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https://issues.apache.org/jira/browse/SOLR-5609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13864241#comment-13864241
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Noble Paul commented on SOLR-5609:
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makes sense to have an omnibus property like "legacyCloudMode" rather than
having specific properties for each behavior.
> Don't let cores create slices/named replicas
> --------------------------------------------
>
> Key: SOLR-5609
> URL: https://issues.apache.org/jira/browse/SOLR-5609
> Project: Solr
> Issue Type: Sub-task
> Components: SolrCloud
> Reporter: Noble Paul
> Fix For: 5.0, 4.7
>
>
> In SolrCloud, it is possible for a core to come up in any node , and register
> itself with an arbitrary slice/coreNodeName. This is a legacy requirement and
> we would like to make it only possible for Overseer to initiate creation of
> slice/replicas
> We plan to introduce cluster level properties at the top level
> /cluster-props.json
> {code:javascript}
> {
> "noSliceOrReplicaByCores":true"
> }
> {code}
> If this property is set to true, cores won't be able to send STATE commands
> with unknown slice/coreNodeName . Those commands will fail at Overseer. This
> is useful for SOLR-5310 / SOLR-5311 where a core/replica is deleted by a
> command and it comes up later and tries to create a replica/slice
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