Hi Rony, Amazon MQ for ActiveMQ is a managed service and as such it only supports a limited set of XML configuration attributes. In this case, you are not able to configure any attributes for the MQTT connector. You can find the full Amazon MQ XML schemas here: https://docs.aws.amazon.com/amazon-mq/latest/developer-guide/amazon-mq-broker-configuration-parameters.html
The Amazon MQ team can enable NIO for you if you create a support case. I hope that helps! Lucas On 2022-12-22, 12:42 PM, "Rony Christian" <rony.christ...@petpooja.com.INVALID> wrote: CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe. Hello team, We are trying to implement mqtt+nio but unfortunately are not able to configure it. following are the code what we try to update on configuration xml: <transportConnectors> <transportConnector name="mqtt+nio" uri= "mqtt+nio://localhost:1883"/> </transportConnectors> Getting following error: Error info: The specified XML configuration data is invalid: cvc-attribute.3: The value 'nio' of attribute 'name' on element 'transportConnector' is not valid with respect to its type, 'protocol'. and cvc-enumeration-valid: Value 'nio' is not facet-valid with respect to enumeration '[openwire]'. It must be a value from the enumeration. We are using amazon activemq service. Please let us know how to configure it.