Blog recommendation | effective management of data security - Pulsar Schema management

About Apache Pulsar Apache Pulsar is a top-level project of the Apache Software Foundation. It is a native distributed message flow platform for the next generation cloud. It integrates message, storage and lightweight functional computing. It adopts a separate architecture design of computing and storage, supports multi tenant, persistent stor ...

Posted on Thu, 02 Dec 2021 18:26:41 -0500 by vishakh369

Blog recommends | using Pulsar IO to build streaming data pipeline

This article is translated from the streamnational blog. Original author of the blog: Ioannis Polyzos, StreamNative solution engineer. Original link: https://streamnative.io/blog/...backgroundBuilding a modern data infrastructure has always been a difficult problem for today's enterprises. Today's enterprises need to manage large amounts of het ...

Posted on Wed, 01 Dec 2021 06:40:48 -0500 by Sven70

Introduction to docker container technology and LXC configuration

Introduction to docker First, let's introduce the difference between container and virtualization VM(VMware) creates virtual layer, virtualized operating system and virtualized warehouse on the basis of host machine and host machine operating system, and then installs applications; Docker creates a docker engine on the operating system of the ...

Posted on Wed, 01 Dec 2021 01:27:32 -0500 by 758

Apache ShardingSphere 5.0.0 kernel optimization and upgrade Guide

After nearly two years of optimization and polishing, Apache shardingsphere version 5.0.0 GA was finally officially released this month. Compared with version 4.1.1 GA, version 5.0.0 GA has been greatly optimized at the kernel level. Firstly, the kernel is completely transformed based on the pluggable architecture, and various functions in the ...

Posted on Fri, 26 Nov 2021 07:33:11 -0500 by OOP

Ubuntu 20.04 installing MySQL and configuring MySQL workbench

preface Recently, when learning Lin Ziyu's big data, I found that installing Hive for Hadoop requires using MySQL database to save Hive metadata, rather than using Hive's own derby to store metadata. In order to fill the gap in the big data column, consult the materials to complete this blog. System version: Ubuntu 20.04 1, MySQL ins ...

Posted on Sat, 20 Nov 2021 03:50:43 -0500 by andybrooke

Android AsyncTask implementation principle and tips sharing

Why use AsyncTask We all write apps on the principle that the main thread cannot run tasks that require a lot of CPU time slices, such as a large number of complex floating-point operations, large disk IO operations, network socket s, etc., which will lead to slow response of our main thread to users and even ANR, which will deteriorate the us ...

Posted on Wed, 17 Nov 2021 05:37:15 -0500 by Thatsmej

CVE-2015-1427 ElasticSearch (Groovy sandbox bypass && Code Execution Vulnerability)

Vulnerability profile After CVE-2014-3120, the default dynamic scripting language of ElasticSearch was changed to Groovy, and sandbox was added, but direct execution of dynamic language is still supported by default. This vulnerability: 1. It is bypassed by a sandbox; 2. It is a Google Code Execution Vulnerability. The reason for the vulnerab ...

Posted on Tue, 16 Nov 2021 21:03:44 -0500 by SirJinX

Introduction to Android JNI and NDK

Introduction to Android JNI and NDK Why use JNI 1, native language has better performance.2, Before the birth of Java, many libraries were written in native language, so there is no need to implement them again in Java.3, Better security: not easy to decompile. What is JNI Full name: Java Native Interface. Literally, it is the interface bet ...

Posted on Fri, 12 Nov 2021 21:53:49 -0500 by bob_rock

Chapter III Management and optimization of Apache

1. Role of Apache: http: / / is usually used when the web is accessedhttp://  ## Hyper Text Transfer Protocol http: / / hypertext transfer protocol provider software:   Apache   nginx   stgw   jfe   Tengine 2. Install Apache   dnf search Apache  # lookup   dnf install httpd.x86_64 -y   # Installation services & ...

Posted on Thu, 11 Nov 2021 16:21:53 -0500 by mrblom

What is IOC? Teach you to roll an IOC container

IoC What is IoC? IoC is the abbreviation of inversion of control. Note that it is a technical idea. It describes the creation and management of objects. Traditional development methods: for example, if class a depends on class B, it often creates a new object of class B in class A. IoC development method: we don't need to go to the new obj ...

Posted on Thu, 11 Nov 2021 04:04:13 -0500 by gobbly2100