Linux

Posted by BlueFat on Friday, December 23, 2022

RocketMQ deleteSubscriptionGroup 不删除 consumer offset 解决

Rocketmq Delete Consumer Group

https://github.com/apache/rocketmq/issues/3660 使用下面命令，删除订阅组成功但在rocketmq-dashboard 还能看到订阅组信息，只不过会显示1970-01-01 08:00:00，

Posted by BlueFat on Tuesday, November 22, 2022

SSH 一次执行多个命令

Ssh Multiple Commands

分号 ssh User@Host 'source /etc/profile; date' 写EOF ssh User@Host /bin/bash << EOF date ls -la uptime EOF 使用脚本 echo 'date' > 1.sh ssh User@Host bash -s < 1.sh

Posted by BlueFat on Monday, November 21, 2022

正则表达式

Regex

基本语法代码说明 . 匹配除换行符外任意一个字符 [abc] 字符集合,匹配集合中包含的任意一个字符 [^abc] 字符集合,匹配非集合内的任意一个字符 [a-z] 字符集合范围,匹

Posted by BlueFat on Thursday, August 18, 2022

Kubernetes 1.24 二进制高可用集群安装

Kubernetes Binary Build High Availability

生产环境中，建议使用版本大于5的Kubernetes版本，如1.24.6 系统：CentOS 7.5 K8S：1.24.6 containerd: v1.6.4 calico: 1.24 集群环境 hostname IP/VIP software k8s-master01 192.168.1.171 e

Posted by BlueFat on Tuesday, May 17, 2022

Kubeadm搭建高可用Kubernetes v1.23.5集群

Kubeadm Builds High Availability Kubernetes

基础环境配置 IP地址主机名服务配置 192.168.1.171 k8s-01 k8s-master、containerd、keepalived、nginx 2c4g 192.168.1.172 k8s-02 k8s-master

Posted by BlueFat on Tuesday, May 17, 2022

Ubuntu 16.04 Letsencrypt R3证书过期

Letsencrypt Certificate Has Expired

root@sunday:~# curl https://letsencrypt.org/ curl: (60) server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none More details here: http://curl.haxx.se/docs/sslcerts.html curl performs SSL certificate verification by default, using a "bundle" of Certificate Authority (CA) public keys (CA certs). If the default bundle file isn't adequate, you can specify an alternate file using the --cacert option. If this HTTPS server uses a certificate signed by a CA represented in the bundle, the certificate verification

Posted by BlueFat on Tuesday, October 5, 2021

OpenSSL 生成 gRpc SSL证书

Grpc Ssl Generate

TLS 概述传输层安全 (TLS) 对通过 Internet 发送的数据进行加密，以确保窃听者和黑客无法看到您传输的内容，这对于密码、信用卡号和个人通信等私人和敏感信息特别有用

Posted by BlueFat on Sunday, December 6, 2020

Grpc Proxy 反向代理

Grpc Proxy

Nginx 在 1.13.10 中，新增了对gRPC的原生支持。有了对 gRPC 的支持，NGINX 就可以代理 gRPC TCP 连接，还可以终止、检查和跟踪 gRPC 的方法调用。你可以：发布 gRPC 服务，

Posted by BlueFat on Sunday, December 6, 2020

PHP Rocketmq grpc 插件安装

Php grpc

grpc need version 3.13 or later of cmake gcc https://ftp.gnu.org/gnu/gcc/gcc-8.3.0/gcc-8.3.0.tar.gz tar xf gcc-8.3.0.tar.gz cd gcc-8.3.0 ./contrib/download_prerequisites ./configure --prefix=/usr/local/gcc-8.3.0 --enable-bootstrap --enable-languages=c,c++ --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib make -j$(nproc) make install cmake 指定gcc版本可以直接在shell中对CC和CXX进行指定: export CC=/usr/local/gcc-8.3.0/bin/gcc export CXX=/usr/local/gcc-8.3.0/bin/g++ cmake /path/to/your/project make 也可以直

Posted by BlueFat on Thursday, December 3, 2020

Rocketmq 集群

Rocketmq

https://github.com/apache/rocketmq/tree/master/docs/cn 集群方案 https://github.com/apache/rocketmq/blob/master/docs/cn/operation.md 单Master模式这种方式风险较大，一旦Broker重启或者宕机时，会导致整个服务不可用。不建议线上环境使用，可以用于本地测试。

Posted by BlueFat on Saturday, November 14, 2020

图解Https

Diagram Https

Posted by BlueFat on Friday, November 13, 2020

Trojan 转发

Trojan Forward

安装 https://github.com/Jrohy/trojan #安装/更新 source <(curl -sL https://git.io/trojan-install) #卸载 source <(curl -sL https://git.io/trojan-install) --remove 安装完后输入trojan可进入管理程序设置证书、新增用户 … root@ls:~# trojan mysql安全配置 # 记录mariad

Posted by BlueFat on Wednesday, October 21, 2020

RabbitMQ 集群搭建

Rabbitmq Cluste

AMQP AMQP，即Advanced Message Queuing Protocol，高级消息队列协议，是应用层协议的一个开放标准，为面向消息的中间件设计。AMQP的主要特征

Posted by BlueFat on Saturday, August 15, 2020

Rabbitmq Flow流控

Rabbitmq Flow

为什么要流控？流控主要是为了防止生产者生产消息速度过快，超过 Broker 可以处理的速度。这时需要暂时限制生产者的生产速度，让 Broker 的处理能够跟上生产速度。

Posted by BlueFat on Tuesday, August 11, 2020

Sunday Blog

使用 sed 追加文件内容到文件首部

Sed Head File