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https://issues.apache.org/jira/browse/SOLR-7280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15366417#comment-15366417
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Noble Paul commented on SOLR-7280:
----------------------------------
Thanks [~markrmil...@gmail.com] for looking into this. The {{coreLoadThreads}}
is something that's ignored in cloud mode today. Should the user not have a
way to limit the no:of threads used to load cores in cloud mode. If there are
thousands of cores, the cluster ends up unstable because of this. Normally,
users will have a few cores per node and it is no big deal to keep the thread
pool to be unbounded. The power users must have a way to tune this.
> 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: 5.2, 6.0
>
> Attachments: 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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