Apparently we're all facing the same issue. The fact is, Neutron is too much complex...
Back with Havana, we faced this: https://bugs.launchpad.net/neutron/+bug/1252900 But now, with Ubuntu 14.04 + IceHouse, seems to be a different problem. "Neutron + GRE or VXLAN", is very hard to stabilize and doesn't scale very well... I'm seeing that it works better with "VLAN / Flat Networks" (i.e. without using the Neutron Network Node as Instance's default gateway). I'll try it instead... Maybe James Denton, from Rackspace, might help us again! :-P Best! Thiago On 20 May 2014 11:21, Jason Bishop <[email protected]> wrote: > > that happened to me too. maybe same root cause? > > see http://ubuntuforums.org/showthread.php?t=2223789 > > cheers > jason > > > > On Mon, May 19, 2014 at 10:59 PM, Martinx - ジェームズ < > [email protected]> wrote: > >> I managed to login into a Ubuntu Instance via `SPICE Console` and there >> is more network outages from within it, take a look ("apt-get update" froze >> too): >> >> -- >> http://i.imgur.com/IeEXIjR.png >> -- >> >> Am I missing something?! >> >> >> On 20 May 2014 02:47, Martinx - ジェームズ <[email protected]> wrote: >> >>> Hey Stackers! >>> >>> I'm facing a weird network issue here, with *IceHouse* and *Neutron L3*... >>> Using "Per-Project Router with Private Networks"... >>> >>> I am unable to connect via SSH into an Instance, from its own "Project >>> Namespace Router", look: >>> >>> -- >>> root@net-controller-1:~# ip netns exec >>> qrouter-c252886a-1fd0-45dd-9e3b-4233786e7960 ssh -i ~/pem >>> [email protected] -v >>> OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 >>> debug1: Reading configuration data /etc/ssh/ssh_config >>> debug1: /etc/ssh/ssh_config line 19: Applying options for * >>> debug1: Connecting to 192.168.1.17 [192.168.1.17] port 22. >>> debug1: Connection established. >>> debug1: permanently_set_uid: 0/0 >>> debug1: identity file /root/pem type -1 >>> debug1: identity file /root/pem-cert type -1 >>> debug1: Enabling compatibility mode for protocol 2.0 >>> debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 >>> debug1: Remote protocol version 2.0, remote software version >>> OpenSSH_6.6p1 Ubuntu-2ubuntu1 >>> debug1: match: OpenSSH_6.6p1 Ubuntu-2ubuntu1 pat >>> OpenSSH_6.5*,OpenSSH_6.6* compat 0x14000000 >>> debug1: SSH2_MSG_KEXINIT sent >>> ... >>> ... >>> ...ssh stucked!!! >>> ... >>> -- >>> >>> The SSH connection froze at "debug1: SSH2_MSG_KEXINIT sent" and it >>> never establishes... >>> >>> From its attached `Floating IP`, the symptom is the same, I can't >>> connect via SSH into a Instance, I tried it with 12.04 and 14.04, same >>> result for both... >>> >>> The Instance looks good from SPICE Consoles (but I need to login with >>> "ubuntu user" via network first, using ssh key). >>> >>> - >>> >>> I'm running tcpdump on both "qr-$INT" and at the Compute Node DATA >>> NETWORK, to see the GREv0 traffic too, here it is: >>> >>> -- >>> root@net-controller-1:~# ip netns exec >>> qrouter-c252886a-1fd0-45dd-9e3b-4233786e7960 tcpdump -v -ni qr-eeb0d2f3-42 >>> >>> http://paste.openstack.org/show/80969/ >>> >>> NOTE: From the line ~16 to 32, SSH was already frozen... >>> -- >>> >>> root@compute-node-1:~# tcpdump -ni eth1 | grep -v IP6 >>> >>> http://paste.openstack.org/show/80970/ >>> -- >>> >>> What can I do to deep investigate this?! >>> >>> I double checked everything, including OVS bridges, sysctl.conf, `ethtool >>> --offload ethX gro off` and etc... Don't know what's is wrong... >>> >>> I think that this is the last problem I'm facing with IceHouse, I would >>> like to put it into prod but, I am unable to do it right now... :-/ >>> >>> Tks in advance! >>> >>> Best, >>> Thiago >>> >> >> >> _______________________________________________ >> Mailing list: >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> Post to : [email protected] >> Unsubscribe : >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> >> >
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