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SOLR-14702: Add Upgrade Notes and CHANGES entry (#1718)

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Tomas Fernandez Lobbe 2020-08-07 10:09:40 -07:00 committed by GitHub
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solr/CHANGES.txt
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@ -38,8 +38,6 @@ Improvements
* SOLR-10814: Add short-name feature to RuleBasedAuthz plugin (Mike Drob, Hrishikesh Gadre)
* SOLR-14702: This PR removes the oppressive master/slave terminology from Solr core that has been in Solr for a decade. (MarcusSorealheis)
Other Changes
----------------------
* SOLR-14656: Autoscaling framework removed (Ishan Chattopadhyaya, noble, Ilan Ginzburg)
@ -107,6 +105,9 @@ Other Changes
* SOLR-14654: Remove plugin loading from .system collection (for 9.0) (noble)
* SOLR-14702: All references to "master" and "slave" replaced with "leader" and "follower" (MarcusSorealheis,
Erick Erickson, Tomás Fernández Löbbe)
Bug Fixes
---------------------
* SOLR-14546: Fix for a relatively hard to hit issue in OverseerTaskProcessor that could lead to out of order execution

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solr/solr-ref-guide/src/major-changes-in-solr-9.adoc
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@ -118,6 +118,11 @@ _(raw; not yet edited)_
Reference guide pages for autoscaling
autoAddReplicas feature
* SOLR-14702: All references to "master" and "slave" were replaced in the code with "leader"
and "follower". This includes API calls for the replication handler and metrics. For rolling
upgrades into 9.0, you need to be on Solr version 8.7 or greater. Some metrics also changed, alerts and
monitors on Solr KPIs that mention "master" or "slave" will also now be "leader" and "follower"
=== Upgrade Prerequisites in Solr 9
* Upgrade all collections in stateFormat=1 to stateFormat=2 *before* upgrading to Solr 9, as Solr 9 does not support the