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https://issues.apache.org/jira/browse/SOLR-14289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17053561#comment-17053561
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Mike Drob commented on SOLR-14289:
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[~dsmiley] - seems like we're working on similar problems around speeding up 
core startup - can you take a look at this and let me know what you think?

> Solr may attempt to check Chroot after already having connected once
> --------------------------------------------------------------------
>
>                 Key: SOLR-14289
>                 URL: https://issues.apache.org/jira/browse/SOLR-14289
>             Project: Solr
>          Issue Type: Task
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Server
>            Reporter: Mike Drob
>            Assignee: Mike Drob
>            Priority: Major
>         Attachments: Screen Shot 2020-02-26 at 2.56.14 PM.png
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> On server startup, we will attempt to load the solr.xml from zookeeper if we 
> have the right properties set, and then later when starting up the core 
> container will take time to verify (and create) the chroot even if it is the 
> same string that we already used before. We can likely skip the second 
> short-lived zookeeper connection to speed up our startup sequence a little 
> bit.
>  
> See this attached image from thread profiling during startup.
> !Screen Shot 2020-02-26 at 2.56.14 PM.png!



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