2933485 - How to scale solr instances (no downtime)

IMPORTANT

After running below instruction, replication factor in solr collection will be still marked as 1. Any new collection (or recreation of previously removed existing collections ), will be created with number of replicas same as it is defined in Backoffice (solr server configuration). This setup will be persistent and operational as long as collection is not removed - full indexer won't override it with value set in BO.


Standard single node setup (all indexes are running only on 1 solr instance):

Check Nodes view in solr admin console (navigate to Cloud>Nodes):
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