Dynatrace Gen3 - No Alert When PostgreSQL Docker Container Goes Down

Selvam — Tue, 09 Jun 2026 15:49:41 GMT

Hi Team,

I have a simple lab application built on:

Node.js application
PostgreSQL backend

The PostgreSQL database is running as a Docker container service.

Environment details:

Dynatrace OneAgent version: 1.337
Full-stack monitoring enabled
Container was restarted after OneAgent installation
Using Dynatrace Gen3

Observation:

Dynatrace is able to monitor the container metrics successfully
CPU usage
Memory usage
Container metrics
When I manually stop the PostgreSQL container, I can see the CPU/Memory metrics dropping to zero
However:

Dynatrace is not generating any Problem or Alert when the container goes down
Nothing appears under Problems/Alerts
I also tried:

Process Availability policy
Matching process using:
Executable
Command line
$contains(postgres)
But still no alert is generated when the container stops.

My expectation:

I would like to generate an alert/problem whenever the PostgreSQL container service becomes unavailable/down.
Questions:

Does Dynatrace Gen3 require additional configuration for container process availability alerts?
Is Process Availability policy the correct approach for Docker containers?
Should this be configured through:
Process monitoring rules
Kubernetes/container workload alerts
Custom metric events
Service availability monitoring
Is there any limitation with standalone Docker containers in Gen3?
Any guidance or best practice would be appreciated.

Thanks,
selvam

Re: Dynatrace Gen3 - No Alert When PostgreSQL Docker Container Goes Down

Julius_Loman — Tue, 09 Jun 2026 21:07:53 GMT

For Kubernetes workloads, you probably want to alert on your Kubernetes data, in this case on Workload and setup the workload alerts for refine them.
For standalone containers (docker/podman), I'd recommend using process availability rules (Not sure why this is in classic section in the docs, it is available in Gen3).

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Dynatrace Gen3 - No Alert When PostgreSQL Docker Container Goes Down

Re: Dynatrace Gen3 - No Alert When PostgreSQL Docker Container Goes Down