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https://issues.apache.org/jira/browse/SOLR-14716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17173227#comment-17173227
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Cassandra Targett commented on SOLR-14716:
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Discussion on this in the Dev list:
https://lists.apache.org/thread.html/rdb8ea68b733ab7a1696465ef3a0e5ad8e000c7159a2bf649ec86a3ff%40%3Cdev.lucene.apache.org%3E
> Ref Guide: update leader/follower terminology
> ---------------------------------------------
>
> Key: SOLR-14716
> URL: https://issues.apache.org/jira/browse/SOLR-14716
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: documentation
> Reporter: Cassandra Targett
> Priority: Major
>
> The effort to remove oppressive terminology in SOLR-14702 led to somewhat
> awkward phrasing on how to refer to non-SolrCloud configurations,
> specifically "leader/follower mode", which is potentially very confusing
> since SolrCloud also has leaders and one could consider replicas to be
> followers.
> I propose that we standardize what we call these two modes as "coordinated
> mode" (SolrCloud) and "uncoordinated mode" (or "non-coordinated" if people
> prefer). I chose this because in thinking about what really differentiates
> the two approaches is the ZooKeeper coordination for requests, configs, etc.
> There are other differences too, of course, but that's the biggest one that
> stuck out to me as a key differentiator and applicable in the naming.
> There are also places in the Ref Guide where we refer to "standalone mode",
> which in many cases means "any cluster not running SolrCloud". This has
> always been problematic, because the word "standalone" implies a single node,
> but it's of course pretty much always been possible to have a cluster of
> multiple nodes that don't run SolrCloud/ZK. This issue would address those
> examples also.
> Note that I'm not proposing replacing the word "SolrCloud" throughout the
> documentation. Instead I'll augment the use of the word "SolrCloud" with
> clarification that this term means "coordinated mode". Later if we ever
> replace SolrCloud references in code and fully remove that name, the
> conceptual groundwork will have already been laid for users.
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