<div dir="ltr"><span style="font-size:13px">Thanks for the advice, i've run the command in NetworkNode and in a ComputeNode and lost is 0, but missed is a high value.</span><div style="font-size:13px"><br></div><div style="font-size:13px">NetworkNode</div><div style="font-size:13px"><div>system@ovs-system:</div><div><span style="white-space:pre-wrap"> </span>lookups: hit:425667155 missed:2962922 lost:0</div><div><span style="white-space:pre-wrap"> </span>flows: 27</div><div><span style="white-space:pre-wrap"> </span>port 0: ovs-system (internal)</div><div><span style="white-space:pre-wrap"> </span>port 1: br-ex (internal)</div><div><span style="white-space:pre-wrap"> </span>port 2: br-tun (internal)</div><div><span style="white-space:pre-wrap"> </span>port 3: eth1</div><div><span style="white-space:pre-wrap"> </span>port 4: br-int (internal)</div><div><span style="white-space:pre-wrap"> </span>port 5: tapbdc3d959-d8 (internal)</div><div><span style="white-space:pre-wrap"> </span>port 6: gre_system (gre: df_default=false, ttl=0)</div><div><span style="white-space:pre-wrap"> </span>port 7: qr-4063db49-6b (internal)</div><div><span style="white-space:pre-wrap"> </span>port 8: qg-e427e527-92 (internal)</div></div><div style="font-size:13px"><br></div><div style="font-size:13px"><br></div><div style="font-size:13px">ComputeNode</div><div style="font-size:13px"><div>system@ovs-system:</div><div><span style="white-space:pre-wrap"> </span>lookups: hit:28660666 missed:200922 lost:0</div><div><span style="white-space:pre-wrap"> </span>flows: 19</div><div><span style="white-space:pre-wrap"> </span>port 0: ovs-system (internal)</div><div><span style="white-space:pre-wrap"> </span>port 1: br-int (internal)</div><div><span style="white-space:pre-wrap"> </span>port 2: br-tun (internal)</div><div><span style="white-space:pre-wrap"> </span>port 3: gre_system (gre: df_default=false, ttl=0)</div><div><span style="white-space:pre-wrap"> </span>port 4: em1</div><div><span style="white-space:pre-wrap"> </span>port 5: br-private (internal)</div><div><span style="white-space:pre-wrap"> </span>port 6: qvo9a959049-a0</div><div><span style="white-space:pre-wrap"> </span>port 7: qvodd0ef077-e1</div><div><span style="white-space:pre-wrap"> </span>port 8: qvoac2b566b-65</div><div><span style="white-space:pre-wrap"> </span>port 9: qvo9e4ab149-5c</div><div><span style="white-space:pre-wrap"> </span>port 10: qvoc2d2625c-0c</div><div><span style="white-space:pre-wrap"> </span>port 11: qvo3069daeb-4a</div><div><span style="white-space:pre-wrap"> </span>port 12: qvo7f82a3cf-0c</div><div><span style="white-space:pre-wrap"> </span>port 13: qvo83b77d2d-1a</div><div><span style="white-space:pre-wrap"> </span>port 14: qvobbadd8c2-30</div><div><span style="white-space:pre-wrap"> </span>port 15: qvocfd0b8e8-ad</div><div><span style="white-space:pre-wrap"> </span>port 16: qvo714fab88-60</div><div><span style="white-space:pre-wrap"> </span>port 17: qvob9ddde49-86</div><div><span style="white-space:pre-wrap"> </span>port 18: qvo42ef9f3b-ac</div><div><span style="white-space:pre-wrap"> </span>port 19: qvof4ae7868-41</div><div><span style="white-space:pre-wrap"> </span>port 20: qvoa4408a18-03</div><div><span style="white-space:pre-wrap"> </span>port 22: qvo36c64d52-9b</div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 11 December 2014 at 06:17, mad Engineer <span dir="ltr"><<a href="mailto:themadengin33r@gmail.com" target="_blank">themadengin33r@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">sorry its 2.3.0 not 2.1.3<br>
<div class="HOEnZb"><div class="h5"><br>
On Thu, Dec 11, 2014 at 2:43 PM, mad Engineer <<a href="mailto:themadengin33r@gmail.com">themadengin33r@gmail.com</a>> wrote:<br>
> Not in openstack,i had performance issue, with OVS and bursty traffic<br>
> upgrading to later version improved the performance.A lot of<br>
> performance features have been added in 2.1.3.<br>
><br>
> Do you have lots of lost: value in<br>
> ovs-dpctl show<br>
><br>
><br>
> On Thu, Dec 11, 2014 at 2:33 AM, André Aranha <<a href="mailto:andre.f.aranha@gmail.com">andre.f.aranha@gmail.com</a>> wrote:<br>
>> Yes, we are using version 2.0.2.<br>
>> The process uses only about 0.3% on network node and compute node.<br>
>> Did you have the same issue?<br>
>><br>
>> On 10 December 2014 at 14:31, mad Engineer <<a href="mailto:themadengin33r@gmail.com">themadengin33r@gmail.com</a>> wrote:<br>
>>><br>
>>> are you using openvswitch? which version?<br>
>>> if yes,is it consuming a lot of CPU?<br>
>>><br>
>>> On Wed, Dec 10, 2014 at 7:45 PM, André Aranha <<a href="mailto:andre.f.aranha@gmail.com">andre.f.aranha@gmail.com</a>><br>
>>> wrote:<br>
>>> > Well, here we are using de Icehouse with Ubuntu 14.04 LTS<br>
>>> ><br>
>>> > We found this thread in the community and we apply the changes in the<br>
>>> > compute nodes (change VHOST_NET_ENABLED to 1 in /etc/default/qemu-kvm).<br>
>>> > After do this, a few instances the problem doesn't exists anymore. This<br>
>>> > link<br>
>>> > show an investigation to find the problem.<br>
>>> ><br>
>>> > About the MTU in our cloud (using iperf),<br>
>>> ><br>
>>> > 1-from any the Desktop to the Network Node<br>
>>> > MSS size 1448 bytes (MTU 1500 bytes, ethernet)<br>
>>> ><br>
>>> > 2-from any Desktop to the instance<br>
>>> > MSS size 1348 bytes (MTU 1388 bytes, unknown interface)<br>
>>> ><br>
>>> > 3- from any instance to the Network Node<br>
>>> > MSS size 1348 bytes (MTU 1388 bytes, unknown interface)<br>
>>> ><br>
>>> > 4- from any instance to the Desktop<br>
>>> > MSS size 1348 bytes (MTU 1388 bytes, unknown interface)<br>
>>> ><br>
>>> > 5-from Network Node to any ComputeNode<br>
>>> > MSS size 1448 bytes (MTU 1500 bytes, ethernet)<br>
>>> ><br>
>>> > 6-from any ComputeNode to NetworkNode<br>
>>> > MSS size 1448 bytes (MTU 1500 bytes, ethernet)<br>
>>> ><br>
>>> > On 10 December 2014 at 10:31, somshekar kadam <<a href="mailto:som_kadam@yahoo.co.in">som_kadam@yahoo.co.in</a>><br>
>>> > wrote:<br>
>>> >><br>
>>> >> Sorry for wrong post mail chain.<br>
>>> >><br>
>>> >><br>
>>> >> Regards<br>
>>> >> Neelu<br>
>>> >><br>
>>> >><br>
>>> >> On Wednesday, 10 December 2014 6:59 PM, somshekar kadam<br>
>>> >> <<a href="mailto:som_kadam@yahoo.co.in">som_kadam@yahoo.co.in</a>> wrote:<br>
>>> >><br>
>>> >><br>
>>> >> Hi All,<br>
>>> >><br>
>>> >> Please recommend which stable Host OS to use for Controller and Compute<br>
>>> >> node.<br>
>>> >> I have tried Fedora20 seems lot of tweaking is required, corerct me If<br>
>>> >> I<br>
>>> >> am wrong.<br>
>>> >> I see that most of it is tested on ubuntu and centos.<br>
>>> >> I am planning to use JUNO stable version.<br>
>>> >> Please help on this<br>
>>> >><br>
>>> >><br>
>>> >> Regards<br>
>>> >> Neelu<br>
>>> >><br>
>>> >><br>
>>> >> On Wednesday, 10 December 2014 5:42 PM, Hannah Fordham<br>
>>> >> <<a href="mailto:hfordham@radiantworlds.com">hfordham@radiantworlds.com</a>> wrote:<br>
>>> >><br>
>>> >><br>
>>> >> I'm afraid we didn't, we're still struggling with some VMs with this<br>
>>> >> problem. Sorry!<br>
>>> >><br>
>>> >> On 9 December 2014 14:09:32 GMT+00:00, "André Aranha"<br>
>>> >> <<a href="mailto:andre.f.aranha@gmail.com">andre.f.aranha@gmail.com</a>> wrote:<br>
>>> >><br>
>>> >> Hi,<br>
>>> >><br>
>>> >> We are with the same issue here, and already try some solutions that<br>
>>> >> didn't work at all. Did you solved this problem?<br>
>>> >><br>
>>> >> Thank you,<br>
>>> >> Andre Aranha<br>
>>> >><br>
>>> >> On 27 August 2014 at 08:17, Hannah Fordham <<a href="mailto:hfordham@radiantworlds.com">hfordham@radiantworlds.com</a>><br>
>>> >> wrote:<br>
>>> >><br>
>>> >> I’ve been trying to figure this one out for a while, so I’ll try and be<br>
>>> >> as<br>
>>> >> thorough as possible in this post but apologies if I miss anything<br>
>>> >> pertinent<br>
>>> >> out.<br>
>>> >><br>
>>> >> First off, I’m running a set up with one control node and 5 compute<br>
>>> >> nodes,<br>
>>> >> all created using the Stackgeek scripts -<br>
>>> >> <a href="http://www.stackgeek.com/guides/gettingstarted.html" target="_blank">http://www.stackgeek.com/guides/gettingstarted.html</a>. The first two<br>
>>> >> (compute1<br>
>>> >> and compute 2) were created at the same time, compute3, 4 and 5 were<br>
>>> >> added<br>
>>> >> as needed later. My VMs are predominantly CentOS, while my Openstack<br>
>>> >> nodes<br>
>>> >> are Ubuntu 14.04.1<br>
>>> >><br>
>>> >> The symptom: irregular high latency/packet loss to VMs on all compute<br>
>>> >> boxes except compute3. Mostly a pain when trying to do anything via ssh<br>
>>> >> on a<br>
>>> >> VM because the lag makes it difficult to do anything, but it shows<br>
>>> >> itself<br>
>>> >> quite nicely through pings as well:<br>
>>> >> --- 10.0.102.47 ping statistics ---<br>
>>> >> 111 packets transmitted, 103 received, 7% packet loss, time 110024ms<br>
>>> >> rtt min/avg/max/mdev = 0.096/367.220/5593.100/1146.920 ms, pipe 6<br>
>>> >><br>
>>> >><br>
>>> >> I have tested these pings:<br>
>>> >> VM to itself (via its external IP) seems fine<br>
>>> >> VM to another VM is not fine<br>
>>> >> Hosting compute node to VM is not fine<br>
>>> >> My PC to VM is not fine (however the other way round works fine)<br>
>>> >><br>
>>> >><br>
>>> >> Top on a (32 core) compute node with laggy VMs:<br>
>>> >> top - 12:09:20 up 33 days, 21:35, 1 user, load average: 2.37, 4.95,<br>
>>> >> 6.23<br>
>>> >> Tasks: 431 total, 2 running, 429 sleeping, 0 stopped, 0 zombie<br>
>>> >> %Cpu(s): 0.6 us, 3.4 sy, 0.0 ni, 96.0 id, 0.0 wa, 0.0 hi, 0.0 si,<br>
>>> >> 0.0 st<br>
>>> >> KiB Mem: 65928256 total, 44210348 used, 21717908 free, 341172<br>
>>> >> buffers<br>
>>> >> KiB Swap: 7812092 total, 1887864 used, 5924228 free. 7134740 cached<br>
>>> >> Mem<br>
>>> >><br>
>>> >> And for comparison, on the one compute node that doesn’t seem to be<br>
>>> >> suffering from this:<br>
>>> >> top - 12:12:20 up 33 days, 21:38, 1 user, load average: 0.28, 0.18,<br>
>>> >> 0.15<br>
>>> >> Tasks: 399 total, 3 running, 396 sleeping, 0 stopped, 0 zombie<br>
>>> >> %Cpu(s): 0.3 us, 0.1 sy, 0.0 ni, 98.9 id, 0.6 wa, 0.0 hi, 0.0 si,<br>
>>> >> 0.0 st<br>
>>> >> KiB Mem: 65928256 total, 49986064 used, 15942192 free, 335788<br>
>>> >> buffers<br>
>>> >> KiB Swap: 7812092 total, 919392 used, 6892700 free. 39272312 cached<br>
>>> >> Mem<br>
>>> >><br>
>>> >> Top on a laggy VM:<br>
>>> >> top - 11:02:53 up 27 days, 33 min, 3 users, load average: 0.00, 0.00,<br>
>>> >> 0.00<br>
>>> >> Tasks: 91 total, 1 running, 90 sleeping, 0 stopped, 0 zombie<br>
>>> >> Cpu(s): 0.2%us, 0.1%sy, 0.0%ni, 99.5%id, 0.1%wa, 0.0%hi, 0.0%si,<br>
>>> >> 0.0%st<br>
>>> >> Mem: 1020400k total, 881004k used, 139396k free, 162632k<br>
>>> >> buffers<br>
>>> >> Swap: 1835000k total, 14984k used, 1820016k free, 220644k cached<br>
>>> >><br>
>>> >> <a href="http://imgur.com/blULjDa" target="_blank">http://imgur.com/blULjDa</a> shows the hypervisor panel of Horizon. As you<br>
>>> >> can<br>
>>> >> see, Compute 3 has fewer resources used, but none of the compute nodes<br>
>>> >> should be anywhere near overloaded from what I can tell.<br>
>>> >><br>
>>> >> Any ideas? Let me know if I’m missing anything obvious that would help<br>
>>> >> with figuring this out!<br>
>>> >><br>
>>> >> Hannah<br>
>>> >><br>
>>> >><br>
>>> >><br>
>>> >><br>
>>> >><br>
>>> >><br>
>>> >> ***********<br>
>>> >><br>
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>>> >><br>
>>> >><br>
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>>> >><br>
>>> >><br>
>>> ><br>
>>> ><br>
>>> > _______________________________________________<br>
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>>> ><br>
>><br>
>><br>
</div></div></blockquote></div><br></div>