Day: November 15, 2023

Recently, compliance requirements have been creeping into the technical side of things. In recent times, there are always products coming to the table about implementing such and such compliance requirements. Or, do some kind of compliance questionnaire. I feel that compliance is mainly about the storage of user information, access needs to be standardized, and then users can gradually start to control their own data. And then there are some personnel, organizational changes on the technical level of the impact of changes, for example, a business has been dispatched to other departments, and then we have been and this business to share the database and other resources. At this time, the issue of cost comes to the fore, that is, the money should be counted over there. Although … Read more

This week I realized that some of the service frameworks are not written very well, especially certain Java frameworks. When the CPU usage reaches about 40%, there are a lot of timeouts. These services, CPU cores and memory capacity is not not enough, the number of working threads is not not enough. However, it is not enough to run the CPU. using Java performance tools to analyze the discovery, in fact, found that most of the working threads in Idel or Waiting state. At present, the comprehensive analysis of all the circumstances, still puzzled. NIO is also used, also used the Netty framework, but the throughput is not up. Through the analysis of threads, found that there is no particularly busy business threads. Inference should be IO or … Read more