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Minimal ingestion profile for Prometheus metrics in Azure Monitor

  • Άρθρο

Azure monitor metrics addon collects number of Prometheus metrics by default. Minimal ingestion profile is a setting that helps reduce ingestion volume of metrics, as only metrics used by default dashboards, default recording rules & default alerts are collected. This article describes how this setting is configured. This article also lists metrics collected by default when minimal ingestion profile is enabled. You can modify collection to enable collecting more metrics, as specified below.

Note

For addon based collection, Minimal ingestion profile setting is enabled by default.

Following targets are enabled/ON by default - meaning you don't have to provide any scrape job configuration for scraping these targets, as metrics addon will scrape these targets automatically by default

  • cadvisor (job=cadvisor)
  • nodeexporter (job=node)
  • kubelet (job=kubelet)
  • kube-state-metrics (job=kube-state-metrics)
  • controlplane-apiserver (job=controlplane-apiserver)
  • controlplane-etcd (job=controlplane-etcd)

Following targets are available to scrape, but scraping isn't enabled (disabled/OFF) by default - meaning you don't have to provide any scrape job configuration for scraping these targets but they're disabled/OFF by default and you need to turn ON/enable scraping for these targets using ama-metrics-settings-configmap under default-scrape-settings-enabled section

  • core-dns (job=kube-dns)
  • kube-proxy (job=kube-proxy)
  • api-server (job=kube-apiserver)
  • controlplane-cluster-autoscaler (job=controlplane-cluster-autoscaler)
  • controlplane-kube-scheduler (job=controlplane-kube-scheduler)
  • controlplane-kube-controller-manager (job=controlplane-kube-controller-manager)

Note

The default scrape frequency for all default targets and scrapes is 30 seconds. You can override it per target using the ama-metrics-settings-configmap under default-targets-scrape-interval-settings section. The control plane targets have a fixed scrape interval of 30 seconds and cannot be overwritten. You can read more about four different configmaps used by metrics addon here

Configuration setting

The setting default-targets-metrics-keep-list.minimalIngestionProfile="true" is enabled by default on the metrics addon. You can specify this setting in ama-metrics-settings-configmap under default-targets-metrics-keep-list section.

Scenarios

There are four scenarios where you may want to customize this behavior:

Ingest only minimal metrics per default target.
This is the default behavior with the setting default-targets-metrics-keep-list.minimalIngestionProfile="true". Only metrics listed below are ingested for each of the default targets.

Ingest a few other metrics for one or more default targets in addition to minimal metrics.
Keep minimalIngestionProfile="true" and specify the appropriate keeplistRegexes.* specific to the target, for example keeplistRegexes.coreDns="X``Y". X,Y is merged with default metric list for the target and then ingested. ``

Ingest only a specific set of metrics for a target, and nothing else.
Set minimalIngestionProfile="false" and specify the appropriate default-targets-metrics-keep-list.="X``Y" specific to the target in the ama-metrics-settings-configmap.

Ingest all metrics scraped for the default target.
Set minimalIngestionProfile="false" and don't specify any default-targets-metrics-keep-list.<targetname> for that target. Changing to false can increase metric ingestion volume by a factor per target.

Note

up metric is not part of the allow/keep list because it is ingested per scrape, per target, regardless of keepLists specified. This metric is not actually scraped but produced as result of scrape operation by the metrics addon. For histograms and summaries, each series has to be included explicitly in the list (*bucket, *sum, *count series).

Minimal ingestion for default ON targets

The following metrics are allow-listed with minimalingestionprofile=true for default ON targets. The below metrics are collected by default as these targets are scraped by default.

kubelet

  • kubelet_volume_stats_used_bytes
  • kubelet_node_name
  • kubelet_running_pods
  • kubelet_running_pod_count
  • kubelet_running_containers
  • kubelet_running_container_count
  • volume_manager_total_volumes
  • kubelet_node_config_error
  • kubelet_runtime_operations_total
  • kubelet_runtime_operations_errors_total
  • kubelet_runtime_operations_duration_seconds kubelet_runtime_operations_duration_seconds_bucket kubelet_runtime_operations_duration_seconds_sum kubelet_runtime_operations_duration_seconds_count
  • kubelet_pod_start_duration_seconds kubelet_pod_start_duration_seconds_bucket kubelet_pod_start_duration_seconds_sum kubelet_pod_start_duration_seconds_count
  • kubelet_pod_worker_duration_seconds kubelet_pod_worker_duration_seconds_bucket kubelet_pod_worker_duration_seconds_sum kubelet_pod_worker_duration_seconds_count
  • storage_operation_duration_seconds storage_operation_duration_seconds_bucket storage_operation_duration_seconds_sum storage_operation_duration_seconds_count
  • storage_operation_errors_total
  • kubelet_cgroup_manager_duration_seconds kubelet_cgroup_manager_duration_seconds_bucket kubelet_cgroup_manager_duration_seconds_sum kubelet_cgroup_manager_duration_seconds_count
  • kubelet_pleg_relist_duration_seconds kubelet_pleg_relist_duration_seconds_bucket kubelet_pleg_relist_duration_sum kubelet_pleg_relist_duration_seconds_count
  • kubelet_pleg_relist_interval_seconds kubelet_pleg_relist_interval_seconds_bucket kubelet_pleg_relist_interval_seconds_sum kubelet_pleg_relist_interval_seconds_count
  • rest_client_requests_total
  • rest_client_request_duration_seconds rest_client_request_duration_seconds_bucket rest_client_request_duration_seconds_sum rest_client_request_duration_seconds_count
  • process_resident_memory_bytes
  • process_cpu_seconds_total
  • go_goroutines
  • kubelet_volume_stats_capacity_bytes
  • kubelet_volume_stats_available_bytes
  • kubelet_volume_stats_inodes_used
  • kubelet_volume_stats_inodes
  • kubernetes_build_info"

cadvisor

  • container_spec_cpu_period
  • container_spec_cpu_quota
  • container_cpu_usage_seconds_total
  • container_memory_rss
  • container_network_receive_bytes_total
  • container_network_transmit_bytes_total
  • container_network_receive_packets_total
  • container_network_transmit_packets_total
  • container_network_receive_packets_dropped_total
  • container_network_transmit_packets_dropped_total
  • container_fs_reads_total
  • container_fs_writes_total
  • container_fs_reads_bytes_total
  • container_fs_writes_bytes_total
  • container_memory_working_set_bytes
  • container_memory_cache
  • container_memory_swap
  • container_cpu_cfs_throttled_periods_total
  • container_cpu_cfs_periods_total
  • container_memory_usage_bytes
  • kubernetes_build_info"

kube-state-metrics

  • kube_node_status_capacity
  • kube_job_status_succeeded
  • kube_job_spec_completions
  • kube_daemonset_status_desired_number_scheduled
  • kube_daemonset_status_number_ready
  • kube_deployment_spec_replicas
  • kube_deployment_status_replicas_ready
  • kube_pod_container_status_last_terminated_reason
  • kube_node_status_condition
  • kube_pod_container_status_restarts_total
  • kube_pod_container_resource_requests
  • kube_pod_status_phase
  • kube_pod_container_resource_limits
  • kube_node_status_allocatable
  • kube_pod_info
  • kube_pod_owner
  • kube_resourcequota
  • kube_statefulset_replicas
  • kube_statefulset_status_replicas
  • kube_statefulset_status_replicas_ready
  • kube_statefulset_status_replicas_current
  • kube_statefulset_status_replicas_updated
  • kube_namespace_status_phase
  • kube_node_info
  • kube_statefulset_metadata_generation
  • kube_pod_labels
  • kube_pod_annotations
  • kube_horizontalpodautoscaler_status_current_replicas
  • kube_horizontalpodautoscaler_status_desired_replicas
  • kube_horizontalpodautoscaler_spec_min_replicas
  • kube_horizontalpodautoscaler_spec_max_replicas
  • kube_node_status_condition
  • kube_node_spec_taint
  • kube_pod_container_status_waiting_reason
  • kube_job_failed
  • kube_job_status_start_time
  • kube_deployment_spec_replicas
  • kube_deployment_status_replicas_available
  • kube_deployment_status_replicas_updated
  • kube_job_status_active
  • kubernetes_build_info
  • kube_pod_container_info
  • kube_replicaset_owner
  • kube_resource_labels (ex - kube_pod_labels, kube_deployment_labels)
  • kube_resource_annotations (ex - kube_pod_annotations, kube_deployment_annotations)

node-exporter (linux)

  • node_cpu_seconds_total
  • node_memory_MemAvailable_bytes
  • node_memory_Buffers_bytes
  • node_memory_Cached_bytes
  • node_memory_MemFree_bytes
  • node_memory_Slab_bytes
  • node_memory_MemTotal_bytes
  • node_netstat_Tcp_RetransSegs
  • node_netstat_Tcp_OutSegs
  • node_netstat_TcpExt_TCPSynRetrans
  • node_load1``node_load5
  • node_load15
  • node_disk_read_bytes_total
  • node_disk_written_bytes_total
  • node_disk_io_time_seconds_total
  • node_filesystem_size_bytes
  • node_filesystem_avail_bytes
  • node_filesystem_readonly
  • node_network_receive_bytes_total
  • node_network_transmit_bytes_total
  • node_vmstat_pgmajfault
  • node_network_receive_drop_total
  • node_network_transmit_drop_total
  • node_disk_io_time_weighted_seconds_total
  • node_exporter_build_info
  • node_time_seconds
  • node_uname_info"

controlplane-apiserver

  • apiserver_request_total
  • apiserver_cache_list_fetched_objects_total
  • apiserver_cache_list_returned_objects_total
  • apiserver_flowcontrol_demand_seats_average
  • apiserver_flowcontrol_current_limit_seats
  • apiserver_request_sli_duration_seconds_bucket
  • apiserver_request_sli_duration_seconds_count
  • apiserver_request_sli_duration_seconds_sum
  • process_start_time_seconds
  • apiserver_request_duration_seconds_bucket
  • apiserver_request_duration_seconds_count
  • apiserver_request_duration_seconds_sum
  • apiserver_storage_list_fetched_objects_total
  • apiserver_storage_list_returned_objects_total
  • apiserver_current_inflight_requests

controlplane-etcd

  • etcd_server_has_leader
  • rest_client_requests_total
  • etcd_mvcc_db_total_size_in_bytes
  • etcd_mvcc_db_total_size_in_use_in_bytes
  • etcd_server_slow_read_indexes_total
  • etcd_server_slow_apply_total
  • etcd_network_client_grpc_sent_bytes_total
  • etcd_server_heartbeat_send_failures_total

Minimal ingestion for default OFF targets

The following are metrics that are allow-listed with minimalingestionprofile=true for default OFF targets. These metrics are not collected by default as these targets are not scraped by default (due to being OFF by default). You can turn ON scraping for these targets using default-scrape-settings-enabled.<target-name>=true' using ama-metrics-settings-configmap under default-scrape-settings-enabled section.

core-dns

  • coredns_build_info
  • coredns_panics_total
  • coredns_dns_responses_total
  • coredns_forward_responses_total
  • coredns_dns_request_duration_seconds coredns_dns_request_duration_seconds_bucket coredns_dns_request_duration_seconds_sum coredns_dns_request_duration_seconds_count
  • coredns_forward_request_duration_seconds coredns_forward_request_duration_seconds_bucket coredns_forward_request_duration_seconds_sum coredns_forward_request_duration_seconds_count
  • coredns_dns_requests_total
  • coredns_forward_requests_total
  • coredns_cache_hits_total
  • coredns_cache_misses_total
  • coredns_cache_entries
  • coredns_plugin_enabled
  • coredns_dns_request_size_bytes coredns_dns_request_size_bytes_bucket coredns_dns_request_size_bytes_sum coredns_dns_request_size_bytes_count
  • coredns_dns_response_size_bytes coredns_dns_response_size_bytes_bucket coredns_dns_response_size_bytes_sum coredns_dns_response_size_bytes_count
  • coredns_dns_response_size_bytes coredns_dns_response_size_bytes_bucket coredns_dns_response_size_bytes_sum coredns_dns_response_size_bytes_count
  • process_resident_memory_bytes
  • process_cpu_seconds_total
  • go_goroutines
  • kubernetes_build_info"

kube-proxy

  • kubeproxy_sync_proxy_rules_duration_seconds kubeproxy_sync_proxy_rules_duration_seconds_bucket kubeproxy_sync_proxy_rules_duration_seconds_sum kubeproxy_sync_proxy_rules_duration_seconds_count kubeproxy_network_programming_duration_seconds
  • kubeproxy_network_programming_duration_seconds kubeproxy_network_programming_duration_seconds_bucket kubeproxy_network_programming_duration_seconds_sum kubeproxy_network_programming_duration_seconds_count rest_client_requests_total
  • rest_client_request_duration_seconds rest_client_request_duration_seconds_bucket rest_client_request_duration_seconds_sum rest_client_request_duration_seconds_count
  • process_resident_memory_bytes
  • process_cpu_seconds_total
  • go_goroutines
  • kubernetes_build_info"

api-server

  • apiserver_request_duration_seconds apiserver_request_duration_seconds_bucket apiserver_request_duration_seconds_sum apiserver_request_duration_seconds_count
  • apiserver_request_total
  • workqueue_adds_total``workqueue_depth
  • workqueue_queue_duration_seconds workqueue_queue_duration_seconds_bucket workqueue_queue_duration_seconds_sum workqueue_queue_duration_seconds_count
  • process_resident_memory_bytes
  • process_cpu_seconds_total
  • go_goroutines
  • kubernetes_build_info"

windows-exporter (job=windows-exporter)

  • windows_system_system_up_time
  • windows_cpu_time_total
  • windows_memory_available_bytes
  • windows_os_visible_memory_bytes
  • windows_memory_cache_bytes
  • windows_memory_modified_page_list_bytes
  • windows_memory_standby_cache_core_bytes
  • windows_memory_standby_cache_normal_priority_bytes
  • windows_memory_standby_cache_reserve_bytes
  • windows_memory_swap_page_operations_total
  • windows_logical_disk_read_seconds_total
  • windows_logical_disk_write_seconds_total
  • windows_logical_disk_size_bytes
  • windows_logical_disk_free_bytes
  • windows_net_bytes_total
  • windows_net_packets_received_discarded_total
  • windows_net_packets_outbound_discarded_total
  • windows_container_available
  • windows_container_cpu_usage_seconds_total
  • windows_container_memory_usage_commit_bytes
  • windows_container_memory_usage_private_working_set_bytes
  • windows_container_network_receive_bytes_total
  • windows_container_network_transmit_bytes_total

kube-proxy-windows (job=kube-proxy-windows)

  • kubeproxy_sync_proxy_rules_duration_seconds
  • kubeproxy_sync_proxy_rules_duration_seconds_bucket
  • kubeproxy_sync_proxy_rules_duration_seconds_sum
  • kubeproxy_sync_proxy_rules_duration_seconds_count
  • rest_client_requests_total
  • rest_client_request_duration_seconds
  • rest_client_request_duration_seconds_bucket
  • rest_client_request_duration_seconds_sum
  • rest_client_request_duration_seconds_count
  • process_resident_memory_bytes
  • process_cpu_seconds_total
  • go_goroutines

controlplane-cluster-autoscaler

  • rest_client_requests_total
  • cluster_autoscaler_last_activity
  • cluster_autoscaler_cluster_safe_to_autoscale
  • cluster_autoscaler_scale_down_in_cooldown
  • cluster_autoscaler_scaled_up_nodes_total
  • cluster_autoscaler_unneeded_nodes_count
  • cluster_autoscaler_unschedulable_pods_count
  • cluster_autoscaler_nodes_count
  • cloudprovider_azure_api_request_errors
  • cloudprovider_azure_api_request_duration_seconds_bucket
  • cloudprovider_azure_api_request_duration_seconds_count

controlplane-kube-scheduler

  • scheduler_pending_pods
  • scheduler_unschedulable_pods
  • scheduler_pod_scheduling_attempts
  • scheduler_queue_incoming_pods_total
  • scheduler_preemption_attempts_total
  • scheduler_preemption_victims
  • scheduler_scheduling_attempt_duration_seconds
  • scheduler_schedule_attempts_total
  • scheduler_pod_scheduling_duration_seconds

controlplane-kube-controller-manager

  • rest_client_request_duration_seconds
  • rest_client_requests_total
  • workqueue_depth

Next steps