HaProxy installation and common commands.md

Install haproxy For haproxy installation, there are a large number of resources available on the web to refer to, most commonly using yum and compiled installation. yum install haproxy CentOS comes with haproxy, but it may be an older version.A stable version of haproxy can be found on the IUS source. The main steps are as follows: (1) Configu ...

Posted on Thu, 16 Jan 2020 12:10:14 -0500 by Boo-urns

The number of shard s for dynamically expanding indexes under ES7.5

In the old version of ES (for example, version 2.3), after the number of shard s of index is set, it can't be modified any more, unless the data is rebuilt. Starting from ES6.1, ES supports online operation to expand the number of shard s (Note: index locking is also required during operation) Starting from ES7.0, in split, it is no longer nec ...

Posted on Thu, 16 Jan 2020 10:47:45 -0500 by kevinkorb

Server (CentOS 6.5) installation and configuration of FastDFS

I. Foundation FastDFS is a pure C language implementation, only supporting Linux, FreeBSD and other UNIX systems. Two core concepts of FastDFS are: Tracker and Storage node Two, purpose Set up picture server 3, Installation environment Dependence: libfastcommon-master.zip fastdfs-master.zip fastd ...

Posted on Thu, 16 Jan 2020 07:43:02 -0500 by freddy-a

Two or three things about environment variables of golang

There are many environment variables in golang. After we install go, we usually focus on GOPATH and GOROOT, as well as several environment variables related to go mod. We don't know much about other variables. If we want to know more about this language, we need to know other environment variables. Let's take a general look at the following en ...

Posted on Thu, 16 Jan 2020 01:38:38 -0500 by mark_18

Teach Application Module 3 of Fishing-Operations and Maintenance Platform (Vmware Customization Specification Paper)

###A K8S-like orchestration function enables Vmware to be automatically scaled up and resilient (by triggering resilient expansion through monitoring callbacks, the online environment is connected to hardware load balancing, and the automatically cloned host can automatically add load).The Enterprise En ...

Posted on Wed, 15 Jan 2020 20:32:14 -0500 by slands10

Kafka use summary and production and consumption Demo implementation

What is kafka Kafka official website's own introduction is: a distributed flow platform can be supported.kafka official website kafka has three key capabilities: 1. Publish / subscribe record flow, similar to message queue and enterprise information system 2. Store the record stream in a fault-tolerant and persistent way 3. Con ...

Posted on Wed, 15 Jan 2020 07:25:05 -0500 by xydra

Kubernetes cluster: binary deployment single etcd, multi node cluster

Kubernetes cluster deployment 1. Three official deployment methods2.Kubernetes platform environment planning3. Self signed SSL certificate4.Etcd database cluster deployment 5.Node installs Docker6. Deployment of flannel container cluster network7. Deploy Master components8. Deploy Node components9. Deploy a test example10. Deploy Web UI (Dash ...

Posted on Wed, 15 Jan 2020 06:52:52 -0500 by kaisaj

Job s and cronjobs of Kubernetes

I. Job (1) Job overview A Job is responsible for processing a short, one-time task, that is, a one-time task, which guarantees the successful completion of one or more pod s of a batch task. Kubernetes supports the following jobs: Nonparallel Job: usually create a Pod until its successful completion; Job with fixed end times: add the comple ...

Posted on Wed, 15 Jan 2020 04:20:31 -0500 by Megalink

Wallet development experience sharing: BTC

[TOC] BTC node building The first step of BTC is to build nodes. Because BTC is the most popular and popular, there are many articles about BTC node building on the network, or problems in synchronizing nodes. I won't go into details here (mainly there is no environment for building nodes). Here is an article: Building Bitcoin test node under b ...

Posted on Wed, 15 Jan 2020 03:54:32 -0500 by jmboblee

Dockerfile theory + practice!!!

Dockerfile overview   Dockerfile is the description file of the image file in docker. The straight white point is exactly what the image file is composed of step by step.  for example: you bought a hanger on Taobao, but the seller did not send you a complete hanger, but some components and a drawing. You assemble the hanger step by ...

Posted on Wed, 15 Jan 2020 03:25:46 -0500 by venom999