Programmer Think

docker-compose Docker compose project is the official open source project of docker, which is responsible for the rapid arrangement of docker container clusters By writing a docker compose file, you can start / stop / update multiple services at the same time (you can define dependencies and start services in order) Docker compose divides th ...

Reprint: https://my.oschina.net/u/4455409/blog/5474550 Git should be familiar to everyone. Skillfully using git has become a basic skill of programmers. Although there are cow X client tools such as Sourcetree at work, which makes it convenient to merge code. But job interviews and some scenes that need to show personal strength still need us t ...

std::vector source code analysis Observe the STL design from the perspective of source code, and the code is implemented as libstdc++(GCC 4.8.5) Because we only focus on the implementation of vector, and the implementation of vector is almost all in the header file, we can use such a method to obtain relatively fresh source code // main.cpp #in ...

Enter the new project team and use minio tools in file storage. Therefore, find relevant materials online and learn minio related knowledge, features, application scenarios, storage architecture and basic concepts in combination with the use of minio in the project. On this basis, actually deploy and build minio services locally and integra ...

1.Symbol Symbol is a new basic type; The main function is to define unique attribute names. This feature can also be used to protect private variables. Because the outside world cannot generate the same symbol, it cannot be accessed; If you want to reuse this symbol, you can use the static method symbol for(value: string)； The Global Registr ...

paper address: http://nil.csail.mit.edu/6.824/2021/labs/lab-kvraft.html preface Before implementing Lab3, it is suggested to implement Lab3 in combination with the implementation of Lab2 and the Raft paper, that is, to build a fault-tolerant key / value storage service based on the Raft library implemented by Lab2. start Overall architecture ...

paper address: http://nil.csail.mit.edu/6.824/2021/schedule.html MapReduce principle Start MapReduce and cut the input file into files with a size of 16-64MB. Then start the user program on a group of multiple machines One copy will become master and the rest will become worker The master assigns tasks to the worker (M map tasks and R reduce t ...

Transfer from Explain MySQL data types in detail , the content is slightly modified. integer data type Number of bytes Signed minimum Signed maximum Unsigned minimum Unsigned maximum TINYINT 1 -128 127 0 255 SMALLINT 2 -32768 32767 0 65535 MEDIUMINT 3 -8388608 8388607 0 16777215 INT 4 -2147483648 2147483647 0 4294967295 BIGINT 8 ...

Running logic of kubebuilder summary The following is kubebuilder's Architecture diagram . You can see that the outermost layer is driven by a component called Manager, which contains multiple components. The mapping relationship between gvk and informer is saved in the Cache, which is used to Cache kubernetes objects through informer. The Con ...

Construction steps Here, the database connection pool, springmvc, mybatis and service are created separately, and then import is integrated into ApplicationContext xml New projectGuide PackageCreate external file dB propertiesConfigure spring Dao xml: a. Associated database file b. Configure database source c. Configure bean sqlSessionFactory ...