We have a database on host A with 8.5 millions document. The size of the database is ~450GO.
We first tried to start a continuous replication on a second host B. The replication stoped after only 1Go have been copied, and the replication never started again.
We then copied the database file from host A on host B. When the file was copied, we started a replication from A to B, then the couchdb on host B crashed. It tooks a long time to fetch a list of IDs, then it appears in the logfile that a time out occured on host B, and immediatly after the couchdb instance on host B crashed.