Beanstalkd Exporter for Prometheus

This is a simple server that scrapes beanstalkd stats and exports them via http for Prometheus consumption.

Getting Started

To run it:

./beanstalkd_exporter [flags]

Help on flags:

./beanstalkd_exporter --help

Usage

Specify the address of the beanstalkd instance using the --beanstalkd.address flag. For example,

./beanstalkd_exporter --beanstalkd.address=127.0.0.1:11300

The default address is localhost:11300.

Example With Beanstalkd

Start a beanstalkd instance with the following docker command.

docker run -d -p 11300:11300 --name beanstalkd dtannock/beanstalkd:latest

Run beanstalkd_exporter. The default flag values should be able to connect to the running beanstalkd instance.

./beanstalkd_exporter

Fetch the metrics for Prometheus.

curl -s http://localhost:8080/metrics

Failed Scrapes

Of the failed scraping strategies described here, the up variable is used.

You can see this in practice by starting/stopping the docker container, and fetching the metrics, then find the beanstalkd_up value.

docker stop beanstalkd
curl -s http://localhost:8080/metrics | grep beanstalkd_up
docker start beanstalkd
curl -s http://localhost:8080/metrics | grep beanstalkd_up

Metrics

Without passing any flags, only the system-level stats will be collected from beanstalkd (i.e. tube-level stats will not be collected).

To collect tube-level stats, you must use either the --beanstalkd.allTubes or --beanstalkd.tubes flag.

--beanstalkd.allTubes will collect metrics for all tubes.

./beanstalkd_exporter --beanstalkd.allTubes

--beanstalkd.tubes will collect metrics for one or more specific tubes.

./beanstalkd_exporter --beanstalkd.tubes=default,anotherTube

The metrics collected from beanstalkd can be filtered using the --beanstalkd.systemMetrics and --beanstalkd.tubeMetrics flags. For example,

./beanstalkd_exporter \
    --beanstalkd.systemMetrics=current_jobs_urgent_count,current_jobs_ready_count \
    --beanstalkd.tubes=default \
    --beanstalkd.tubeMetrics=tube_current_jobs_ready_count

Will fetch only 2 system-level metrics, and 1 metric labelled for the default tube.

The full list of metrics is available on this page.

Development

Dev dependencies

make devtools

Building

make build

Testing

make test

Version 2

Version 2 was an exercise in learning Nix (https://nixos.org/), specifically:

• Nix development environments
• Building go projects with Nix (thank you https://github.com/nix-community/gomod2nix)
• Nix flakes

The other changes are mainly related to removing legacy dependencies. The cli command is largely unchanged, and nix is not necessary to build the executable (see Makefile).

License

Apache License 2.0, see LICENSE.