Phil,
I checked out your site, and it looks great! I like your clean
presentation, and many of your changes are right on. The OpenPBS pages
are especially impressive. Are all those graphs made with ganglia
metrics?
Also, could you send me a tarball of your code (if that is ok). Even
though patching is not an option, having the code around will make it
easier to incorporate some of your ideas.
Thanks,
Federico
On Tuesday, April 8, 2003, at 04:10 AM, Phil Radden wrote:
Hi all,
I'm about to leave the job where I've been playing with ganglia, so I
thought I'd check if there are any modifications I've made which are
more
widely useful. Unfortunately I forked off at 2.5.2 and modified
heavily,
so getting patches isn't plausible, but you can view the pages at
http://ganglia.gridpp.rl.ac.uk/
(feel free to add it to the website if you want!) and I've dropped the
source at
http://frogtop.com/temp/ganglia-webfrontend.tgz
for anybody interested.
My modifications include the following;
- lots of aesthetic changes(!)
- lots of fixes so that PHP doesn't generate 1MB of errors per page!
- quoting of hash indices (now also in mainline)
- wrapping many code chunks in 'if (isset())' for better behaviour
when data structures are 'real-world' incomplete
- more use of htmlspecialchars() or rawurlencode() as appropriate,
and
other cleansing of untrusted input before use
[not guaranteed complete, but improved!]
- metric related changes
- new default metric '[none]' for fast render of cluster pages
- ability to choose 'special' metrics (cpu, load, mem) on the
cluster pages (single page view for all nodes in cluster)
- new 'special' metric 'network' (combines bytes in/out)
[multiplied up to bit/s to avoid confusing network people!]
- omit dull metrics (such as those combined into special metrics)
- different auth framework
- users with restricted view can only access summary data - no per
host data (so can't view host page, or get metrics on cluster page)
- connections from particular addresses always get full view,
otherwise you get asked for a password if you try and access
restricted pages
(marking clusters as private is still in there, too)
- if a cluster only contains one system, you go straight to the host
view,
instead of the cluster view (unless restricted)
- the gmetad sources for each cluster are highlighted in the cluster
view
- slightly different handling of up/down nodes, eg. to handle the case
where a box moves IP address (and so has one up and one down entry)
slightly more sensibly
- low resolution month graph bugfix (see mail from last week)
- extra 'special pages' for clusters (eg. our OpenPBS stuff, which
gives
additional graphs showing the state of the batch system queues), and
report pages (including a quick utility for scooping up archive
copies
via wget and mangling them so they can be used online)
I should of course emphasize that this lot was grown entirely for the
requirements here, and I've almost certainly broken things like the
grid_tree stuff which we don't use; and I apologise now for any grim
code
in there!
Feel free to mail me any questions (this address will work for a
while);
I'm likely to be using ganglia at the next place too, so I'll probably
be
back ;)
Cheers,
Phil
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Federico
Rocks Cluster Group, SDSC, San Diego, CA
