Metacat replication needs email for failure (hub especially)
During current hub replication tests the replication stopped after 980 of approx
2700 documents. In addition to improving the error handling, an email should be
sent to all hub metacat administrators if a failure happens. While this is most
critical at initial startup when large numbers of documents may be replicated.
The bulk upload from lter sites may also create significant traffic. The email
message should include at least docid.