Access to microservices Response time 5 seconds How to modify

The service must be deployed on the intranet, and there should be no security problems with inter-service calls.

**] February 7, 2013 - WeChat has just recently been updated with the latest version. The public platform has also fully opened WeChat real-name authentication, and the public with more than 500 fans, enterprises and individuals are authenticated according to the identity of the person in charge. It is understood that the WeChat public platform is slow.

You can first change the Physician Assistant License to the unit you are going to, and then register for the Physician Practitioner Certificate in the new unit. Or register as a licensed physician in the original unit (green book), and then change to the new unit you want to go to. In short, you must go "change", otherwise, your information will not go, and you will not be able to register a new unit.

Hello! It's about buying time! [The meaning of vigorously gaining time].

I don't understand the meaning of your question, and the emergency response is when they are most anxious to think of you.

In this case, the test is based on the analogy exclusion method

1) Under the condition that the program remains unchanged, modify the configuration server parameters and make comparisons.

2) In the case that the server parameters remain unchanged, modify the pressure on the server and do a comparative test.

Lei Wang, Principal Consultant at Thoughtworks, explained the concept of microservices architecture and how it affects traditional software architecture design through an Internet portal case.

A year ago, the portal cost days for every $100,000 contract signed. Their CRM structure at the time was a typical three-tier architecture, with the entire application consisting of a 400,000-line library with an active database on the backend. Although the cost of using a three-tier architecture is relatively small, as the number of functions and functions increases, the library continues to expand, the risk of modification is high, and the overall maintenance cost becomes higher and higher.

Whenever a developer commits, the required data integration and build takes 50 minutes, which means up to 9 commits per day for an 8-hour working day. However, for the sake of the stability of the system, the continuous integration process should be avoided as much as possible, so the delivery ability of the entire team is limited. In addition, it takes 3 days from preparing the deployment package to going live, and it takes 3 days for users to actually use the deployment package to realize the value.

And if you add new people and develop new environments, including testing and production environments, the training cycle will be long. In response to these challenges, ThoughtWorks developed a strategy for how to transform the system within the team to meet the needs of the business.

Protect the existing system, take down the priority of developing all new features, make the most urgent changes to the system, and consult with the other departments, so that the team can keep the new energy and time on the important business.

Functional stripping. By defining new services, users can gradually access new services with some first-class mechanisms at the front end, so that small functions can be extracted from the original system and customers can access small functions.

Data decoupling. For large systems, because it is not possible to replace all systems quickly, in order to ensure that the system is still available, it is necessary to enable the data synchronization mechanism to synchronize the data in the service to the original database.

Progressive substitution. By continuously running the above strategies, the complex functions of the original system are extracted and done in a new way.

At present, the cost of signing a contract of 100,000 yuan has been reduced from days to 1 day, continuous integration construction has been reduced from 50 minutes to 18 minutes, team members have been reduced from 10 to 7, and the deployment cycle has been reduced from 3 days to 2 hours.

For each application, there may be a small set of services, each running in its own process, and the services interact with each other through lightweight mechanisms. So, how to use microservices to do system transformation?

Establish an independent environment for each service, including infrastructure, continuous integration environment, O&M, monitoring, log aggregation, and alerting.

The ever-evolving microservice development template can be modified in time to make the template more efficient.

Lightweight communication protocol.

Contract testing for consumers solves the problem of low integration testing efficiency as services increase.

The infrastructure is self-managed, helping to manage the resources you need.