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<p class="MsoNormal"><span style="color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Let me know for your opinion about this .<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D">Thanks & regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Keshava.A<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> A, Keshava <br>
<b>Sent:</b> Friday, May 30, 2014 10:59 AM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Cc:</b> A, Keshava<br>
<b>Subject:</b> [openstack-dev] Number of RabbitMQ connection : Some connection without consumers ?
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal">It is observed that RabbitMQ “number of connection” will vary and sometime connection without any consumers.<o:p></o:p></p>
<p class="MsoNormal">OpenStack controller connected to 2 compute nodes ( each with a VM) and NN node scenario.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>RabbitMQ connection will vary (like 6, 7, 8 connection) w.r.t one Compute-Node.<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">For as many number of ‘X + N’ connection there are X number of consumer ?
<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>For 2-3 connections there are no consumers. But the connection continue to exist.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><u>Question:<o:p></o:p></u></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A.<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.25in">Is it the behavior it is observed ? Is it because stale of connection ?
<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.25in">Or message is getting Time-out ( TTL) in the Queue and once its timed out it cannot fetched out and cannot delivered to consumers, because of this connection remain stale ?
<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.25in">Uncleaned Socket connection ? <o:p>
</o:p></p>
<p class="MsoNormal" style="text-indent:.25in"><o:p> </o:p></p>
<p class="MsoNormal">B. Who creates some of the reply queues (ex : reply_844c53cf0eb54b5b9abf1e3b4b3a0404) and which point of time ?
<o:p></o:p></p>
<p class="MsoNormal"> How to know this ? <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><u>Below are the data collected from rabbit-MQ.<o:p></o:p></u></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Compute Node-1:- (100.10.10.51)<o:p></o:p></p>
<p class="MsoNormal">==============<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">1. On the connection 100.10.10.51:40488 -> 100.10.10.53:5672<o:p></o:p></p>
<p class="MsoNormal"> queue :<o:p></o:p></p>
<p class="MsoNormal"> q-agent-notifier-network-delete_fanout_19cd5e739c1d49d5bae4b1c24026ae2b<o:p></o:p></p>
<p class="MsoNormal"> q-agent-notifier-port-update_fanout_c970ccc903364b14a8b6ff44a8cb9f2f<o:p></o:p></p>
<p class="MsoNormal"> q-agent-notifier-security_group-update_fanout_57f9d018da9e4f9b8b7f33259c60692b<o:p></o:p></p>
<p class="MsoNormal"> q-agent-notifier-tunnel-update_fanout_5705b3b7de7d46cb9650706332405955
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">2. On the connection 100.10.10.51:40485 -> 100.10.10.53:5672 (1)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Queue:<o:p></o:p></p>
<p class="MsoNormal">compute.sdn-keshava-cn1<o:p></o:p></p>
<p class="MsoNormal">compute_fanout_b092ea21d2dc425ca13b376d1731df9f<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">3. On the connection 100.10.10.51:40484 -> 100.10.10.53:5672 (1)<o:p></o:p></p>
<p class="MsoNormal">queue:<o:p></o:p></p>
<p class="MsoNormal">There is no consumers .<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">4.On the Connection 100.10.10.51:40486 -> 100.10.10.53:5672<o:p></o:p></p>
<p class="MsoNormal">queue:<o:p></o:p></p>
<p class="MsoNormal">reply_844c53cf0eb54b5b9abf1e3b4b3a0404<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">5.On the connection 100.10.10.51:40487 -> 100.10.10.53:5672<o:p></o:p></p>
<p class="MsoNormal">queue:<o:p></o:p></p>
<p class="MsoNormal">reply_77584ebd2bc143db922830683df65c89<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">6.On the Connection 100.10.10.51:40489 -> 100.10.10.53:5672<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Queue:<o:p></o:p></p>
<p class="MsoNormal">There are no consumers.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks & regards,<o:p></o:p></p>
<p class="MsoNormal">Keshava.A<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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