Programmer Think

In the previous article, we learned how to integrate SpringBootAdmin for monitoring and other operations by using Consul registration discovery in microservices. In this article, we learn how to integrate SpringBootAdmin in Zookeeper registry. Introduction to Zookeeper ZooKeeper is a software project of Apache Software Foundation. It provides ...

Last time we talked about Dubbo's service exposure, this time we'll look at how Dubbo calls services This article will be interpreted based on the architecture diagram of dubbo Catalog Client Start Process Dubbo Service Call Client Start Process As we all know, when a client invokes a service, only the interface has no corresponding ...

1.Zookeeper learning notes 1.1 overview Zookeeper is an open source distributed Apache project that provides coordination services for distributed frameworks. Zookeeper's working mechanism: From the perspective of design pattern: it is a distributed service management framework designed based on observer pattern. It is responsible for stori ...

1, Node JS file system Node.js provides a set of file manipulation API s similar to the UNIX (POSIX) standard. Node import file system module (fs) syntax is as follows: 2, Asynchronous and synchronous Node. The methods in the JS file system (fs module) module have asynchronous and synchronous versions. For example, the functions that ...

preface What is EFAK EFAK (Eagle For Apache Kafka, formerly known as Kafka Eagle) EFAK is an open source visualization and management software. kafka cluster can be queried, visualized and monitored. It is a tool to convert kafka cluster data into graphic visualization. Why EFAK Apache Kafka does not officially provide monitoring systems o ...

Distributed locks are usually implemented in the following ways: database Cache (e.g. Redis) Zookeeper etcd In actual development, Redis and Zookeeper are mostly used, so this article only talks about these two. Before discussing this issue, let's take a look at a business scenario: System A is an e-commerce system. At present, it is ...

Apache Kafka is an open source stream processing platform managed by Apache and written by Scala and Java. It provides unified, high throughput and low latency features for processing real-time data. Its persistence layer is essentially a "large-scale publish / subscribe message queue according to the distributed transaction log architect ...

Original link: https://blog.csdn.net/weixin_40533111/article/details/84451219 Author April day may rain ^ ^ ^, Please indicate the source for reprint, thank you preface This article is based on the latest edition rocketmq 4.3.2 Construction: 2 nodes. Node a deploys A-m and B-S, and node B deploys A-s and B-m The functional prin ...

I Source code warehouse:zookeeperBased on branch 3.4.14, the startup process of branch in windows system is analyzed.II Process analysis:Source code entryThrough zkserver From the contents of CMD executable file, we can see that the server of zookeeper is through org apache. zookeeper. server. quorum. The main of quorumpeermain class is used as ...

ZooKeeper stand-alone installation The installation directory takes / opt/share/zk as an example Create a new directory / opt/share/zk. The command is as follows: mkdir -p /opt/share/zk Enter / opt/share/zk directory and upload jdk-8u301-linux-x64 tar. GZ file Unzip jdk-8u301-linux-x64.0 tar. GZ file, the command is as follows: tar -zxvf ...