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Preface Dubbo is a mature and widely used framework.Rao is such that in some extreme cases dubbo-based applications will also have the problem of not being able to reconnect zookeeper.Because this problem is easy to cause relatively large failures, the author has spent a lot of time to locate, and now will write a blog to share the investigatio ...

1. Introduction to zookeeper Zookeeper is a distributed service framework, which used to be a sub project of Apache Hadoop. Now it is an independent top-level project of Apache. It is mainly used to solve some data management problems often encountered in distributed applications, such as unified nami ...

1, introduction This topic provides instructions for installing the Confluent platform configuration that can be used for production in a multi node environment using the replicated ZooKeeper ensemble. With this installation method, you can manually connect to each node, download the archive file, and ...

In the previous version, netty was used to implement a simple one-to-one RPC, which required manual service address setup and was more restrictive. In this article, using zookeeper as a service registry, local service information is registered in zookeeper at service startup. When a client initiates a remote service call, the address of the ser ...

Directory navigation Preface data storage Using zookeeper based on Java API Event mechanism How to register event mechanism watcher event type What kind of operation will produce what kind of event? Implementation principle of transaction In depth analysis of the implementation principle of Watcher ...

Source link: http://shiyanjun.cn/archives/1857.html , thanks for sharing. Broadcast State is an Operator State supported by Flink. Using Broadcast State, you can input data records in a Stream of Flink program, and then broadcast these data records to each Task downstream, so that these data records ...

1, Prepare ZooKeeper Download the latest stable version from the official website: 3.5.6 . After downloading, extract it to the local location, find zoo_sample.cfg in the conf directory, rename it to zoo.cfg, and modify the data storage directory in it: #dataDir=/tmp/zookeeper dataDir=D:/hecg/apache-zookeeper-3.5.6-bin/data Start with git com ...

SpringBoot integration org.apache.Dubbo 1. Preface As an excellent RPC framework, Dubbo has a large number of users in China. Since Dubbo was donated to the Apache Foundation by Ali in February 2018, it seems that Dubbo has brought new life to Apache Dubbo under its new name.Although the Spring Clou ...

Zookeeper introduction zookeeper is a distributed service framework, which is mainly used to solve data management problems in distributed applications, such as unified naming service, state synchronization service, cluster management, distributed application configuration item management, etc. zookee ...

In the previous section, when explaining the RegistryDirectory, the dubbo administrator can modify the parameters of dubbo service provider online through the dubbo admin management system, and finally store them in the configurators catalog of the registry, and then notify the RegistryDirectory to update the relevant attributes in the URL of t ...