---
summary: Support for HSes (or ASes) to participate in a room irrespective of whether members are present
---
created: 2015-04-27 13:28:30.0
creator: matthew
description: |-
  Currently, a room can only be replicated on a HS if that HS has a user present in the room.  This introduces some potential limitations:

  * You can't deliberately replicate a room over a cluster of HSes for HA
  * The HS (or AS) can't participate in a room as an admin superuser as suggested in SPEC-159, to ensure there's always a 'god' user present in case of disaster.
  * You can't have invisible AS users
  * ...probably others i've forgotten.
id: '11377'
key: SPEC-160
number: '160'
priority: '2'
project: '10001'
reporter: matthew
status: '10100'
type: '2'
updated: 2016-10-28 16:27:17.0
votes: '0'
watches: '3'
workflowId: '11477'
---
actions:
- author: erikj
  body: |-
    Other use cases:
     - Allow HSes to have aliases for rooms even if all its users have left.
     - Allow rooms to be kept alive if all users leave.
  created: 2015-04-27 13:31:00.0
  id: '11539'
  issue: '11377'
  type: comment
  updateauthor: erikj
  updated: 2015-04-27 13:31:00.0
- author: erikj
  body: One way to implement this is by allowing generic entities to send events rather than just users; where entity here is probably just users and servers.
  created: 2015-04-27 13:33:33.0
  id: '11540'
  issue: '11377'
  type: comment
  updateauthor: erikj
  updated: 2015-04-27 13:33:33.0
- author: richvdh
  body: 'Migrated to github: https://github.com/matrix-org/matrix-doc/issues/499'
  created: 2016-10-28 16:27:17.0
  id: '13307'
  issue: '11377'
  type: comment
  updateauthor: richvdh
  updated: 2016-10-28 16:27:17.0