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Is there any way that we can monitor persistant storage of openshift docker containers, other then with an agent? Our environment is to bug to license more than 250+ agents

 
3 REPLIES 3

martin_et2
Inactive

Hi Avin, I've seen you've cross-posted your request here: https://answers.dynatrace.com/questions/178770/view.html. Are you using AppMon or Dynatrace? Can you please provide more detail on the issue?

Hi Martin,

We are using Appmon.

On average there is about 200+ containers that are running. Not all of these have a java agent running on them. Due to this there is no visibility of the disk usage of these containers.

martin_et2
Inactive

If you want to have usage data in Dynatrace, you'll to have these collected by an agent. Not necessarily a Java agent, -- a host agent may solve this problem for you. @Patrick T.? If the data does not have to be analyzed in AppMon, and if you're only interested in disk usage, the following thread may help: http://stackoverflow.com/questions/26753087/docker-how-to-analyze-a-containers-disk-usage. I also suggest you look at Heapster. According to this overview, Heapster supports gathering disk metrics at the Pod level (not quite at the container level, but pretty close): https://github.com/kubernetes/heapster/blob/master/docs/storage-schema.md. This makes sense, as a Pod acts as a "virtual host" in Kubernetes-based platforms and this is where a container gets its storage from.