[monitoring][Kubernetes][Prometheus] 자원 정보

cpu

• `kubectl top pod
  • 의미
    • usage of cores for pod in kubernetes
    • 코어 구분 불가능
  • 단위
    • millisecond
• container_cpu_usage_seconds_total
  • 의미
    • cumulative usage of cores for container in prometheus
    • 코어 구분 불가능
  • 단위
    • nanosecond
• kubevirt_vmi_vcpu_seconds
  • 의미
    • cumulative usage of core for vm in prometheus
    • 코어 구분 가능
  • 단위
    • nanosecond
• node_namespace_pod_container:container_cpu_usage_seconds_total:sum_irate
  • 의미
    • usage of cores for container in prometheus
    • container_cpu_usage_seconds_total를 irate 해서 node/namespace/pod/container label로 sum한 값
  • 단위
    • nanosecond
• cluster:namespace:pod_cpu:active:kube_pod_container_resource_limits
  • 의미
    • number of limits cores for a pod in prometheus

memory

• kubectl top pod
  • 의미
    • usage of memory for pod in kubernetes
  • 단위
    • megabyte
• container_memory_usage_bytes
  • 의미
    • usage of memory for container in prometheus
  • 단위
    • byte
• kubevirt_vmi_memory_resident_bytes
  • 의미
    • usage of memory for vm in prometheus
  • 단위
    • byte
• cluster:namespace:pod_memory:active:kube_pod_container_resource_limits
  • 의미
    • limits memory for a pod in prometheus