[ https://issues.apache.org/jira/browse/ARTEMIS-2844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Domenico Francesco Bruscino closed ARTEMIS-2844. ------------------------------------------------ Fix Version/s: 2.15.0 Resolution: Done > Improve MQTT subscribe/unsubscribe topic performance > ---------------------------------------------------- > > Key: ARTEMIS-2844 > URL: https://issues.apache.org/jira/browse/ARTEMIS-2844 > Project: ActiveMQ Artemis > Issue Type: Improvement > Components: Broker, MQTT > Affects Versions: 2.14.0 > Reporter: Francesco Nigro > Priority: Major > Fix For: 2.15.0 > > Time Spent: 1.5h > Remaining Estimate: 0h > > MQTT (and not only) is severely effected on its performance while > subscribing/unsubscribing when many topics are existing because: > * SimpleAddressManager::getMatchingBindings/getDirectBindings are performing > a linear search on all the existing Bindings > * the results of the previous matches are saved into a Bindings instance even > if not necessary (note: Bindings perform atomic operations while saving the > matching Binding) > * All the MQTT operations are performed in the Netty event loop -- This message was sent by Atlassian Jira (v8.3.4#803005)