fuel-dev team mailing list archive

[Mike Scherbakov <mscherbakov@xxxxxxxxxxxx>]

Network verification will fail, if any required interfaces are down.

Let's discuss here first any improvements we could do for this feature,
before creating the blueprint. I'm all in for finding out what we can do
better here, as network issues looks to be the most frequent thing which
happens in real deployments.


On Fri, Jan 24, 2014 at 1:06 PM, Andrey Danin <adanin@xxxxxxxxxxxx> wrote:

> Gleb, to get interfaces' states from DB you can do this:
>> http://paste.openstack.org/show/61805/
>>
>>
>> On Fri, Jan 24, 2014 at 4:30 AM, Roman Alekseenkov <
>> ralekseenkov@xxxxxxxxxxxx> wrote:
>>
>>> Gleb - thanks for bringing this up. I like the proposal, actually.
>>> Whatever makes the life of deployment engineers easier...
>>>
>>> Evgeny - the thing you mentioned cannot be a full solution for two
>>> reasons. The first is scale (nobody will click on each node to check the
>>> status of its NICs), the second is mass configuration (people are likely to
>>> configure NICs for multiple nodes at once and again won't go into
>>> individual nodes). You can imagine how bad it's going to be with 100+
>>> nodes...
>>>
>>> Andrew Woodward and Alex Shaposhnikov also have some specific
>>> suggestions on how to improve network verification and make it more
>>> meaningful. Guys - please speak up.
>>>
>>> I'd like to see a consolidated blueprint on launchpad from you guys
>>> (Gleb, Andrew, and Alex), which David and I can take and prioritize.
>>>
>>> Thanks,
>>> Roman
>>>
>>>
>>> On Thu, Jan 23, 2014 at 7:50 AM, Mike Scherbakov <
>>> mscherbakov@xxxxxxxxxxxx> wrote:
>>>
>>>> Our verify network feature (activated by corresponding button on
>>>> networks tab) verifies L2 connectivity of OpenStack networks. It configures
>>>> desired networking on bootstrap nodes, and runs UDP packets on required
>>>> interfaces.
>>>> We also check for unwanted DHCP traffic. There are no checks on L3
>>>> layer at the moment.
>>>>
>>>> Thanks,
>>>> On Jan 23, 2014 7:10 PM, "Evgeniy L" <eli@xxxxxxxxxxxx> wrote:
>>>>
>>>>> Hi Gleb,
>>>>>
>>>>> Regarding state of interfaces, we have such feature right now.
>>>>> It was merged and should be available in 4.0 release
>>>>>
>>>>> https://github.com/stackforge/fuel-web/commit/0e60ff862d75d8d2ef37d2b0f8d834260f8349b6
>>>>>
>>>>> But as far as I know it doesn't work correctly in virtual box.
>>>>>
>>>>> [image: Inline image 2]
>>>>>
>>>>>
>>>>> On Thu, Jan 23, 2014 at 12:05 PM, Gleb Galkin <ggalkin@xxxxxxxxxxxx>wrote:
>>>>>
>>>>>>
>>>>>> Hello, all
>>>>>>
>>>>>> Right now I have a bunch of nodes and each has 4 network interfaces.
>>>>>> How can I check that every interface on every node is UP,
>>>>>> that all switch ports are configured properly and there are no
>>>>>> connectivity problem?
>>>>>>
>>>>>> We have network verification in GUI but it can't provide me with
>>>>>> detail information about all network issues, can it?
>>>>>> I'd like to got detail information like
>>>>>>
>>>>>> on the node number X interface eth2 (xx:xx:xx:xx:xx:xx) has link
>>>>>> status 'down'.
>>>>>> or
>>>>>> on the node number X interface eth3 (xx:xx:xx:xx:xx:xx) is up but it
>>>>>> can't ping fuel node
>>>>>>
>>>>>> and so on
>>>>>>
>>>>>> It's good to have this information BEFORE you press Deploy button.
>>>>>>
>>>>>> Maybe we already have something like this? Maybe our network
>>>>>> verification write some report about the network issues?
>>>>>>
>>>>>> If we don't have this feature we should consider it. It'll save a lot
>>>>>> of time for deployers.
>>>>>> We can use mcollective to up all network interfaces on all nodes and
>>>>>> make arping the fuel node or something.
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Best Regards,
>>>>>> Gleb Galkin
>>>>>> OpenStack Deployment Engineer
>>>>>>
>>>>>> Mirantis Inc.
>>>>>> www.mirantis.com
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Mailing list: https://launchpad.net/~fuel-dev
>>>>>> Post to     : fuel-dev@xxxxxxxxxxxxxxxxxxx
>>>>>> Unsubscribe : https://launchpad.net/~fuel-dev
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>>>>>>
>>>>>
>>>>>
>>>>> --
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>>>>>
>>>>>
>>>> --
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>>>>
>>>>
>>>
>>> --
>>> Mailing list: https://launchpad.net/~fuel-dev
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>>>
>>>
>>
>>
>> --
>> Andrey Danin
>> adanin@xxxxxxxxxxxx
>> skype: gcon.monolake
>>
>


-- 
Mike Scherbakov
#mihgen