You don't require to sum by a node when you are already querying with exact
labels since I expect the output to be one.
BTW, try with *container_memory_usage_bytes *instead of
*container_memory_working_set_bytes*
On Wednesday, September 9, 2020 at 7:28:49 PM UTC+5:30 Anoop wrote:
> Hi,
>
> I am using Prometheus metric "container_memory_working_set_bytes" to
> display the memory usage graph in %. However, it is showing a higher value
> than what I can see when I use the linux command "free -h".
>
> The actual usage using linux command:
> [image: memory_linux.JPG]
>
> Based on this, it is actually taking less than 19%.
>
> *Now I am using below query to get the % value for memory usage:*
> sum by (node)
> (container_memory_working_set_bytes{id="/",node="test-instance-e1"}) / sum
> by (node) (machine_memory_bytes{node=" test-instance-e1"}) * 100
>
> But, this is showing 41%, which is not correct.
>
> Can someone please guide me if there is any mistake in the Prometheus
> query or if I can usage some other metrics/query to get the current memory
> usage?
>
> Thank You,
> Anoop
>
>
>
>
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