[K8S：命令执行：权限异常：解决篇]：通过更新kubeconfig配置相关信息
文章目录
- 一：场景复现：
- 1.1：关键信息：
- 1.2：全异常日志输出：
- 二：解决流程：
- 2.1：更新 kubeconfig：
- 2.1.1：执行命令：
- 2.2：再次执行之前的异常命令：
- 2.3：k8s配置操作config相关命令：
- 2.4：重新执行之前操作失效命令：
- 2.5：[解决]：重新启动机器后发现kubectl apply -f相关命令又失效无权限相关：
- 2.5.1：异常日志显示：
- 2.5.2：解决方式：执行export KUBECONFIG=/root/.kube/config / chmod g-r /root/.kube/config
一：场景复现：
1.1：关键信息：
执行K8S相关命令显示关键信息
Name: "calico-config", Namespace: "kube-system"
from server for: "calico.yaml": configmaps "calico-config" is forbidden: User "system:node:vboxnode3ccccccttttttchenyang" cannot ge API group "" in the namespace "kube-system": no relationship found between node 'vboxnode3ccccccttttttchenyang' and this object
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "bgpconfigurations.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "bgpconfigurations.crd.projectcalico.org" is forbiddnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "bgppeers.crd.projectcalico.org", Namespace: ""
1.2：全异常日志输出：
[root@vboxnode3ccccccttttttchenyang ~]# kubectl apply -f calico.yaml
^[[Aerror parsing calico.yaml: error converting YAML to JSON: yaml: line 153: found character that cannot start any token
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "/v1, Resource=configmaps", GroupVersionKind: "/v1, Kind=ConfigMap"
Name: "calico-config", Namespace: "kube-system"
from server for: "calico.yaml": configmaps "calico-config" is forbidden: User "system:node:vboxnode3ccccccttttttchenyang" cannot ge API group "" in the namespace "kube-system": no relationship found between node 'vboxnode3ccccccttttttchenyang' and this object
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "bgpconfigurations.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "bgpconfigurations.crd.projectcalico.org" is forbiddnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "bgppeers.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "bgppeers.crd.projectcalico.org" is forbidden: User ccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "blockaffinities.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "blockaffinities.crd.projectcalico.org" is forbiddende3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "caliconodestatuses.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "caliconodestatuses.crd.projectcalico.org" is forbidxnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scop
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "clusterinformations.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "clusterinformations.crd.projectcalico.org" is forbioxnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster sco
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "felixconfigurations.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "felixconfigurations.crd.projectcalico.org" is forbioxnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster sco
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "globalnetworkpolicies.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "globalnetworkpolicies.crd.projectcalico.org" is forvboxnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster s
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "globalnetworksets.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "globalnetworksets.crd.projectcalico.org" is forbiddnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "hostendpoints.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "hostendpoints.crd.projectcalico.org" is forbidden: 3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "ipamblocks.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "ipamblocks.crd.projectcalico.org" is forbidden: Useccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "ipamconfigs.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "ipamconfigs.crd.projectcalico.org" is forbidden: Uscccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "ipamhandles.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "ipamhandles.crd.projectcalico.org" is forbidden: Uscccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "ippools.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "ippools.crd.projectcalico.org" is forbidden: User "cttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "ipreservations.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "ipreservations.crd.projectcalico.org" is forbidden:e3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "kubecontrollersconfigurations.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "kubecontrollersconfigurations.crd.projectcalico.orgem:node:vboxnode3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the c
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "networkpolicies.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "networkpolicies.crd.projectcalico.org" is forbiddende3ccccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "apiextensions.k8s.io/v1, Resource=customresourcedefinitions", GroupVersionKind: "apiextensions.k8s.io/v1, Kind=CustomRes
Name: "networksets.crd.projectcalico.org", Namespace: ""
from server for: "calico.yaml": customresourcedefinitions.apiextensions.k8s.io "networksets.crd.projectcalico.org" is forbidden: Uscccccttttttchenyang" cannot get resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "rbac.authorization.k8s.io/v1, Resource=clusterroles", GroupVersionKind: "rbac.authorization.k8s.io/v1, Kind=ClusterRole"
Name: "calico-kube-controllers", Namespace: ""
from server for: "calico.yaml": clusterroles.rbac.authorization.k8s.io "calico-kube-controllers" is forbidden: User "system:node:vbg" cannot get resource "clusterroles" in API group "rbac.authorization.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "rbac.authorization.k8s.io/v1, Resource=clusterrolebindings", GroupVersionKind: "rbac.authorization.k8s.io/v1, Kind=Clust
Name: "calico-kube-controllers", Namespace: ""
from server for: "calico.yaml": clusterrolebindings.rbac.authorization.k8s.io "calico-kube-controllers" is forbidden: User "system:chenyang" cannot get resource "clusterrolebindings" in API group "rbac.authorization.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "rbac.authorization.k8s.io/v1, Resource=clusterroles", GroupVersionKind: "rbac.authorization.k8s.io/v1, Kind=ClusterRole"
Name: "calico-node", Namespace: ""
from server for: "calico.yaml": clusterroles.rbac.authorization.k8s.io "calico-node" is forbidden: User "system:node:vboxnode3ccccct resource "clusterroles" in API group "rbac.authorization.k8s.io" at the cluster scope
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "rbac.authorization.k8s.io/v1, Resource=clusterrolebindings", GroupVersionKind: "rbac.authorization.k8s.io/v1, Kind=Clust
Name: "calico-node", Namespace: ""
from server for: "calico.yaml": clusterrolebindings.rbac.authorization.k8s.io "calico-node" is forbidden: User "system:node:vboxnodnnot get resource "clusterrolebindings" in API group "rbac.authorization.k8s.io" at the cluster scope
二：解决流程：
2.1：更新 kubeconfig：
2.1.1：执行命令：
export KUBECONFIG=/root/.kube/config
chmod g-r /root/.kube/config
2.2：再次执行之前的异常命令：
[root@vboxnode3ccccccttttttchenyang ~]# kubectl get deployment
Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")
[root@vboxnode3ccccccttttttchenyang ~]# kubectl apply -f calico.yaml
Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")
2.3：k8s配置操作config相关命令：
这一步应该在安装K8S kubeadm init后面执行，之前安装忘记这一步。
mkdir -p $HOME/.kubesudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/configsudo chown $(id -u):$(id -g) $HOME/.kube/config
[root@vboxnode3ccccccttttttchenyang ~]# mkdir -p $HOME/.kube
[root@vboxnode3ccccccttttttchenyang ~]#
[root@vboxnode3ccccccttttttchenyang ~]# sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
cp：是否覆盖"/root/.kube/config"？ y
[root@vboxnode3ccccccttttttchenyang ~]# sudo chown ( i d − u ) : (id -u): (id−u):(id -g) $HOME/.kube/config
在这里插入图片描述
2.4：重新执行之前操作失效命令：
可以看见都已经生效：
kubectl get nodes -o wide
kubectl apply -f calico.yaml
[root@vboxnode3ccccccttttttchenyang ~]# kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
chenyang-mine-vbox02 NotReady <none> 19h v1.21.0 192.168.56.102 <none> CentOS Linux 7 (Core) 3.10.0-1160.88.1.el7.x86_64 docker://23.0.5
vboxnode3ccccccttttttchenyang NotReady control-plane,master 19h v1.21.0 192.168.56.103 <none> CentOS Linux 7 (Core) 3.10.0-1160.90.1.el7.x86_64 docker://23.0.5
[root@vboxnode3ccccccttttttchenyang ~]# kubectl apply -f calico.yaml
configmap/calico-config created
customresourcedefinition.apiextensions.k8s.io/bgpconfigurations.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/bgppeers.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/blockaffinities.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/caliconodestatuses.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/clusterinformations.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/felixconfigurations.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/globalnetworkpolicies.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/globalnetworksets.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/hostendpoints.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/ipamblocks.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/ipamconfigs.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/ipamhandles.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/ippools.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/ipreservations.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/kubecontrollersconfigurations.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/networkpolicies.crd.projectcalico.org created
customresourcedefinition.apiextensions.k8s.io/networksets.crd.projectcalico.org created
clusterrole.rbac.authorization.k8s.io/calico-kube-controllers created
clusterrolebinding.rbac.authorization.k8s.io/calico-kube-controllers created
clusterrole.rbac.authorization.k8s.io/calico-node created
clusterrolebinding.rbac.authorization.k8s.io/calico-node created
error: error parsing calico.yaml: error converting YAML to JSON: yaml: line 153: found character that cannot start any token
[root@vboxnode3ccccccttttttchenyang ~]#
2.5：[解决]：重新启动机器后发现kubectl apply -f相关命令又失效无权限相关：
2.5.1：异常日志显示：
[root@vboxnode3ccccccttttttchenyang ~]# vim calico.yaml
-bash: vim: 未找到命令
[root@vboxnode3ccccccttttttchenyang ~]# vi calico.yaml
[root@vboxnode3ccccccttttttchenyang ~]# kubectl apply -f calico.yaml
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "policy/v1, Resource=poddisruptionbudgets", GroupVersionKind: "policy/v1, Kind=PodDisruptionBudget"
Name: "calico-kube-controllers", Namespace: "kube-system"
from server for: "calico.yaml": poddisruptionbudgets.policy "calico-kube-controllers" is forbidden: User "system:node:vboxnode3cccc ccttttttchenyang" cannot get resource "poddisruptionbudgets" in API group "policy" in the namespace "kube-system"
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "/v1, Resource=serviceaccounts", GroupVersionKind: "/v1, Kind=ServiceAccount"
Name: "calico-kube-controllers", Namespace: "kube-system"
from server for: "calico.yaml": serviceaccounts "calico-kube-controllers" is forbidden: User "system:node:vboxnode3ccccccttttttchen yang" cannot get resource "serviceaccounts" in API group "" in the namespace "kube-system": can only create tokens for individual s ervice accounts
Error from server (Forbidden): error when retrieving current configuration of:
Resource: "/v1, Resource=serviceaccounts", GroupVersionKind: "/v1, Kind=ServiceAccount"
Name: "calico-node", Namespace: "kube-system"
from server for: "calico.yaml": serviceaccounts "calico-node" is forbidden: User "system:node:vboxnode3ccccccttttttchenyang" cannot get resource "serviceaccounts" in API group "" in the namespace "kube-system": can only create tokens for individual service accou nts
2.5.2：解决方式：执行export KUBECONFIG=/root/.kube/config / chmod g-r /root/.kube/config
export KUBECONFIG=/root/.kube/config
chmod g-r /root/.kube/config
kubectl apply -f calico.yaml
[root@vboxnode3ccccccttttttchenyang ~]# export KUBECONFIG=/root/.kube/config
[root@vboxnode3ccccccttttttchenyang ~]# chmod g-r /root/.kube/config
[root@vboxnode3ccccccttttttchenyang ~]# kubectl apply -f calico.yaml
kubectl delete pod coredns-545d6fc579-6ddhj coredns-545d6fc579-nkk68 -n kube-system
[root@vboxnode3ccccccttttttchenyang ~]# export KUBECONFIG=/root/.kube/config
[root@vboxnode3ccccccttttttchenyang ~]# chmod g-r /root/.kube/config
[root@vboxnode3ccccccttttttchenyang ~]# kubectl apply -f calico.yaml
poddisruptionbudget.policy/calico-kube-controllers created
serviceaccount/calico-kube-controllers created
serviceaccount/calico-node created
configmap/calico-config unchanged
customresourcedefinition.apiextensions.k8s.io/bgpconfigurations.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/bgppeers.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/blockaffinities.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/caliconodestatuses.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/clusterinformations.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/felixconfigurations.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/globalnetworkpolicies.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/globalnetworksets.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/hostendpoints.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/ipamblocks.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/ipamconfigs.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/ipamhandles.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/ippools.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/ipreservations.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/kubecontrollersconfigurations.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/networkpolicies.crd.projectcalico.org configured
customresourcedefinition.apiextensions.k8s.io/networksets.crd.projectcalico.org configured
clusterrole.rbac.authorization.k8s.io/calico-kube-controllers configured
clusterrole.rbac.authorization.k8s.io/calico-node configured
clusterrolebinding.rbac.authorization.k8s.io/calico-kube-controllers unchanged
clusterrolebinding.rbac.authorization.k8s.io/calico-node unchanged
daemonset.apps/calico-node created
deployment.apps/calico-kube-controllers created
[root@vboxnode3ccccccttttttchenyang ~]#
相关文章：
[K8S：命令执行：权限异常：解决篇]：通过更新kubeconfig配置相关信息
文章目录 一：场景复现：1.1：关键信息：1.2：全异常日志输出： 二：解决流程：2.1：更新 kubeconfig：2.1.1：执行命令： 2.2：再次执行…...
帆软设计器报表加载不出折线图的原因
最近在用帆软设计器做可视化图表。偶有遇到因为数据集的字段类型导致加载不出折线，现记录如下。做报表的同行可以参考。 数据库使用了 Oracle 11g。数据集的 SQL 代码片是之前用在另一个单元格报表里面的。页面上有一个率是直接计算得出，我为了方便、就…...
[QCA6174]sdx12平台WiFi QCA6174在驱动加载的时候增加模块参数方法
需求描述 由于开发需要，有时候需要在驱动模块加载的时候增加一个参数，传递给到驱动使用 平台描述 Qualcomm SDX12+QCA6174平台 驱动信息 [ 112.281429] wlan: loading driver v4.0.11.213X [ 112.340262] msm_pcie_enable: PCIe: Assert the reset of endpoint of RC0. …...
Ajax-AJAX请求的不同发送方式
🥔：你一定能成为想要成为的人 发送AJAX请求不同方式 发送AJAX请求不同方式1、jQuery发送AJAX请求2、axios发送AJAX请求（重点）3、fetch发送AJAX请求 发送AJAX请求不同方式 1、jQuery发送AJAX请求 首先需要jquery的js文件…...
简易图书管理系统（面向对象思想）
目录 前言 1.整体思路 2.Book包 2.1Book类 2.2BookList类 3.user包 3.1User类 3.2NormalUser类 3.3AdminUser类 4.operation 4.1IOPeration接口 4.2ExitOperation类 4.3FindOperation类 4.4ShowOperation类 4.5AddOperation类 4.6DelOperation类 4.7BorrowOpera…...
C++ 函数模板与类模板
C最重要的特性之一就是代码重用，为了实现代码重用，代码必须具有通用性。通用代码应不受数据类型的影响，并且可以自动适应数据类型的变化。这种程序设计类型称为参数化程序设计。模板是C支持参数化程序设计的工具，通过它可以实现参…...
Tailwind CSS：简洁高效的工具，提升前端开发体验
112. Tailwind CSS：简洁高效的工具，提升前端开发体验 1. 什么是Tailwind CSS？ Tailwind CSS是由Adam Wathan、Jonathan Reinink、David Hemphill和Steve Schoger等人共同创建的一种现代CSS框架。与传统的CSS框架不同，Tailwind CS…...
NR CSI(六) CSI reporting using PUCCH
之前NR CSI(二) the workflow of CSI report有对CSI report的相关流程进行介绍，而这篇主要看下CSI reporting over PUCCH的相关规定。 CSI report在PUCCH上传输的场景如上表红色字体，有三种场景，具体的对应的是Periodic 和Semi-Persistent CS…...
论文阅读---《Unsupervised Transformer-Based Anomaly Detection in ECG Signals》
题目：基于Transformer的无监督心电图（ECG）信号异常检测 摘要 异常检测是数据处理中的一个基本问题，它涉及到医疗感知数据中的不同问题。技术的进步使得收集大规模和高度变异的时间序列数据变得更加容易，然而ÿ…...
5G上行干扰规避的参数策略
LNR干扰避让 1. 干扰避让特性 D1/D2干扰避让：干扰与非干扰带宽独立测量，避免部分频带受干扰拉低整个带宽MCS，基于测量结果， 用户级自适应调度60/80/100M，躲避干扰频带。 窄带干扰避让：避免部分带宽的干扰对…...
CTF流量题解tcp1
用流量工具进行分析。发现消息长度有点异常。右键TCP跟踪。 ....mos.-mos-.-.mos-.-mos..-.mos..-mos-. 摩斯密码生成-网页工具 (adminun.com)...
Django快速入门
文章目录 一、安装1.创建虚拟环境（virtualenv和virtualenvwrapper）2. 安装django 二、改解释器三、创建一个Django项目四、项目目录项目同名文件夹/settings.py 五、测试服务器启动六、数据迁移七、创建应用八、基本视图1. 返回响应 response2. 渲染模板…...
Python “牵手” 淘宝商品详情数据获取方法，淘宝API申请指南
淘宝详情接口 API 是淘宝开放平台提供的一种 API 接口，它可以帮助开发者获取淘宝商品的详细信息，包括商品的标题、描述、图片等信息。在淘宝电商平台的开发中，淘宝详情接口 API 是非常常用的 API，因此本文将详细介绍淘宝详情接口 …...
OpenScene
paper：OpenScene: 3D Scene Understanding with Open Vocabularies code: https://github.com/pengsongyou/openscene 摘要：传统的3D场景理解方法依赖于带标签的3D数据集，在有监督的情况下为单个任务训练模型。我们提出了OpenScene，一种替代性的方法，模型预测CLIP特征空…...
HDFS中的Trash垃圾桶回收机制
Trash垃圾桶回收机制 文件系统垃圾桶背景功能概述Trash Checkpoint Trash功能开启关闭HDFS集群修改core-site.xml删除文件到trash删除文件跳过从trash中恢复文件清空trash 文件系统垃圾桶背景 回收站（垃圾桶）是windows操作系统里的一个系统文件夹&#…...
segment-anything使用说明
文章目录 一. segment-anything介绍二. 官网Demo使用说明三. 安装教程四. python调用生成掩码教程五. python调用SAM分割后转labelme数据集 一. segment-anything介绍 Segment Anything Model（SAM）根据点或框等输入提示生成高质量的对象遮罩，…...
在魔塔社区搭建通义千问-7B（Qwen-7B）流程
复制以下语句 python3 -m venv myvenvsource myvenv/bin/activatepip install modelscope pip install transformers_stream_generator pip install transformers pip install tiktoken pip install accelerate pip install bitsandbytestouch run.py vi run.py复制下面代码粘…...
Redis 加入服务列表自启动
1、下载reids windows版本，选择zip格式下载 2、解压zip，并进入路径； 3、命令提示符（cmd） 进入解压后的路径后，输入指令：redis-server --service-install redis.windows.conf； 4、如…...
MyCat管理及监控——zookeeper及MyCat-web安装
1.MyCat管理 2.MyCat-eye 3.zookeeper安装 第一步：解压 第二部： 切换目录，创建data文件夹 第三步：修改zookeeper配置文件 这样zookeeper安装及配置就完成了 4.MyCat-web安装 注意mycat-web要与zookeeper关联，…...
基于spring boot的餐饮管理系统java酒店饭店菜谱 jsp源代码mysql
本项目为前几天收费帮学妹做的一个项目，Java EE JSP项目，在工作环境中基本使用不到，但是很多学校把这个当作编程入门的项目来做，故分享出本项目供初学者参考。 一、项目描述 基于spring boot的餐饮管理系统j 系统1权限ÿ…...
Java 加密常用的各种算法及其选择
在数字化时代，数据安全至关重要，Java 作为广泛应用的编程语言，提供了丰富的加密算法来保障数据的保密性、完整性和真实性。了解这些常用加密算法及其适用场景，有助于开发者在不同的业务需求中做出正确的选择。 一、对称加密算法…...
Ascend NPU上适配Step-Audio模型
1 概述 1.1 简述 Step-Audio 是业界首个集语音理解与生成控制一体化的产品级开源实时语音对话系统，支持多语言对话（如 中文，英文，日语），语音情感（如 开心，悲伤）&#x…...
第 86 场周赛：矩阵中的幻方、钥匙和房间、将数组拆分成斐波那契序列、猜猜这个单词
Q1、[中等] 矩阵中的幻方 1、题目描述 3 x 3 的幻方是一个填充有 从 1 到 9 的不同数字的 3 x 3 矩阵，其中每行，每列以及两条对角线上的各数之和都相等。 给定一个由整数组成的row x col 的 grid，其中有多少个 3 3 的 “幻方” 子矩阵&am…...
OPENCV形态学基础之二腐蚀
一.腐蚀的原理 (图1) 数学表达式：dst(x,y) erode(src(x,y)) min(x,y)src(xx,yy) 腐蚀也是图像形态学的基本功能之一，腐蚀跟膨胀属于反向操作，膨胀是把图像图像变大，而腐蚀就是把图像变小。腐蚀后的图像变小变暗淡。 腐蚀…...
破解路内监管盲区：免布线低位视频桩重塑停车管理新标准
城市路内停车管理常因行道树遮挡、高位设备盲区等问题，导致车牌识别率低、逃费率高，传统模式在复杂路段束手无策。免布线低位视频桩凭借超低视角部署与智能算法，正成为破局关键。该设备安装于车位侧方0.5-0.7米高度，直接规避树枝遮…...
深度学习之模型压缩三驾马车：模型剪枝、模型量化、知识蒸馏
一、引言 在深度学习中，我们训练出的神经网络往往非常庞大（比如像 ResNet、YOLOv8、Vision Transformer），虽然精度很高，但“太重”了，运行起来很慢，占用内存大，不适合部署到手机、摄…...
认识CMake并使用CMake构建自己的第一个项目
1.CMake的作用和优势 跨平台支持：CMake支持多种操作系统和编译器，使用同一份构建配置可以在不同的环境中使用 简化配置：通过CMakeLists.txt文件，用户可以定义项目结构、依赖项、编译选项等，无需手动编写复杂的构建脚本…...
Android屏幕刷新率与FPS(Frames Per Second) 120hz
Android屏幕刷新率与FPS(Frames Per Second) 120hz 屏幕刷新率是屏幕每秒钟刷新显示内容的次数，单位是赫兹（Hz）。 60Hz 屏幕：每秒刷新 60 次，每次刷新间隔约 16.67ms 90Hz 屏幕：每秒刷新 90 次，…...
Java中栈的多种实现类详解
Java中栈的多种实现类详解：Stack、LinkedList与ArrayDeque全方位对比 前言一、Stack类——Java最早的栈实现1.1 Stack类简介1.2 常用方法1.3 优缺点分析 二、LinkedList类——灵活的双端链表2.1 LinkedList类简介2.2 常用方法2.3 优缺点分析 三、ArrayDeque类——高…...
python可视化：俄乌战争时间线关键节点与深层原因
俄乌战争时间线可视化分析：关键节点与深层原因 俄乌战争是21世纪欧洲最具影响力的地缘政治冲突之一，自2022年2月爆发以来已持续超过3年。 本文将通过Python可视化工具，系统分析这场战争的时间线、关键节点及其背后的深层原因，全面…...