[
https://issues.apache.org/jira/browse/ARTEMIS-2888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17196961#comment-17196961
]
Florian Meister commented on ARTEMIS-2888:
------------------------------------------
# Create an anycast queue for +/bar.
{code:java}
<address name="*.bar">
<anycast>
<queue name="anycastbarqueue" />
</anycast>
</address>
{code}
# Set max-size and page-size to small values to force paging immediately
(optional)
{code:java}
<address-setting match="*.bar">
<max-size-bytes>100</max-size-bytes>
<page-size-bytes>10</page-size-bytes>
<address-full-policy>PAGE</address-full-policy>
</address-setting>
{code}
# Add a subscriber to +/bar with QOS 1.
# Add a publisher, frequently publishing messages with QOS 1.
# Disconnect the subscriber (not unsubscribe).
# Wait until Artemis starts paging for +/bar.
# Connect the subscriber again.
# Messages gets delivered which were queued previously
# Disconnect Subscriber
# Reconnect Subscriber
# Publish messages while subscribed
# When publishing while subscribed every 2nd message is sent with topic-filter
instead of topic name
{code:java}
root@tnetw0605:/etc/logstash/conf.d# mosquitto_sub -h mqtt.dev.smartprod.io -u
user -P password -i barsubscriber -t "+/bar" -v
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
514e4d21-2307-11e9-ad2f-005056b451d2/bar test
+/bar test
{code}
# When subscribing after publishing some messages every message is delivered
with topic-filter instead of topic name
{code:java}
root@tnetw0605:/etc/logstash/conf.d# mosquitto_sub -h mqtt.dev.smartprod.io -u
user -P password -i barsubscriber -t "+/bar" -v
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
+/bar test
{code}
> MQTT spec violation when subscribed to wildcard topic
> -----------------------------------------------------
>
> Key: ARTEMIS-2888
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2888
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: MQTT
> Affects Versions: 2.14.0
> Environment: *Message Producer:*
> MQTTnet Client
> published Message to
> 0e5ed50e-ccea-4a42-8c3e-db0e2780222b/from-smart-acquisition-device/machine-state/event/off
>
> *Message Consumer:*
> MQTT Paho Java Client, also tested with HiveMQ Java Client.
> Subscribed to +/from-smart-acquisition-device/machine-state/event/off
> Reporter: Florian Meister
> Priority: Major
> Attachments: image-2020-08-27-12-37-01-479.png
>
>
> Sometimes the topic name of published messages contains the topic filter
> instead of the topic name.
> This is neither correct nor allowed in the MQTT 3.1.1 specification:
> [http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718106]
>
> Below a screenshot of an example MQTT Packet sent from the Artemis Broker
> !image-2020-08-27-12-37-01-479.png!
>
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