I have created 2 shards of Solr 8.3.0. We have created 27 collections using the below http://191.162.100.148:7971/solr/admin/collections?_=1573813004271&action=CREATE&autoAddReplicas=false&collection.configName=actionscomments&maxShardsPerNode=1&name=actionscomments&numShards=2&replicationFactor=1&router.name=compositeId&wt=json
After the re-indexing Data, I want to add a replica of each shard. How can I add a replica without re-creating collection and re-indexing? Can I add one more shard dynamically without re-creating collections and re-indexing?