MQTT 5 is an OASIS standard which debuted in March 2019. It boasts
numerous improvments over its predecessor (i.e. MQTT 3.1.1) which will
benefit users. These improvements are summarized in the specification
at:
https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901293
The specification describes all the behavior necessary for a client or
server to conform. The spec is highlighted with special "normative"
conformance statements which distill the descriptions into concise
terms. The specification provides a helpful summary of all these
statements. See:
https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901292
This commit implements all of the mandatory elements from the
specification and provides tests which are identified using the
corresponding normative conformance statement. All normative
conformance statements either have an explicit test or are noted in
comments with an explanation of why an explicit test doesn't exist. See
org.apache.activemq.artemis.tests.integration.mqtt5 for all those
details.
This commit also includes documentation about how to configure
everything related to the new MQTT 5 features.
scenario - avoid paging, if address is full chain another broker and produce to the head, consume from the tail using producer and consumer roles to partition connections. When tail is drained, drop it.
- adds a option to treat an idle consumer as slow
- adds basic support for credit based address blocking ARTEMIS-2097
- adds some more visiblity to address memory usage and balancer attribute modifier operations
The HTML output methods are hold-overs from way back when the code-base
started off as JBoss Messaging 2 and the broker mainly ran in JBoss AS 4
and 5 which leveraged an HTML-based JMX console where these methods
would be executed and spit out nicely formatted data. That stuff has all
long since been retired so this commit deprecates the HTML-based
management methods so they can be removed completely in a future release.
JSON is a better structured output format for this and most of the
deprecated methods have JSON alternatives.
Commit 481b73c8ca from ARTEMIS-3502
inadvertently broke this functionality. This commit restores the
original behavior.
autoDeleteAddress was renamed to forceAutoDeleteAddress which will ignore the address settings.
delete temporary queues will use forceAutoDeleteAddress=true.
this is done in collaboration with Justin Bertram
- Avoid blowing up on string bodies of any size if the valueSizeLimit bits are configured to disable limit
- Dont NPE if amqp-value + binary body is sent without a content-type, as it always should be.
- Include expected prefix when adding delivery delay and ingress time annotations.
- Use the actual name for ingress time annotation, as with all other annotations.
- Use correct object type when testing equality with content-type value.
- Use consistent case for 'groupId' in different properties.
Justin Bertram
Robbie Gemmell
gtully
Clebert Suconic
franz1981
Emmanuel Hugonnet
Ryan Yeats
Domenico Francesco Bruscino
Erwin Dondorp
Asukwo-comfort
domson-tech
nbrendah
Andy Taylor