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https://issues.apache.org/jira/browse/SOLR-7280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15705501#comment-15705501
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Mark Miller commented on SOLR-7280:
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It would seem the next step is probably to make the ZkController#preRegister
phase more efficient. We would want to try and avoid all the individual down
publish calls. This is what initially populates those entries in ZK though,
which is why this was not simply switched to a more efficient 'down' node
Overseer action like some other places. We may need another bulk Overseer
command or perhaps we can expand the 'down' node one.
> 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: 5.5.3, 6.2
>
> Attachments: SOLR-7280-5x.patch, SOLR-7280-5x.patch,
> SOLR-7280-5x.patch, SOLR-7280-test.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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