Open Stack

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 <themadengin33r at 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.aranha at 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_kadam at yahoo.co.in>
> wrote:
> >>
> >> Sorry for wrong post mail chain.
> >>
> >>
> >> Regards
> >> Neelu
> >>
> >>
> >> On Wednesday, 10 December 2014 6:59 PM, somshekar kadam
> >> <som_kadam at 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
> >> <hfordham at 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.aranha at 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 <hfordham at 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
> >>
> >>
> >>
> >>
> >>
> >>
> >> ***********
> >>
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