I doubt you're going to get better than that thread.
I've never had need to do that - but it would certainly be interesting if, once
you've figured it out, if you'd return your findings to the list. I can
certainly see myself [and others] needing such an option at some point.
Someone a while back [years ago] gave a script to do an MTR and I tweaked that
some to grab MTR's and email them when certain conditions occur. [It's pretty
valuable when you want to beat up, Comcast, for example for having a terrible
path. The ISP can't wiggle, claiming the loss is occurring somewhere outside
their control when you drop the MTR on them showing the losses are occurring in
their network.] Anyway - having someone put that back into the mix was really
helpful, saving me quite a lot of time having to re-create their work.
So, if you'd do the same on your graphing issue, that would save someone the
trial-and-error you're suffering.
-Greg
Thanks Greg,
I’ve read that thread, and have been experimenting with rrdgraph. The problem
I've run into is figuring out the correct options, data definitions, calc data,
and graphic elements needed to generate the standard smokeping graph. I think
that would work if I could sort all that out. I got as much as I could from
other rrd examples and combing through the Graph.pm module in Smokeping, but no
joy yet.
If anybody has an example of the actual smokeping rrdgraph options and args,
that would really help.
— Daniel Crandall
Savant - DevOps
From: Gregory Sloop <[email protected]>
Reply-To: Greg Sloop <[email protected]>
Date: Wednesday, March 23, 2016 at 11:40 AM
To: Daniel Crandall <[email protected]>, Douglas Spindler
<[email protected]>, "[email protected]"
<[email protected]>
Subject: Re: [smokeping-users] Automatically download fresh .png snapshot.
Re: [smokeping-users] Automatically download fresh .png snapshot.
This thread might help.
https://www.mail-archive.com/smokeping-users%40lists.oetiker.ch/msg04777.html
-Greg
That’s actually exactly what I’m trying to avoid. ;)
The keyword is automation. I need to script this so that I can present static,
7 day graphs to people outside my dept – without having to spend time manually
taking screenshots of each graph.
— Daniel Crandall
Savant - DevOps
From: Douglas Spindler <[email protected]>
Date: Wednesday, March 23, 2016 at 11:09 AM
To: Daniel Crandall <[email protected]>,
"[email protected]" <[email protected]>
Subject: RE: [smokeping-users] Automatically download fresh .png snapshot.
Can’t you just take a screenshot?
From: smokeping-users
[mailto:[email protected]] On
Behalf Of Daniel Crandall
Sent: Wednesday, March 23, 2016 10:32 AM
To: [email protected]
Subject: [smokeping-users] Automatically download fresh .png snapshot.
Hi,
I need to automatically download .png of 7 day snapshots of certain smokeping
graphs to send to a group of concerned parties. I’ve tried two techniques
without success:
1) Download the png using wget
I learned about setting the displaymode=a and adjusting the start and end URL
chunks to get a URL like this:
https://smokeping.oursite.com/smokeping/smokeping.cgi?displaymode=a;start=now-7day;end=now;target=OurServers.HTTPSLatency.prd
This URL gives me a single graph with the snapshot interval I need. But I
can’t figure out how to download the actual graph png. It’s weird because if I
put the URL in a browser, right click on the graph and save it manually, it
saves a file called smokeping.png that is the correct graph. But when I try to
do the same using wget like this:
`wget -nd -r -l 5 -A png
https://smokeping.oursite.com/smokeping/smokeping.cgi?displaymode=a;start=now-7day;end=now;target=OurServers.HTTPSLatency.prd`
It downloads smokeping.png – but instead of it being a graph, this version is
simply the smokeping logo. It also downloads the RRD logo, but no other png
files.
2) Using rrdtool on the rrd files themselves to generate a png of the snapshot
I’m looking for on my smokeping server, and then copying it to the web server
dir where I can then download it using wget.
Unfortunately I haven’t been able to figure out the correct rrd parameters and
DEF, CDEF, AREA..etc. settings to actually generate a smokeping graph.
If anyone can point me in the right direction with either of the above methods
– or share another technique to achieve the same goal, I would be very grateful.
Thanks!
— Daniel Crandall
Savant - DevOps
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delivery to the intended recipient. If you have received this transmission in
error, any use, reproduction or dissemination of this transmission is strictly
prohibited. If you are not the intended recipient, please immediately notify
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Statement of Confidentiality
The contents of this e-mail message and any attachments are confidential and
are intended solely for the addressee. The information may also be legally
privileged. This transmission is sent in trust, and the sole purpose of
delivery to the intended recipient. If you have received this transmission in
error, any use, reproduction or dissemination of this transmission is strictly
prohibited. If you are not the intended recipient, please immediately notify
the sender by reply e-mail or at 508.683.2500 and delete this message and its
attachments, if any.
--
Gregory Sloop, Principal: Sloop Network & Computer Consulting
Voice: 503.251.0452 x82
EMail: [email protected]
http://www.sloop.net
---
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