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https://issues.apache.org/jira/browse/SOLR-11960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16388178#comment-16388178
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Shalin Shekhar Mangar commented on SOLR-11960:
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bq. I think you are right, there is no need to register the watch on
registerCore. Users of this feature can add a watch themselves by calling
registerCollectionPropsWatcher. That's what you mean, right?
Yes, but that is not sufficient. We need to take care of ZK reconnects as well.
So we should re-create the collection prop watchers in
createClusterStateWatchersAndUpdate method.
> Add collection level properties
> -------------------------------
>
> Key: SOLR-11960
> URL: https://issues.apache.org/jira/browse/SOLR-11960
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Peter Rusko
> Assignee: Tomás Fernández Löbbe
> Priority: Major
> Attachments: SOLR-11960.patch, SOLR-11960.patch, SOLR-11960.patch,
> SOLR-11960.patch, SOLR-11960.patch
>
>
> Solr has cluster properties, but no easy and extendable way of defining
> properties that affect a single collection. Collection properties could be
> stored in a single zookeeper node per collection, making it possible to
> trigger zookeeper watchers for only those Solr nodes that have cores of that
> collection.
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