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Redis distributed Session Spring-Session Spring seesion solves the problem of sharing distributed session s. introduce Spring Session is one of the projects of spring. GitHub address: https://github.com/spring-pro. Spring Session provides a perfect solution for creating and managing servlet httpsessions. function spring Se ...

Full text overview Why need hystrix hystrix official website address github Hystrix is also netfix's contribution to distributed systems. Similarly, it has entered the non maintenance phase. Not maintaining does not mean being eliminated. It can only show that the new technology is constantly iterative. The brilliant design is still wor ...

introduce precondition This tutorial assumes that RabbitMQ has install And run in Standard port (5672). If you use different hosts, ports, or credentials, you need to adjust the connection settings. Where can I get help If you have problems reading this tutorial, you can mailing list Or RabbitMQ community Slack contact us. ...

In the previous section, we introduced reverse proxy, and we know that Reverse Proxy means that a proxy server accepts a connection request on the internet, forwards the request to the server on the internal network, and returns the result from the server to the client requesting a connection on the internet. The proxy server is now externally ...

I Environmental Science: 1.Ubuntu20 2.Hadoop3.1.4 3.Jdk1.8_301 II Specific steps Pull the latest version of ubuntu imageUse mount to transfer jdk,hadoop and other installation packages to the mount directory through xftp or using the command line scp command.Enter the ubuntu image container docker exec -it container id /bin/bashUpdate a ...

1, FastDFS components and other nouns 1,tracker server Tracking server: used to schedule requests from clients. And record the information status of all storage groups and storage servers in memory. 2,storage server Storage server: used to store files (data) and file attributes (metadata) 3,client Client: the initiator of the service re ...

Distributed transaction Monomer application In a single application, a business operation needs to call three modules to complete. At this time, the consistency of data is guaranteed by local transactions. Microservice application With the change of business requirements, individual applications are divided into micro service applications ...

preface This article mainly analyzes the source code of several main operations of XXL job. 1. Create actuator - dispatch center background On the background admin page, add an actuator. be careful: Select "automatic registration" (automatic registration method is introduced here)AppName corresponds to xxl.xml configured in the pr ...

RMI introduction RMI (Remote Method Invocation) model is a distributed object application. Using RMI technology, objects in one JVM can call object methods in another JVM and obtain the call results. The other JVM here can be on the same computer or a remote computer. Therefore, RMI means a Server side and a Client side. The Server side usu ...

catalogue     catalogue One background Second RPC 1. How to call other people's remote services? How to call remote services transparently? 1.2} how to encode and decode messages? 1.3 communication 1.4 # why is there a requestID in the message? 2 how to publish your own services? 3. RPC instance analysis in Hadoop 3.1 how is the co ...