Pgbouncer exporter doesn't support metrics exposed by updated pgbouncer.

[mjmammoth]

Apache Airflow version

2.10.5

If "Other Airflow 2 version" selected, which one?

No response

What happened?

PGBouncer has been updated and now exposes more metrics than before - the exporter no longer supports the full list of metrics and the following error can be seen in the logs of the exporter:

could not get store result: could not get stats: unexpected column: total_server_assignment_count

The support has been added in upstream pg_exporter, supporting pgbouncer version 1.24 and up.

The pgbouncer base image was updated to 1.24 in the airflow-pgbouncer-2025.01.10-1.24.0 docker image, however the exporter has not been updated to support it.

The defaults for the helm chart are currently;

  pgbouncer:
    tag: airflow-pgbouncer-2025.01.10-1.24.0
  pgbouncerExporter:
    tag: airflow-pgbouncer-exporter-2024.06.18-0.17.0

Which are not compatible.

What you think should happen instead?

The exporter should be compatible with the version of pgbouncer deployed.

How to reproduce

Deploy the latest helm chart enabling pgbouncer, the logs for the metrics-exporter container in the pgbouncer pod will indicate the error

could not get store result: could not get stats: unexpected column: total_server_assignment_count

Operating System

Ubuntu 22.04

Versions of Apache Airflow Providers

No response

Deployment

Official Apache Airflow Helm Chart

Deployment details

pgbouncer enabled

Anything else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[boring-cyborg]

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