In Golang we have the possibility to profile specific actions in order to determine what causes an issue. For example, if our keda-operator pod is keeps getting OOM after a specific time, using profilig we can profile the heap and see what operatios taking all of this space.

Golang support many profiling options like heap, cpu, goroutines and more… (for more info check this site https://pkg.go.dev/net/http/pprof).

In KEDA we provide the option to enable profiling on each component separately by enabling it using the Helm chart and providing a port (if not enabled then it won’t work).

profiling:
  operator:
    enabled: false
    port: 8082
  metricsServer:
    enabled: false
    port: 8083
  webhooks:
    enabled: false
    port: 8084

If not using the Helm chart then you can enable the profiling on each on of components by specifying the following argument in the respective container

--profiling-bind-address=":8082"

and it will be exposed on the port you specified.

After enabling it you can port-forward or expose the service and use tool like go tool pprof in order to get profiling data.

For more info look at this document https://go.dev/blog/pprof.