Child node logs are unavailable on Parent when Child is offline

Help
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1

Problem/Question

Child node logs are unavailable on Parent when Child is offline.

I have successfully configured multiple child nodes streaming to a single parent. It is functioning as expected. Clicking on the “Logs” tab in Netdata, I am able to see in realtime the systemd logs of the parent and all children. This is awesome.

However, if I take a child offline and refresh the “Logs” tab, the child nodes logs are no longer available for viewing. A major use case (for us) in streaming the logs from child → parent is to assist in root cause analysis of child node failures.

Relevant docs you followed/actions you took to solve the issue

Environment/Browser/Agent’s version etc

  • Parent: v1.45.5
  • Children: v1.47.5

What I expected to happen

When the child node goes offline, I am still able to see the historical systemd logs for the offline child via the parent node dashboard.

2

Hi, @corymosiman12. That is how it works - You access child node logs through the parent node. Child nodes do not directly stream or send their host logs to the parent.

3

To add to this, if you want to have logs available in another location, for example for ephemeral nodes, you can follow this guide: Passive journal centralization with encryption using self-signed certificates | Learn Netdata.