Least Squres Fitting/Linear Regression Trending Graphs

[drub]

I made an addon for Cacti-0.8.6b that will generate a tredning line using least squares fitting, and can help you to see when a circuit/interface imight reach saturation.

Super Easy to use, You don't have to make these graphs, they are based on your already existing data.

It also takes advantage of Cacti-0.8.6's zooming feature to choose the date ranges in LSFView also

LSFView-0.4 can be found at http://www.watchmefreak.com

it requires ploticus to create the images since it can easily handle Least squares fitting and other functions I may add in the future.

I added a Y Axis setting and a Start-End date picker.

[drub]

Added Date Picker
Added Y Axis Max Chooser
Some Cleanup, and a better install script.

[egarnel]

"This graph does not appear to contain any data that I can plot."

OK, what am I missing. This seems like a really cool utility & I want to be able to make use of it


Thanks

Eric

[egarnel]

A little bit further......

I changed /bin/rrdtool to /usr/local/rrdtool/bin/rrdtool
now I am at...
Warning: fopen(read): failed to open stream: Permission denied Warning: fopen(read): failed to open stream: Permission denied

cactiuser can run rrdtool <options> just fine

line 183 is the fopen with the "a" flag set which I believe opens lsf.dat
lsf.dat does indeed get updated

touched lsf.dat, gave ownership to cactiuser, perms set to 777 for testing, will choke back when working

[drub]

I think I forgot to put in the README to make sure that your cacti directory is read/writeable by your web user, there are 4 files that get written and deleted( read, out, lsf.dat, lsf.png ) however since these get deleted so a fresh copy can be generated cacti dir needs to be read/write.

[egarnel]

found it.
wasn't a perms issue. it was a libgd library issue.
fix:

Code: Select all

cd /usr/lib
ln -s libgd.so.1.8.4 libgd.so.2

I cheated and went with the gd 1.8.4 library instead of upping to 2 .0. for some reason, I have always had a hard time compliling gd on redhat boxes[/code]

tail /var/log/httpd/error_log
pl: error while loading shared libraries: libgd.so.2: cannot open shared object file: No such file or directory

I knew those logs were good for something![/code]

[egarnel]

not working on .8.6c

Parse error: parse error in /usr/local/cacti/graph.php on line 217

Code: Select all

&nbsp<?php print "<a href=\"lsf.php?lsftitle=$graph_title&local_graph_id=" . $_GET["local_graph_id"] . "\"><img src=images/sctr.png border=0></a>"; ?>

[skwasha]

It's behaving really oddly for me... I got it to work a couple times. But 9 times out of 10 I just get the "This graph does not appear..." error. Logs seem to indicate something wrong with the data being passed to PL. But I haven't dug in any deeper yet.

Code: Select all

ERROR: '/var/www/html/cacti/rra/' is not an RRD file
cat: read: No such file or directory
processdata: error 17: No data have been read yet w/ proc getdata
pl proc areadef: error 105: both min and max expected (yrange)
pl proc areadef: error 10: cannot set up plotting area .. likely culprits: bad xrange or yrange, or bad area rectangle

[ggarbe]

The Add-on doesn't work. See error messages on screen bellow.


--------------------------
Windows2000
Cacti last version

[ssams]

did i miss it? i don't see it for download on your site.

[scavenger67]

if anybody got it working on w2k and cacti 8.6.c..
please tell me how.
Thanks

[dh94]

In case you can't find this add-on, it is located here:

http://www.watchmefreak.com/LSFView-0.4.tar.gz

I got this info from Freshmeat.net.

http://freshmeat.net/projects/lsfview/

Hope this helps.

Thanks,

DH

[Ninjaboy]

does anyone still have a link to download this

[USFJoseph]

Does anyone have a copy of this or know if it works with the latest version of cacti running on Windows?

[wazoqaz]

Bringing up a really old topic, but does anyone have a copy of this? Because it is not available at the posted location.

Thanks in advance,