<p dir="ltr">Remo us right,<br></p>
<p dir="ltr">Do a test here,</p>
<p dir="ltr">On compute1 </p>
<p dir="ltr">#su - nova <br>
#touch `hostname.dat`<br>
#scp -p `hostname.dat` compute2:/var/lib/nova/instances/</p>
<p dir="ltr">On compute2:</p>
<p dir="ltr">#su - nova <br>
#touch `hostname.dat`<br>
#scp -p `hostname.dat` compute1:/var/lib/nova/instances/<br><br></p>
<p dir="ltr">I don't remember exact username for nova user. </p>
<div class="gmail_quote">On 12 Oct 2015 19:43, "Remo Mattei" <<a href="mailto:remo@italy1.com">remo@italy1.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">To make this work just login as nova, create an ssh key copy that key over the compute and you should be fine. I would do ssh-copy-id from the nova to the other machines. <div><br></div><div>Repeat this as needed. (compute 1 to compute 2 etc)</div><div><br></div><div>Remo <br><div><blockquote type="cite"><div>On Oct 12, 2015, at 07:00, Nasir Mahmood <<a href="mailto:nasir.mahmood@gmail.com" target="_blank">nasir.mahmood@gmail.com</a>> wrote:</div><br><div><p dir="ltr" style="font-family:Helvetica;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">Varun,</p><p dir="ltr" style="font-family:Helvetica;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">Yes, it's key based authentication for nova user or in other words passwordless authentication based on ssh keys.. apologise for confusing lines</p><div class="gmail_quote" style="font-family:Helvetica;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">On 12 Oct 2015 18:20, "varun bhatnagar" <<a href="mailto:varun292006@gmail.com" target="_blank">varun292006@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">Hello Nasir,<div><br></div><div>Thanks for your reply.</div><div>When you say "<span style="font-size:12.8px">enable ssh Keys authentication for nova user between compute nodes" do you mean setting some parameter in nova.conf or do you mean setting public keys so that a user can ssh without using password?</span></div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">BR,</span></div><div><span style="font-size:12.8px">Varun</span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Oct 12, 2015 at 2:37 PM, Nasir Mahmood<span> </span><span dir="ltr"><<a href="mailto:nasir.mahmood@gmail.com" target="_blank">nasir.mahmood@gmail.com</a>></span><span> </span>wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">did you enable ssh Keys authentication for nova user between compute nodes?<div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Mon, Oct 12, 2015 at 5:25 PM, varun bhatnagar<span> </span><span dir="ltr"><<a href="mailto:varun292006@gmail.com" target="_blank">varun292006@gmail.com</a>></span><span> </span>wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div><div><div dir="ltr">Hi,<div><br></div><div>I have OpenStack Juno with multinode setup.</div><div>The instance storage is mounted over NFS and is shared between all the computes.</div><div>I am trying to migrate an instance but while doing so the instance runs into ERROR state by throwing the below error message:</div><div><b><br></b></div><div><b>Failed to launch instance "test_instance": Please try again later [Error: Unexpected error while running command. Command: ssh 192.168.151.104 mkdir -p /var/lib/nova/instances/328dc46e-8a1e-44ae-8450-6619b66203cd Exit code: 255 Stdout: u'' Stderr: u'Host key verification failed.\r\n']. </b><br></div><div><b><br></b></div><div>When I try to execute this command<span> </span><b>(mkdir -p /var/lib/nova/instances/328dc46e-8a1e-44ae-8450-6619b66203cd)<span> </span></b>it gets executed properly.</div><div><b><br></b></div><div>Can anyone please help in fixing this?</div><div><br></div><div>BR,</div><div>Varun</div></div><br></div></div>_______________________________________________<br>Mailing list:<span> </span><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" rel="noreferrer" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a><br>Post to :<span> </span><a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a><br>Unsubscribe :<span> </span><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack" rel="noreferrer" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a><br><br></blockquote></div><span><font color="#888888"><br><br clear="all"><div><br></div>--<span> </span><br><div>Nasir Mahmood<br></div></font></span></div></blockquote></div><br></div></blockquote></div><span style="font-family:Helvetica;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">!DSPAM:1,561bbfba118169940716644! 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