Hi, Janaka,
Could you show how you got it working exactly? I tried setting everything
up according to the documentation proposed in the PR, but it's a bit
unclear how the endpoint should be structured.
My steps:
- Enabled custom metrics on the cluster
- Created an endpoint on my application that returns the number of open
connections
- Created this exact ConfigMap:
apiVersion: v1
kind: ConfigMap
metadata:
name: cm-config
data:
# Use Prometheus structure, see
https://github.com/google/cadvisor/blob/master/docs/application_metrics.md
definition.json: "{\"endpoint\" : \"http://localhost:8443/metrics\";,
{\"metrics_config\" : [{\"name\" : \"connections\", \"metric_type\" :
\"gauge\", \"data_type\" : \"int\", \"polling_frequency\" : 10, \"units\" :
\"number of active connections\"}]}}"
- Mapped the hostPort and containerPort in the RC
- Mounted the ConfigMap in my ReplicationController to
/etc/custom-metrics
- Added this exact annotation to my HPA:
alpha/target.custom-metrics.podautoscaler.kubernetes.io:
'{"items":[{"name":"connections",
"value": "1000"}]}'
However, the HPA is unable to get my custom metrics. I also couldn't find
any way to debug the setup, all I see is 'FailedGetCustomMetrics metrics
obtained for 0/1 of pods' when I check the HPA events.
Cheers,
Sander
On Wednesday, May 4, 2016 at 6:17:50 PM UTC+2, Janaka Bandara wrote:
>
> Hi Jerzy,
>
> Thanks!
> I tried the approach in the PR and it worked fine.
>
>
> (I found the same links a few days ago from a different source, but could
> not update this thread on time.)
>
>
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