Open Stack

Diego,

No, ssh can't connect to an Instance and also, if I login into that
Instance via SPICE Console, I can't run "apt-get update", it froze too...

Tks,
Thiago


On 20 May 2014 13:35, Diego Parrilla Santamaría <
diego.parrilla.santamaria at gmail.com> wrote:

> Is SSH the only protocol failing? Have you checked MTU size in your
> infrastructure?
>
> Regards
> Diego
>
>  --
> Diego Parrilla
> <http://www.stackops.com/>*CEO*
> *www.stackops.com <http://www.stackops.com/> | *
> diego.parrilla at stackops.com | +34 91 005-2164 | skype:diegoparrilla
>
>
>
>
> On Tue, May 20, 2014 at 6:02 PM, Martinx - ジェームズ <
> thiagocmartinsc at gmail.com> wrote:
>
>> 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 <jason.bishop at gmail.com> 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 <
>>> thiagocmartinsc at gmail.com> 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 <thiagocmartinsc at gmail.com>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 at net-controller-1:~# ip netns exec
>>>>> qrouter-c252886a-1fd0-45dd-9e3b-4233786e7960 ssh -i ~/pem
>>>>> ubuntu at 192.168.1.17 -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 at 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 at 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
>>>>>
>>>>
>>>>
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>>>
>>
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