[Nodeshot] TX, RX rate

[nemesis]

 On Fri, 08 Nov 2013 14:59:31 +0100, Clauz <clauz at ninux.org> wrote:
> On 11/08/2013 02:26 PM, nemesis wrote:
>> On Fri, 08 Nov 2013 12:36:31 +0100, Clauz <clauz at ninux.org> wrote:
>>> On 11/08/2013 12:17 PM, nemesis wrote:
>>>>
>>>> [CUT]
>
>>>> I was thinking to implement some realtime updating too, for 
>>>> example, you
>>>> open up a device in the web interface, and you get real-time data
>>>> through a websocket connection between the browser and the server, 
>>>> the
>>>> server retrieves the info via one of the "connectors" (SSH, SNMP, 
>>>> HTTP,
>>>> ecc) every x secs and sends it back to the all the listening 
>>>> browsers on
>>>> that channel (so each opened device page will be a channel in 
>>>> order to
>>>> avoid crashing the server in case of many users watching the same 
>>>> page).
>>>
>>> wow!
>>>
>>>> I'm worried that the final result will be heavy from a hardware 
>>>> resource
>>>> point of view (many queries, often). I already see that when 
>>>> performing
>>>> some operations many queries are generated, but maybe we can take 
>>>> care
>>>> of optimization later.
>>>
>>> The overhead might be related to the connection method (e.g. ssh), 
>>> I
>>> don't think actual queries are heavy.
>>
>> We can use SNMP or any other protocol that feels lighter.
>> Do you have the link to the work that is being done on NodeDB?
>
> Yes, here it is:
> 
> https://redmine.confine-project.eu/projects/nodedb/repository/revisions/master/show/spider
>
> Some results of the spidering should be published here:
> http://stats.funkfeuer.at/
>
>> Regarding the connection method, there is a lot we can do as a 
>> group.
>>
>> I want to explain to everyone what I have been done latelly with the
>> help of Fabys, Lux and Matteo (Ninux.org).
>>
>> Check these out:
>> 
>> https://github.com/nemesisdesign/nodeshot/blob/refactoring/nodeshot/networking/connector/classes/ssh.py
>
> (perhaps we could use also key authentication instead of username and
> password?)

 Yes, is already implemented and working.

 I tested it with Matteo (Arzinet node in Rome), he added my public key 
 to his device, and the nodeshot instance running on my computer has been 
 able to enter into his device and fetch the data even though i purposely 
 put a wrong username/password combination.

 N.