replacing solr index when you modified solr configuration in solr4.1

you can not restart solrCloud in the production environment , so if you want to replace the index when the configuration has been changed,HOW to do it?

1.prepare the new collection data,example : new_collection;upload new configurations

2.add core new_collection

3.swap old collection with the new_collection

4.unload the new_collection

 

PS: if the collection is not avaliable , pls reload the collection.