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https://issues.apache.org/jira/browse/SOLR-15590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17512566#comment-17512566
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ASF subversion and git services commented on SOLR-15590:
--------------------------------------------------------

Commit f9fd674d147f516cb0673fdd9052066e8a29701b in solr's branch 
refs/heads/branch_9_0 from Jan Høydahl
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=f9fd674 ]

SOLR-15590: Changes entry for 9.0 (#761)

(cherry picked from commit 7bd8a82df05984c5dbb008911fb957ea1804eb99)


> Start up Core Container via ServletContextListener
> --------------------------------------------------
>
>                 Key: SOLR-15590
>                 URL: https://issues.apache.org/jira/browse/SOLR-15590
>             Project: Solr
>          Issue Type: Improvement
>    Affects Versions: 9.0
>            Reporter: Gus Heck
>            Assignee: Gus Heck
>            Priority: Major
>             Fix For: 9.0
>
>          Time Spent: 9.5h
>  Remaining Estimate: 0h
>
> Anyone who has had to work on HttpSolrCall,  or SolrDispatchFilter will have 
> noticed that we have a LOT going on and that it gets very convoluted. This is 
> bad for maintenance, and probably also bad for performance.  After reading 
> for a while I suspect that the primary thing that has lead to this is that 
> the only way to get a reference to CoreContainer is to be in or initialized 
> in or invoked by the SolrDispatchFilter or HttpSolrCall classes.
> To isolate the startup code and not distract from the dispatch code and also 
> to make it possible to later add features that don't live in 
> SolrDispatchFilter and also possibly to split out some features from 
> SolrDispatchFilter into servlets or separate filters, this ticket moves 
> CoreContainer into a CoreService class that will provide CoreContainer and a 
> few other objects like the httpclient to other components that need it.



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