Tag：Hard disk
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Time：2021-5-9
1、 Introduction of storage failure The storage device of a vsan distributed file system of a company in Beijing was shut down and restarted for unknown reasons, and then it was found that the logical architecture had a serious failure, the upper virtual machine was paralyzed, and the data in the storage was lost.The customer’s […]
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Time：2021-5-6
mechanism So far, we have assumed that the address space is very small and can be put into physical memory. In fact, we assume that the address space of each running process can be put into memory. Now, let’s let go of these assumptions, assuming that we need to support a huge address space where […]
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Time：2021-5-4
1. Overview of Kafka message persistence Kakfa relies on the file system to store and cache messages. The traditional concept of hard disk is that hard disk is always very slow. Can file system based architecture provide excellent performance? In fact, the speed of a hard disk depends entirely on how it is used. At […]
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Time：2021-4-22
Before learning Linux, let’s have a brief understanding of what Linux is. Linux actually has two meanings, one is the operating system in a broad sense, and the other is the kernel of open source operating system written by Finnish gifted programmer Torvalds. Next, in our course, Linux refers to the operating system in a […]
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Time：2021-4-20
40s News Express Huawei’s self driving model launched, 38 . From 890000 yuan The former employee apologized, Tesla withdrew the lawsuit and reached a settlement with Xiaopeng automobile NASA signs $2.9 billion deal with SpaceX Out of stock: new currency Chia sets off a boom of high capacity hard disk mining Cryptocurrency crash market! Firefox […]
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Time：2021-4-19
Author: Bing Yue, introduction: Senior Engineer of Alibaba, focusing on distributed system and high availability architecture, methodology and cognitive upgrading, practice and continuous learning. source: www.cnblogs.com/binyue/p/10308754.html Kafka in 30 seconds Let’s take a quick look at Kafka and some details about how it works. Kafka is a distributed messaging system. It was first established in […]
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Time：2021-4-8
MySQL engine, index and algorithm After understanding the basic curd operation of MySQL, the next knowledge we must master is the index of MySQL. During the interview, I often like to ask about the knowledge of MySQL from the superficial to the deep, so as to know what level the candidate has learned about mysql.Last […]
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Time：2021-4-7
Redis learning experience Before reading this book, I learned about redis through other people’s blogs and manuals. I got a lot of knowledge from reading this book in the last two weeks, so I plan to share a learning note. Can you really name the key of redis? It is suggested that redis has no […]
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Time：2021-4-3
Because I upgraded my laptop and replaced a 2.5-inch 1t mechanical hard disk. I thought it would be idle too. It’s better to make a NAS play, where I can store some personal files and movie blockbusters and share them with everyone at home. Next, let’s follow my steps and see how to realize them […]
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Time：2021-4-1
Operation feel cumbersome, you can add me qq1316677086, I can empty online operation Microsoft official media installation is absolutely pure version. The way of U disk PE installation is to see whether your IOS image is pure version If you need to activate, you can visit my blog www.yuxiaoshao.cn Find the activation article in, permanent […]
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Time：2021-3-21
1、 What is an interface An interface is a protocol used to define a program. It describes a set of related behaviors that can belong to any class or structure. An interface is a set of rules, which specifies a set of rules that the class or interface that implements the interface must have. It […]
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Time：2021-3-2
1. Server security settings — hard disk permissions This paper focuses on the required permissions, that is, the permissions required for the final folder or hard disk, which can prevent all kinds of Trojan invasion, power raising attack, cross site attack, etc. This example has been tested for many times, the security performance is very […]
