[rrd-users] can rrdcgi generate just a image? (no html)
jrhett at svcolo.com
Wed Jul 19 07:34:33 MEST 2006
We're heavily using RRD here. I'm quite used to the normal syntax. Yes,
I've read the faq. I've also submitted patches to bugs. Humor me.
Okay, so I need to have an external web site reference an image created by
RRD. But just the image. In short
Based on my reading of the manpage, I want the output to standard out.
This actually works properly like so:
--start -8h --end -1
--lower-limit 0 --height 80 --width 100 --no-legend
-c SHADEA#ffffff -c SHADEB#ffffff
So what's the problem? No headers. It outputs PNG format immediately, and
the web server barfs:
[Tue Jul 18 16:03:14 2006] [error] [client 188.8.131.52] malformed header
from script. Bad header=\x89PNG:
How can I made this output image/png content type and then the image?
Right now I'm working around it by making it a normal html page with
nothing else in it and loading that in an <iframe..> element on the source
page, but this is fairly non-optimal.
No, I can't combine them. Most of the data on the page is database
generated and unavailable to the RRD server. Source server and RRD server
aren't even in the same counties.
SVcolo : Silicon Valley Colocation
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