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Not long ago, Alibaba Cloud, DingTalk, Yuque, Taobao, and Xianyu all collapsed. Recently, the collapse of Didi also became a hot topic.
The collapse of Didi's system is a total paralysis. Not only the user side cannot be used normally, but there are also problems with the driver side and Didi's intranet.
The fault is all in the underlying infrastructure. Because taxi-hailing, bike-sharing and other services have completely collapsed. In the Internet, there should be isolation between different business sectors, indicating that the problem lies in the underlying infrastructure.
In the past few years, many Internet companies like to engage in some kind of China-Taiwanization.
That is to say, we seek to unify and maintain consistency in the company's technology, architecture, and components. We learn from the same school, pay attention to efficiency and reuse, and achieve cost reduction and efficiency improvement.
But in the past few years, you will find that the middle offices of many companies are being eliminated, which is very sad.
Online accidents like this are P0 level, and someone must take the blame.
Didi’s accident lasted for more than 12 hours, and the loss exceeded 400 million yuan
It can be inferred that there is basically no hope for year-end bonuses for technical staff, and some managers even want to pack up and leave. Websites and App applications on the Internet are supported and run by several servers.
Generally, large-scale system crashes are caused by the following reasons:
First, the system upgrade failed and went online without being covered by the test. A certain underlying API service hung up and affected the system operation.
The second is server failure, natural and man-made disasters, etc.;
It was a third-party service failure. A third-party component was used, and the component failed, causing service failure;
Is it encountering hacker attacks, database deletion, etc.
In most cases, it should be in the first two
Even for large manufacturers, there are still flaws in their work processes or technical specifications. Some people joke about stability on the basic market. They export experienced old drivers to the society, and the rest rely on a group of people doing ppt to put out fires and prevent frequent accidents. Strange
In fact, the real implementers in the company are still the bottom-line developers.
As for the rank M level, they usually give instructions and give orders.
Although most front-line developers are relatively replaceable, some core skeleton employees often cannot reduce costs and increase efficiency at will. Otherwise, if something goes wrong, it will be a loss. Although there is no way to guarantee that things like program software will not be 100% question
After all, some problems can be controlled by humans, and some cannot be controlled by humans.
I hope some accidents can serve as a wake-up call for companies
Regarding whether it is better to be a P-type person or an M-type person in the workplace
A working boy turns into a second-generation billionaire - the movie comes into reality
Section 2.3 - Am I right for the job?
Section 2.2 - What are the jobs that meet the above conditions?
Section 2.1 - Self-understanding and career positioning - What kind of position do I hope to find?
Section 1 - What is the company’s interview process?
(Able to draw and answer questions)