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Memory dump download for Kubernetes installations

Frequent Guest

Hi , 


We run all our workloads in AKS Clusters and we have Dynatrace integrated via the Kubernetes Classic full-stack injection or Cloud-native full-stack injection. With my current setup, I am able to trigger memory dump but I am not able to download the triggered dump directly from Dynatrace. 


Upon some reading, I understand that the active gates have to be configured to enable such direct download, but I am having a hard time figuring out how I can accomplish that configuration in the Dynakube-based Kubernetes integration. I assume some configurations needed to be updated in the Dynakube to reflect the configurations outlines in


Need some help to get this set on my environment, thanks in advance.


Dynatrace Champion
Dynatrace Champion

Hi @hari-m94 ,


Please note that as of now, I do not believe memory dumps are tested by Dynatrace in Kubernetes environments. Therefore, not officially supported.


However, I believe you could add custom properties to the activegate section of the Dynakube CR, similar to:


    value: |-
[collector] DumpSupported = true
[dump] dumpDir = dump
        downloadUrl = FQDN_OF_YOUR_INGRESS:PORT


You would also need an accessible downloadUrl to retrieve the memory dump files. I believe this requires an ingress (such as a gateway with Istio) to be able to retrieve the dump from outside of the cluster:

See further Kubernetes Ingress documentation -


I've heard of reported issues, such as the following:

  • dump path not matching (eg: volume storage is/not used, so the relative path doesn't match what ActiveGate is expecting)
  • Memory dumps are a "stop-the-world" event, so they could cause liveness probes to fail, therefore K8s could kill and restart your container. This would interrupt the memory dump process.
  • Memory dumps could cause additional memory load on your container, hitting limits. Again, K8s could kill and restart your container. This would interrupt the memory dump process.
Andrew M.