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Context&log items context Method to cancel goroutine in general scenarios var wg sync.WaitGroup var exit bool func worker(exitChan chan struct{}) { LOOP: for { fmt.Printf("work\n") time.Sleep(time.Second) /*if exit { break } */ select { case <- exitChan: break LOOP ...

Installation and differences Please refer to my last article for Zookeeper installation http://www.cnblogs.com/woxpp/p/7700368.html   Service provision and consumption based on Nginx 　　 Service registration and discovery based on zookeeper 　　 The load balance of zk can be adjusted. Nginx is only able to adjust the weight, and other things t ...

quick get start install Docker installation single Kafka docker pull wurstmeister/zookeeper docker pull wurstmeister/kafka docker run -d --name zookeeper -p 2181:2181 wurstmeister/zookeeper docker run -d --name kafka -p 9092:9092 -e KAFKA_BROKER_ID=0 -e KAFKA_ZOOKEEPER_CONNECT=Host computer IP:2181 -e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://127 ...

There have been some delays in updating these days. Sorry, everyone. In the previous article, we briefly introduced the DotNetty communication framework and the implementation of loop (Echo) communication based on DotNetty. Let's recall the entire process of the previous project: When the server starts, bind and list ...

1. introduction In a distributed system, a service can start multiple replicas. When multiple replicas do one thing at the same time, there will be a problem of parallel. If there is a problem of data serial number duplication when new data is added, there are many ways to solve this problem, such as distributed locks, message queues, etc., in ...

Preface: Reader's Letter is a question and answer column opened by the old HBase store, which aims to solve HBase-related problems frequently encountered in the work for more small partners.The store will try its best to help you solve these problems or give you a help. The store hopes this will be a small platform to help each other.If you hav ...

Hello, I'm miniluo. For positions requiring distributed experience, interviewers always like to ask questions about distributed locks. Recently, I have the honor to participate in the company's interview, and I often ask about the knowledge of distributed locks. Most of the candidates' answers are more limited to using, and they have not though ...

RPC process details Implementation content json serialization zookeeper implements service registration on the server side and service discovery and load balancing on the client side Automatically scan the interface provided by the server and register it in zookeeper Automatically generate client dynamic proxy objects socket communication M ...

Key contents Three zookeeper nodes are required Four solr nodes. Using pseudo distributed to implement solr cluster. Three zookeeper instances and four tomcat instances are required, which can be simulated on a virtual machine. More than 1G memory is recommended for virtual machines. Solr instance building Step 1: crea ...

Publishing service ServiceBean Release entrance ServiceBean implements the afterpropertieset() method of the interface InitializingBean public void afterPropertiesSet() throws Exception { //Set provider, application, registers //Publishing service if (!isDelay()) { export(); } } If the service has ...