Multiple data sources in a graph using a custom templaplate

[kessen]

Hi,

I've encountered a strange behavoiur in Cacti which I personally don't understand. I've tried to figure out if someone had the same problem. Since I wasn't able to find a posting to my specific problem please excuse me if there is a howto or solution which I've overlooked.

The scenario:
I've got 2 Switches which have WAN-Lines connected to them. I'm trying to get a consolidated WAN-Traffic graph by summing all the traffic up whilst keeping the inbound traffic apart from the outbound traffic.

here's what I did:
1st: I've made sure the data sources of the four interfaces existed and the graphing is working.

2st: I created a cdef "sumof4" to summerize 4 values: stating

[gandalf]

Sorry that I do not answer directly to your errors.
Please use the pseudo CDEF variable TOTAL_ALL_DATA_SOURCES_NODUPS or TOTAL_SIMILAR_DATA_SOURCES_NODUPS.
They were just amde for adding everything in there (either all interfaces or "all of the same kind", e.g. INPUT)
Reinhard

[kessen]

Hi gandalf,
hallo Reinhard

thanks for answering and sorry I didn't mention it: I've tried to change the CDEF to TOTAL_ALL_DATA_SOURCES_NODUPS prior to my mailing. Just to make sure I've checked again. I've tried to set it up as a "Special Data Source" as well as a "Custom String". The behavior stayed the same.
I still have no clue ...

thanks und Danke
Andreas

[gandalf]

Try attached docs, please
Reinhard

[kessen]

Thank your for telling me to read the manual quite a good idea. In fact it is so good I had it myself weeks ago

the question still remains:
Why are my Selections in the "Supplemental Graph Template Data" ignored and six of eight selected data sources are overwritten by the last two data sources ?

To hint me off to read another manual is not very helpful.
This is neither my first cdef nor my first graph with cacti but the first unexpected behavior in Cacti I've encountered.

Is the number of data sources perhaps limited to the number of graphs in the template ? The "new" thing in my graph is that I do not want the single graphs to be displayed but only the sum - therefor I've only one Graph of a cdef , but 4 Datasources. In the example in the FINE manual the multiple graphs are plotted supplemented by an additional graph of "the sum".

[gandalf]