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Percona Documentation

Connect HAProxy instance

Adding HAProxy

You can collect metrics from HAProxy on a node when:

  • There is already a configured haproxy instance.

  • See How to configure HAProxy.

  • After HAProxy is running (default address http://localhost:8404/metrics) you can add it to PMM.

  • Use the haproxy alias to enable HAProxy metrics monitoring.

  • There is already a pmm-agent instance running.

  • This node has been configured using the pmm-admin config command.

USAGE

pmm-admin add haproxy --listen-port=8404

where listen-port is the port number where HAProxy running. (This is the only required flag.)

The output of this command should look as follows:

HAProxy Service added.
Service ID  : /service_id/c481183f-70a2-443f-91e5-cae5cecd06a2
Service name: Ubuntu-haproxy

Additionally, one positional argument can be appended to the command line flags: a service name to be used by PMM. If not specified, they are substituted automatically as <node>-haproxy.

During adding here is connection check (can be skipped by flag --skip-connection-check). If HAProxy doesn’t run properly on the given port then you will see an error message:

Connection check failed: Get "http://127.0.0.1:8404/metrics": dial tcp 127.0.0.1:8404: connect: connection refused.

Beside positional argument shown above you can specify service name with the following flags: --username, --password, --metrics-path (path for scraping metrics, default: /metrics) and --scheme (http or https). Here are some examples:

pmm-admin add haproxy --listen-port=8404 --username=pmm --password=pmm new-haproxy
pmm-admin add haproxy --listen-port=8404 --metrics-path=/prom-metrics --scheme=https

Here you can check list of all available flags: pmm-admin.

You can also add HAProxy by UI in Grafana: Select Configuration → PMM Inventory → Add Instance.

HAProxy data is visible in the Advanced Data Exploration dashboard:

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