Our compute nodes are using vhost_net, we haven't made any changes to buffer our NIC. The system is not over loaded, cpu usage aren't higher than 30%
On 12 December 2014 at 02:35, mad Engineer <themadengin...@gmail.com> wrote: > > so looks like its not the issue with openvswitch,missed is quite > normal,it is not the reason for packet loss > is your guests using vhost_net? > do > ps aux|grep vhost > also have you made any changes to buffer size of your NIC? > is the system over loaded what is the cpu usage > > On Thu, Dec 11, 2014 at 6:20 PM, André Aranha <andre.f.ara...@gmail.com> > wrote: > > 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. > > > > NetworkNode > > system@ovs-system: > > lookups: hit:425667155 missed:2962922 lost:0 > > flows: 27 > > port 0: ovs-system (internal) > > port 1: br-ex (internal) > > port 2: br-tun (internal) > > port 3: eth1 > > port 4: br-int (internal) > > port 5: tapbdc3d959-d8 (internal) > > port 6: gre_system (gre: df_default=false, ttl=0) > > port 7: qr-4063db49-6b (internal) > > port 8: qg-e427e527-92 (internal) > > > > > > ComputeNode > > system@ovs-system: > > lookups: hit:28660666 missed:200922 lost:0 > > flows: 19 > > port 0: ovs-system (internal) > > port 1: br-int (internal) > > port 2: br-tun (internal) > > port 3: gre_system (gre: df_default=false, ttl=0) > > port 4: em1 > > port 5: br-private (internal) > > port 6: qvo9a959049-a0 > > port 7: qvodd0ef077-e1 > > port 8: qvoac2b566b-65 > > port 9: qvo9e4ab149-5c > > port 10: qvoc2d2625c-0c > > port 11: qvo3069daeb-4a > > port 12: qvo7f82a3cf-0c > > port 13: qvo83b77d2d-1a > > port 14: qvobbadd8c2-30 > > port 15: qvocfd0b8e8-ad > > port 16: qvo714fab88-60 > > port 17: qvob9ddde49-86 > > port 18: qvo42ef9f3b-ac > > port 19: qvof4ae7868-41 > > port 20: qvoa4408a18-03 > > port 22: qvo36c64d52-9b > > > > On 11 December 2014 at 06:17, mad Engineer <themadengin...@gmail.com> > wrote: > >> > >> sorry its 2.3.0 not 2.1.3 > >> > >> On Thu, Dec 11, 2014 at 2:43 PM, mad Engineer <themadengin...@gmail.com > > > >> wrote: > >> > Not in openstack,i had performance issue, with OVS and bursty traffic > >> > upgrading to later version improved the performance.A lot of > >> > performance features have been added in 2.1.3. > >> > > >> > Do you have lots of lost: value in > >> > ovs-dpctl show > >> > > >> > > >> > On Thu, Dec 11, 2014 at 2:33 AM, André Aranha < > andre.f.ara...@gmail.com> > >> > wrote: > >> >> Yes, we are using version 2.0.2. > >> >> The process uses only about 0.3% on network node and compute node. > >> >> Did you have the same issue? > >> >> > >> >> On 10 December 2014 at 14:31, mad Engineer <themadengin...@gmail.com > > > >> >> wrote: > >> >>> > >> >>> are you using openvswitch? which version? > >> >>> if yes,is it consuming a lot of CPU? > >> >>> > >> >>> On Wed, Dec 10, 2014 at 7:45 PM, André Aranha > >> >>> <andre.f.ara...@gmail.com> > >> >>> wrote: > >> >>> > Well, here we are using de Icehouse with Ubuntu 14.04 LTS > >> >>> > > >> >>> > We found this thread in the community and we apply the changes in > >> >>> > the > >> >>> > compute nodes (change VHOST_NET_ENABLED to 1 in > >> >>> > /etc/default/qemu-kvm). > >> >>> > After do this, a few instances the problem doesn't exists anymore. > >> >>> > This > >> >>> > link > >> >>> > show an investigation to find the problem. > >> >>> > > >> >>> > About the MTU in our cloud (using iperf), > >> >>> > > >> >>> > 1-from any the Desktop to the Network Node > >> >>> > MSS size 1448 bytes (MTU 1500 bytes, ethernet) > >> >>> > > >> >>> > 2-from any Desktop to the instance > >> >>> > MSS size 1348 bytes (MTU 1388 bytes, unknown interface) > >> >>> > > >> >>> > 3- from any instance to the Network Node > >> >>> > MSS size 1348 bytes (MTU 1388 bytes, unknown interface) > >> >>> > > >> >>> > 4- from any instance to the Desktop > >> >>> > MSS size 1348 bytes (MTU 1388 bytes, unknown interface) > >> >>> > > >> >>> > 5-from Network Node to any ComputeNode > >> >>> > MSS size 1448 bytes (MTU 1500 bytes, ethernet) > >> >>> > > >> >>> > 6-from any ComputeNode to NetworkNode > >> >>> > MSS size 1448 bytes (MTU 1500 bytes, ethernet) > >> >>> > > >> >>> > On 10 December 2014 at 10:31, somshekar kadam > >> >>> > <som_ka...@yahoo.co.in> > >> >>> > wrote: > >> >>> >> > >> >>> >> Sorry for wrong post mail chain. > >> >>> >> > >> >>> >> > >> >>> >> Regards > >> >>> >> Neelu > >> >>> >> > >> >>> >> > >> >>> >> On Wednesday, 10 December 2014 6:59 PM, somshekar kadam > >> >>> >> <som_ka...@yahoo.co.in> wrote: > >> >>> >> > >> >>> >> > >> >>> >> Hi All, > >> >>> >> > >> >>> >> Please recommend which stable Host OS to use for Controller and > >> >>> >> Compute > >> >>> >> node. > >> >>> >> I have tried Fedora20 seems lot of tweaking is required, corerct > me > >> >>> >> If > >> >>> >> I > >> >>> >> am wrong. > >> >>> >> I see that most of it is tested on ubuntu and centos. > >> >>> >> I am planning to use JUNO stable version. > >> >>> >> Please help on this > >> >>> >> > >> >>> >> > >> >>> >> Regards > >> >>> >> Neelu > >> >>> >> > >> >>> >> > >> >>> >> On Wednesday, 10 December 2014 5:42 PM, Hannah Fordham > >> >>> >> <hford...@radiantworlds.com> wrote: > >> >>> >> > >> >>> >> > >> >>> >> I'm afraid we didn't, we're still struggling with some VMs with > >> >>> >> this > >> >>> >> problem. Sorry! > >> >>> >> > >> >>> >> On 9 December 2014 14:09:32 GMT+00:00, "André Aranha" > >> >>> >> <andre.f.ara...@gmail.com> wrote: > >> >>> >> > >> >>> >> Hi, > >> >>> >> > >> >>> >> We are with the same issue here, and already try some solutions > >> >>> >> that > >> >>> >> didn't work at all. Did you solved this problem? > >> >>> >> > >> >>> >> Thank you, > >> >>> >> Andre Aranha > >> >>> >> > >> >>> >> On 27 August 2014 at 08:17, Hannah Fordham > >> >>> >> <hford...@radiantworlds.com> > >> >>> >> wrote: > >> >>> >> > >> >>> >> I’ve been trying to figure this one out for a while, so I’ll try > >> >>> >> and be > >> >>> >> as > >> >>> >> thorough as possible in this post but apologies if I miss > anything > >> >>> >> pertinent > >> >>> >> out. > >> >>> >> > >> >>> >> First off, I’m running a set up with one control node and 5 > compute > >> >>> >> nodes, > >> >>> >> all created using the Stackgeek scripts - > >> >>> >> http://www.stackgeek.com/guides/gettingstarted.html. The first > two > >> >>> >> (compute1 > >> >>> >> and compute 2) were created at the same time, compute3, 4 and 5 > >> >>> >> were > >> >>> >> added > >> >>> >> as needed later. My VMs are predominantly CentOS, while my > >> >>> >> Openstack > >> >>> >> nodes > >> >>> >> are Ubuntu 14.04.1 > >> >>> >> > >> >>> >> The symptom: irregular high latency/packet loss to VMs on all > >> >>> >> compute > >> >>> >> boxes except compute3. Mostly a pain when trying to do anything > via > >> >>> >> ssh > >> >>> >> on a > >> >>> >> VM because the lag makes it difficult to do anything, but it > shows > >> >>> >> itself > >> >>> >> quite nicely through pings as well: > >> >>> >> --- 10.0.102.47 ping statistics --- > >> >>> >> 111 packets transmitted, 103 received, 7% packet loss, time > >> >>> >> 110024ms > >> >>> >> rtt min/avg/max/mdev = 0.096/367.220/5593.100/1146.920 ms, pipe 6 > >> >>> >> > >> >>> >> > >> >>> >> I have tested these pings: > >> >>> >> VM to itself (via its external IP) seems fine > >> >>> >> VM to another VM is not fine > >> >>> >> Hosting compute node to VM is not fine > >> >>> >> My PC to VM is not fine (however the other way round works fine) > >> >>> >> > >> >>> >> > >> >>> >> Top on a (32 core) compute node with laggy VMs: > >> >>> >> top - 12:09:20 up 33 days, 21:35, 1 user, load average: 2.37, > >> >>> >> 4.95, > >> >>> >> 6.23 > >> >>> >> Tasks: 431 total, 2 running, 429 sleeping, 0 stopped, 0 > >> >>> >> zombie > >> >>> >> %Cpu(s): 0.6 us, 3.4 sy, 0.0 ni, 96.0 id, 0.0 wa, 0.0 hi, > 0.0 > >> >>> >> si, > >> >>> >> 0.0 st > >> >>> >> KiB Mem: 65928256 total, 44210348 used, 21717908 free, 341172 > >> >>> >> buffers > >> >>> >> KiB Swap: 7812092 total, 1887864 used, 5924228 free. 7134740 > >> >>> >> cached > >> >>> >> Mem > >> >>> >> > >> >>> >> And for comparison, on the one compute node that doesn’t seem to > be > >> >>> >> suffering from this: > >> >>> >> top - 12:12:20 up 33 days, 21:38, 1 user, load average: 0.28, > >> >>> >> 0.18, > >> >>> >> 0.15 > >> >>> >> Tasks: 399 total, 3 running, 396 sleeping, 0 stopped, 0 > >> >>> >> zombie > >> >>> >> %Cpu(s): 0.3 us, 0.1 sy, 0.0 ni, 98.9 id, 0.6 wa, 0.0 hi, > 0.0 > >> >>> >> si, > >> >>> >> 0.0 st > >> >>> >> KiB Mem: 65928256 total, 49986064 used, 15942192 free, 335788 > >> >>> >> buffers > >> >>> >> KiB Swap: 7812092 total, 919392 used, 6892700 free. 39272312 > >> >>> >> cached > >> >>> >> Mem > >> >>> >> > >> >>> >> Top on a laggy VM: > >> >>> >> top - 11:02:53 up 27 days, 33 min, 3 users, load average: 0.00, > >> >>> >> 0.00, > >> >>> >> 0.00 > >> >>> >> Tasks: 91 total, 1 running, 90 sleeping, 0 stopped, 0 > >> >>> >> zombie > >> >>> >> Cpu(s): 0.2%us, 0.1%sy, 0.0%ni, 99.5%id, 0.1%wa, 0.0%hi, > >> >>> >> 0.0%si, > >> >>> >> 0.0%st > >> >>> >> Mem: 1020400k total, 881004k used, 139396k free, 162632k > >> >>> >> buffers > >> >>> >> Swap: 1835000k total, 14984k used, 1820016k free, 220644k > >> >>> >> cached > >> >>> >> > >> >>> >> http://imgur.com/blULjDa shows the hypervisor panel of Horizon. > As > >> >>> >> you > >> >>> >> can > >> >>> >> see, Compute 3 has fewer resources used, but none of the compute > >> >>> >> nodes > >> >>> >> should be anywhere near overloaded from what I can tell. > >> >>> >> > >> >>> >> Any ideas? Let me know if I’m missing anything obvious that would > >> >>> >> help > >> >>> >> with figuring this out! > >> >>> >> > >> >>> >> Hannah > >> >>> >> > >> >>> >> > >> >>> >> > >> >>> >> > >> >>> >> > >> >>> >> > >> >>> >> *********** > >> >>> >> > >> >>> >> Radiant Worlds Limited is registered in England (company no: > >> >>> >> 07822337). > >> >>> >> This message is intended solely for the addressee and may contain > >> >>> >> confidential information. If you have received this message in > >> >>> >> error > >> >>> >> please > >> >>> >> send it back to us and immediately and permanently delete it from > >> >>> >> your > >> >>> >> system. Do not use, copy or disclose the information contained in > >> >>> >> this > >> >>> >> message or in any attachment. Please also note that transmission > >> >>> >> cannot > >> >>> >> be > >> >>> >> guaranteed to be secure or error-free. > >> >>> >> > >> >>> >> _______________________________________________ > >> >>> >> Mailing list: > >> >>> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> >> Post to : openstack@lists.openstack.org > >> >>> >> Unsubscribe : > >> >>> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> >> > >> >>> >> > >> >>> >> > >> >>> >> -- > >> >>> >> Sent from my Android device with K-9 Mail. Please excuse my > >> >>> >> brevity. > >> >>> >> > >> >>> >> > >> >>> >> *********** > >> >>> >> > >> >>> >> Radiant Worlds Limited is registered in England (company no: > >> >>> >> 07822337). > >> >>> >> This message is intended solely for the addressee and may contain > >> >>> >> confidential information. 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Please also note that transmission > >> >>> >> cannot > >> >>> >> be > >> >>> >> guaranteed to be secure or error-free. > >> >>> >> > >> >>> >> _______________________________________________ > >> >>> >> Mailing list: > >> >>> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> >> Post to : openstack@lists.openstack.org > >> >>> >> Unsubscribe : > >> >>> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> >> > >> >>> >> > >> >>> >> > >> >>> >> _______________________________________________ > >> >>> >> Mailing list: > >> >>> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> >> Post to : openstack@lists.openstack.org > >> >>> >> Unsubscribe : > >> >>> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> >> > >> >>> >> > >> >>> > > >> >>> > > >> >>> > _______________________________________________ > >> >>> > Mailing list: > >> >>> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> > Post to : openstack@lists.openstack.org > >> >>> > Unsubscribe : > >> >>> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> >>> > > >> >> > >> >> > > > > >
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