Tag：partition
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Time：2021-7-31
Author: laurenz albe is a senior consultant and support engineer of cybertec. He has been working on and contributing to PostgreSQL since 2006. Translator: Lei Yanliang, working in Henkel basic software Co., Ltd., a PostgreSQL database technology enthusiast, 10g &11g OCM, Ogg Certified Expert. In many PostgreSQL databases, you don’t need to consider or worry […]
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Time：2021-7-30
Author:Hans J ü rgensch ö nig, he has used PostgreSQL since the 1990s. He is the CEO and technical leader of cybertec. Cybertec is one of the market leaders in this field and has provided services to countless customers around the world since 2000. The second edition of PostgreSQL 9 and PostgreSQL 6 has been […]
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Time：2021-7-30
Xiaomi Pro notebook, the original win10 system, comes with a 255gb SSD and is equipped with Samsung’s 860evo (500g). It plans to take out 250g to install Linux. But because Xiaomi has its own boot, it encountered some strange pits. Record it. Production and installation of startup disk Download Image: there’s nothing to say about […]
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Time：2021-7-27
abstract: the core of million level and ten million level data processing lies in the design of data storage scheme. Whether the design of storage scheme is reasonable directly affects the operation of data crud. The overall design can consider the following aspects: data storage structure design; Index design; Data primary key design; Query scheme […]
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Time：2021-7-27
Introduction:High frequency data high-performance one-stop solution for banks, insurance, securities companies and private placement. The quotation and transaction data of L1 / L2 financial market are very important data for quantitative transaction research. With the rapid evolution of digital services, the transaction data with time-series characteristics surge, which puts forward higher requirements for the underlying […]
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Time：2021-7-26
introduction Cap theory, which I believe many people have heard, refers to: A distributed system can only meet two of consistency, availability and partition tolerance at most. Why understand cap theory? I can give many reasons. In the workplace, perhaps the most appropriate reason is that when the task given by the leader is unreliable, […]
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Time：2021-7-26
Download from CentOS official website: http://isoredirect.centos.org/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-1810.iso Click create new virtual machine and selectCustom (Advanced), and then click next; The default setting is good. Click “next”; Select “install the operating system later” and click “next”; Select “Linux” and “CentOS 7 64 bit” as the version. You can also select other versions according to your needs. Click […]
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Time：2021-7-24
This article is shared by Zheng Zhisheng, head of bilibilibili big data real-time platform. The core of this sharing is to explain the implementation of trillions of transmission and distribution architecture and how to build a complete set of preprocessing real-time pipeline based on Flink in the AI field. This sharing mainly focuses on the […]
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Time：2021-7-24
Author: LetuPen name: lottuPersonal profile: currently engaged in database architecture design and development in a game company, and once led the company to “O”; Personal blog:https://www.cnblogs.com/lottu PostgreSQL introduces the “partition” table feature, which liberates the cumbersome and inefficient use of “table inheritance” + “trigger” to realize the partition table. Adding partitions is manual SQL execution.Demonstration […]
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Time：2021-7-21
When enterprises use the big data analysis platform, they first need to migrate massive data from multiple data sources to the big data platform. Before importing data, we need to understand the basic concepts and features of dolphin DB database. According to the storage media, dolphin DB data table can be divided into three types […]
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Time：2021-7-20
catalogue 1、 Hardware overview 1. The development of computer 2. Types of computers 3. Computer system (von Neumann system) 4. Common units 2、 Common hardware devices 1. CPU classification 1. Two common brands 2. According to the number of CPU cores, it can be divided into 2. Motherboard 3. External memory (external memory, optional) 4. […]
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Time：2021-7-20
catalogue 1、 Introduction to cluster 2、 Redis cluster data partition principle 2.1 hash partition scheme 2.1.1 node redundancy partition 2.1.2 consistent hashing 2.2 redis cluster data partition scheme 3、 Build a cluster 3.1 preparation node 3.2 creating clusters 4、 Principle of node communication 4.1 visit message 4.2 communication node selection 1、 Introduction to cluster Redis […]
