Have you tried configuring your compute nodes with the following options in file 'nova.conf'?
These options could be improve your instance performance: libvirt_cpu_mode = host-passthrough libvirt_use_virtio_for_bridges = True PD: I suppose you are using: libvirt_type = kvm compute_driver = libvirt.LibvirtDriver --- JuanFra 2013/5/28 Rahul Sharma <rahulsharma...@gmail.com> > I checked, they are fine. nslookup is giving correct result. > > root@instance1:/home/ubuntu# nslookup www.google.com > Server: 192.168.0.4 > Address: 192.168.0.4#53 > > Non-authoritative answer: > Name: www.google.com > Address: 74.125.135.147 > Name: www.google.com > Address: 74.125.135.99 > Name: www.google.com > Address: 74.125.135.103 > Name: www.google.com > Address: 74.125.135.104 > Name: www.google.com > Address: 74.125.135.105 > Name: www.google.com > Address: 74.125.135.106 > > -Regards > Rahul > > > On Tue, May 28, 2013 at 3:42 PM, Balamurugan V G > <balamuruga...@gmail.com>wrote: > >> Check if you have the right DNS server settings on your VM. Sometimes >> even that can slow the access. >> >> Regards, >> Balu >> >> On Tue, May 28, 2013 at 3:31 PM, Rahul Sharma <rahulsharma...@gmail.com> >> wrote: >> > Yes, I am using KVM. >> > >> > -Regards >> > Rahul Sharma >> > >> > >> > On Tue, May 28, 2013 at 2:49 PM, JuanFra Rodriguez Cardoso >> > <juanfra.rodriguez.card...@gmail.com> wrote: >> >> >> >> Hi: >> >> >> >> Which hypervisor are you using? KVM with virtio driver? >> >> >> >> --- >> >> JuanFra >> >> >> >> >> >> 2013/5/28 Rahul Sharma <rahulsharma...@gmail.com> >> >>> >> >>> Hi All, >> >>> >> >>> I have a multinode setup of Openstack-Grizzly release with Networking >> >>> node as a separate machine. I am able to successfully bring up >> instances and >> >>> ping to google from within the instances. Everything is working fine >> except >> >>> the speed of internet access from within the instances. >> >>> >> >>> When I try to "wget <file>" or do "apt-get update", its taking a lot >> of >> >>> time(1 hr 40 mins for apt-get update). However, if I do the same on >> the >> >>> physical compute-nodes or on the network-node, it updates within >> seconds. I >> >>> am not sure why the network access within the instances is so slow >> which on >> >>> the other hand is quite fast on the hosts. >> >>> >> >>> Any pointers or steps to debug the issue would be really helpful. >> Please >> >>> let me know how I can debug this scenario. >> >>> >> >>> Thanks and Regards >> >>> Rahul Sharma >> >>> >> >>> _______________________________________________ >> >>> Mailing list: https://launchpad.net/~openstack >> >>> Post to : openstack@lists.launchpad.net >> >>> Unsubscribe : https://launchpad.net/~openstack >> >>> More help : https://help.launchpad.net/ListHelp >> >>> >> >> >> > >> > >> > _______________________________________________ >> > Mailing list: https://launchpad.net/~openstack >> > Post to : openstack@lists.launchpad.net >> > Unsubscribe : https://launchpad.net/~openstack >> > More help : https://help.launchpad.net/ListHelp >> > >> > >
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