The year was the year when the global return on assets was poor since records began. Most fund managers were proud to lose less than 5% in this year; Some people say that China's economic L has not reached the end, and no one knows how long the horizontal line will be after reaching the end; In the past few months, the President and Prime Minister of the People's Republic of China also rarely expressed on official occasions the economic downturn and the situation was stormy; The Sino US trade war continued to ferment. In fact, the common people's cognition often lags behind the environment. It can be said that the country has started macro-control as far back as 2015. At that time, a small number of industries began to feel the chill first. I remember that when companies recruited in those years, many of them jumped from shipbuilding, machinery and other industries to the IT industry. The IT industry in China belongs to the service industry and also has high-tech attributes, so it is less and slower affected by the economic crisis. But under the overall depression, can the IT industry be independent? Since the reform and opening up, especially after China's entry into WTO, foreign capital has brought technology and experience to China at the same time.

Sometimes a problem occurs in the system and needs to be handled by the original software company. The engineer does not fix the problem but directly changes the value in the background. This is to treat the symptoms rather than the root cause. As a result, many data areas and receivables are not in line with each other, and the current year is not in line with previous years. We joke that the system has been damaged by you. The data migration went on continuously. This huge project lasted more than four months. We were like a cruise in the ocean of data. From time to time, we salvaged some problem data for the business department to verify and modify. Later, we checked the new account and the old account and found that there was a difference of more than 1 yuan. I still remember Director Zhang jokingly said: "This is more than 1 yuan, I will take it!"! In fact, it is in the scope of data migration.

It is hard to avoid errors. Besides, it is not easy to check the amount of more than one billion yuan to the difference of one yuan! I only remember that we were very happy and even excited that day. The hardware part of the hardware entry into Datong is also a highlight. The entire platform involves many hardware and is deployed in the way of VMware virtualization, including servers, firewalls, switching equipment, office computers, high tempo meters, printers, all-in-one computers, televisions, etc. One of the core switches is worth 200000 yuan, which really refreshes my three perspectives. On May 18, the core server hardware arrived.

Guiyang Tap water charging software There has never been such a big fight on other projects, because the magnitude of data cannot be reached. This time, we have organized a special team to be responsible for the performance test and optimization of Datong Thermal. The test is divided into performance troubleshooting stage and stress test stage. Performance troubleshooting stage: test all the functions of the system according to the test cases, find out the functions that lead to the increase of system resources and slow response, record them, and optimize the performance problems exposed in this stage. Stress test phase: perform concurrent stress test on common functions. In this phase, we focus on several main performance indicators: response time, throughput, and system resource consumption. First, the common functions that need stress testing are determined and the test scripts are sorted out. Determine the test concurrency of 5,10,15,30,50 according to the actual use of the customer, and simulate 5010015030500 people using the system at the same time. Lock the functions with performance problems according to the concurrency test results, and determine how to allocate the resources of each virtual machine and how many Tomcat clusters to create. On site training At the beginning of August, Director Xu called me to the office to discuss the system training.

The offices of Director Zhang, Charge Supervisor, Director of Customer Service Director, and Manager Xu, Customer Service Department are almost working together. We are on call, and they are also on call. People can come with a little shout for communication. The three directors came over for a chat, and they remembered three words. One is that they can always actively accompany them when working overtime at night or on holidays. The second is that Director Xu repeatedly said that cooperation is a family. The third is that Director Zhang asked the project manager that you will not leave. I can understand the meaning of these three sentences. Director Zhang explained that people from the previous software company came here, and he also asked this sentence. They said no, and they said they would take the problem back to the company to solve it. As a result, they never saw it again after returning to Beijing. It took two days to communicate the requirements. As it was a communication, it was necessary to make a comprehensive functional analysis of the original system of Datong Thermal. Director Zhang is really a dedicated person, and he took the trouble to introduce us again and again, for fear that we might not understand or miss, which laid a solid foundation for the subsequent development and design. At the end of each day, due to the large amount of information, we have to summarize the information of the day.