NEX-2394 mountd() door services are sub-optimal in large scale deployments
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Reviewed by: Rob Gittins <rob.gittins@nexenta.com>
Reviewed by: Kevin Crowe <kevin.crowe@nexenta.com>
Reviewed by: Ryuji Masuda <ryuji.masuda@nexenta.com>
Reviewed by: Kirill Davydychev <kirill.davydychev@nexenta.com>