{"id":9989,"date":"2023-04-28T02:10:03","date_gmt":"2023-04-28T02:10:03","guid":{"rendered":"https:\/\/www.scmgalaxy.com\/tutorials\/?p=9989"},"modified":"2023-04-28T02:10:04","modified_gmt":"2023-04-28T02:10:04","slug":"kubernetes-error-1-no-preemption-victims-found-for-incoming-pod","status":"publish","type":"post","link":"https:\/\/www.scmgalaxy.com\/tutorials\/kubernetes-error-1-no-preemption-victims-found-for-incoming-pod\/","title":{"rendered":"Kubernetes Error: 1 No preemption victims found for incoming pod"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Error<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>kubectl describe pod istiod-7957f87bcc-k6c94 -nistio-system\r\nName:             istiod-7957f87bcc-k6c94\r\nNamespace:        istio-system\r\nPriority:         0\r\nService Account:  istiod\r\nNode:             &lt;none>\r\nLabels:           app=istiod\r\n                  install.operator.istio.io\/owning-resource=unknown\r\n                  istio=pilot\r\n                  istio.io\/rev=default\r\n                  operator.istio.io\/component=Pilot\r\n                  pod-template-hash=7957f87bcc\r\n                  sidecar.istio.io\/inject=false\r\nAnnotations:      prometheus.io\/port: 15014\r\n                  prometheus.io\/scrape: true\r\n                  sidecar.istio.io\/inject: false\r\nStatus:           Pending\r\nIP:\r\nIPs:              &lt;none>\r\nControlled By:    ReplicaSet\/istiod-7957f87bcc\r\nContainers:\r\n  discovery:\r\n    Image:       docker.io\/istio\/pilot:1.16.3\r\n    Ports:       8080\/TCP, 15010\/TCP, 15017\/TCP\r\n    Host Ports:  0\/TCP, 0\/TCP, 0\/TCP\r\n    Args:\r\n      discovery\r\n      --monitoringAddr=:15014\r\n      --log_output_level=default:info\r\n      --domain\r\n      cluster.local\r\n      --keepaliveMaxServerConnectionAge\r\n      30m\r\n    Requests:\r\n      cpu:      500m\r\n      memory:   2Gi\r\n    Readiness:  http-get http:\/\/:8080\/ready delay=1s timeout=5s period=3s #success=1 #failure=3\r\n    Environment:\r\n      REVISION:                                     default\r\n      JWT_POLICY:                                   third-party-jwt\r\n      PILOT_CERT_PROVIDER:                          istiod\r\n      POD_NAME:                                     istiod-7957f87bcc-k6c94 (v1:metadata.name)\r\n      POD_NAMESPACE:                                istio-system (v1:metadata.namespace)\r\n      SERVICE_ACCOUNT:                               (v1:spec.serviceAccountName)\r\n      KUBECONFIG:                                   \/var\/run\/secrets\/remote\/config\r\n      PILOT_TRACE_SAMPLING:                         1\r\n      PILOT_ENABLE_PROTOCOL_SNIFFING_FOR_OUTBOUND:  true\r\n      PILOT_ENABLE_PROTOCOL_SNIFFING_FOR_INBOUND:   true\r\n      ISTIOD_ADDR:                                  istiod.istio-system.svc:15012\r\n      PILOT_ENABLE_ANALYSIS:                        false\r\n      CLUSTER_ID:                                   Kubernetes\r\n    Mounts:\r\n      \/etc\/cacerts from cacerts (ro)\r\n      \/var\/run\/secrets\/istio-dns from local-certs (rw)\r\n      \/var\/run\/secrets\/istiod\/ca from istio-csr-ca-configmap (ro)\r\n      \/var\/run\/secrets\/istiod\/tls from istio-csr-dns-cert (ro)\r\n      \/var\/run\/secrets\/kubernetes.io\/serviceaccount from kube-api-access-7j7hv (ro)\r\n      \/var\/run\/secrets\/remote from istio-kubeconfig (ro)\r\n      \/var\/run\/secrets\/tokens from istio-token (ro)\r\nConditions:\r\n  Type           Status\r\n  PodScheduled   False\r\nVolumes:\r\n  local-certs:\r\n    Type:       EmptyDir (a temporary directory that shares a pod's lifetime)\r\n    Medium:     Memory\r\n    SizeLimit:  &lt;unset>\r\n  istio-token:\r\n    Type:                    Projected (a volume that contains injected data from multiple sources)\r\n    TokenExpirationSeconds:  43200\r\n  cacerts:\r\n    Type:        Secret (a volume populated by a Secret)\r\n    SecretName:  cacerts\r\n    Optional:    true\r\n  istio-kubeconfig:\r\n    Type:        Secret (a volume populated by a Secret)\r\n    SecretName:  istio-kubeconfig\r\n    Optional:    true\r\n  istio-csr-dns-cert:\r\n    Type:        Secret (a volume populated by a Secret)\r\n    SecretName:  istiod-tls\r\n    Optional:    true\r\n  istio-csr-ca-configmap:\r\n    Type:      ConfigMap (a volume populated by a ConfigMap)\r\n    Name:      istio-ca-root-cert\r\n    Optional:  true\r\n  kube-api-access-7j7hv:\r\n    Type:                    Projected (a volume that contains injected data from multiple sources)\r\n    TokenExpirationSeconds:  3607\r\n    ConfigMapName:           kube-root-ca.crt\r\n    ConfigMapOptional:       &lt;nil>\r\n    DownwardAPI:             true\r\nQoS Class:                   Burstable\r\nNode-Selectors:              &lt;none>\r\nTolerations:                 node.kubernetes.io\/not-ready:NoExecute op=Exists for 300s\r\n                             node.kubernetes.io\/unreachable:NoExecute op=Exists for 300s\r\nEvents:\r\n  Type     Reason            Age                    From               Message\r\n  ----     ------            ----                   ----               -------\r\n  Warning  FailedScheduling  12m (x4 over 27m)      default-scheduler  0\/1 nodes are available: 1 Insufficient memory. preemption: 0\/1 nodes are available: 1 No preemption victims found for incoming pod.\r\n  Warning  FailedScheduling  4m58s (x3 over 8m21s)  default-scheduler  0\/1 nodes are available: 1 Insufficient cpu, 1 Insufficient memory. preemption: 0\/1 nodes are available: 1 No preemption victims found for incoming pod.<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Solution<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>Based on the output of kubectl describe pod for the istiod-7957f87bcc-k6c94 pod in the istio-system namespace, the pod is currently in a Pending state and has not been scheduled to any node due to insufficient resources on the available nodes.\r\n\r\nThe events section shows that the pod failed to schedule four times with a FailedScheduling warning. The first time it failed was due to insufficient memory, and subsequent failures were due to both insufficient CPU and memory.\r\n\r\nThe node selectors and tolerations sections show that there are no specific node selectors or tolerations defined for the pod.\r\n\r\nTo resolve this issue, you may need to increase the resources available on the existing nodes, or add new nodes to the cluster. Alternatively, you can consider lowering the resource requests of the pod or modifying the resource limits of other pods running on the same nodes to free up resources for this pod.<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The error message &#8220;0\/1 nodes are available: 1 No preemption victims found for incoming pod&#8221; indicates that the Kubernetes scheduler is unable to schedule a new pod on any of the available nodes because there are not enough resources available to meet the pod&#8217;s requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This error message usually occurs when there are not enough resources available on the nodes to meet the requirements of the pod, such as CPU, memory, or other resource requests specified in the pod&#8217;s configuration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To resolve this issue, you can try one or more of the following steps:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Check the resource requests and limits of the pod and make sure they are appropriate for the available resources on the nodes.<\/li>\n\n\n\n<li>Check the resource usage of the existing pods on the nodes and make sure there is enough free resources available for the new pod.<\/li>\n\n\n\n<li>Increase the resources available on the nodes by adding more nodes to the cluster or by upgrading the existing nodes.<\/li>\n\n\n\n<li>Enable pod preemption in the Kubernetes scheduler to allow lower priority pods to be evicted from the nodes to make room for higher priority pods.<\/li>\n\n\n\n<li>Adjust the priority of the pod to ensure it is scheduled before lower priority pods.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Once you have made the necessary changes, you can try to reschedule the pod by deleting and recreating it or by updating its configuration.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Error Solution The error message &#8220;0\/1 nodes are available: 1 No preemption victims found for incoming pod&#8221; indicates that the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9989","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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