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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Sorry – I also meant to say that the resolution went off the mailing list and was continued in LU-8397. You can find the patch there.
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Darby Vicker <darby.vicker-1@nasa.gov><br>
<b>Date: </b>Wednesday, October 25, 2017 at 1:17 PM<br>
<b>To: </b>"Mannthey, Keith" <keith.mannthey@intel.com>, Ravi Konila <ravibhatk@gmail.com>, Lustre Discuss <lustre-discuss@lists.lustre.org><br>
<b>Subject: </b>Re: [lustre-discuss] MGS is not working in HA<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Which version of lustre are you using? We initially has problem with this too when using failover with lustre 2.8 and 2.9. We got a patch that fixed it and recent versions
work fine for us. We have a combined MGS/MDS so our scenario is a little different but this sounds very similar to our issue.
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><a href="http://lists.lustre.org/pipermail/lustre-discuss-lustre.org/2017-January/014125.html">http://lists.lustre.org/pipermail/lustre-discuss-lustre.org/2017-January/014125.html</a></span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of "Mannthey, Keith" <keith.mannthey@intel.com><br>
<b>Date: </b>Wednesday, October 25, 2017 at 11:30 AM<br>
<b>To: </b>Ravi Konila <ravibhatk@gmail.com>, Lustre Discuss <lustre-discuss@lists.lustre.org><br>
<b>Subject: </b>Re: [lustre-discuss] MGS is not working in HA</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Kavi,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> You may want to open a jira ticket with this error. It looks like the mount command is only trying only the first nid of the mount command.
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<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">Jira is
<a href="https://jira.hpdd.intel.com">https://jira.hpdd.intel.com</a> “LU” project.</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">I have seen Lustre Servers first mount behave like this but not client mounts. It should try the first server, timeout and try the 2<sup>nd</sup> server. </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">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Keith
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<p class="MsoNormal"><a name="_____replyseparator"></a><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"> lustre-discuss [mailto:lustre-discuss-bounces@lists.lustre.org]
<b>On Behalf Of </b>Ravi Konila<br>
<b>Sent:</b> Wednesday, October 25, 2017 5:07 AM<br>
<b>To:</b> Lustre Discuss <lustre-discuss@lists.lustre.org><br>
<b>Subject:</b> [lustre-discuss] MGS is not working in HA</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">Hi
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">I have two servers for MGS/MDS and have configured it pacemaker for HA.
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">The command which I gave on first MGS/MDS mds01 is</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">mkfs.lustre --mgs --failnode
<a href="mailto:192.168.0.51@o2ib">192.168.0.51@o2ib</a> --backfstype=ldiskfs /dev/mapper/mpathd</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">Next I created lustre filesystem for MDT</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">mkfs.lustre --mdt --fsname lhome --index 0 --mgsnode
<a href="mailto:192.168.0.50@o2ib">192.168.0.50@o2ib</a> --mgsnode <a href="mailto:192.168.0.51@o2ib">
192.168.0.51@o2ib</a> --servicenode <a href="mailto:192.168.0.50@o2ib">192.168.0.50@o2ib</a> --servicenode
<a href="mailto:192.168.0.51@o2ib">192.168.0.51@o2ib</a> --backfstype=ldiskfs /dev/mapper/mpathb</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">Now, in my client, If I give</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">mount –t lustre
<a href="mailto:192.168.0.50@o2ib:192.168.0.51@o2ib:/lhome">192.168.0.50@o2ib:192.168.0.51@o2ib:/lhome</a> /home, it does not work and asks if MGS is running.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">But if I give mount –t lustre
<a href="mailto:192.168.0.50@o2ib:/lhome">192.168.0.50@o2ib:/lhome</a> /home it works fine.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">Also when my first MDS (mds01) is down, my client is not mounting lustre from 2nd MGS.
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">It says check if MGS is running?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">Any help will be highly appreciated.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">Regards</span><o:p></o:p></p>
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<p class="MsoNormal"><strong><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">Ravi Konila</span></strong><o:p></o:p></p>
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