Hi, I'm using Solr-7.4.0 and I want to export 4TB of data from our current Solr cluster to a different cluster. The new cluster has twice the number of nodes than the current cluster and I want data to be distributed among all the nodes. Is this possible with the Backup/Restore feature considering the fact that I want to increase the number of shards in the new Collections?
>From the official docs: *"Support for backups when running SolrCloud is provided with the Collections API <https://lucene.apache.org/solr/guide/7_4/collections-api.html#collections-api>. This allows the backups to be generated across multiple shards, and restored to the same number of shards and replicas as the original collection."* I tried to create a backup of one collection using this feature but it is giving me this error described here https://issues.apache.org/jira/browse/SOLR-12523. Can someone guide me on this and is there any other way to do this exercise which would take less time? Thanks, Anshuman
