Pushing 3rd party VNF metrics into node exporter

[Divya Rajasekaran]

Hi,

   Is there any way to push 3rd party VNF metric into the node exporter and also I am not able to see LLC-stores metrics when the data is exported via node exporter with collector.perf option enabled.

Thanks,

Divya.R

[Christian Hoffmann]

Hi,

On 6/16/20 7:42 AM, Divya Rajasekaran wrote:
>    Is there any way to push 3rd party VNF metric into the node exporter

Are you referring to Virtual Network Functions as described here?
https://tools.ietf.org/id/draft-rosa-bmwg-vnfbench-01.html

I don't think node_exporter has support for this.

Could this be what you are looking for?
https://osm.etsi.org/wikipub/index.php/OSM_Performance_Management

If this doesn't help, you might have to look for another solution. If
this is only about some additional machine-specific metrics, it might be
a good fit for a pull request for node_exporter (check with the
maintainers first). A simpler approach would be using the
node_exporter's textfile collector for that and exporting the required
metrics to a "vnf.prom" file or something.

If this is something bigger / non-machine specific, it might make sense
to use separate exporter.

> and also I am not able to see LLC-stores metrics when the data is
> exported via node exporter with collector.perf option enabled.

Does the perf collector work at all for you?
What's the value of the kernel.perf_event_paranoid sysctl?

I'm not seeing a reference to LLC here:

https://github.com/prometheus/node_exporter/blob/master/collector/perf_linux.go

Which could mean that this metric isn't supported yet, but might be easy
to add.

Kind regards,
Christian


(Also, please don't cross-post :))

[Divya Rajasekaran]

Thanks Chris. Bsically i am using vcmts as my VNF and  I'm looking to switch from collectd to the node_exporter container for a telemetry related project.  Everything works great, except for the fact that we need to collect more perf events than are currently enabled in the default container.  Is there a way to pass a perf event list into node exporter somehow?  I noticed that the events are defined in the perf_linux.go file.  This means I would have to hack the events I need into the file and rebuild bu nothing related to LLC-stores and also pushing vcmts traffic metrics into node-exporter .  Any thoughts?

Thanks,

Divya