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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:DE-AT">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:DE-AT"> pve-user-bounces@pve.proxmox.com
[mailto:pve-user-bounces@pve.proxmox.com] <b>On Behalf Of </b>Steve Weber<br>
<b>Sent:</b> Mittwoch, 06. Februar 2013 14:43<br>
<b>To:</b> pve-user@pve.proxmox.com<br>
<b>Subject:</b> [PVE-User] Nodes lose connection to master<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="DE">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">we have a cluster of three nodes:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> mox-110 (slave)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> mox-114 (master)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> mox-118 (slave)<o:p></o:p></span></p>
<p class="MsoNormal"><b><i><span lang="EN-US" style="color:#1F497D">[Martin Maurer]
<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span lang="EN-US" style="color:#1F497D">There are no master and slaves in Proxmox VE 2.x.<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Yesterday morning all three nodes shown in syslog: “crit: cpg_send_message failed: 9”.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">After opening the WebGUI of one node after the other, only the active node was shown<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">as online the others were shown as offline.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">At evening I restarted the master and the error disappeared in his log.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">At the slaves the syslog entry “crit: cpg_send_message failed: 9” was visible again.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But the master recognized changes at the pve-worker processes.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-US" style="font-family:Wingdings"><span style="mso-list:Ignore">è<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">I restarted the slaves and everything went back to normal.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The problem resulted in my opinion by a malfunction of the pve-cluster service.<o:p></o:p></span></p>
<p class="MsoNormal"><b><i><span lang="EN-US" style="color:#1F497D">[Martin Maurer]
<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span lang="EN-US" style="color:#1F497D">I assume it’s a network communication problem. Any firewall on your hosts? Is IP multicast supported in your network environment?<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span lang="EN-US" style="color:#1F497D">Martin</span></i></b><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is there any way to prevent this from happening again?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Greetings<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Steve<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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