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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">Thanks Kebane, I test glance/neutron/keystone with ``x-openstack-request-id`` and find something interesting.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">I am able to pass ``x-openstack-request-id`` to glance and it will use the UUID as its request-id. But it failed with neutron and keystone.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">Here is my test:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><a href="http://paste.openstack.org/show/484644/">http://paste.openstack.org/show/484644/</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">It looks like because keystone and neutron are using oslo_middleware:RequestId.factory and in this part:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://github.com/openstack/oslo.middleware/blob/master/oslo_middleware/request_id.py#L35"><span style="color:#1F497D;mso-fareast-language:ZH-CN;text-decoration:none">https://github.com/openstack/oslo.middleware/blob/master/oslo_middleware/request_id.py#L35</span></a></span><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">It will always generate an UUID and append to response as ``x-openstack-request-id`` header.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">My question is should we accept an external passed request-id as the project’s own request-id or having its unique request-id?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">In other words, which one is correct way, glance or neutron/keystone? There must be something wrong with one of them.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">B.R<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN">Tan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></a></p>
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<p class="MsoNormal"><a name="_____replyseparator"></a><b><span lang="EN-US" style="mso-fareast-language:ZH-CN">From:</span></b><span lang="EN-US" style="mso-fareast-language:ZH-CN"> Kekane, Abhishek [mailto:Abhishek.Kekane@nttdata.com]
<br>
<b>Sent:</b> Wednesday, December 2, 2015 2:24 PM<br>
<b>To:</b> OpenStack Development Mailing List (openstack-dev@lists.openstack.org)<br>
<b>Subject:</b> Re: [openstack-dev] [nova][glance][cinder][neutron]How to make use of x-openstack-request-id<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<pre><span lang="EN-IN">Hi Tan,<o:p></o:p></span></pre>
<pre><span lang="EN-IN"><o:p> </o:p></span></pre>
<pre><span lang="EN-IN">Most of the OpenStack RESTful API returns `X-Openstack-Request-Id` in the API <span class="pln">response header but </span><span class="kwd">this</span><span class="pln"> request id </span><span class="kwd">is</span><span class="pln"> </span><span class="kwd">not</span><span class="pln"> available to the </span><span class="kwd">caller</span><span class="pln"> </span><span class="kwd">from</span><span class="pln"> the python client</span><span class="pun">.</span></span><span class="pun"><span lang="EN-US"><o:p></o:p></span></span></pre>
<pre><span class="pun"><span lang="EN-IN">When you use -–debug option from command from the command prompt using client, you can see </span></span><span class="str"><span lang="EN-IN">`X-Openstack-Request-Id`</span></span><span class="pln"><span lang="EN-IN"> on the console but it is not logged anywhere.</span><span lang="EN-US"><o:p></o:p></span></span></pre>
<pre><span class="pln"><span lang="EN-IN"><o:p> </o:p></span></span></pre>
<pre><span class="pln"><span lang="EN-IN">Currently a cross-project specs [1] is submitted and approved for returning </span></span><span class="str"><span lang="EN-IN">X-Openstack-Request-Id to the caller and the implementation for the same is in progress.</span><span lang="EN-US"><o:p></o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN">Please go through the specs for detail information which will help you to understand more about request-ids and current work about the same.<o:p></o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN"><o:p> </o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN">Please feel free to revert back anytime for your doubts.<o:p></o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN"><o:p> </o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN">[1] <a href="https://github.com/openstack/openstack-specs/blob/master/specs/return-request-id.rst">https://github.com/openstack/openstack-specs/blob/master/specs/return-request-id.rst</a><o:p></o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN"><o:p> </o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN">Thanks,<o:p></o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN"><o:p> </o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN">Abhishek Kekane<o:p></o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN"><o:p> </o:p></span></span></pre>
<pre><span class="str"><span lang="EN-IN"><o:p> </o:p></span></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
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<pre><span lang="EN-IN"><o:p> </o:p></span></pre>
<pre><span lang="EN-IN">Hi guys<o:p></o:p></span></pre>
<pre><span lang="EN-IN"> I recently play around with 'x-openstack-request-id' header but have a dump question about how it works. At beginning, I thought an action across different services should use a same request-id but it looks like this is not the true. <o:p></o:p></span></pre>
<pre><span lang="EN-IN"><o:p> </o:p></span></pre>
<pre><span lang="EN-IN">First I read the spec: <a href="https://blueprints.launchpad.net/nova/+spec/cross-service-request-id">https://blueprints.launchpad.net/nova/+spec/cross-service-request-id</a> which said "This ID and the request ID of the other service will be logged at service boundaries". and I see cinder/neutron/glance will attach its context's request-id as the value of "x-openstack-request-id" header to its response while nova use X-Compute-Request-Id. This is easy to understand. So It looks like each service should generate its own request-id and attach to its response, that's all.<o:p></o:p></span></pre>
<pre><span lang="EN-IN"><o:p> </o:p></span></pre>
<pre><span lang="EN-IN">But then I see glance read 'X-Openstack-Request-ID' to generate the request-id while cinder/neutron/nova read 'openstack.request_id' when using with keystone. It is try to reuse the request-id from keystone.<o:p></o:p></span></pre>
<pre><span lang="EN-IN"><o:p> </o:p></span></pre>
<pre><span lang="EN-IN">This totally confused me. It would be great if you can correct me or point me some reference. Thanks a lot<o:p></o:p></span></pre>
<pre><span lang="EN-IN"><o:p> </o:p></span></pre>
<pre><span lang="EN-IN">Best Regards,<o:p></o:p></span></pre>
<pre><span lang="EN-IN"><o:p> </o:p></span></pre>
<pre><span lang="EN-IN">Tan<o:p></o:p></span></pre>
<p class="MsoNormal"><span lang="EN-IN"><o:p> </o:p></span></p>
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