title: single-user group method in signalr
body: <p>Is there any disadvantage if we use single-user group method instead of keeping identity and connections in a list as mentioned in below link. If so we can avoid keeping connections in memory or database. Please advice, will this make any issue with web farm.</p>
  
  <p><a href="https://www.asp.net/signalr/overview/guide-to-the-api/mapping-users-to-connections" rel="nofollow noreferrer">https://www.asp.net/signalr/overview/guide-to-the-api/mapping-users-to-connections</a></p>