Sun GlassFish Message Queue 4.4 Administration Guide

Durable and Nondurable Subscriptions

Subscribers to a topic destination fall into two categories, those with durable and nondurable subscriptions.

Durable subscriptions provide increased reliability but slower throughput, for the following reasons:

We compared performance for durable and nondurable subscribers in two cases: persistent and nonpersistent 10k-sized messages. Both cases use AUTO_ACKNOWLEDGE acknowledgment mode. We found an effect on performance only in the case of persistent messages which slowed durables by about 30%