Charts not available when a node is highly loaded and Netdata thinks it is offline | Netdata | Page 1

regal mortar Jan 10, 2025, 5:57 PM

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I have some nodes running Ubuntu 22.04 LTS that are sometimes so heavily loaded that Netdata actually thinks they are offline. However, the charts aren't visible in the Netdata UI at the very time they would be most useful. What settings are there to control the decision that a node is offline or to all charts to show for an offline node until it's removed from the room and the billing can reflect fair usage.
Tim

spiral estuary Jan 10, 2025, 6:09 PM

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Hi. Try modifying nice level. You will need to modify Netdata's systemd unit file.

regal mortar Jan 10, 2025, 6:13 PM

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Hi. Sure, that's worth a go.

regal mortar Jan 10, 2025, 6:44 PM

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OK, I've pushed out "Nice=-10" with Ansible. I'll follow up on how much difference it makes. Any thoughts on data being visible in the Cloud UI when a node is genuinely offline? Does Netdata equate offline with not-billable and, hence, not visible?

spiral estuary Jan 10, 2025, 6:53 PM

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Any thoughts on data being visible in the Cloud UI when a node is genuinely offline?

NC does not store your metrics, it queries Netdata Agents. What you can do is use the Parent/Child setup. You will be able to see historical metrics of Children via Parent when they are offline.

regal mortar Jan 10, 2025, 9:04 PM

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Ah, great. That's the part of the puzzle that I've been missing. Thank you

#Charts not available when a node is highly loaded and Netdata thinks it is offline