前言 k8s集群中,有pod出现了 Affinity ,使用 kubectl describe pod 命令,发现了报错2 node(s) didn't match Pod's node affinity. 复制代码 Warning FailedScheduling<unknown>default-scheduler0/2nodesareavailable:1node(s) didn't match node selector, 1 node(s) had taints that the pod didn't tolerate...
首先,我们需要理解 Node Affinity/Selector 的基本原理。Node Affinity/Selector 是一种基于标签的选择器,它会根据节点的 label 属性进行匹配。例如,如果我们设置了 Node Affinity 为 "node-role.kubernetes.io/master",则只有具有 "master" 标签的节点才能运行 Pod。如果一个 Pod 与 Node Affinity 中的标签不匹配...
Pod 是 Kubernetes 中一个运行在一个命名空间下的所有容器的集合,而节点 affinity 是指在同一个 Pod 中,容器之间可能会被绑定到同一个或多个节点上,而 selector 则是指用于选择 Pod 中容器的特定条件。 当我们遇到 didn’t match pod’s node affinity/selector 的问题时,实际上是在说容器没有被正确地绑定...
kubectl describe pod istio-ingressgateway-564b5ffdf7-wj722 -n istio-system Warning FailedScheduling 3m25s (x50 over 48m) default-scheduler 0/1 nodes are available: 1 node(s) didn't match Pod's node affinity. [ ] Docs [x ] Installation [ x] Networking [ ] Performance and Scalability [ ...
1、0/3 nodes are available: 1 node(s) didn't have free ports for the requested pod ports, 2 node(s) didn't match Pod's node affinity/selector2、1 node(s) had taint {node-role.kubernetes.io/master: }, that the pod didn't tolerate, 1 node(s) had taint {node.kubernetes.io/un...
pod.spec.affinity.nodeAffinity preferredDuringSchedulingIgnoredDuringExecution:软策略 软策略是偏向于,更想(不)落在某个节点上,但如果实在没有,落在其他节点也可以 requiredDuringSchedulingIgnoredDuringExecution:硬策略 硬策略是必须(不)落在指定的节点上,如果不符合条件,则一直处于Pending状态 ...
(s) didn't match pod affinity/anti-affinity, 1 node(s) didn't satisfy existing pods anti-affinity rules, 1 node(s) had taint {node.kubernetes.io/not-ready: }, that the pod didn't tolerate, 1 node(s) had volume node affinity conflict, 1 node(s) were unschedulable, 4 Ins...
NodeAffinity 意为 Node 亲和性的调度策略,是用于替换 NodeSelector 的全新调度策略 。目前有两种节点亲和性表达。 - RequiredDuringSchedulinglgnoredDuringExecution:必须满足指定的规则才可以调度 Pod到Node上(功能与nodeSelector很像,但是使用的是不同的语法)相当于硬限制。
NodeAffinity节点亲和性,是Pod上定义的一种属性,使Pod能够按我们的要求调度到某个Node上,而Taints则恰恰相反,它可以让Node拒绝运行Pod,甚至驱逐Pod。 Taints(污点)是Node的一个属性,设置了Taints(污点)后,因为有了污点,所以Kubernetes是不会将Pod调度到这个Node上的, 于是Kubernetes就给Pod设置了个属性Tolerations(容忍...
'snodeaffinity/selector,1node(s)hadtaint{node.kubernetes.io/disk-pressure:},thatthepoddidn'ttolerate.Warning FailedScheduling 17m default-scheduler 0/2 nodes are available:1node(s)didn'tmatchPod'snodeaffinity/selector,1node(s)hadtaint{node.kubernetes.io/disk-pressure:},thatth...