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Multi instance sites are unnecessarily chatty

Found in

EPiServer.CMS.Core 7.5.394.2

Fixed in

EPiServer.CMS.Core 11.11.2

(Or a related package)

Created

Feb 04, 2019

Updated

Feb 18, 2019

Area

CMS Core

State

Closed, Fixed and tested


Description

Every instance raises a event message (Hello) on startup that causes all instances to broadcast a message to all other instances (Awesome). Also, an event message is broadcast every 5 minutes from all instances (WhatsUp) that causes all other instances to respond to all instances (Awesome).

With a large number of instances, this can result in a substantial number of messages. This fix changes the previous behavior such that

  • Instances do not respond to Hello
  • They only send a heartbeat every 5 minutes

This is an internal API.