Calculate cluster uptime percentage

[Shubham Shrivastav]

Hi all,

I have a two-node cluster that I'm trying to monitor.

We send a custom metric on individual nodes
# HELP platform_uptime_state  Overall platform status is 1 when up, 0 otherwise
# TYPE platform_uptime_state gauge
platform_uptime_state 1

The cluster is expected to be UP when at least one of the nodes has platform_uptime_state set to 1.

I need to calculate the cluster uptime percent since the cluster was started, but I'm not able to formulate a query.

Any help is appreciated!

TIA,
Shubham

[Ben Kochie]

avg_over_time(platform_uptime_state[1h]) * 100

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[Shubham Shrivastav]

Thanks!

But avg_over_time(platform_uptime_state[1h]) * 100  gives me uptime for one node. 

I need to check uptime for the cluster (two nodes). Clustered nodes have the same environment_id label.

I use sum by (environment_id) (platform_uptime_state) to track the number of nodes connected.

I thought I could setup a formula like:
cluster_uptime % = 1 - ( total seconds when both nodes were down / total seconds both nodes were connected (up/down) ) * 100

Is that possible?

Also, I have some custom metrics coming in: https://pastebin.com/sdFcNucA

The cluster is expected to be up when at least one of these nodes is up.