Comment 8 for bug 294726

Escalating to critical on the grounds it's a user-affecting external failure.

This is also impacting the udd package importer in for example http://package-import.ubuntu.com/status/language-pack-gnome-ca.html#2011-07-18 07:27:28.730318

Though it's a slightly different error:

bzrlib.errors.UnknownErrorFromSmartServer: Server sent an unexpected error: ('error', '<ProtocolError for xmlrpc.lp.internal:8097/codehosting: 503 Service Unavailable>')

 * i don't know if this is recording an oops
 * if there is an oops, the bzr server is failing to pass it through
 * the ssh server could possibly retry a couple of times (I don't know if it would help)