HOW TO CREATE AN XML FILE TO SNMP DATA QUERY FROM PATH: /resource/snmp_queries/

[wpgeronimo]

Hi
how do i create a new xml file to graph my upstream_snr in my cacti server cli
my cacti version is latest 1.2.25

hope to hear from others

Thank you.

[TheWitness]

Those XML files have to be written by hand. We had talked about moving it all to the database years ago, but we never committed to a project to implement it as such.

[wpgeronimo]

Those XML files have to be written by hand. We had talked about moving it all to the database years ago, but we never committed to a project to implement it as such.

But how do i create the file? Is there any template to paste it on the file? I need the graph of upstream_snr and other xml file that do not have in the default after installation.

Thanks,

[Osiris]

I normally use vim and take something close as a starting point, maybe a related data query and go from there. You start with:

1) What input data do I need to collect. This could be called object metadata.
2) What output data can be provided. This data is always numeric like temperature, voltage, bytes, etc.
3) Is all that data and metadata provided by SNMP and is it in a good table format from the vendor. If not, I go with the script server approach.
4) What is the primary key? Is it reliable. Avoid, for example, is not reliable.

From that you construct

1) The XML file itself,
2) The script if using either script query or script server query,
3) The Data Query to ensure everything in the XML file checks out,
4) The Data Templates followed by Graph Templates. I normally do them in sets.
5) Mapping the Graph Templates to the Data Query,
6) Then, test on one good Device to ensure it's to you liking,
7) Audit the Data to Ensure it's actionable (Thold plugin),
8) Apply to the Device Template,
9) Sync the Device Template to Devices,
10) Write automation rules for Graphs and Trees (if applicable).

This should all be laid out in the documentation. The first few you write appear hard, but after a while, you cloud write a dozen a day.

[wpgeronimo]

I normally use vim and take something close as a starting point, maybe a related data query and go from there. You start with:

1) What input data do I need to collect. This could be called object metadata.
2) What output data can be provided. This data is always numeric like temperature, voltage, bytes, etc.
3) Is all that data and metadata provided by SNMP and is it in a good table format from the vendor. If not, I go with the script server approach.
4) What is the primary key? Is it reliable. Avoid, for example, is not reliable.

From that you construct

1) The XML file itself,
2) The script if using either script query or script server query,
3) The Data Query to ensure everything in the XML file checks out,
4) The Data Templates followed by Graph Templates. I normally do them in sets.
5) Mapping the Graph Templates to the Data Query,
6) Then, test on one good Device to ensure it's to you liking,
7) Audit the Data to Ensure it's actionable (Thold plugin),
Apply to the Device Template,
9) Sync the Device Template to Devices,
10) Write automation rules for Graphs and Trees (if applicable).

This should all be laid out in the documentation. The first few you write appear hard, but after a while, you cloud write a dozen a day.

Good day,

Thank you for this guide maybe it will take some time to study on how to create xml file but i need a template only for
the upstream_snr of the device to put on a data query path and create a graph for SNR.

Happy holidays!