Hi All, I was able to resolve this issue by changing the MTU size within the instances from 1500 to 1454. I got these pointers from this mailthread:- https://lists.launchpad.net/openstack/msg24050.html
Thanks and Regards Rahul Sharma On Tue, May 28, 2013 at 5:00 PM, Rahul Sharma <[email protected]>wrote: > Here is the content of my nova-compute.conf file:- > > root@compute1:~# cat /etc/nova/nova-compute.conf > [DEFAULT] > libvirt_type=kvm > libvirt_ovs_bridge=br-int > libvirt_vif_type=ethernet > libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver > libvirt_use_virtio_for_bridges=True > libvirt_cpu_mode=host-passthrough > > > -Regards > Rahul > > > On Tue, May 28, 2013 at 4:46 PM, Rahul Sharma <[email protected]>wrote: > >> Yes, same issue after restarting the nova-compute daemon. >> >> -Regards >> Rahul >> >> >> On Tue, May 28, 2013 at 4:29 PM, JuanFra Rodriguez Cardoso < >> [email protected]> wrote: >> >>> Same issues after restarting nova-compute daemons and launching new >>> instances? >>> >>> --- >>> JuanFra >>> >>> >>> 2013/5/28 Rahul Sharma <[email protected]> >>> >>>> Nope. Still the same problem. >>>> >>>> -Regards >>>> Rahul >>>> >>>> >>>> On Tue, May 28, 2013 at 4:15 PM, Rahul Sharma <[email protected] >>>> > wrote: >>>> >>>>> Thanks JuanFra. I will use these and let you know the status. >>>>> >>>>> Thanks and Regards >>>>> Rahul Sharma >>>>> >>>>> >>>>> On Tue, May 28, 2013 at 4:04 PM, JuanFra Rodriguez Cardoso < >>>>> [email protected]> wrote: >>>>> >>>>>> 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 <[email protected]> >>>>>> >>>>>>> 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 < >>>>>>> [email protected]> 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 < >>>>>>>> [email protected]> wrote: >>>>>>>> > Yes, I am using KVM. >>>>>>>> > >>>>>>>> > -Regards >>>>>>>> > Rahul Sharma >>>>>>>> > >>>>>>>> > >>>>>>>> > On Tue, May 28, 2013 at 2:49 PM, JuanFra Rodriguez Cardoso >>>>>>>> > <[email protected]> wrote: >>>>>>>> >> >>>>>>>> >> Hi: >>>>>>>> >> >>>>>>>> >> Which hypervisor are you using? KVM with virtio driver? >>>>>>>> >> >>>>>>>> >> --- >>>>>>>> >> JuanFra >>>>>>>> >> >>>>>>>> >> >>>>>>>> >> 2013/5/28 Rahul Sharma <[email protected]> >>>>>>>> >>> >>>>>>>> >>> 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 : [email protected] >>>>>>>> >>> Unsubscribe : https://launchpad.net/~openstack >>>>>>>> >>> More help : https://help.launchpad.net/ListHelp >>>>>>>> >>> >>>>>>>> >> >>>>>>>> > >>>>>>>> > >>>>>>>> > _______________________________________________ >>>>>>>> > Mailing list: https://launchpad.net/~openstack >>>>>>>> > Post to : [email protected] >>>>>>>> > Unsubscribe : https://launchpad.net/~openstack >>>>>>>> > More help : https://help.launchpad.net/ListHelp >>>>>>>> > >>>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >
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