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<p class="MsoNormal"><span style="color:#1F3864">Hi ,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">I am planning to use Corosync Qdevice version 3.0.0 with corosync version 2.4.4 and pacemaker 1.1.16 in a two node cluster.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">I want to know if failback can be avoided in the below situation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="color:#1F3864;margin-left:0in;mso-list:l0 level1 lfo2">
The pcs cluster is in split brain scenario after a network break between two nodes. But both nodes are visible and reachable from qdevice node.<o:p></o:p></li><li class="MsoListParagraph" style="color:#1F3864;margin-left:0in;mso-list:l0 level1 lfo2">
The qdevice with ffsplit algorithm selects node with id 1 (lowest node id) and node 1 becomes quorate.
<o:p></o:p></li><li class="MsoListParagraph" style="color:#1F3864;margin-left:0in;mso-list:l0 level1 lfo2">
Now if node 1 goes down/is not reachable from qdevice node , the node 2 becomes quorate.
<o:p></o:p></li></ol>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">But when node 1 becomes again reachable from qdevice , it becomes quorate and node 2 again goes down. i.e The resources failback to node 1.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">Is there any way to prevent this failback.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#2F5496"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">With Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F3864">Somanath Thilak J<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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