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<p class=MsoNormal>Hi every body.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>I’m quite new with RabbitMQ, so sorry
if my question is stupid.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I’am currently setting a Shovel
configuration to forward messages from one broker to another, <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>to have a two sites Active/Semi-Active
configuration. Incoming messages must be processed by both sites.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I have set a very small testing
configuration with 2 hosts.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>‘Active host’ is running
RabbitMQ 2.7.1 on Windows, as ‘Semi-Active’ is running RabbitMQ
2.6.1 on RedHat6.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>The test configuration is as following:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>- messages are posted by clients to a
direct Exchange named ‘public’<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>- consumers bind to transient queues to the
‘public’ exchange, with a specific key<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Each consumer read a
message and stores it on disk.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>- obviously I don’t want to lost any message<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>My Shovel configuration has: (see attached
rabbitmq.config files)<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'>1-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>On the Active side:<o:p></o:p></span></p>
<p class=MsoListParagraph><span lang=EN-US>- a persistent queue bound to ‘public’
exchange with all possible keys. So every incoming message is read by the
Shovel plug-In (that’s OK)<o:p></o:p></span></p>
<p class=MsoListParagraph><span lang=EN-US>- a Shovel declaration to forward messages
to the distant exchange declared for the <o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
lang=EN-US><span style='mso-list:Ignore'>2-<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US>On the Semi-Active side:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><span lang=EN-US>- a topic exchange
to which Shovel forwards messages (that’s also OK)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><span lang=EN-US>- a persistent queue
bound to this topic exchange<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><span lang=EN-US>- a Shovel
declaration to forward messages into the local ‘public’ Exchange.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Everything is fine and messages are going
from Active side to Semi-Active one.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Except when consumers are not running on
the Semi-Active side.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>In that case, messages are sent to ‘public’
Exchange and are lost because nobody is bound to.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>despite the setting : ack_mode, on_confirm<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Nb: if the ‘Semi-Active side’
is not started at all, it’s OK messages are kept in the persistent queue<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>On the Active side.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I’am looking for a way of configuring
Shovel plug-in to keep messages in persistent queue until<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>a consumer can process them.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I thing I am probably wrong with my
configuration, but I can’t figure where ??<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Thank’s a lot.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Denis<o:p></o:p></span></p>
</div>
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