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https://issues.apache.org/jira/browse/SOLR-7280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15388323#comment-15388323
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Mark Miller commented on SOLR-7280:
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I have no problem if it works.
Perhaps some other unrelated changes have influenced how the load threads
interact with leader election.
I just don't see the problem explained or addressed and there is a previous
JIRA issue with this exact problem. The only way I can see it would still not
be a problem is if waiting for a leader doesn't hold up core loading. I don't
remember seeing that change though.
You may not be able to test this simply with tests either - many tests lower
the leaderVoteWait to very low to speed up tests. In production it should be
like 3 minutes by default.
> 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, 5.5.3
>
> Attachments: SOLR-7280-5x.patch, 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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