Configuring conflation

Use the CONFLATION topic property to select a conflation policy for a topic.

You can specify the conflation policy for each topic when it is created, using the CONFLATION topic property. The default policy is "conflate" (see below).

Conflation policies

Use the CONFLATION topic property to set a topic's conflation policy using one of the following values.

Table 1. Conflation topic properties
Property	Description
conflate (default)	Only conflate topics when a session with a full queue receives a new message.
always	An 'eager' policy that conflates updates as they arrive. If enabled, the queue will only ever contain one update.
off	Disable conflation for this topic. Sessions receive every update.
unsubscribe	When a session with a full queue receives a new message, unsubscribe the session with unsubscribe reason BACK_PRESSURE.