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ERROR: Failed to create CA certificate for self-signing. If the error is “unknown option -addext”, update your openssl version or deploy VPA from the vpa-release-0.8 branch.
当执行vpa脚本时，出现下面错误日志 ERROR: Failed to create CA certificate for self-signing. If the error is "unknown option -addext", update your openssl version or deploy VPA from the vpa-release-0.8 branc…- 6
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Python离线安装第三方包
1.通过pip下载安装包，然后在其他机器上安装 python -m pip download test==1.3.5 // 安装的库名为test，版本为1.3.5 python -m pip install --no-index --find-links=./test/ test pip3 download -d /root/package/pip_package/ pymysql 2.通过网站下…- 36
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Code: 210. DB::NetException: Connection refused (localhost:9000)
Clickhouse本地服务器执行连接的时候提示Code: 210. DB::NetException: Connection refused (localhost:9000) 解决方法: 1.首先检查监听网段<listen_host>::</listen_host> 2.检查配置服务端口信息 目前我们的服务监听已经在0.0.0.0 root@iZ2zeipez8ut08d…- 185
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Ubuntu 安装配置NFS客户端
#安装NFS服务器端 sudo apt-get install nfs-kernel-server #安装NFS客户端 sudo apt-get install nfs-common #我们这里只需要安装nfs客户端就可以 由于我这里只是使用mount挂载，不充当NFS服务，所以这里执行下面的命令直接挂载 mkdir data mount -t nfs 192.168.31.198:/volume…- 80
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mysqldump备份所有库脚本
脚本内容如下 #!/bin/bash date=`date +%Y_%m_%d'___'%H_%M_%S` ####################################### project_path=$(cd `dirname $0`; pwd) ####################################### start_time=`date --…- 124
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ceph mds MDS_INSUFFICIENT_STANDBY insufficient standby MDS daemons available
[root@ceph-01 ~]# ceph health detail HEALTH_WARN insufficient standby MDS daemons available MDS_INSUFFICIENT_STANDBY insufficient standby MDS daemons available have 0; want 1 more 这个报错内容基本上是触发了我们ceph …- 56
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Ceph集群提示insufficient standby MDS daemons available
ceph集群健康检查出现问题，提示insufficient standby MDS daemons available 具体信息如下- 176
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Ceph ceph-csi查看版本号
在ceph csi pod里面是没有可以sh的地方，如果我们需要看最新的版本号，可以在GitHub中查看 第一步: 打开https://github.com/ceph/ceph-csi 选择build.env文件 截至2022年7月25日，最新的ceph-csi查看版本号在build.env。默认ceph deploy安装的版本号为N版，稳定版；请一定要保证ceph-csi和ceph集群版本在同一…- 134
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docker删除所有容器镜像
删除容器，则要先停止所有容器（当然，也可以加-f强制删除，但是不推荐）： docker stop $(docker ps -a -q) 删除所有容器 docker rm $(docker ps -a -q) 删除所有镜像 docker rmi $(docker images -q)- 37
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K8s CephFS: mount failed: mount failed: fork/exec /usr/bin/systemd-run: invalid argument
在使用pod挂载cephfs挂载pod错误日志如下 Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 13m default-scheduler Successfully assigned default/nginx-pod1 to k8s-02 Warning FailedMou…- 77
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![CoreDNS 提示 [FATAL] plugin/loop: Loop (127.0.0.1:38759 -> :53) detected for zone](https://cdn.i4t.com/uploads/2022/07/coredns.png)
CoreDNS 提示 [FATAL] plugin/loop: Loop (127.0.0.1:38759 -> :53) detected for zone
root@VM-16-2-ubuntu:~/coredns# kubectl logs -f -n kube-system coredns-6d86b45487-x6b52- 76
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Error: failed to run Kubelet: failed to create kubelet: get remote runtime typed version failed: rpc error: code = Unimplemented desc = unknown service runtime.v1alpha2.RuntimeService
Kubelet 使用containerd作为容器运行时，启动的时候提示下面的报错内容 Jul 19 10:44:41 VM-16-2-ubuntu kubelet- 384
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containerd: failed to load TOML: /etc/containerd/config.toml: (126, 13): The following key was defined twice: plugins.io.containerd.grpc.v1.cri.containerd.runtimes.runc.options.SystemdCgroup
报错日志如下 root@VM-16-2-ubuntu:~# journalctl -fu containerd -- Logs begin at Sun 2022-07-17 16:19:23 CST. -- Jul 17 17:11:32 VM-16-2-ubuntu systemd- 85
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Centos7 Cannot umount /oldroot
Centos7配置RBD挂载后，重启系统报错如下 dracut Warning: Cannot umount /oldroot dracut Warning: Blocking umount of /oldroot- 87
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一键卸载腾讯云监控YDService和barad_agent
监控图 发现服务器内存使用率过高，使用top发现两个不知名进程 平常也几乎不使用腾讯云的监控，有自己的prometheus，所以我们要将它进行卸载 本地操作系统为Centos 卸载命令 /usr/local/qcloud/stargate/admin/uninstall.sh /usr/local/qcloud/YunJing/uninst.sh /usr/local/qcloud/monitor…- 130
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Docker commpose failed to create network rss_public_access: Error response from daemon: Failed to Setup IP tables: Unable to enable SKIP DNAT rule
Docker commpose 启动容器时提示如下 failed to create network rss_public_access: Error response from daemon: Failed to Setup IP tables: Unable to enable SKIP DNAT rule: (iptables failed: iptables --wait -t nat -…- 256
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Docker commpose failed to create network Failed to program NAT chain: COMMAND_FAILED:
报错内容如下 failed to create network rss_public_access: Error response from daemon: Failed to program NAT chain: COMMAND_FAILED: '/usr/sbin/iptables-restore -w -n' failed: iptables-restore v1.4.2…- 37
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k8s storageclass 提示External provisioner is provisioning volume for claim “prometheus/prometheus-data-db”
后端存储使用ceph，创建好storageclass。当我们创建pvc时 pvc一直处于pending状态 pvc详细信息如下 Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Provisioning 54m (x8 over 55m) rbd.csi.ceph.com_csi-rbdplugin-…- 196
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unexpected error getting claim reference: selfLink was empty, can’t make reference
错误日志如下: I0620 07:19:39.552037 1 leaderelection.go:185] attempting to acquire leader lease cephfs/ceph.com-cephfs... E0620 07:19:39.610071 1 event.go:259] Could not construct reference to: '&v…- 37
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![nginx: [emerg] unknown “connection_upgrade” variable](https://cdn.i4t.com/uploads/2019/09/173781d634f050.jpg)
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No server certificate verification method has been enabled
Openvpn连接的时候提示： No server certificate verification method has been enabled 你需在安装目录OpenVPNconfig下的OpenVPN Config File（.ovpn）里面最后一行加上 remote-cert-tls server- 1.2k
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