[HOWTO] How can I make SUM of graphs

atrocity · Joined: 26 Aug 2003 Posts: 18

It can be simply under the detailed graph pages, no ?
Or, if it's possible, create a brand new feature in cacti....
Can you send me that script, to compare it with my one ?
Thanks
Jean

raX · Posted: Sun Sep 14, 2003 6:18 pm Post subject:

Yeah, that's definitely one place it could go. I would send you the work I did previously, but it is not an isolated script and fairly tied into Cacti itself. What I did for them was basically create a table that gave GB transfered for each month for each user that logged in.

-Ian

atrocity · Joined: 26 Aug 2003 Posts: 18

I think that if there are 2 tables, under the detailed graphs pages, it can be enough.... Something like :

Current mounth traffic : xyz Gb total
(then the last mounths like)
08 : xyz Gb total
07 : xyz Gb total
06 : xyz Gb total
05 : xyz Gb total
04 : xyz Gb total
03 : xyz Gb total
02 : xyz Gb total
01 : xyz Gb total

But, like that, it's not really easy to manage...
Will it not be a better idea, to make a new link appear in the detailed graphs, going to a page with a form, and the user can chose what he want to see ?
Like that, you can put the 'Current mounth traffic'

Jean

atrocity · Joined: 26 Aug 2003 Posts: 18

Currently, i'm only interested to see this stats for each of the switch ports that i monitor... But feel free to extend it

Jean

mike_tcis · Joined: 17 Jul 2002 Posts: 12 Location: Tulsa, OK

skt · Joined: 06 Nov 2003 Posts: 14

Anyone have an XML file for doing the graph sums. Just upgraded to 0.8.4 and would like to inport this feature.

Thanks!

raX · Posted: Fri Nov 21, 2003 12:37 am Post subject:

I attached the total bandwidth in bits and bytes that comes with new versions of Cacti.

-Ian

egarnel · Posted: Fri Nov 21, 2003 9:05 am Post subject: trying out the new templates

I imported the new templates into Cacti (.084 from upgrade) and selected 1 interface from a polling host as a test using the bits_sec_total template.

I can see the top level graph fine. It appears to be working correctly. I do not get graphs when I drill down on the graph in question.
Given the fact that the top level graph works, am I just being impatient and the other graphs will show up in a while?

Here is the source:
ERROR: no rrdtool fetch output, you probably forgot to pass a valid data source
ERROR: no rrdtool fetch output, you probably forgot to pass a valid data source

/usr/local/rrdtool/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--title="Monitor2 BigBrother/Nedi Server - Traffic - 172.20.1.204 (eth1)" \
--rigid \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
--vertical-label="bits per second" \
DEF:a="/usr/local/cacti/rra/monitor2_bigbrothernmis_server_traffic_in_952.rrd":traffic_in:AVERAGE \
DEF:b="/usr/local/cacti/rra/monitor2_bigbrothernmis_server_traffic_in_952.rrd":traffic_out:AVERAGE \
CDEF:cdefa=a,8,* \
CDEF:cdeff=b,8,* \
CDEF:cdefi=a,8,* \
AREA:cdefa#00CF00:"Inbound" \
GPRINT:cdefa:LAST:" Current\:%8.2lf %s" \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf %s" \
COMMENT:"Total In: 0 bytes\n" \
LINE1:cdeff#002A97:"Outbound" \
GPRINT:cdeff:LAST:"Current\:%8.2lf %s" \
GPRINT:cdeff:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdefi:MAX:"Maximum\:%8.2lf %s" \
COMMENT:"Total Out: 0 bytes"

raX · Posted: Wed Nov 26, 2003 3:55 pm Post subject: Re: trying out the new templates

egarnel · Posted: Mon Dec 01, 2003 8:35 am Post subject: Files present

The file does indeed exist. The weird thing is that the top level graph shows up and seems to be accurate. This is on a box that has been upgraded to 0.8.4 and has had the modification previously mentioned in this thread.

raX · Posted: Tue Dec 02, 2003 12:30 am Post subject:

Typically when the graph looks fine at the top level, but not in detail, it indicates a problem with the graph legend. When a graph is drawn as a top level graph, Cacti doesn't even bother with the graph legend code. Since your bandwidth summation items are both COMMENT types, they both reside on the legend.

In the spirit of debugging, try replacing your 'lib/rrd.php' file with the following:

http://www.raxnet.net/downloads/patches/2003-12-01/rrd.php.txt

Then show me what you get after clicking "view source" for the broken summation graph.

-Ian

egarnel · Posted: Tue Dec 02, 2003 9:10 am Post subject: results of debug

FETCH ARRAY:

ERROR: no rrdtool fetch output, you probably forgot to pass a valid data source
FETCH ARRAY:

ERROR: no rrdtool fetch output, you probably forgot to pass a valid data source

/usr/local/rrdtool/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--title="Monitor2 BigBrother/Nedi Server - Traffic - 172.20.1.204 (eth1)" \
--rigid \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
--vertical-label="bits per second" \
DEF:a="/usr/local/cacti/rra/monitor2_bigbrothernmis_server_traffic_in_952.rrd":traffic_in:AVERAGE \
DEF:b="/usr/local/cacti/rra/monitor2_bigbrothernmis_server_traffic_in_952.rrd":traffic_out:AVERAGE \
CDEF:cdefa=a,8,* \
CDEF:cdeff=b,8,* \
CDEF:cdefi=a,8,* \
AREA:cdefa#00CF00:"Inbound" \
GPRINT:cdefa:LAST:" Current\:%8.2lf %s" \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf %s" \
COMMENT:"Total In: 0 bytes\n" \
LINE1:cdeff#002A97:"Outbound" \
GPRINT:cdeff:LAST:"Current\:%8.2lf %s" \
GPRINT:cdeff:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdefi:MAX:"Maximum\:%8.2lf %s" \
COMMENT:"Total Out: 0 bytes"

raX · Posted: Thu Dec 04, 2003 5:20 pm Post subject:

I have a feeling that your problem is a result of not having a data source selected for the two COMMENT graph items.

Go to "Graph Templates" and select "Interface - Traffic (bits/sec, Total Bandwidth)". Click "Inbound Data Source", make sure that item #5 is selected, and click "Save". Now click "Outbound Data Source", make sure that item #10 is selected, and click "Save".

Let me know if this helps.

-Ian

sini · Cacti User Joined: 24 Nov 2003 Posts: 55 Location: Hungary

Hi,

On graph summation I mean the throughput summation.
Imagine that you buy internet from two different ISP and want to monitor the
sum of its in/out traffic to see what the max peak of it.

A tried to operate with CDEF creating a CDEF grap1+grap2-in/out:(cdef=current_data_source,current_data_source,+) but not worked...

Finally I done manually but I can't print out the summ of current/aver/max
values with gprint although the graph lines are in correct places showing the
sum of values.
I attached a graph to see the result.

Q:Is there a template for it?