Programmer Group

One of the company's original projects is the Spring MVC framework. Now we need to go to Spring cloud, so we intend to convert to Spring boot project. Because we didn't know Spring boot very well before, we record the process of the project frame ...

1. Introduction Persistence Layer Framework, java Writing It encapsulates jdbc internally, so that developers only need to pay attention to sql statement s themselves, and do not need to spend energy to deal with the complicated process of loading driver, creating connection, creating state and so on ...

log4j2 configuration 1. The name of the configuration file and its location in the project log4j 2.x version no longer supports file configurations like. properties suffix in 1.x. The suffix name of the 2.x version configuration file can only be ". xml", "json" or ". jsn&quo ...

Reprint: https://blog.csdn.net/menghuanzhiming/article/details/77744267Task requirements: Close overtime unpaid orders and invalidate order information Related technologies: Quatz Framework Timing Scheduling Realization ideas: 1. When the service starts, query the order data in the database which has ...

Workflow: With the help of computer, it can realize automatic control of process. Workflow systems: If a system has automated management of processes, it is called workflow systems.BPM(Business Process Management): Business Process ManagementBPMN(Business Process Model And Notation): Business Process ...

I. Introduction to log4j2 log4j2 is an upgraded version of log4j 1.x, which refers to some excellent logback designs and fixes some problems, thus bringing about some significant improvements. Compared with log4j 1 and logback, log4j2 has a significant performance improvement and supports asynchronou ...

1. The problem of too much self-log After running kafka for a period of time, it will find that its host disk usage is slowly increasing, check the amount of data log holdings or the threshold set before. At this time, it is kafka's own log print booster disk. The default ~/kafka_2.11-0.9.0.0/config/log4j.properties are as follows: log ...

Java Logging Framework As a Java programmer, it must be inseparable from the log framework. Now the best Java log framework is Log4j2, not one of them. According to the official test, Log4j2's asynchronous log performance is better in multi-threaded environment. In asynchronous logging, Log4j2 uses separate threads to perform I/O operations, w ...

Spring Cloud log configuration can use Log4j or logback, but logback is officially recommended. Logback is produced by the author of log4j, which is used to replace log4j. We also use logback to process logs   It is very simple to configure logback in the spring boot project. The first step is to confirm that there are logback packages in de ...

meerkat is the service monitoring and service downgrade basic component developed by iQIYI mobile service side team. It mainly solves the problem of success rate, response time and QPS index monitoring when calling external interface. At the same time, when the success rate drops below the preset threshold, the call of external interface is aut ...