It is safe to change feed.db after an error?

[Pedro Narciso García Revington]

I want to use follow to listen changes from a couchdb server.
If that server dies, I want to follow the changes from a replica.

Code is something like this:

feed.on('retry', function(){                               
      feed.db = getTheNewServerToFollow();
});

Do you think it is correct? Do you think there is a better approach?