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METRICS.md

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Near Metrics Instructions

Setup Prometheus

Download a copy of Prometheus from https://prometheus.io/ selecting the OS and extracting the relevant files.

Alternatively, you can also use your favorite package manager. For example, in Arch linux:

$ sudo pacman -S prometheus

Or on Mac OS:

$ brew install prometheus

Running

First run Prometheus, using the prometheus-near.yml config file located in the ./conf directory of this repository:

$ prometheus --config.file=$PATH_TO_REPO/conf/prometheus-near.yml

Build the NEARCore node:

$ cargo build -p neard

Generate the initial configuration (genesis state, validator keys and node keys):

$ $PATH_TO_REPO/target/debug/near init $ $PATH_TO_REPO/target/debug/near testnet

Then run a NEAR node0:

$ $PATH_TO_REPO/target/debug/near --home ~/.near/node0 run

Extract the server details from the NEAR boot node, it will look similar to:

ed25519:[email protected]:24567

Run nodes 1 to 3, replacing --boot-nodes with the details output from node0 and X with 1, 2 then 3 (executing the addition symbols).

target/release/near --home ~/.near/nodeX run \
                    --boot-nodes "ed25519:[email protected]:24567" \
                    --network-addr 0.0.0.0:(24567 + X) --rpc-addr 0.0.0.0:(3031 + X)

Setup and run Grafana

Download a copy of Grafana from https://grafana.com/ selecting the OS and extracting the relevant files.

Alternatively, you can also use your favorite package manager. For example, in Arch linux:

$ sudo pacman -S grafana

Start grafana as a service:

$ systemctl start grafana

Browse to the following address: localhost:3000 (default username/password is admin/admin):

Click Create your first datasource -> Prometheus and update the following fields:

Name: Prometheus URL: http://localhost:9090 Scrape interval: 5 seconds Query timeout: 5 seconds

Click Save & Test then click back.

After this, click the + -> Import -> Upload .json file

Select the configuration file at $PATH_TO_REPO/conf/grafana-dashboard.json and click Load

You should then be able to view a dashboard with a few metrics!

Details

Near has a HTTP endpoint for Prometheus using the HTTP Server. The default port for the server is 3030 and the endpoint is /metrics. Running a node locally raw Prometheus data can be reached at localhost:3030/metrics.

Prometheus can be connected to on localhost:9090. Using this data can me manipulated into graphs or more useful forms.

Add an additional metrics

Define the metrics in the crate in a file named metrics.rs. Each new metric should be defined as a constant reference within a lazy_static macro.

It is recommended to use the safe near-metrics crate operations when interacting with the metrics to handle the case where instantiation fails.