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    <p>Thanks a lot Brend, able to run it now :)<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 03/22/2018 04:31 PM, Bernd Bausch
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:01e701d3c1cd$178c6650$46a532f0$@gmail.com">
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      <div class="WordSection1">
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The
            rngd service has nothing to do with your problem. It’s
            described as “Hardware RNG Entropy Gatherer Daemon” and
            probably fails because your DevStack runs in a VM, not on
            hardware.<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
            what I see, n-cpu fails because Paramiko, the Python library
            that implements the SSH protocol, succeeds in importing a
            module named gssapi, but then fails accessing an attribute
            GSSException in gssapi. This looks like what I see here: <a
              href="https://github.com/paramiko/paramiko/issues/584"
              moz-do-not-send="true">https://github.com/paramiko/paramiko/issues/584</a><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">It
            seems to me that you have the wrong Python module gssapi
            installed on that server. If you don’t use Kerberos for
            authentication, you shouldn’t have gssapi at all. When
            gssapi doesn’t exist, Paramiko doesn’t even try to access
            gssapi.GSSException. <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">Check
            if you have gssapi, and if so, remove it. Just look for a
            directory named *<b>gssapi</b>*, and do a <b>pip uninstall
            </b>on the name of that directory.<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">Bernd.<o:p></o:p></span></p>
        <p class="MsoNormal"><a name="_MailEndCompose"
            moz-do-not-send="true"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></a></p>
        <div>
          <div style="border:none;border-top:solid #E1E1E1
            1.0pt;padding:3.0pt 0in 0in 0in">
            <p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
                <a class="moz-txt-link-abbreviated" href="mailto:sagar.kohli@nic.in">sagar.kohli@nic.in</a> [<a class="moz-txt-link-freetext" href="mailto:sagar.kohli@nic.in">mailto:sagar.kohli@nic.in</a>] <br>
                <b>Sent:</b> Thursday, March 22, 2018 6:42 PM<br>
                <b>To:</b> Bernd Bausch <a class="moz-txt-link-rfc2396E" href="mailto:berndbausch@gmail.com"><berndbausch@gmail.com></a>;
                <a class="moz-txt-link-abbreviated" href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a><br>
                <b>Subject:</b> Re: [Openstack] Unable to start
                <a class="moz-txt-link-abbreviated" href="mailto:devstack@n-cpu.service">devstack@n-cpu.service</a><o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p>thanks for the response, as suggested I have tried
          stable/queens but still getting the same error.<br>
          Few observations <o:p></o:p></p>
        <ol start="1" type="1">
          <li class="MsoNormal"
            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0
            level1 lfo1">services rngd.service  and <a
              href="mailto:devstack@n-cpu.service"
              moz-do-not-send="true">devstack@n-cpu.service</a> are
            failed to start.<o:p></o:p></li>
          <li class="MsoNormal"
            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0
            level1 lfo1">processor family - AMD Phenom(tm) II X4 955
            Processor<o:p></o:p></li>
          <li class="MsoNormal"
            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0
            level1 lfo1">openvswitch.service is in exited state<o:p></o:p></li>
        </ol>
        <p class="MsoNormal"><br>
          please find attached <o:p></o:p></p>
        <ol start="1" type="1">
          <li class="MsoNormal"
            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1
            level1 lfo2">output of<b> journalctl-n-cpu</b><o:p></o:p></li>
          <li class="MsoNormal"
            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1
            level1 lfo2">output of systemctl list-units<o:p></o:p></li>
          <li class="MsoNormal"
            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1
            level1 lfo2">/etc/nova/nova.conf <o:p></o:p></li>
          <li class="MsoNormal"
            style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1
            level1 lfo2">/proc/cpuinfo<o:p></o:p></li>
        </ol>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p class="MsoNormal">On 03/22/2018 05:10 AM, Bernd Bausch
            wrote:<o:p></o:p></p>
        </div>
        <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In
              my experience, a DevStack cloned from the master branch
              (which is the default) may occasionally run into
              inconsistencies such as incompatible library versions. Try
              a stable branch e.g. </span><span
              style="font-size:10.0pt;font-family:Consolas">git clone
              ... –b stable/queens</span><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">.
              Or just clone the master again later.</span><o:p></o:p></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Your
              local.conf may also be at the origin of this error. </span><o:p></o:p></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The
              full stack trace with a little bit of context may also be
              helpful (</span><span
              style="font-size:10.0pt;font-family:Consolas">journalctl
              –u devstack@n-cpu</span><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">).
              It might contain other errors or warnings that provide a
              clue.</span><o:p></o:p></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Also
              look for Nova-related errors or warnings in the stack.sh
              log file.</span><o:p></o:p></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">                                                                                                                                                                   
            </span><o:p></o:p></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Bernd.</span><o:p></o:p></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><b><span
                style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
              Sagar Kohli [<a href="mailto:sagar.kohli@nic.in"
                moz-do-not-send="true">mailto:sagar.kohli@nic.in</a>] <br>
              <b>Sent:</b> Wednesday, March 21, 2018 6:08 PM<br>
              <b>To:</b> <a href="mailto:openstack@lists.openstack.org"
                moz-do-not-send="true">openstack@lists.openstack.org</a><br>
              <b>Subject:</b> [Openstack] Unable to start <a
                href="mailto:devstack@n-cpu.service"
                moz-do-not-send="true">devstack@n-cpu.service</a></span><o:p></o:p></p>
          <p class="MsoNormal"> <o:p></o:p></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt">I am trying
            to install devstack on my fresh centos7 machine. All went
            well.<br>
            But i am not able to get service  <a
              href="mailto:devstack@n-cpu.service"
              moz-do-not-send="true">devstack@n-cpu.service</a> up.
            following is the output of <span
              style="font-size:10.0pt;color:lightcoral;background:white">systemctl
              status <a href="mailto:devstack@n-cpu.service"
                moz-do-not-send="true">devstack@n-cpu.service</a></span><o:p></o:p></p>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <p class="MsoNormal"><span
                style="font-size:10.0pt;color:lightcoral"> <span
                  style="background:white">sudo systemctl status <a
                    href="mailto:devstack@n-cpu.service"
                    moz-do-not-send="true">devstack@n-cpu.service</a><br>
                  ● <a href="mailto:devstack@n-cpu.service"
                    moz-do-not-send="true">devstack@n-cpu.service</a> -
                  Devstack <a href="mailto:devstack@n-cpu.service"
                    moz-do-not-send="true">devstack@n-cpu.service</a><br>
                     Loaded: loaded (<a
                    href="mailto:/etc/systemd/system/devstack@n-cpu.service"
                    moz-do-not-send="true">/etc/systemd/system/devstack@n-cpu.service</a>;
                  enabled; vendor preset: disabled)<br>
                     Active: failed (Result: exit-code) since Wed
                  2018-03-21 15:22:55 EDT; 10h left<br>
                    Process: 4252 ExecStart=/usr/bin/nova-compute
                  --config-file /etc/nova/nova-cpu.conf (code=exited,
                  status=1/FAILURE)<br>
                   Main PID: 4252 (code=exited, status=1/FAILURE)<br>
                  <br>
                  Mar 21 15:22:55 localhost.localdomain
                  nova-compute[4252]: ERROR nova     from
                  paramiko.auth_handler import AuthHandler<br>
                  Mar 21 15:22:55 localhost.localdomain
                  nova-compute[4252]: ERROR nova   File
                  "/usr/lib/python2.7/site-packages/paramiko/auth_handler.py",
                  lin...module><br>
                  Mar 21 15:22:55 localhost.localdomain
                  nova-compute[4252]: ERROR nova     from
                  paramiko.ssh_gss import GSSAuth, GSS_EXCEPTIONS<br>
                  Mar 21 15:22:55 localhost.localdomain
                  nova-compute[4252]: ERROR nova   File
                  "/usr/lib/python2.7/site-packages/paramiko/ssh_gss.py",
                  line 54,...module><br>
                  Mar 21 15:22:55 localhost.localdomain
                  nova-compute[4252]: ERROR nova     GSS_EXCEPTIONS =
                  (gssapi.GSSException,)<br>
                  Mar 21 15:22:55 localhost.localdomain
                  nova-compute[4252]: ERROR nova AttributeError:
                  'module' object has no attribute 'GSSException'<br>
                  Mar 21 15:22:55 localhost.localdomain
                  nova-compute[4252]: ERROR nova <br>
                  Mar 21 15:22:55 localhost.localdomain systemd[1]: <a
                    href="mailto:devstack@n-cpu.service"
                    moz-do-not-send="true">devstack@n-cpu.service</a>:
                  main process exited, code=exited, status=1/FAILURE<br>
                  Mar 21 15:22:55 localhost.localdomain systemd[1]: Unit
                  <a href="mailto:devstack@n-cpu.service"
                    moz-do-not-send="true">devstack@n-cpu.service</a>
                  entered failed state.<br>
                  Mar 21 15:22:55 localhost.localdomain systemd[1]: <a
                    href="mailto:devstack@n-cpu.service"
                    moz-do-not-send="true">devstack@n-cpu.service</a>
                  failed.<br>
                  Hint: Some lines were ellipsized, use -l to show in
                  full.</span></span><o:p></o:p></p>
          </blockquote>
        </blockquote>
        <p class="MsoNormal"><o:p> </o:p></p>
      </div>
    </blockquote>
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