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https://issues.apache.org/jira/browse/SOLR-7280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15384572#comment-15384572
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Mike Drob commented on SOLR-7280:
---------------------------------

{{+    List<CountsForEachShard> l = new ArrayList<>();}}
Could init this list to copy.size()

{{+    List<CloudDescriptor> ret = new ArrayList<>();}}
Same idea here, cc.getCores().size()

Other than that, your unwrapped lambdas look fine to me.

> Load cores in sorted order and tweak coreLoadThread counts to improve cluster 
> stability on restarts
> ---------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-7280
>                 URL: https://issues.apache.org/jira/browse/SOLR-7280
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Noble Paul
>             Fix For: 6.2
>
>         Attachments: SOLR-7280-5x.patch, SOLR-7280-5x.patch, SOLR-7280.patch, 
> SOLR-7280.patch
>
>
> In SOLR-7191, Damien mentioned that by loading solr cores in a sorted order 
> and tweaking some of the coreLoadThread counts, he was able to improve the 
> stability of a cluster with thousands of collections. We should explore some 
> of these changes and fold them into Solr.



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