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In the previous article, we learned how to obtain host monitoring information through node exporter. However, installing monitoring is only the first step. We also need to know which monitoring indicators we need to pay attention to. This paper will introduce the host monitoring indicators related to Prometheus. 1, CPU monitoring CPU load n ...

Hello, I'm Zhang Jintao.Kubernetes, as the cornerstone of the cloud, has brought us great convenience. More and more companies have also applied kubernetes to the production environment. However, while enjoying the convenience it brings, we also need to pay attention to some potential safety hazards.In this article, I will focus on container im ...

IntroductionWith the increasing complexity and diversity of cloud computing network environment, the problem of occasional network jitter has become a major problem for cloud services. However, when dealing with such problems, the traditional network performance tools (sar, ss, tcpdump, etc.) based on kernel internal statistics and network pack ...

Hello, I'm Zhang Jintao.Articles published before me Container image security in the cloud native Era In (Series), I mentioned Kube apiserver, the core component of Kubernetes cluster, which allows components from end users or clusters to communicate with it (for example, query, create, modify or delete Kubernetes resources).In this article, we ...

Hello, I'm Zhang Jintao.Prometheus has almost become the de facto standard for monitoring and selection in the cloud native era. It is also the second project graduated from CNCF.At present, Prometheus can almost meet the monitoring needs of various scenarios / services. I have written some articles about Prometheus and its ecology before. In t ...

introduceThrough a complete example, manage logs reasonably in the Gin framework.What are the usage scenarios?Log auto scroll Split into multiple log files Log format modification waitWe will use rk-boot To start the microservices of the Gin framework.Please visit the following address for a complete tutorial:https://rkdocs.netlify.app/cnins ...

Chapter 12 Linux startup and kernel management Content overview Startup process for versions prior to CentOS 6Service managementGrub managementStart troubleshootingKernel managementLaunch process of CentOS version 7 and laterUnit introductionService management and viewingStart troubleshootingCrack root passwordRepair Grub2 1.CentOS 6 startup ...

3.5.7 sub network division Sub network division: divide a large network (with more hosts) into multiple small networks (with less hosts), reduce the number of host ID bits, increase the number of network ID bits, and borrow the network ID bit from the host ID bit The number of subnets divided is determined by the bits borrowed from the host I ...

The commonly used Security frameworks under ava mainly include Spring Security and shiro, which can provide very powerful functions, but the learning cost is high. Under microservice, authentication will be more or less invasive to the service. In order to reduce dependence, reduce intrusion and make the authentication function transparent to t ...

1, Concept: Service avalanche 2, What is Hystrix Official website information https://github.com/Netflix/Hystrix/wiki 3, Service fuse summary experiment Step 1: create the service provider springcloud-provider-dept-hystrix-8001 Step 2: modify pom.xml <!--hystrix--> <dependency> <groupId>org.springfr ...