MQTT 3.1 and 3.1.1 clients using a clean session should have a
*non-durable* subscription queue. If the broker restarts the queue
should be removed. This is due to [MQTT-3.1.2-6] which states that the
session (and any state) must last only as long as the network
connection.
It would be useful to be able to cycle the embedded web server if, for
example, one needed to renew the SSL certificates. To support
functionality I made a handful of changes, e.g.:
- Refactoring WebServerComponent so that all the necessary
configuration would happen in the start() method.
- Refactoring WebServerComponentTest to re-use code.
Allow replication only certain addresses with mirror controller.
The configuration is similar to cluster address configuration.
Co-authored-by: Robbie Gemmell <robbie@apache.org>
The commit includes the following changes:
- Don't drop the connection on subscribe or publish authorization
failures for 3.1 clients.
- Don't drop the connection on subscribe authorization failures for
3.1.1 clients.
- Add configuration parameter to control behavior on publish
authorization failures for 3.1.1 clients (either disconnect or not).
Mainly refactoring the address docs. This commit has the following
changes:
- Remove examples for discouraged use-cases (e.g. using anycast and
multicast on the same address).
- Reword to use configuration terms wherever possible. For example,
instead of saying "point-to-point" (which is not a configuration term)
say "anycast". References to things like "point-to-point" and
"publish-subscribe" are still there since users are familiar with these
terms. They're just used much less often.
- Remove duplicate explanation of exclusive queues.
- Remove duplicate explanation of auto-create and auto-delete elements.
- Re-create graphics and include the master SVGs for potential updates
later.
- Give non-destructive queues its own chapter.
- Add details about specifying routing type using a message property.
- Update the styling on the user manual's cover page to look better.
- Lots of re-wording for clarity's sake.
- Re-order sub-sections for clarity's sake.
- Break up the address model and the settings documentation. The
settings documentation is large and deserves its own chapter. The
original anchor link is still available with a link to the new chapter.
In general the address-specific documentation should be much more clear,
concise, and consistent now.
JGroups 3.x hasn't been updated in some time now. The last release was
in April 2020 almost 2 years ago. Lots of protocols have been updated
and added and users are wanting to use them. There is also increasing
concern about using older components triggered mainly by other
recently-discovered high-profile vulnerabilities in the wider Open
Source Java community.
This commit bumps JGroups up to the latest release - 5.2.0.Final.
However, there is a cost associated with upgrading.
The old-style properties configuration is no longer supported. I think
it's unlikely that end-users are leveraging this because it is not
exposed via broker.xml. The JGroups XML configuration has been around
for a long time, is widely adopted, and is still supported. I expect
most (if not all) users are using this. However, a handful of tests
needed to be updated and/or removed to deal with this absence.
Some protocols and/or protocol properties are no longer supported. This
means that users may have to change their JGroups stack configurations
when they upgrade. For example, our own clustered-jgroups example had to
be updated or it wouldn't run properly.
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.
* Add BindingDTO to allow configuring multiple addresses to listen on
* Start a new ServerConnector for each binding and deploy the corresponding web-applications
* Update documentation and tests
* Add tests to verify old and new configuration style produce equal results
* Add BindingDTO to allow configuring multiple addresses to listen on
* Start a new ServerConnector for each binding and deploy the corresponding web-applications
* Update documentation and tests
* Add tests to verify old and new configuration style produce equal results
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
Clebert Suconic
Justin Bertram
Vilius Šumskas
iliya
Robbie Gemmell
waldi5001
AntonRoskvist
Tiago Bueno
Domenico Francesco Bruscino
franz1981
gtully
Matteo Baccan
Luis De Bello
Gergő Rubint
Paul Wright
Marlon Müller