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Docker Docker architecture Conceptual analysis of Docker Run steps of Docker Why is Docker faster than virtual machines docker has fewer abstraction layers than virtual machines docker uses the kernel of the host to avoid booting. Install Docker Installation requirements To install Docker Engine, you need a maintaine ...

preface         After migrating a single application to a distributed framework, it is likely to encounter such a problem: the system has only one control unit, which will call multiple computing units. If a computing unit (as a service provider) is unavailable, the control unit (as a service caller) will be blocked and eve ...

Log is a good thing to locate historical problems, but there are too many records, do not scroll, and do not remove the old total disk burst. If the logs are output by the log framework, such as Log4j or Logback, you can scroll the logs and delete the old archived log files by selecting an Appender with scrolling feature. However, there are log ...

Poor students can only afford new preferential servers from cloud manufacturers. If they want to play distributed, they can only build cross cloud clusters. However, it is not a cloud manufacturer that is not under the same vpc network. I hereby record many pits Two servers, one Qingyun 4c8g and one Tencent cloud 2c4g 1. Install Docker sudo ...

1 Introduction to LVS 1.1 introduction to LVS The architecture and principle of LB cluster is very simple, that is, when the user's request comes, it will be directly distributed to the Director Server, and then it will intelligently and evenly distribute the user's request to the back-end real server according to the set scheduling algor ...

catalogue What is LVS? Composition of LVS What is a cluster? Type of cluster NAT mode TUN mode LVS   DR mode Configure http load balancing in DR mode of lvs Environmental Science: Deployment: deploy LVS configuration definition cluster What is LVS? LVS - Linux Virtual Server, that is, Linux Virtual Server (virtual ...

introduction In the enterprise information application environment, the security and response speed of the server need to configure the response parameters according to the actual situation to achieve the optimal user experience. The default Nginx installation parameters can only provide the most basic services, and also need to reconcile ...

About cobbler Cobbler is a Linux server installation service. It can quickly install and reinstall physical servers and virtual machines through network boot (PXE). At the same time, it can also manage DHCP, DNS, etc. Cobbler can be managed in the command line mode, and also provides a Web-based interface management tool (cobbler Web), as wel ...

I. ingress Background: The way service exposes services is not appropriate in the actual production environment: ClusterIP Can only be accessed within the cluster. NodePort In this way, the test environment is OK. When dozens or hundreds of services are running in the cluster, NodePort Port management is a disaster. LoadBalance The met ...

Using Docker to build zookeeper cluster environment Start docker service The above situation indicates that the docker is not started and the docker service needs to be started manually service docker start This error is reported when starting the service [root@localhost ~]# docker start 722cb567ad8b Error response from daemon: d ...