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Based on ElasticSearch multi instance architecture, realize reasonable resource allocation and separation of hot and cold data Author: "the wolf of hair", welcome to reprint and contribute Catalog Application Framework ▪ 192.168.1.51 elastic search data deployment dual instance ▪ 192.168.1.52 elastic search data deployment dual inst ...

Application scenario Regularly request the website / API, judge whether the service is available and whether the website is down according to the request response, and send a SMS to inform the administrator when there is a down time engineering service Operation platform: Alibaba cloud functional computingDevelopment language: Python 3 (small f ...

1. Overview To improve network performance optimization, it is very important to reduce latency and improve response speed. Usually, when we make a request in the browser, the header part is like this Keep alive is to keep a long connection between the browser and the server, which can be reused. It is enabled by default in HTTP 1.1. Why does ...

Every network request is a request. Request is the encapsulation of URL, method, header and body. It is also the encapsulation of request line, request header and entity content in Http protocol public final class Request { private final HttpUrl url; private final String method; private final Headers headers; private final RequestB ...

Ali P7 Mobile Internet Architect Advanced Video (Updated Daily) Free Learning Click: https://space.bilibili.com/474380680This article will use Glide to illustrate the Picture Loading Frame selection: First, add dependencies implementation 'com.github.bumptech.glide:glide:4.5.0' annotationProcessor 'com.github.bumptech.glide:compiler:4.5.0' The ...

Today, Jenkins was configured to build a Git project. The following problems were encountered, which made it impossible to build Parsing POMs Injecting SonarQube environment variables using the configuration: sonarqube-5.5 FATAL: null java.lang.StackOverflowError at sun.reflect.GeneratedMethodAccessor7533.invoke(Unknown Source) at sun. ...

Problem: as soon as the kfana container built by k8s is restarted, the configured dashboard and added users will be reset. As a result, there is no data persistence in grafana.Solve: 1. Establish persistent flower storage pvc in the cluster first Then hang it in the container / var directory volumeMounts: - mountPath: /var name: ...

Background: When writing a Golang program for a long time, I didn't consciously write unit tests until I later wrote an independent project. I slowly found out how efficient and convenient it is to write unit tests for a function. Then I'll review the tests in Golang together. UnitTest Unit testing is a relatively efficient self-testing metho ...

1. Preface Recently, we are optimizing the visiting speed of the website and opening http2 protocol for the website. What are the advantages of this protocol? As follows: http2 is the next generation transport protocol, which will be widely used in the future, which is a trend. http2 has the feature of multiplexing, which means to access re ...

linux distribution system directory naming rules Use root file system structure and FHS hierarchy. linux system is strictly case sensitive, and the system directory inherits this feature. "/: root directory, the highest level directory of all directories / bin: the basic command storage directory available to all users / sbin: only the ...