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https://issues.apache.org/jira/browse/SOLR-7248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14363337#comment-14363337
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Mark Miller commented on SOLR-7248:
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In fact, I think we need to reconsider legacyCloud.
We have reserved the right to add ZK == truth features by default in 5 releases.
We may want to first add and improve them behind legacyCloud as an option and
once we have confidence in them, move them to default? Or we may want to keep
everything behind legacyCloud for all of 5. I would prefer to start doing zk ==
truth by default - when you don't support pre configuring SolrCore's (As we say
we won't in 5.0 CHANGES.txt), most of these changes are really fixing what a
user would perceive as a bug.
> In legacyCloud=false mode we should check if the core was hosted on the same
> node before registering it
> --------------------------------------------------------------------------------------------------------
>
> Key: SOLR-7248
> URL: https://issues.apache.org/jira/browse/SOLR-7248
> Project: Solr
> Issue Type: Bug
> Affects Versions: 5.0
> Reporter: Varun Thacker
> Assignee: Varun Thacker
> Fix For: Trunk, 5.1
>
> Attachments: SOLR-7248.patch, SOLR-7248.patch
>
>
> Related discussion here - http://markmail.org/message/n32mxbv42hzuneyy
> Currently we check if the same coreNodeName is present in clusterstate before
> registering it. We should make this check more stringent and allow a core to
> be registered only if it the coreNodeName is present and if it's on the same
> node.
> This will ensure that junk replica folders lying around on old nodes don't
> end up registering themselves when the node gets bounced.
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