perfSONAR User Q&A and Other Discussion

["Roderick Mooi" <>]

Hi Aaron

> So you want the hosts to save the results 2 measurement archives: the
one 
> local to the machine running the test, as well as a central archive?

Yes, that's the basic idea. But there are probably some options here
and hence my email. Let me provide the reasoning and perhaps you can
advise further.
1. Our MPs are not redundant. If a hard drive fails, for example, we
lose the data.
Therefore our primary requirement is to have a backup of the data (test
results).
2. Accessing the test results from a central location will be handy
(e.g. for MADDASH). Also, if a node is isolated we can still access the
last test results from that node.

My present thinking revolves around 2 options:

option 1. Set up the nodes and mesh to store test results locally. Have
a separate cron job that runs say once a day and copies the data to a
central MA. This will meet the backup requirement. MADDASH will get data
directly from the MPs.
Questions: How to go about this? Ideally, if we could graph the data on
the central MA that would be great too.

option 2 (preferred). Set up the nodes and mesh to store test results
on the central MA. Point the local host to the central MA so that the
graphs for that host are available through it's own web interface (if
possible). Backup the central MA data periodically.
This is the closest to what we currently have = mesh configured with
central MA - and probably the simplest approach.

Which option (or another alternative) would you suggest? Which is
closest to perfSONAR-ps / Internet2 / ESnet best practice (or way you do
things)?

Thanks very much,

Roderick

>>> On 2014-08-05 at 19:25, Aaron Brown 
>>> <>
>>>  wrote:
> Hey Roderick,
> 
> So you want the hosts to save the results 2 measurement archives: the
one 
> local to the machine running the test, as well as a central archive?
If so, 
> this will only work on hosts running 3.4-rc, and you’ll need to do
some hand 
> configuration, unfortunately. I’m not sure there are good
instructions for 
> how to do that, though we could probably give you a quick and dirty
set of 
> steps to follow.
> 
> Cheers,
> Aaron
> 
> On Aug 5, 2014, at 10:36 AM, Roderick Mooi 
> <>
>  wrote:
> 
>> Good day
>> 
>> We would like to replicate our individual measurement point archives
to a 
> central MA server.
>> The central server has been setup as a toolkit node but will not be
used for 
> testing directly.
>> 
>> To clarify, we would like both the databases and the graphs to be
duplicated 
> - appearing on both the individual node as well as the central
server.
>> 
>> Can you please give us advice on where or how to start?
>> 
>> (we are using the mesh config if that helps)
>> 
>> Thanks and regards,
>> 
>> Roderick
>> 
>> 
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-- 
This message is subject to the CSIR's copyright terms and conditions, e-mail 
legal notice, and implemented Open Document Format (ODF) standard. 
The full disclaimer details can be found at 
http://www.csir.co.za/disclaimer.html.

This message has been scanned for viruses and dangerous content by 
MailScanner, 
and is believed to be clean.

Please consider the environment before printing this email.