Yeah I just checked relabelling .I need only few metrics and labels like
> the ones below.
> ex.container_memory_usage_bytes
> container_memory_usage_bytes
> container_cpu_usage_seconds_total
>
So I have more metrics to be dropped. I don't want to include(to be
dropped metrics) in my prometheus.yml file.
So is there a way to keep only what I need and drop other metrics?
An example would help in understanding relabelling better.
Yes, I'm monitoring containers per host in grafana using variables.
And a query like only shows the top 20 containers exceeding the
threshold value of CPU usage and sends an alert.
This is what I'm planning to do.
>
>
> On Thursday, April 16, 2020 at 12:39:24 PM UTC+5:30, Brian Candler wrote:
>>
>> > So can Prometheus handle so much load and monitor each container?
>>
>> In short yes, although the important figure is the total number of
>> *metrics* (servers x containers-per-server x metrics-per-container), and
>> this will affect how much resource you need to throw at your prometheus
>> server. If it's too much, you may choose to filter the metrics you ingest
>> to just the ones of interest, using metric relabelling.
>>
>> Assuming you are using a modern version of prometheus (2.14 or later)
>> then the web interface on port 9090 will tell you the stats you need to
>> know, under Status > Runtime & Build Information.
>>
>> As for grafana "hanging": you probably need to configure your dashboards
>> to select a small enough subset of timeseries up-front, e.g. using
>> dashboard variables. If you run an initial query which returns thousands
>> of timeseries, it will indeed take an extremely long time to (a) return the
>> results from prometheus, and (b) render them.
>>
>
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