HAproxy load balancing (Health Detection for back end)

Because there is a. spec file in the haproxy package, we can use the rpm command to build the ha rpm package ourselves: 53 yum install rpm-build -y 57 rpmbuild -tb /usr/src/haproxy-1.7.3.tar.gz 58 yum install pcre-devel -y 59 rpmbuild -tb /usr/src/haproxy-1.7.3.tar.gz 60 yum install gcc -y 61 rpmbu ...

Posted by peteraub on Wed, 18 Mar 2020 16:10:26 +0100

Download, installation and configuration manual of Kafka's Confluent Platform in multi node cluster environment

1, introduction This topic provides instructions for installing the Confluent platform configuration that can be used for production in a multi node environment using the replicated ZooKeeper ensemble. With this installation method, you can manually connect to each node, download the archive file, and ...

Posted by lomokev on Thu, 27 Feb 2020 08:46:28 +0100

From media platform data statistical analysis crawler [interesting headlines] simulation landing analysis details and data statistical interface details

Declaration: This article is only used for learning research, to realize data statistics and analysis of your account Catalog 1. Login process 1.1 DES encryption algorithm of login field 1.2 simulate login and obtain token 2. Video content data 2.1 all 2.2 to be reviewed 2.3 released 2.4 audit fail ...

Posted by Cerberus_26 on Thu, 27 Feb 2020 08:34:13 +0100

Fabric Block Chain Third Party CA Use Tutorial

Hyperledger Fabric (HF) provides fabric-ca tools for end users to use their own CAs.However, root CAs should be as secure as possible in production environments, such as offline root CAs, and certificate issuance agents in Hyperledger Fabric environments should be given to the middle CA.In this article, ...

Posted by de.monkeyz on Sun, 23 Feb 2020 03:39:47 +0100

LVS implementation -- LVS/NAT mode implementation

Principle and characteristics of LVS/NAT: https://blog.csdn.net/qq_35887546/article/details/104425264 1. Experiment preparation This experiment needs three virtual machines and physical machines: Virtual machine name Effect IP server1 DS 172.25.63.1 (internal network), 172.25.254.100 (external net ...

Posted by fcaserio on Fri, 21 Feb 2020 12:10:43 +0100

[Code Page] Build your own golang framework step by step from scratch

The goal of this framework is to be a generic framework, and I want it to be big and complete, so I can use it directly as a foundation template for other projects in the future, so I want to continue adding some functionality to it, just write some demo in.For this article, I'll add a queue feature. nsq There are many queues, I choose nsq.The ...

Posted by sheckel on Mon, 17 Feb 2020 00:13:00 +0100

C++Primer: Chapter 12: smart pointer weakou PTR class

Class weak_ptr Week_ptr is an intelligent pointer that does not control the lifetime of the object it points to. It points to an object managed by a shared_ptr. Binding a weakapuptr to shared apuptr does not change the reference count of shared apuptr. Once the last shared ﹐ PTR pointing to the object ...

Posted by mattock on Tue, 21 Jan 2020 09:55:43 +0100

Super Ledger Fabric Actual REST API Service [with Source Code]

Hyperledger Fabric provides software development kits/SDKs to help developers access the fabrics network and chain codes deployed on the network, but Hyperledger Fabric does not officially provide an easy-to-use REST API access interface. In this tutorial, we will learn how to use Hyperledger Fabric's SDK to develop a REST API server. 1. Overvi ...

Posted by NoSalt on Tue, 07 Jan 2020 05:39:22 +0100

k8s creates resources, and

Two ways to create resources Command-based approach: Simple, intuitive and quick to use. Suitable for temporary testing or experimentation. Profile-based approach: The configuration file describes What, that is, the state the application will ultimately achieve. Configuration files provide templates for creating resources that can be deploy ...

Posted by damianjames on Mon, 06 Jan 2020 11:45:50 +0100

Search details of elastic search (2): request body search

The previous article introduced the search based on url. This time I want to talk about a more advanced search method - Request Body Search. The search parameters are not written on the url, but sent as the requested data. The syntax of Query DSL can be used to combine more flexible searches. A simple example GET /customer/_s ...

Posted by frabble on Wed, 25 Dec 2019 16:15:46 +0100