred collections.



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