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Hi Rob,<br>
<br>
I've been trying to test this once more. I can't seem to subscribe to the correct queue/topic.<br>
If I have a topic called "topic" and a subscription called "subscription" which points to "topic" I can't subscribe to "subscription". When I subscribe to "topic" I receive the messages. When I subscribe to "topic/#" I receive each message twice.<br>
I might be doing something wrong here. Any suggestions?<br>
<br>
Kind regards,<br>
Bob<br>
<br>
On 1/18/19 6:26 PM, Rob Godfrey wrote:<br>
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<div dir="ltr">On Fri, 18 Jan 2019 at 17:27, Bob Claerhout <<a href="mailto:bob.claerhout@aloxy.io" moz-do-not-send="true">bob.claerhout@aloxy.io</a>> wrote:<br>
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<div bgcolor="#FFFFFF">Hi Rob,<br>
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Thanks for your quick response. The sharded topic is indeed working as expected. I also saw a new pull request containing a fix for this issue. Nice!<br>
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<div>No problem - sorry you ran into that issue!</div>
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<div bgcolor="#FFFFFF">Glad to hear my assumptions(please correct me if I'm wrong) are correct concerning the topic (except for the the pattern). Do you have any idea on when this pattern matching for subscriptions will be implemented?<br>
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<div>It's not currently scheduled - though we are about to start thinking about what we'll be working on for the next release after 0.26. As above, I'm not saying it definitely doesn't do already do the wildcard matching, I just don't *think* it does :) (If
you test it and it does indeed work as expected then let me know and I'll correct my understanding). It's worth creating an issue (enhancement) for it in GitHub and then we'll not lose track of it.</div>
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<div>Cheers,</div>
<div>Rob</div>
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<div bgcolor="#FFFFFF">Kind regards,<br>
Bob <br>
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<div class="gmail-m_-754233598637860205moz-cite-prefix">On 1/18/19 5:05 PM, Rob Godfrey wrote:<br>
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<div>Hi Bob,</div>
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<div dir="ltr">On Fri, 18 Jan 2019 at 15:14, Bob Claerhout <<a href="mailto:bob.claerhout@aloxy.io" target="_blank" moz-do-not-send="true">bob.claerhout@aloxy.io</a>> wrote:<br>
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<div bgcolor="#FFFFFF">Hi all,<br>
<br>
I'm in the dark about the topics and subscriptions in Enmasse.<br>
I'm currently using a standard addressspace in Enmasse 0.24.1 and using the documentation from
<a class="gmail-m_-754233598637860205gmail-m_6983913513413609553moz-txt-link-freetext" href="http://enmasse.io/documentation/0.24.1/openshift/#con-standard-address-space-messaging" target="_blank" moz-do-not-send="true">
http://enmasse.io/documentation/0.24.1/openshift/#con-standard-address-space-messaging</a>. Also I'm using qpid-bow as the consumer and publisher (<a class="gmail-m_-754233598637860205gmail-m_6983913513413609553moz-txt-link-freetext" href="https://github.com/Bynder/qpid-bow" target="_blank" moz-do-not-send="true">https://github.com/Bynder/qpid-bow</a>).<br>
I'm having two questions:<br>
My first questions is about the wildcards:<br>
<blockquote>The documentation states that:<br>
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<li>a/#/b matches a/foo/b, a/bar/b, and a/foo/bar/b </li><li>a/+/b matches a/foo/b and a/bar/b, but would not match a/foo/bar<br>
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I've created a topic address "addressspace/test".<br>
I'm performing my subscriptions using following command: "qb message receive addressspace/test".<br>
I'm performing my publications using following command: "qb message send addressspace/test message".<br>
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When I'm subscribing to "addressspace/test" and publishing to "addressspace/test" the subscriber receives the message.<br>
When I'm subscribing to "addressspace/test/foo" and publishing to "addressspace/test/foo" the subscriber receives the message.<br>
However, when I'm subscribing to "addressspace/test/+" and publishing to "addressspace/test/foo" the subscriber does not receive the message although stated by the documentation. When I publish to "addressspace/test/+" it is received by the subscriber.<br>
Also, when I'm subscribing to "addressspace/test/#" and publishing to "addressspace/test/foo" the subscriber does not receive the message although stated by the documentation. When I publish to "addressspace/test/#" it is received by the subscriber.<br>
When I'm subscribing to "addressspace/test.*" and publishing to "addressspace/test.foo" the subscriber also receives the message. I got this from the automated tests.<br>
Can somebody point me towards what I'm doing wrong or did I wrongly interpreted the documentation?<br>
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<div>Unfortunately you are possibly doing nothing wrong, and it is probably a bug. For your topic, which "plan" are you using? Reviewing the configuration it looks like there's a but in EnMasse that for small (pooled) topics the pattern matching is not being
correctly applied. For large (sharded) topics the pattern matching configuration looks correct in the code. If you are using a pooled topic, can you re-test with a sharded topic and see if it works for you then? </div>
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<div bgcolor="#FFFFFF">My second question is about the subscription address.<br>
<blockquote>Just verifying my assumptions:<br>
Say I have a topic "test" and I create a subscription, called "foo", on topic "test/foo/+" every message on topic "test/foo/[anything]"(if my assumption in the previous question is correct) should be forwarded and stored in the subscription "foo". When a client
connects to "foo", it receives all messages in the queue.<br>
When I have the same topic "test" and I create an additional subscription, called "bar", on topic "test/foo/bar" every message on topic "test/foo/bar" should be forwarded and stored in both subscription "foo" and "bar". When a client connects to "foo", it will
receive all messages to "test/foo/+" including the ones to "test/foo/bar". When a client connects to "bar" it will receive all message to "test/foo/bar".<br>
Are my assumptions correct?<br>
<br>
Additional sub question:<br>
I'm trying to create a subscription using following yaml template, is this correct?<br>
- kind: Address<br>
apiVersion: <a href="http://enmasse.io/v1alpha1" target="_blank" moz-do-not-send="true">
enmasse.io/v1alpha1</a><br>
metadata:<br>
name: foo<br>
spec:<br>
address: foo<br>
topic: test/foo/+<br>
type: topic<br>
plan: standard-small-topic<br>
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<div>I don't believe that subscription addresses currently support subscribing to a pattern (rather only to the root of a topic). I may be wrong, but that is probably an (obvious) enhancement request.</div>
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<div bgcolor="#FFFFFF">Can somebody please clarify these things for me and maybe provide working examples?<br>
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<div>Hope this helps a little</div>
<div>-- Rob</div>
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<div bgcolor="#FFFFFF">Thanks!<br>
<br>
Bob Claerhout<br>
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<td><b>Bob Claerhout</b><br>
Software developer<br>
M +32 479 34 84 92<br>
The Beacon, Sint-Pietersvliet 7, 2000<br>
Antwerp<br>
<a href="mailto:bob.claerhout@aloxy.io" target="_blank" moz-do-not-send="true">bob.claerhout@aloxy.io</a> |
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