# troubleshooting

- [coredns service 连接超时(connection timed out; no servers could be reached)](/openshift-docs/troubleshooting/coredns-service-lian-jie-chao-shi-connection-timed-out-no-servers-could-be-reached.md)
- [etcdDatabaseHighFragmentationRatio 异常处理](/openshift-docs/troubleshooting/etcddatabasehighfragmentationratio-yi-chang-chu-li.md)
- [helm更新服务报错提示statefulset更新是被禁止的](/openshift-docs/troubleshooting/helm-geng-xin-fu-wu-bao-cuo-ti-shi-statefulset-geng-xin-shi-bei-jin-zhi-de.md)
- [k8s如果防止容器中出现僵尸进程](/openshift-docs/troubleshooting/k8s-ru-guo-fang-zhi-rong-qi-zhong-chu-xian-jiang-shi-jin-cheng.md)
- [kubevirt api server 证书过期问题导致openshfit调度异常](/openshift-docs/troubleshooting/kubevirtapiserver-zheng-shu-guo-qi-dao-zhi-ocp-tiao-du-yi-chang.md)
- [macOS Chrome访问https://registry-console-default.appsxxx.xxx.xxx/页面显示ERR\_CERT\_INVALID，且不能点继续](/openshift-docs/troubleshooting/macoschrome-fang-wen-https-ye-mian-xian-shi-errcertinvalid-qie-bu-neng-dian-ji-xu.md)
- [master 主机df 卡死](/openshift-docs/troubleshooting/master-zhu-ji-df-ka-si-gu-zhang-chu-li.md)
- [openshift project Terminaing处理](/openshift-docs/troubleshooting/openshiftprojectterminaing-chu-li.md)
- [OpenShift Docker Registry 500](/openshift-docs/troubleshooting/openshiftregistry500-cuo-wu.md)
- [解决openshift3.11 node NotReady csr Pending](/openshift-docs/troubleshooting/openshift3.11-node-notready-csr-pending.md)
- [openshift3.11-pvc-delete-Terminating-hang](/openshift-docs/troubleshooting/openshift3.11-pvc-delete-terminating-hang.md)
- [openshift3.11清理Terminating 状态project](/openshift-docs/troubleshooting/openshift3.11-qing-li-terminating-zhuang-tai-project.md)
- [pod pending event报错cni无可用IP](/openshift-docs/troubleshooting/podpendingevent-bao-cuo-cni-wu-ke-yong-ip.md)
- [ucloud环境开启selinux后/var/log/messages不能写入问题](/openshift-docs/troubleshooting/ucloud-huan-jing-kai-qi-selinux-hou-varlogmessages-bu-neng-xie-ru-wen-ti.md)
- [ucloud环境开启selinux](/openshift-docs/troubleshooting/ucloud-huan-jing-kai-qi-selinux-dao-zhi-wang-luo-bu-tong-wen-ti.md)
- [解决openshift3.11不能下载redhat registry.access.redhat.com中镜像问题](/openshift-docs/troubleshooting/jie-jue-openshift3.11-bu-neng-xia-zai-redhat-registry.access.redhat.com-zhong-jing-xiang-wen-ti.md)
- [证书未过期但是报NET::ERR\_CERT\_AUTHORITY\_INVALID证书错误处理](/openshift-docs/troubleshooting/zheng-shu-wei-guo-qi-dan-shi-bao-neterrcertauthorityinvalid-zheng-shu-cuo-wu-chu-li.md)