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Experts analyze the behind the collapse of Xi'an's "one code pass": or the instantaneous load is too large, you can learn from cases such as 12306

In the early morning of January 5, the official WeChat "Gudu Pioneer" of the Organization Department of the Xi'an Municipal Party Committee released the news that Comrade Liu Xin was a member of the party group of the Municipal Big Data Resources Management Bureau and was a candidate for deputy director (presiding over the work); Comrade Liu Jun, secretary of the party group and director of the Municipal Big Data Resources Management Bureau, was suspended for inspection due to ineffective performance of his duties. Previously, Xi'an One Code Pass collapsed twice in half a month, and on December 20 last year and January 4 this year, the interface could not be displayed normally, resulting in obstacles to the traffic travel of Xi'an citizens, causing widespread concern in society.

Experts analyze the behind the collapse of Xi'an's "one code pass": or the instantaneous load is too large, you can learn from cases such as 12306

What are the problems behind the "one-code pass" crash? On January 5, Xiang Ligang, a well-known observer of China's communications industry, said in an interview with Red Star News that the two collapses of Xi'an one-code pass reflected problems in the construction of health code systems and server support capabilities.

Xiang Ligang suggested that in order to ensure the stable, efficient and safe operation of various data communication infrastructure under the normalization of epidemic prevention and control, "the government needs to attach importance to the construction of smart cities, increase capital investment, and at the same time strengthen the comprehensive allocation of national resources, establish relevant emergency coordination mechanisms, and avoid excessive costs for a city." ”

A well-known platform network engineer who did not want to be named suggested that the "one code pass" system can learn from the cases of "high concurrent services" that are relatively excellent in China, such as the "12306" ticket purchase service and the shopping festival flash sale activities of major e-commerce platforms.

Xi'an's "one code pass" was not passed twice in half a month

Expert: It may be caused by excessive instantaneous loads

On the morning of January 4, some Xi'an citizens reported online that the Xi'an "one code pass" system appeared to be abnormal. A local student in Xi'an told reporters that when logging on to the Xi'an "One Code Pass" page on the same day, the personal electronic identification code column only displayed the time and date, and it was impossible to open the two-dimensional code and query the nucleic acid test results.

On the afternoon of January 5, a Red Star News reporter logged on to Xi'an "One Code Pass" to inquire and found that the system had returned to normal.

A well-known platform network engineer believes that the main reason for the crash of Xi'an's "one code pass" should be that the server is overloaded instantaneously, but the relevant operation and maintenance personnel failed to predict and expand in advance in time. In addition, "from the client to the CDN node in the middle of the final server room, the number of server machines, the stability and robustness of the 1 code pass related services (high load coping ability), and after the problems in the above links, whether the relevant personnel can respond quickly and repair the problems will affect the normal operation of the 1 code pass." ”

Experts analyze the behind the collapse of Xi'an's "one code pass": or the instantaneous load is too large, you can learn from cases such as 12306

The reporter noted that on December 20, 2021, Xi'an One Code Pass collapsed due to excessive number of system visits. On the same day, the Information Office of the Xi'an Municipal Government held a press conference on the prevention and control of the new crown pneumonia epidemic in Xi'an, and Liu Jun, director of the Xi'an Big Data Resources Management Bureau, explained that the collapse of "one code pass" caused greater pressure on the network and platform due to the increase in the frequency of use.

On January 4, according to the official website of the Ministry of Industrialization and Information Technology, from December 30 to 31, 2021, Han Xia, chief engineer of the Ministry of Industry and Information Technology, went to the Shaanxi Provincial Communications Administration to conduct research on epidemic prevention and control work, stressing that Xi'an's "one code pass" should strengthen technical improvement and network expansion to ensure the safe and stable operation of the platform.

According to Xiang Ligang's analysis, the crash of Xi'an's "one code pass" may be caused by three reasons: first, the system construction is not perfect, and the load balancing is not considered enough; second, the number of servers, bandwidth capacity, cloud support capacity and other hardware capabilities are insufficient; third, it may suffer malicious network attacks.

Project outsourcing leads to poor quality?

Expert: The pattern itself is normal and reasonable

After the collapse of Xi'an's "one code pass" twice, an analysis on the Internet pointed out that the Xi'an "one code pass" project was outsourced by the government at all levels, resulting in poor project quality and eventually causing a collapse.

In this regard, Xiang Ligang said that the government is not a technology company, and it is reasonable to hand over the health code system to powerful professionals, "Xi'an Telecom itself has strong network operation capabilities, but software development, security, hardware are not its strengths, so it needs to seek more support." ”

Xiang Ligang introduced two ways for the government to seek cooperation under the current circumstances, one is that the government finds manufacturers and pools resources, and the other is that the government outsources the project to a powerful "general contractor", and the "general contractor" looks for partners according to its own capabilities. Xiang Ligang believes that in the Xi'an "one code pass" project, the government will first outsource the project to Xi'an Telecom, and then Xi'an Telecom will integrate the resources of all parties, this model itself does not have much to criticize, "Xi'an Telecom is looking for a software development company, and it is indeed a large domestic software company." ”

Experts analyze the behind the collapse of Xi'an's "one code pass": or the instantaneous load is too large, you can learn from cases such as 12306

How to avoid the "one code pass" system from crashing again?

Professionals: Learn from excellent cases such as the 12306 ticketing system

Under the situation of normalized epidemic prevention and control, how to avoid the recurrence of similar situations such as the collapse of the "one code pass" system in Xi'an?

The above-mentioned well-known platform network engineer told the Red Star News reporter that the Xi'an "one code pass" system needs to improve the technical means of development and operation and maintenance, and can learn from the case of the more excellent "high concurrent service" in China, "such as the ticket purchase service of 12306, the shopping festival second sale activities of major e-commerce websites, etc." ”

Xiang Ligang suggested that in order to ensure the stable, efficient and safe operation of various data communication infrastructure under the normalization of epidemic prevention and control, the government needs to attach importance to the construction of smart cities, increase capital investment, and "regard the construction of network infrastructure as important as road construction." At the same time, it is necessary to strengthen the comprehensive allocation capacity of national resources and establish relevant emergency coordination mechanisms, "we cannot rely solely on local forces to invest excessive costs." ”

Red Star News reporter Zhang Yanliang intern He Yu

Edited by Chai Chang

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