Sum other values than Bandwidth

rebel · Post by **rebel** » Sun Mar 13, 2005 7:56 am

Hi,

i want to sum incoming and outgoin Messages from my Exim Mailserver. The graph shows all values correct. But when I add a Total Line with |sum:0:current:0:auto| the result is not what I expect

Can anybody help me?

Post by **TheWitness** » Mon Mar 14, 2005 5:31 am

Please be more specific. There is a CDEF called "Total of All Data Sources". You should consider that.

TheWitness

rebel · Post by **rebel** » Mon Mar 14, 2005 9:16 am

Ok, i will try

I have a graph for my exim. In this Graph are 2 Data-Sources, Inbound and Outbound Messages. It will be nice to have that i can have a total value for each Data-Source.
Inbound Current: Average: Maximum: Total:
Same for outbound. And after that a total sum for both with the CDEF Function "Total all Data Sources"

Is it possible?

Regards

Tom

Post by **TheWitness** » Mon Mar 14, 2005 5:15 pm

Sorry, quite confused at the moment at your inquirey.

TheWitness

rebel · Post by **rebel** » Tue Mar 15, 2005 2:07 am

sorry for confusing you

I 've attached my Graph. As you can see there are 2 Datasources Inbound and Outbound. Now i want to have a sum for all Inbound and all Outbound Messages, the value for Total In and Total out ist not really correct

regards

Tom

Post by **TheWitness** » Tue Mar 15, 2005 5:58 pm

Tom,

I the example, what should Total In and Total Out be? I am still a bit confused.

Larry

rebel · Post by **rebel** » Wed Mar 16, 2005 5:21 pm

Ok, next try.

Total In and Total Out should be a sum from Current. A total sum pf processed Messages. Like Total In = Total In + Current. Current is the value of processed Messages in 5 Minutes. Is it possible to get this in a sum?

Tom

Post by **TheWitness** » Wed Mar 16, 2005 8:27 pm

So, you want it for the time period select the total of all values. This would be equivalent to Average * Number of Samples? Is this what you want.

AKA. If your selected time period is 30 minutes and your sample rate was 5 minutes and the average was 20 samples per interval, your total would be 120?

TheWitness

rebel · Post by **rebel** » Wed Mar 23, 2005 7:43 pm

Yes, i think that is exactly what i want

Is it possible? It woulbe be only a nice to have, there are other ways to collect this data, but if i could have all in one place that will be great.

Post by **TheWitness** » Wed Mar 23, 2005 9:23 pm

The problem is determining the timespan when there are so many options. This is a feature request to expose the timespan and number of samples as a replacement value for application in a CDEF although there are many other methods that I may not be aware of.

TheWitness

rebel · Post by **rebel** » Wed Mar 30, 2005 4:55 am

okay, i understand. Thx for your time and help.

Tom

Post by **gandalf** » Mon Jun 06, 2005 11:51 am

rebel wrote:okay, i understand. Thx for your time and help.

Tom

Tom,

I fiddled around with the |sum: ...| feature a bit just to solve a similar problem with a mail scanning probe (spamassassin). My base value is the value for "the scanned mails of the last 60 sec." and I tried to sum up as |sum:auto:current:2:auto| which is nearly the same as your approach (only different formatting). I ended up with sums that are exactly 60 times the value that is to be expected (that is: average * 60 minutes per hour * 24 hours per day). But I don't know how to do maths with this |sum: ...| values. I'd like to put them in a CDEF like "|sum: ...|,60,/". Or to have a CDEF that totals all values of the currently displayed graph (but I don't know how).

Still searching ...

Reinhard

Post by **raX** » Wed Jun 08, 2005 9:11 am

Currently, there is no way to apply mathematical manipulations to the summation value. This value is calculated outside of RRDtool by Cacti and therefore cannot be manipulated using a CDEF. I suppose it would be possible to add something like this in the future... I'd have to think about it a bit though.

-Ian

Post by **gandalf** » Thu Jun 09, 2005 1:32 am

Ian,

just tried another workaround. I added a GPRINT to my graphs based on the values to be summed up. Then I applied a CDEF (in this case: devide by 60 as in the example above), based on the LAST value, the math is correct. Now I changed this graph template item from GPRINT to COMMENT and introduced the text format "Total: |sum:auto:current:2:auto|". But this does not sum up the CDEFed values, sigh!
So my question is: may it be easier to |sum:...| CDEFed values than adding maths to the |sum:...| feature?

with thanx for your work
Reinhard

Post by **raX** » Mon Jun 13, 2005 12:02 am

lvm wrote:So my question is: may it be easier to |sum:...| CDEFed values than adding maths to the |sum:...| feature?

Unfortunately, no. Cacti only has access to the raw values that are stored in the .rrd files. RRDtool does not apply CDEF's until the graph is actually generated, which is outside of Cacti's influence.

-Ian

Sum other values than Bandwidth

Sum other values than Bandwidth

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