How to copy all documents from one solr server to another.
from mysolr import Solr
PACKET_SIZE = 5000
solr_source = Solr('http://server1:8080/solr/')
solr_target = Solr('http://server2:8080/solr/')
cursor = solr_source.search_cursor(q='*:*')
for resp in cursor.fetch(PACKET_SIZE):
source_docs = resp.documents
solr_target.update(source_docs)