I Need help to understand Cardano Node Metrics

[Thiago_Rodrigues]

Hi Guys,

Until this point I already have 2 synchronized and monitored servers (RN and PN) with keys already generated, but I haven’t registered them yet.

I’m considering to start a Cardano Pool asap, but I need to understand more about the metrics. Where can I find more comprehensive documentation about this?

I’ve been look for it here at the forum, but I haven’t found

Thanks a lot

[Alexd1985]

Not so much documentation about the metrics… to which metrics are u reffering?

[Thiago_Rodrigues]

Good question Alex.

I need to understand better about metrics like these:

• cardano_node_metrics_density_real
• cardano_node_metrics_Forge_forge_about_to_lead_int /
• cardano_node_metrics_Mem_resident_int
• node_filefd_allocated
• Aggregate Data Transfer (node_network_receive_bytes_total)

My concern is to understand the impact of those metrics to the CN performance and maintenance and why they are so important to be at the Grafana and Prometheus.

Tks

[Alexd1985]

@Thiago_Rodrigues

cardano_node_metrics_density_real

there are not so many explanations about… but you can try to search on goole for each metric

for example for the first one (density) I found on another topic:

What is chain density?

Hi guys… been trying to find info on this for days now. Found a few threads mentioning it but haven’t really seen enough to form an understanding of what “chain density” is. Haven’t found a proper definition of this in the docs also. Google also hasn’t been helpful. So, can someone please explain what this metric is? Is it the number of transactions in a given block? or something else? And why would it be important to track as pool operator? This will likely help a lot of new SPOs like me…

chain density is a reflection on the health of the network. With block coefficient is 0.05 and slot duration of 20s, and ideal chain density would be ~5%. A chain density with a lower % implies the degree to which nodes are missing or failing to produce assigned blocks.

but for the rest of metrics I couldn’t find anything… anyway

you should care on grafana about the:

• KES expiration date for Producer
• Peers connected for Producer and Relay
• Time syncronization
• Health of the nodes (CPU, RAM, DISK, SWAP)
• Tx processed
• Uptime

These are most relevant for me when I check grafana

[Thiago_Rodrigues]

Perfect, Alex.

I’ve been setup the nodes following the CoinCashew, and they use the gLiveView. Do you know if there are some documentation (or at least some explanation) about their metrics also?