I've done some more digging, and come up with another puzzling piece of information. Hobbitgraph.sh is returning images, but they are very small. Here are the apache logs from the two distinct page views:
Disk view (note the size of the file returned, 145 bytes):
10.3.144.37 - - [10/Mar/2010:13:26:52 -0800] "GET /xymon-cgi/hobbitgraph.sh?host=wal-ddbs-01.us.corp.pmigroup.com&service=disk&graph_width=576&graph_height=120&first=1&count=3&disp=wal%2dddbs%2d01%2eus%2ecorp%2epmigroup%2ecom&nostale&color=green&graph=hourly&action=view HTTP/1.1" 200 145
Trends view (a more reasonable file size, 20297 bytes):
10.3.144.37 - - [10/Mar/2010:13:28:26 -0800] "GET /xymon-cgi/hobbitgraph.sh?host=wal-ddbs-01.us.corp.pmigroup.com&service=disk&graph_width=576&graph_height=120&first=1&count=3&disp=wal%2dddbs%2d01%2eus%2ecorp%2epmigroup%2ecom&graph=hourly&action=view HTTP/1.1" 200 20297
Anyone have any ideas?
Mark
-----Original Message-----
From: Patrick Nixon [mailto:user-1f2406f832af@xymon.invalid]
Sent: Wednesday, March 10, 2010 12:47 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] Graphs not working on individual views, but working on trends view
If it helps any, my graphs are being generated with the same links as
yours (nostale vs no nostales) without issue.
There's probably some other underlying issue.
On Wed, Mar 10, 2010 at 2:31 PM, Mark Stoltzfus
<user-5b4ba45c8394@xymon.invalid> wrote:
Hi, we just did a forklift upgrade from our old Hobbit servers to two brand
new boxes running Xymon 4.2.3, and for the most part, it's been a seemless
transition. We noticed some strange behavior, though, with the graphs. The
graphs under disk, cpu, and memory don't show up, but under trends, they
show up just fine. I took a look at the different shortcuts, and they look
very similar to me, with the differences highlighted in red:
Link copied from "disk" section:
https://monitor.us.corp.pmigroup.com/xymon-cgi/hobbitgraph.sh?host=wal-ddbs-01.us.corp.pmigroup.com&service=disk&graph_width=576&graph_heigh
t=120&first=1&count=3&disp=wal%2dddbs%2d01%2eus%2ecorp%2epmigroup%2ecom&graph=hourly&action=selzoom
Link copied from "trends" section:
https://monitor.us.corp.pmigroup.com/xymon-cgi/hobbitgraph.sh?host=wal-ddbs-01.us.corp.pmigroup.com&service=disk&graph_width=576&graph_heigh
t=120&first=1&count=3&disp=wal%2dddbs%2d01%2eus%2ecorp%2epmigroup%2ecom&nostale&color=green&graph=hourly&action=selzoom
Any ideas as to what's going on? I did find some old posts from Henrik
about troubleshooting graph generation, but the case he was dealing with
there was where the graphs wouldn't generate at all. In this case, the rrds
are all there and the graphs are being generated, just not in all views.
Thoughts?
Mark