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https://issues.apache.org/jira/browse/SOLR-7280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15390819#comment-15390819
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Mark Miller commented on SOLR-7280:
-----------------------------------
You only need one node because this issue is about loading cores on one node.
You also of course need more replicas than load threads to stimulate the old
issue.
The one issue with the test is I don't think it would fail nicely if the
problem was reintroduced as it was when I saw it? As I saw it, if the problem
was reintroduced the test would just take longer.
We should probably just make sure it doesn't take 180 seconds + (or whatever we
set the leaderVoteWait to in the test) to startup and elect a leader, and if it
does, fail with a nice message.
> 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-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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