10 recommended articles about Uber
- 黄舟Original
- 2017-06-15 13:39:281543browse
In the database circle, everyone knows that Uber did a big event this year, switching PostgreSQL to MySQL. At that time, there was an uproar in the community. It's been more than half a year, and I don't want to discuss with you again which of these two relational databases is better. I just want to make everyone think about the reasons behind the choice. In this incident, one of the important reasons Uber proposed for migrating is that PostgreSQL has too much IO overhead (mainly from the storage structure) in a large number of updated business scenarios. For the use of SSD or PCI-E cards, The device basically cannot tolerate write amplification, and at the same time, the following requirements are put forward: it needs to have write buffering capabilities, so that if persistence to the database fails, you can still try again later. There needs to be a way to notify downstream dependencies, and data changes must be notified losslessly. Secondary index is required. The system must be robust enough to support 7X24 services. The most important point is that SchemaLess storage support must be capable of dynamic expansion by adding servers. Adding servers not only increases available hard disk capacity, but also reduces system response time. Uber, like other Internet manufacturers, has tried to address these needs
1. Thoughts on Uber’s choice of MySQL
Introduction: In the database circle, everyone knows that Uber did a big event this year, switching PostgreSQL to MySQL, and there was a lot of noise in the community at that time. It's been more than half a year, and I don't want to discuss with you again which of these two relational databases is better. I just want to make everyone think about the reasons behind the choice.
#Introduction: A very simple PHP back-end script that can get the latest news from (a certain network). . ? // sunboys data // bi balo aruhan domdadu o los in wuber mongglo in huen egun i wuzhe // zhu tuhe re hu humen tai ban nai zha bolu ya ! link_prefix="nbsp;nbsp;o"; link_postfix="BR
3. PHP reads the html data code in the mysql database, how to read
Introduction: PHP reading How to read the html data code in the mysql database? The general reading method does not work. If it cannot be read, this is the effect http://www.hubercar.cn/Store/Store.aspx?id=7me Put the code obtained from Baidu Map into the mysql database. Something went wrong when reading it------Solution------What happened? Question. You didn’t say anything either. ---
4. php 5.2 Internal Memory Manager
Introduction: PHP 5.2 Memory Manager ? What's new in PHP V5.2, Part 1: Using the new memory manager Track and monitor PHP memory like uber-nerd Tracy Peterson (tracy@tracypeterson.com ), Freelance Writer, Consultant Tracy Pet
5. 10 Ajax-based PHP Webmail Clients since 1997
Introduction: 1. RoundCubeRoundCube Webmail is a browser-based IMAP client that provides a wealth of functions, including MIME, address book, folder operations, email search and spelling examine. RoundCube Webmail is written in PHP and requires MySQL or Postgres database support. Its UI is fully compliant with XHTML and CSS 2.2. ZimbraZimbra mentions
6. What’s new in PHP V5.2, Part 1: Using the new memory manager
Introduction: PHP 5.2 Memory Manager ?What’s new in PHP V5.2, Part 1: Track and monitor like uber-nerd with the new memory manager PHP Memory Tracy Peterson ([email protected]), Freelance Writer, Consultant Since 1997, Tracy Peterson has worked as an IT Project Manager and
7. php reads mysql database html data code, how to read
Introduction: PHP reads the html data code in the mysql database. How to read it? The general reading method does not work. If it cannot be read, what it actually needs to do is this effect http://www.hubercar.cn/Store/Store.aspx?id=7 I put the code obtained by Baidu Map into the mysql database. There was a problem while reading------Solution--------------------What went wrong. You don’t even say it----
8. Introduction to foreign CMS systems (summary)
Introduction: http://www.phpnuke.com PHP Nuke Free http://www.postnuke.com/ Post Nuke Free http://www.openeffect.com Open Effect Free http://mcyra.homeip.net/homepage/phpcms /index.htm Uber PHP CMS Free (Germany) http://www.dotvoid.com/firesite.php Fire Sit
9. Introducing 9 projects with great development potential PHP open source project
Introduction: Welcome to the Linux Community Forum, interact with 2 million technical staff> Enter 5. Another phuby Sean Huber also released another A project with the same name is also called phuby, but this has nothing to do with the one introduced above. The project address is https://github.com/huberry/phuby. This project adds several interesting functions to php
10. A very simple PHP back-end script that can get the latest news from (a certain network).
Introduction:
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