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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Can you check dmesg –T to see at least if the messages are not too old?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Are you using port2 as a connection to VM?<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"><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"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:gray">Lenny Verkhovsky<o:p></o:p></span></b></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"><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"> Eduard Matei [mailto:eduard.matei@cloudfounders.com]
<br>
<b>Sent:</b> Wednesday, June 10, 2015 10:34 AM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> [openstack-dev] ThirdPartyCI: Tempest job fails with "Unexpected termination of the channel"<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Short story:<o:p></o:p></p>
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<p class="MsoNormal">- all runs of the tempest job are failing after ~ 1,5 - 2 hrs with "<span style="font-size:10.0pt;color:#333333">FATAL: java.io.IOException: Unexpected termination of the channel" and jenkins logs "</span><span style="color:#333333">SEVERE:
I/O error in channel d-p-c-local_01-1655 java.io.IOException: Unexpected termination of the channel"</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:#333333">Long story:</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333">- Host is 4 core Intel Xeon, 32GB RAM, 3x1TB HDD</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333">-- devstack is 2015.1.1, networking is done via n-net
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333">- Jenkins master is a VM, 2 core, 8 GB RAM, 500 GB disk</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333">-- not managed through devstack, but using virsh, networking done manually via iptables</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333">- test slaves are VMs, m1.large (4 VCPU, 8 GB RAM, trusty), managed by nodepool</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:#333333">Load on master is usually around 6-7, memory usage around 90%, little swapping.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:#333333">I tried increasing ClientAliveInterval/ServerAliveInterval and ClientAliveCountMax/ServerAliveCountMax on both the Jenkins VM and on the test vm (using the job to configure), but it still fails with the above
mentioned error.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:#333333">On the host, dmesg is full of: (not sure if directly related to this)</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333">[1037245.231196] br100: port 2(vnet1) entered disabled state
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333">followed by </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;color:#333333">[1037259.147672] br100: port 2(vnet1) entered forwarding state<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;color:#333333"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;color:#333333">I think it might be something related to networking on the host itself but i couldn't figure it yet.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;color:#333333"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;color:#333333">Any suggestion on what to try next?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#333333"><o:p> </o:p></span></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
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<p class="MsoNormal">Eduard<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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