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<div class="moz-cite-prefix">I would also check permissions on log
file (maybe it has root owner or something).<br>
The best way is to start the service with the "neutron" user, it
might output a reason for the service to fail (I know it seems to
be running but it actually does not run).<br>
Also it might be good to run "echo $?" in order to try to spot the
issue by the return code.<br>
<br>
<br>
On 10/18/2013 12:05 PM, Li, Leon wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">From
the output, the RabbitMQ should be fine, right?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">root@xxxxxx:~#
service rabbitmq-server status<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Status
of node rabbit@i2052247 ...<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">[{pid,1779},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{running_applications,[{rabbit,"RabbitMQ","2.7.1"},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{os_mon,"CPO CXC 138 46","2.2.7"},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{sasl,"SASL CXC 138 11","2.1.10"},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{mnesia,"MNESIA CXC 138 12","4.5"},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{stdlib,"ERTS CXC 138 10","1.17.5"},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{kernel,"ERTS CXC 138 10","2.14.5"}]},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{os,{unix,linux}},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{erlang_version,"Erlang R14B04 (erts-5.8.5) [source]
[64-bit] [rq:1] [async-threads:30] [kernel-poll:true]\n"},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{memory,[{total,26175728},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{processes,11653152},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{processes_used,11644440},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{system,14522576},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{atom,1124433},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{atom_used,1120215},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{binary,126024},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{code,11134393},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{ets,819856}]},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{vm_memory_high_watermark,0.3999999994248726},<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
{vm_memory_limit,417298841}]<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">...done.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">root@xxxxxx:~#<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Leon<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Sushma Korati [<a class="moz-txt-link-freetext" href="mailto:sushma_korati@persistent.co.in">mailto:sushma_korati@persistent.co.in</a>] <br>
<b>Sent:</b> 2013</span><span
style="font-size:10.0pt;font-family:SimSun" lang="ZH-CN">年</span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">10</span><span
style="font-size:10.0pt;font-family:SimSun" lang="ZH-CN">月</span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">13</span><span
style="font-size:10.0pt;font-family:SimSun" lang="ZH-CN">日</span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
0:23<br>
<b>To:</b> Li, Leon<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a><br>
<b>Subject:</b> RE: [Openstack] [neutron] Connection to
neutron failed: Maximum attempts reached<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">Hi
Li, <o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">I
am not sure how to clear connection pool but even we
faced a similar issued because rabiitmq server was not
running.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">Can
you check if AMQP server is running properly or not?<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p> </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;color:black">Regards,</span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;color:black">Sushma
Korati </span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p></o:p></span></p>
</div>
<div>
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style="font-size:10.0pt;color:black"><a
moz-do-not-send="true"
href="mailto:sushma_korati@persistent.co.in">sushma_korati@persistent.co.in</a>
| Tel: +91(40)674 42244</span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p></o:p></span></p>
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<div class="MsoNormal" style="text-align:center"
align="center"><span style="color:black">
<hr align="center" size="3" width="100%"></span></div>
<div id="divRpF962100">
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">
Li, Leon [<a class="moz-txt-link-abbreviated" href="mailto:Leon.Li2@emc.com">Leon.Li2@emc.com</a>]<br>
<b>Sent:</b> Saturday, October 12, 2013 2:04 PM<br>
<b>To:</b> <a moz-do-not-send="true"
href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a><br>
<b>Subject:</b> [Openstack] [neutron] Connection to
neutron failed: Maximum attempts reached</span><span
style="color:black"><o:p></o:p></span></p>
</div>
<div>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi,</span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I’m
installing Havana and meet a problem when run
command “neutron agent-list”. </span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">root@i2052247:~#
neutron agent-list</span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">Connection
to neutron failed: Maximum attempts reached</span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Actually
it would have same failure when run any neutron
command. </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I
found bugs <a moz-do-not-send="true"
href="https://bugs.launchpad.net/neutron/+bug/1211915"
target="_blank">https://bugs.launchpad.net/neutron/+bug/1211915</a>
and <a moz-do-not-send="true"
href="https://bugs.launchpad.net/nova/+bug/1229475/comments/14"
target="_blank">https://bugs.launchpad.net/nova/+bug/1229475/comments/14</a>.
Workaround is “</span><span style="color:black"> Forcibly
clear connection pool</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">“.
</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Does
anyone know how to clear connection pool on
Neutron/Havana?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Leon</span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><span
style="color:black"><o:p></o:p></span></p>
</div>
</div>
</div>
</div>
</div>
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<br>
<pre class="moz-signature" cols="72">--
Thanks,
Rami Vaknin, QE @ Red Hat, TLV, IL.
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