Programmer Think

Complete developer certification Apply for Tencent open platform Use qq login to complete the realName authentication, click to create application Create site app Fill in relevant information It is very important to fill in the callback field. If you fill in the wrong code, you will see 100010[QQ login] login common error code Front end This is ...

After the reflection server that cracked Jetbrains' family barrel was blocked, the IDE activated by lanyu's activation code will expire in May this year. Developers accustomed to the convenience brought by JB will be very embarrassed on youth day if they don't plan early. However, many people will be deterred by the charges of the original v ...

Rxprofile library is a well written network framework library, which is imported into its own project as a local Module first. 1. Most of its initialization operations are completed in user-defined application s, such as: public class App extends Application { @Override public void onCreate() { super.onCreate(); ...

keepalived overview The function of Keepalived is to detect the state of the server. If a web server goes down or fails to work, Keepalived will detect it and remove the failed server from the system. At the same time, other servers will be used to replace the server's work. When the server works normally, Keepalived will automatically add the ...

Generally, for android phones, we can judge the network situation through the method provided by sdk   /** * Get the current network status: no network - 0: WIFI network 1: 4G Network - 4: 3G network - 3: 2G network - 2 * custom * * @param context * @return */ public static int getAPNType(Context context) ...

1. Environment: centos7.5 MySQL 5.7192.168.3.222 master192.168.3.158 slave192.168.3.223 VIPTwo: first, make two mastersTo operate both machines2.1: domain name resolution: ###vim /etc/hosts (both) 192.168.3.222 master 192.168.3.158 slave 2.2: Download MySQL 5.7 ### wget http://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm ### rpm - ...

PrefaceThe text and pictures of this article are from the Internet, only for learning and communication, not for any commercial purpose. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Author: Clear wind turns evil spirit_  text Note to novice: if you can't find a solution to t ...

Deploy KVM virtual machine a.kvm installation Environment: centos7, cpu supports virtualization, close selinux, close firewalld yum install libvirt virt-install qemu-kvm -y libvirt service: managing the life cycle of kvm virtual machine Virt install tool: create and install virtual machine QEMU KVM tool: using QEMU img to provide disk ...

1. View the container image version of this version: kubeadm config images list The output is as follows: ~# kubeadm config images list k8s.gcr.io/kube-apiserver:v1.14.0 k8s.gcr.io/kube-controller-manager:v1.14.0 k8s.gcr.io/kube-scheduler:v1.14.0 k8s.gcr.io/kube-proxy:v1.14.0 k8s.gcr.io/pause:3.1 k8s.gcr.io/etcd:3.3.10 k8s.gcr.io/coredns:1.3.1 ...

[TOC] Section I Kafka cluster Before inheriting If you are a developer and are not interested in building kafka cluster, you can skip this chapter and look at tomorrow's content directly If you think it's no harm to know more, please keep reading. As a reminder, there are many figures in this chapter Kafka cluster construction Summary The ...