Programmer Group

Design Mode 20 - Observer Summary Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically. Define a one-to-many dependency between objects. When an object's state changes, all dependent objects are notified and updated automatically. Also known as publish ...

1: Background1. Tell a storyLast month, a friend came to me and said that there was a memory leak in his program. I don't know how to further analyze it. The screenshot is as follows:My friend, this paragraph has been very concise and comprehensive. Let's talk to windbg.2: Windbg analysis1. What is the leakageAccording to my friend's descript ...

Record the pits and Bug solutions encountered in debugging on the Xilinx-Ego1, and Vivado's code-writing skills for developing the GA, so as to leave a background for future review. The whole article uses the development idea of single-chip computer to develop the field-bus, only to help readers get started quickly, and the development language ...

------------Restore content start------------ Recently, I reviewed the basic knowledge related to the Spring framework. The Spring framework often appears in the interview questions to solve the problem of circular dependency. I also read many online blogs. The following is my learning record. If there is anything unreasonable, please correct i ...

Etcd is a very important Service of kubernetes cluster. It stores all data information of kubernetes cluster, such as Namespace, Pod, Service, routing and other status information. In case of etcd cluster disaster or etcd cluster data loss, it will affect k8s cluster data recovery. Therefore, it is very important to backup etcd data to realize ...

The notes are learned according to the old boy Video + official documents and recorded. If there are mistakes and omissions, those in a good mood can point out them. Video address: https://www.bilibili.com/video/BV1LJ411Y7og?p=12   Mirror service (GRACE) The mirroring service (GRACE) allows users to discover, register and obtain virtu ...

0x00 overview This article covers Java knowledge points, internal classes, and API s   0x01 parameter transfer 1.1 class name as formal parameter and return value The class name is used as the formal parameter of the method The formal parameter of the method is the class name. In fact, what is needed is the object of the class What is actuall ...

Welcome to my GitHub Here we classify and summarize all the original works of Xinchen (including supporting source code): https://github.com/zq2599/blog_demos Overview of this article In the Spring Cloud Gateway application, if an exception is not caught when processing a request, the response received by the requester is the default conten ...

1. Agent mode Agent pattern is a design pattern that is easy to understand. Simply put, we use proxy objects instead of accessing real objects, so that we can provide additional function operations and expand the functions of the target object without modifying the original target object. The agent mode contains three roles: Abstract topic r ...

Consul user manual (feels quite complete) Using consumer introduce Consul contains multiple components, but as a whole, it provides tools for service discovery and service configuration for your infrastructure. It provides the following key features: Service discovery   Consul clients can provide a service, such as api or mysql. Other cl ...