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Service registration and discovery, service discovery is mainly used to achieve automatic registration and discovery of individual micro-service instances. It is the core of micro-service governance. To learn Spring Cloud Alibaba, first of all, you need to understand the service registration and discovery component in the framework, Nacos. 1. S ...

Talking about the network in Linux Connectivity between namespace s Namespace is a feature supported after Linux 2.6.x kernel, which is mainly used for resource isolation. With namespace, a Linux system can abstract multiple network subsystems. Each subsystem has its own network device, protocol stack, etc., which do not affect each other. ...

Experimental environment rhel6.5 serevr1 salt-master,salt-minion keepalived+haproxy ip:172.25.254.100 server4 salt-minion keepalived+haproxy ip :172.25.254.104 server2 salt-minion ip:172.25.254.102 server3 salt-minion ip:172.25.254.103 Virtual IP 172.25.254.200 See https://blog.csdn.net/weixin_/article/details/834 ...

Introduction: The master-slave cascade is to reduce the pressure of the master database, which is more conducive to load balancing. If we don't have a cascade server, we can also achieve the effect of master-slave synchronization, but we don't recommend using it. On the one hand, the pressure of the master database is too hig ...

Create the simplest python+django project and run it in the docker container. Environmental Science: In 192.168.174.134 server docker image: python:2 (python2.7.15) django: 1.8.31. Create python project in 134 server django-admin startproject ops python manage.py migrate Create a root user python manage.py createsuperuser root@u ...

Close main station [root@dell710 ~]# bash /usr/local/tomcat/bin/shutdown.sh Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/local/javaUsing CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomca ...

Tips for using consumer View all registered services consul catalog services Configure consumer.json { "server": true, "datacenter": "testgame", "client_addr": "0.0.0.0", "advertise_addr":"192.168.83.70", "bootstrap_expect": 1, "enable_syslog": true, "enable_script_checks": true, "data_dir": "/usr/local/consul/data", "node_name": "co ...

1. Copy the Nginx configuration file [root@localhost ~]# cd /etc/nginx/conf.d/ [root@localhost conf.d]# cp default.conf default1.conf 2. Modify the configuration file default.conf [root@localhost conf.d]# vim default.conf server { listen 80; server_name www.host.com; #charset koi8-r; #access_log /var ...

Article directory Cycle and concurrent number control Grammatical structure `for loop concurrent deletion of users for uses a space as a separator when reading a row to get parameters, while uses a row as a separator Concurrency control (FD and named pipeline realize concurrency) -FD file handle -Named pipe -Case: FD and na ...

Install alirocketmq version from scratch on CentOS7: release-4.0.1 [pro test ha ha] Install git # Update package $ yum update # Install git $ yum install git # Verify git installation success $ git --version # So git can be installed successfully Install wget dependency package # Update package $ yum install wget # You can ...