Kube Scheduler

Overview

The Kube Scheduler decides which nodes newly created pods should run on.

Why it’s Useful

Ensures workload distribution across cluster nodes.
Helps detect scheduling bottlenecks.
Identifies failed scheduling attempts.

What Users Can Do

Track scheduling latency.
Troubleshoot pods stuck in Pending state.
Verify scheduler health and performance.

Steps to Configure

Get the existing ConfigMap.

kubectl get cm opsramp-k8s-infra-metric-user-config -n <agent-installed-namespace> -o yaml

Edit the ConfigMap.

kubectl edit cm opsramp-k8s-infra-metric-user-config -n <agent-installed-namespace>

Locate the kube_scheduler section in ConfigMap.

k8s_cluster:
  enabled: true
  config:
    scrape_interval: "2m"

Update the required parameters.
Save and apply the changes.

Supported Metrics

Metric Name	Display Name
go_threads	Go threads
go_gc_duration_seconds	Go GC duration seconds
go_gc_duration_seconds	Go GC duration seconds
go_gc_duration_seconds	Go GC duration seconds
go_goroutines	Go goroutines
process_max_fds	Process max fds
process_open_fds	Process open fds
rest_client_requests	Rest client requests
scheduler_framework_extension_point_duration_seconds	Scheduler framework extension point duration seconds
scheduler_framework_extension_point_duration_seconds	Scheduler framework extension point duration seconds
scheduler_framework_extension_point_duration_seconds	Scheduler framework extension point duration seconds
scheduler_goroutines	Scheduler goroutines
scheduler_pending_pods	Scheduler pending pods
scheduler_plugin_evaluation	Scheduler plugin evaluation
scheduler_plugin_execution_duration_seconds	Scheduler plugin execution duration seconds
scheduler_plugin_execution_duration_seconds	Scheduler plugin execution duration seconds
scheduler_plugin_execution_duration_seconds	Scheduler plugin execution duration seconds
scheduler_pod_scheduling_attempts	Scheduler pod scheduling attempts
scheduler_pod_scheduling_attempts	Scheduler pod scheduling attempts
scheduler_pod_scheduling_attempts	Scheduler pod scheduling attempts
scheduler_pod_scheduling_duration_seconds	Scheduler pod scheduling duration seconds
scheduler_pod_scheduling_duration_seconds	Scheduler pod scheduling duration seconds
scheduler_pod_scheduling_duration_seconds	Scheduler pod scheduling duration seconds
scheduler_preemption_attempts	Scheduler preemption attempts
scheduler_preemption_victims	Scheduler preemption victims
scheduler_preemption_victims	Scheduler preemption victims
scheduler_preemption_victims	Scheduler preemption victims
scheduler_queue_incoming_pods	Scheduler queue incoming pods
scheduler_schedule_attempts	Scheduler schedule attempts
scheduler_scheduling_algorithm_duration_seconds	Scheduler scheduling algorithm duration seconds
scheduler_scheduling_algorithm_duration_seconds	Scheduler scheduling algorithm duration seconds
scheduler_scheduling_algorithm_duration_seconds	Scheduler scheduling algorithm duration seconds
scheduler_scheduling_attempt_duration_seconds	Scheduler scheduling attempt duration seconds
scheduler_scheduling_attempt_duration_seconds	Scheduler scheduling attempt duration seconds
scheduler_scheduling_attempt_duration_seconds	Scheduler scheduling attempt duration seconds
system_resource_availability_state	System resource availability state
ttl_after_finished_controller_job_deletion_duration_seconds	TTL after finished controller job deletion duration seconds
ttl_after_finished_controller_job_deletion_duration_seconds	TTL after finished controller job deletion duration seconds
ttl_after_finished_controller_job_deletion_duration_seconds	TTL after finished controller job deletion duration seconds
up	Up
watch_cache_capacity	Watch cache capacity
watch_cache_capacity_decrease	Watch cache capacity decrease
watch_cache_capacity_increase	Watch cache capacity increase
workqueue_adds	Workqueue adds
workqueue_depth	Workqueue depth
workqueue_longest_running_processor_seconds	Workqueue longest running processor seconds
workqueue_queue_duration_seconds	Workqueue queue duration seconds
workqueue_queue_duration_seconds	Workqueue queue duration seconds
workqueue_queue_duration_seconds	Workqueue queue duration seconds
workqueue_retries	Workqueue retries total
workqueue_unfinished_work_seconds	Workqueue unfinished work seconds
workqueue_work_duration_seconds	Workqueue work duration seconds
workqueue_work_duration_seconds	Workqueue work duration seconds
workqueue_work_duration_seconds	Workqueue work duration seconds