Reindex Solr collections after upgrading the cluster

After upgrading to , you have to recreate the empty Solr collections with the updated configuration.

Cloudera does not support upgrading the underlying index files from CDH 5 to Cloudera Runtime 7.1.1 or higher, so you must reindex your collections.

Apache Solr does not have dedicated reindexing functionality. To reindex a collection, select the batch indexing procedure most appropriate to your use case.