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ARTEMIS-4213 doc update added some Broker Properties reference and added s… #4410

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…ome docs to the schema

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brusdev commented Mar 22, 2023

@andytaylor could you create a JIRA to track this change?

@andytaylor andytaylor changed the title NO-JIRA doc update added some Broker Properties reference and added s… ARTEMIS-4213 doc update added some Broker Properties reference and added s… Mar 22, 2023
@@ -481,3 +484,285 @@ Name | Description | Default
[password](amqp-broker-connections.md#amqp-server-connections) | Broker authentication password (optional) | n/a
[reconnect-attempts](amqp-broker-connections.md#amqp-server-connections) | How many attempts should be made to reconnect after failure. | -1 (infinite)
[auto-start](amqp-broker-connections.md#amqp-server-connections) | Broker connection starts automatically with broker | true


## Broker Properties Reference
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This perhaps do with a small intro like the earlier sections, maybe a reference to the doc on how to actually use these properties and how their naming convention relates to the XML config and code.

Would also be worth a warning that the property values set will override existing XML config, which can in turn already have overridden any 'real code default' (which the XML does so out of the box for some things), meaning some of the below listed Default values may not actually match the no-property-defined 'effective-default' at all, since they are defined differently in the xml config they use/get (either by them previously...or right out of the box in the 'default xml config' in some cases).

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As there is no specific pattern to these (as far as I recall from conversations with Gary), coming up with the explicit naming convention could prove difficult. It's one of the things I've tried to push for ...

Disclaimer about precedence / priority for application of configuration would be definitely beneficial.

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The documentation I suggested referencing outlines the naming to an extent already, https://github.com/apache/activemq-artemis/blob/2.28.0/docs/user-manual/en/configuration-index.md#broker-properties

I think even more so now that the behaviour arounds defaults need to be clearer. It came up in another context since that earlier comment, in #4297 where I eventually realised (and argued, it isnt clear to a user of it) that the 'properties image' will actually behave quite differently out-of-the-box than the standalone broker and artemis-docker based images that use the 'standard supplied XML' which already overrides various code defaults. This PRs existing docs on 'Default' would actually currently best suit/describe what happens in a 'properties-only image' case, while potentially misleading in the 'standard supplied XML image' currently.

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