kube-prometheus: add alerting rules
This commit is contained in:
Frederic Branczyk
@@ -6,76 +6,259 @@ metadata:
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role: prometheus-rulefiles
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prometheus: k8s
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data:
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etcd2.rules: |+
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### General cluster availability ###
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# alert if another failed peer will result in an unavailable cluster
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ALERT InsufficientPeers
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IF count(up{job="etcd-k8s"} == 0) > (count(up{job="etcd-k8s"}) / 2 - 1)
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FOR 3m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "Etcd cluster small",
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description = "If one more etcd peer goes down the cluster will be unavailable",
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}
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### HTTP requests alerts ###
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# alert if more than 1% of requests to an HTTP endpoint have failed with a non 4xx response
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ALERT HighNumberOfFailedHTTPRequests
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IF sum by(method) (rate(etcd_http_failed_total{job="etcd-k8s", code!~"4[0-9]{2}"}[5m]))
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/ sum by(method) (rate(etcd_http_received_total{job="etcd-k8s"}[5m])) > 0.01
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "a high number of HTTP requests are failing",
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description = "{{ $value }}% of requests for {{ $labels.method }} failed on etcd instance {{ $labels.instance }}",
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}
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# alert if more than 5% of requests to an HTTP endpoint have failed with a non 4xx response
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ALERT HighNumberOfFailedHTTPRequests
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IF sum by(method) (rate(etcd_http_failed_total{job="etcd-k8s", code!~"4[0-9]{2}"}[5m]))
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/ sum by(method) (rate(etcd_http_received_total{job="etcd-k8s"}[5m])) > 0.05
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alertmanager.rules: |+
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ALERT AlertmanagerConfigInconsistent
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IF count_values by (service) ("config_hash", alertmanager_config_hash)
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/ on(service) group_left
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label_replace(prometheus_operator_alertmanager_spec_replicas, "service", "alertmanager-$1", "alertmanager", "(.*)") != 1
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FOR 5m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "a high number of HTTP requests are failing",
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description = "{{ $value }}% of requests for {{ $labels.method }} failed on etcd instance {{ $labels.instance }}",
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summary = "Alertmanager configurations are inconsistent",
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description = "The configuration of the instances of the Alertmanager cluster `{{$labels.service}}` are out of sync."
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}
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# alert if 50% of requests get a 4xx response
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ALERT HighNumberOfFailedHTTPRequests
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IF sum by(method) (rate(etcd_http_failed_total{job="etcd-k8s", code=~"4[0-9]{2}"}[5m]))
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/ sum by(method) (rate(etcd_http_received_total{job="etcd-k8s"}[5m])) > 0.5
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FOR 10m
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ALERT AlertmanagerDownOrMissing
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IF label_replace(prometheus_operator_alertmanager_spec_replicas, "job", "alertmanager-$1", "alertmanager", "(.*)")
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/ on(job) group_right
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sum by(job) (up) != 1
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FOR 5m
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LABELS {
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severity = "critical"
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "a high number of HTTP requests are failing",
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description = "{{ $value }}% of requests for {{ $labels.method }} failed with 4xx responses on etcd instance {{ $labels.instance }}",
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summary = "Alertmanager down or not discovered",
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description = "An unexpected number of Alertmanagers are scraped or Alertmanagers disappeared from discovery."
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}
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# alert if the 99th percentile of HTTP requests take more than 150ms
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ALERT HTTPRequestsSlow
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IF histogram_quantile(0.99, rate(etcd_http_successful_duration_second_bucket[5m])) > 0.15
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ALERT FailedReload
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IF alertmanager_config_last_reload_successful == 0
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "slow HTTP requests",
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description = "on ectd instance {{ $labels.instance }} HTTP requests to {{ $label.method }} are slow",
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summary = "Alertmanager configuration reload has failed",
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description = "Reloading Alertmanager's configuration has failed for {{ $labels.namespace }}/{{ $labels.pod}}."
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}
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etcd3.rules: |+
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# general cluster availability
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# alert if another failed member will result in an unavailable cluster
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ALERT InsufficientMembers
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IF count(up{job="etcd"} == 0) > (count(up{job="etcd"}) / 2 - 1)
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FOR 3m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "etcd cluster insufficient members",
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description = "If one more etcd member goes down the cluster will be unavailable",
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}
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# etcd leader alerts
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# ==================
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# alert if any etcd instance has no leader
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ALERT NoLeader
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IF etcd_server_has_leader{job="etcd"} == 0
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FOR 1m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "etcd member has no leader",
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description = "etcd member {{ $labels.instance }} has no leader",
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}
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# alert if there are lots of leader changes
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ALERT HighNumberOfLeaderChanges
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IF increase(etcd_server_leader_changes_seen_total{job="etcd"}[1h]) > 3
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "a high number of leader changes within the etcd cluster are happening",
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description = "etcd instance {{ $labels.instance }} has seen {{ $value }} leader changes within the last hour",
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}
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# gRPC request alerts
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# ===================
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# alert if more than 1% of gRPC method calls have failed within the last 5 minutes
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ALERT HighNumberOfFailedGRPCRequests
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IF sum by(grpc_method) (rate(etcd_grpc_requests_failed_total{job="etcd"}[5m]))
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/ sum by(grpc_method) (rate(etcd_grpc_total{job="etcd"}[5m])) > 0.01
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "a high number of gRPC requests are failing",
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description = "{{ $value }}% of requests for {{ $labels.grpc_method }} failed on etcd instance {{ $labels.instance }}",
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}
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# alert if more than 5% of gRPC method calls have failed within the last 5 minutes
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ALERT HighNumberOfFailedGRPCRequests
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IF sum by(grpc_method) (rate(etcd_grpc_requests_failed_total{job="etcd"}[5m]))
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/ sum by(grpc_method) (rate(etcd_grpc_total{job="etcd"}[5m])) > 0.05
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FOR 5m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "a high number of gRPC requests are failing",
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description = "{{ $value }}% of requests for {{ $labels.grpc_method }} failed on etcd instance {{ $labels.instance }}",
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}
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# alert if the 99th percentile of gRPC method calls take more than 150ms
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ALERT GRPCRequestsSlow
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IF histogram_quantile(0.99, rate(etcd_grpc_unary_requests_duration_seconds_bucket[5m])) > 0.15
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FOR 10m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "slow gRPC requests",
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description = "on etcd instance {{ $labels.instance }} gRPC requests to {{ $label.grpc_method }} are slow",
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}
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# HTTP requests alerts
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# ====================
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# alert if more than 1% of requests to an HTTP endpoint have failed within the last 5 minutes
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ALERT HighNumberOfFailedHTTPRequests
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IF sum by(method) (rate(etcd_http_failed_total{job="etcd"}[5m]))
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/ sum by(method) (rate(etcd_http_received_total{job="etcd"}[5m])) > 0.01
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "a high number of HTTP requests are failing",
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description = "{{ $value }}% of requests for {{ $labels.method }} failed on etcd instance {{ $labels.instance }}",
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}
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# alert if more than 5% of requests to an HTTP endpoint have failed within the last 5 minutes
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ALERT HighNumberOfFailedHTTPRequests
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IF sum by(method) (rate(etcd_http_failed_total{job="etcd"}[5m]))
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/ sum by(method) (rate(etcd_http_received_total{job="etcd"}[5m])) > 0.05
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FOR 5m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "a high number of HTTP requests are failing",
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description = "{{ $value }}% of requests for {{ $labels.method }} failed on etcd instance {{ $labels.instance }}",
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}
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# alert if the 99th percentile of HTTP requests take more than 150ms
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ALERT HTTPRequestsSlow
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IF histogram_quantile(0.99, rate(etcd_http_successful_duration_seconds_bucket[5m])) > 0.15
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "slow HTTP requests",
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description = "on etcd instance {{ $labels.instance }} HTTP requests to {{ $label.method }} are slow",
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}
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# etcd member communication alerts
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# ================================
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# alert if 99th percentile of round trips take 150ms
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ALERT EtcdMemberCommunicationSlow
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IF histogram_quantile(0.99, rate(etcd_network_member_round_trip_time_seconds_bucket[5m])) > 0.15
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "etcd member communication is slow",
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description = "etcd instance {{ $labels.instance }} member communication with {{ $label.To }} is slow",
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}
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# etcd proposal alerts
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# ====================
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# alert if there are several failed proposals within an hour
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ALERT HighNumberOfFailedProposals
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IF increase(etcd_server_proposals_failed_total{job="etcd"}[1h]) > 5
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "a high number of proposals within the etcd cluster are failing",
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description = "etcd instance {{ $labels.instance }} has seen {{ $value }} proposal failures within the last hour",
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}
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# etcd disk io latency alerts
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# ===========================
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# alert if 99th percentile of fsync durations is higher than 500ms
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ALERT HighFsyncDurations
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IF histogram_quantile(0.99, rate(etcd_disk_wal_fsync_duration_seconds_bucket[5m])) > 0.5
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "high fsync durations",
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description = "etcd instance {{ $labels.instance }} fync durations are high",
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}
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# alert if 99th percentile of commit durations is higher than 250ms
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ALERT HighCommitDurations
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IF histogram_quantile(0.99, rate(etcd_disk_backend_commit_duration_seconds_bucket[5m])) > 0.25
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "high commit durations",
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description = "etcd instance {{ $labels.instance }} commit durations are high",
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}
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general.rules: |+
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### Up Alerting ###
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Alert TargetDown
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IF up == 0
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "target is down",
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description = "A target of type {{ $labels.job }} is down."
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}
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### File descriptor alerts ###
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ALERT TooManyOpenFiles
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IF 100*process_open_fds / process_max_fds > 50
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "too many open file descriptors",
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description = "{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} is using {{ $value }}% of the available file/socket descriptors.",
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}
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ALERT K8STooManyOpenFiles
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IF 100*process_open_fds / process_max_fds > 80
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FOR 10m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "too many open file descriptors",
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description = "{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} is using {{ $value }}% of the available file/socket descriptors.",
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}
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instance:fd_utilization = process_open_fds / process_max_fds
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# alert if file descriptors are likely to exhaust within the next 4 hours
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@@ -87,7 +270,7 @@ data:
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}
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ANNOTATIONS {
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summary = "file descriptors soon exhausted",
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description = "{{ $labels.job }} instance {{ $labels.instance }} will exhaust in file descriptors soon",
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description = "{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} instance {{ $labels.namespace }}/{{ $labels.pod }} will exhaust in file descriptors soon",
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}
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# alert if file descriptors are likely to exhaust within the next hour
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@@ -99,34 +282,154 @@ data:
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}
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ANNOTATIONS {
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summary = "file descriptors soon exhausted",
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description = "{{ $labels.job }} instance {{ $labels.instance }} will exhaust in file descriptors soon",
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description = "{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} instance {{ $labels.namespace }}/{{ $labels.pod }} will exhaust in file descriptors soon",
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}
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### etcd proposal alerts ###
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### Contrack alerts ###
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# alert if there are several failed proposals within an hour
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ALERT HighNumberOfFailedProposals
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IF increase(etcd_server_proposal_failed_total{job="etcd"}[1h]) > 5
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# To catch the conntrack sysctl de-tuning when it happens
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ALERT ConntrackTuningMissing
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IF node_nf_conntrack_udp_timeout > 10
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FOR 10m
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LABELS {
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severity = "warning"
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severity = "warning",
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}
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ANNOTATIONS {
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summary = "a high number of failed proposals within the etcd cluster are happening",
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description = "etcd instance {{ $labels.instance }} has seen {{ $value }} proposal failures within the last hour",
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summary = "Node does not have the correct conntrack tunings",
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description = "Nodes keep un-setting the correct tunings, investigate when it happens.",
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}
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### etcd disk io latency alerts ###
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# alert if 99th percentile of fsync durations is higher than 500ms
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ALERT HighFsyncDurations
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IF histogram_quantile(0.99, rate(etcd_wal_fsync_durations_seconds_bucket[5m])) > 0.5
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ALERT ConntrackTableFull
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IF 100*node_nf_conntrack_entries / node_nf_conntrack_entries_limit > 50
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "high fsync durations",
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description = "ectd instance {{ $labels.instance }} fync durations are high",
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summary = "Number of tracked connections is near the limit",
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description = "The nf_conntrack table is {{ $value }}% full.",
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}
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ALERT ConntrackTableFull
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IF 100*node_nf_conntrack_entries / node_nf_conntrack_entries_limit > 90
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "Number of tracked connections is near the limit",
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description = "The nf_conntrack table is {{ $value }}% full.",
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}
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kube-apiserver.rules: |+
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ALERT K8SApiserverDown
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IF up{job="apiserver"} == 0
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FOR 15m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "API server unreachable",
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description = "An API server could not be scraped.",
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}
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# Disable for non HA kubernetes setups.
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ALERT K8SApiserverDown
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IF absent({job="apiserver"}) or (count by(cluster) (up{job="apiserver"} == 1) < count by(cluster) (up{job="apiserver"}))
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FOR 5m
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LABELS {
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severity = "critical"
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}
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ANNOTATIONS {
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summary = "API server unreachable",
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description = "Prometheus failed to scrape multiple API servers, or all API servers have disappeared from service discovery.",
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}
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# Some verbs excluded because they are expected to be long-lasting:
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# WATCHLIST is long-poll, CONNECT is `kubectl exec`.
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ALERT K8SApiServerLatency
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IF histogram_quantile(
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0.99,
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sum without (instance,resource) (apiserver_request_latencies_bucket{verb!~"CONNECT|WATCHLIST|WATCH"})
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) / 1e6 > 1.0
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FOR 10m
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "Kubernetes apiserver latency is high",
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description = "99th percentile Latency for {{ $labels.verb }} requests to the kube-apiserver is higher than 1s.",
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}
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kube-controller-manager.rules: |+
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ALERT K8SControllerManagerDown
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IF absent(up{job="kube-controller-manager"}) or (count by(cluster) (up{job="kube-controller-manager"} == 1) == 0)
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FOR 5m
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LABELS {
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severity = "critical",
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}
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ANNOTATIONS {
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summary = "Controller manager is down",
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description = "There is no running K8S controller manager. Deployments and replication controllers are not making progress.",
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}
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kubelet.rules: |+
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ALERT K8SNodeDown
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IF up{job="kubelet"} == 0
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FOR 1h
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LABELS {
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severity = "warning"
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}
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ANNOTATIONS {
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summary = "Kubelet cannot be scraped",
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description = "Prometheus could not scrape a {{ $labels.job }} for more than one hour",
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}
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ALERT K8SNodeNotReady
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IF kube_node_status_ready{condition="true"} == 0
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FOR 1h
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LABELS {
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severity = "warning",
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}
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ANNOTATIONS {
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summary = "Node status is NotReady",
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description = "The Kubelet on {{ $labels.node }} has not checked in with the API, or has set itself to NotReady, for more than an hour",
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}
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ALERT K8SManyNodesNotReady
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IF
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count by (cluster) (kube_node_status_ready{condition="true"} == 0) > 1
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AND
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(
|
||||
count by (cluster) (kube_node_status_ready{condition="true"} == 0)
|
||||
/
|
||||
count by (cluster) (kube_node_status_ready{condition="true"})
|
||||
) > 0.2
|
||||
FOR 1m
|
||||
LABELS {
|
||||
severity = "critical",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Many K8s nodes are Not Ready",
|
||||
description = "{{ $value }} K8s nodes (more than 10% of cluster {{ $labels.cluster }}) are in the NotReady state.",
|
||||
}
|
||||
|
||||
ALERT K8SKubeletDown
|
||||
IF absent(up{job="kubelet"}) or count by (cluster) (up{job="kubelet"} == 0) / count by (cluster) (up{job="kubelet"}) > 0.1
|
||||
FOR 1h
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Many Kubelets cannot be scraped",
|
||||
description = "Prometheus failed to scrape more than 10% of kubelets, or all Kubelets have disappeared from service discovery.",
|
||||
}
|
||||
|
||||
ALERT K8SKubeletTooManyPods
|
||||
IF kubelet_running_pod_count > 100
|
||||
LABELS {
|
||||
severity = "warning",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Kubelet is close to pod limit",
|
||||
description = "Kubelet {{$labels.instance}} is running {{$value}} pods, close to the limit of 110",
|
||||
}
|
||||
kubernetes.rules: |+
|
||||
# NOTE: These rules were kindly contributed by the SoundCloud engineering team.
|
||||
@@ -300,220 +603,36 @@ data:
|
||||
histogram_quantile(0.9,sum by (le,cluster) (scheduler_binding_latency_microseconds_bucket)) / 1e6
|
||||
cluster:scheduler_binding_latency:quantile_seconds{quantile="0.5"} =
|
||||
histogram_quantile(0.5,sum by (le,cluster) (scheduler_binding_latency_microseconds_bucket)) / 1e6
|
||||
|
||||
ALERT K8SNodeDown
|
||||
IF up{job="kubelet"} == 0
|
||||
FOR 1h
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Kubelet cannot be scraped",
|
||||
description = "Prometheus could not scrape a {{ $labels.job }} for more than one hour",
|
||||
}
|
||||
|
||||
ALERT K8SNodeNotReady
|
||||
IF kube_node_status_ready{condition="true"} == 0
|
||||
FOR 1h
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Node status is NotReady",
|
||||
description = "The Kubelet on {{ $labels.node }} has not checked in with the API, or has set itself to NotReady, for more than an hour",
|
||||
}
|
||||
|
||||
ALERT K8SManyNodesNotReady
|
||||
IF
|
||||
count by (cluster) (kube_node_status_ready{condition="true"} == 0) > 1
|
||||
AND
|
||||
(
|
||||
count by (cluster) (kube_node_status_ready{condition="true"} == 0)
|
||||
/
|
||||
count by (cluster) (kube_node_status_ready{condition="true"})
|
||||
) > 0.2
|
||||
FOR 1m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Many K8s nodes are Not Ready",
|
||||
description = "{{ $value }} K8s nodes (more than 10% of cluster {{ $labels.cluster }}) are in the NotReady state.",
|
||||
}
|
||||
|
||||
ALERT K8SKubeletNodeExporterDown
|
||||
IF up{job="node-exporter"} == 0
|
||||
FOR 15m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Kubelet node_exporter cannot be scraped",
|
||||
description = "Prometheus could not scrape a {{ $labels.job }} for more than one hour.",
|
||||
}
|
||||
|
||||
ALERT K8SKubeletDown
|
||||
IF absent(up{job="kubelet"}) or count by (cluster) (up{job="kubelet"} == 0) / count by (cluster) (up{job="kubelet"}) > 0.1
|
||||
FOR 1h
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Many Kubelets cannot be scraped",
|
||||
description = "Prometheus failed to scrape more than 10% of kubelets, or all Kubelets have disappeared from service discovery.",
|
||||
}
|
||||
|
||||
ALERT K8SApiserverDown
|
||||
IF up{job="kubernetes"} == 0
|
||||
FOR 15m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "API server unreachable",
|
||||
description = "An API server could not be scraped.",
|
||||
}
|
||||
|
||||
# Disable for non HA kubernetes setups.
|
||||
ALERT K8SApiserverDown
|
||||
IF absent({job="kubernetes"}) or (count by(cluster) (up{job="kubernetes"} == 1) < count by(cluster) (up{job="kubernetes"}))
|
||||
FOR 5m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "API server unreachable",
|
||||
description = "Prometheus failed to scrape multiple API servers, or all API servers have disappeared from service discovery.",
|
||||
}
|
||||
|
||||
kube-scheduler.rules: |+
|
||||
ALERT K8SSchedulerDown
|
||||
IF absent(up{job="kube-scheduler"}) or (count by(cluster) (up{job="kube-scheduler"} == 1) == 0)
|
||||
FOR 5m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Scheduler is down",
|
||||
description = "There is no running K8S scheduler. New pods are not being assigned to nodes.",
|
||||
}
|
||||
|
||||
ALERT K8SControllerManagerDown
|
||||
IF absent(up{job="kube-controller-manager"}) or (count by(cluster) (up{job="kube-controller-manager"} == 1) == 0)
|
||||
FOR 5m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Controller manager is down",
|
||||
description = "There is no running K8S controller manager. Deployments and replication controllers are not making progress.",
|
||||
}
|
||||
|
||||
ALERT K8SConntrackTableFull
|
||||
IF 100*node_nf_conntrack_entries / node_nf_conntrack_entries_limit > 50
|
||||
node.rules: |+
|
||||
ALERT NodeExporterDown
|
||||
IF up{job="node-exporter"} == 0
|
||||
FOR 10m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Number of tracked connections is near the limit",
|
||||
description = "The nf_conntrack table is {{ $value }}% full.",
|
||||
summary = "node-exporter cannot be scraped",
|
||||
description = "Prometheus could not scrape a node-exporter for more than 10m.",
|
||||
}
|
||||
|
||||
ALERT K8SConntrackTableFull
|
||||
IF 100*node_nf_conntrack_entries / node_nf_conntrack_entries_limit > 90
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Number of tracked connections is near the limit",
|
||||
description = "The nf_conntrack table is {{ $value }}% full.",
|
||||
}
|
||||
|
||||
# To catch the conntrack sysctl de-tuning when it happens
|
||||
ALERT K8SConntrackTuningMissing
|
||||
IF node_nf_conntrack_udp_timeout > 10
|
||||
prometheus.rules: |+
|
||||
ALERT FailedReload
|
||||
IF prometheus_config_last_reload_successful == 0
|
||||
FOR 10m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Node does not have the correct conntrack tunings",
|
||||
description = "Nodes keep un-setting the correct tunings, investigate when it happens.",
|
||||
}
|
||||
|
||||
ALERT K8STooManyOpenFiles
|
||||
IF 100*process_open_fds{job=~"kubelet|kubernetes"} / process_max_fds > 50
|
||||
FOR 10m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "{{ $labels.job }} has too many open file descriptors",
|
||||
description = "{{ $labels.node }} is using {{ $value }}% of the available file/socket descriptors.",
|
||||
summary = "Prometheus configuration reload has failed",
|
||||
description = "Reloading Prometheus' configuration has failed for {{ $labels.namespace }}/{{ $labels.pod}}."
|
||||
}
|
||||
|
||||
ALERT K8STooManyOpenFiles
|
||||
IF 100*process_open_fds{job=~"kubelet|kubernetes"} / process_max_fds > 80
|
||||
FOR 10m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "critical"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "{{ $labels.job }} has too many open file descriptors",
|
||||
description = "{{ $labels.node }} is using {{ $value }}% of the available file/socket descriptors.",
|
||||
}
|
||||
|
||||
# Some verbs excluded because they are expected to be long-lasting:
|
||||
# WATCHLIST is long-poll, CONNECT is `kubectl exec`.
|
||||
ALERT K8SApiServerLatency
|
||||
IF histogram_quantile(
|
||||
0.99,
|
||||
sum without (instance,node,resource) (apiserver_request_latencies_bucket{verb!~"CONNECT|WATCHLIST|WATCH"})
|
||||
) / 1e6 > 1.0
|
||||
FOR 10m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Kubernetes apiserver latency is high",
|
||||
description = "99th percentile Latency for {{ $labels.verb }} requests to the kube-apiserver is higher than 1s.",
|
||||
}
|
||||
|
||||
ALERT K8SApiServerEtcdAccessLatency
|
||||
IF etcd_request_latencies_summary{quantile="0.99"} / 1e6 > 1.0
|
||||
FOR 15m
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning"
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Access to etcd is slow",
|
||||
description = "99th percentile latency for apiserver to access etcd is higher than 1s.",
|
||||
}
|
||||
|
||||
ALERT K8SKubeletTooManyPods
|
||||
IF kubelet_running_pod_count > 100
|
||||
LABELS {
|
||||
service = "k8s",
|
||||
severity = "warning",
|
||||
}
|
||||
ANNOTATIONS {
|
||||
summary = "Kubelet is close to pod limit",
|
||||
description = "Kubelet {{$labels.instance}} is running {{$value}} pods, close to the limit of 110",
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user