List Types Of Databases

Although the "editor's note" has been available for 9 years, the popularity of Mongodb,hamsterdb is still lacking, and it has been rated as a Non-mainstream database. Hamsterdb is an open source key value type database. However, unlike other Nosql,hamsterdb, which are single-threaded and not distributed, they are designed to be more like a column store database, while also supporting acid transactions at the Read-committed isolation level. Then compare Leveldb,hamsterdb will have any advantage, here we go ...

With the rise of internet web2.0 websites, the relational database has become a very hot new field, the development of the non relational database products is very rapid. 　　But the traditional relational database in dealing with web2.0 website, especially the super large-scale and high concurrent SNS type web2.0 pure dynamic website already appeared to be powerless, has exposed many insurmountable problems, for example: 1, high configured--to the database higher concurrent reads and writes the demand WEB2.0 website to be based on user personalized information to generate real-time dynamic ...

The intermediary transaction SEO diagnoses Taobao guest cloud host Technology Hall foreign outstanding Open Source PHP Construction Station Procedure list: A large number of PHP open source (open-source code/open Source) application changed the world, changed the Internet, the following we summarized from the database to shopping, blogs and many other types of open source PHP software, 　　For web developers to refer to. Blog: WordPress WordPress is the use of PHP developed a well-known blog platform, free open source, powerful, not only for the blog building, but also ...

Author: Jorge Diaz everyone has bad habits. It can be said that bad habits are part of people's daily lives, and whether we like it or not, they all affect our daily work. In the end how to define bad habits? Bad habits can refer to those regularly occurring subconscious and subconscious behavior. Game development can be said to be a repetitive cycle or process, but how do we define the bad habits of design? This problem is as difficult as defining a game designer. We can say that game design is about designing game content and rules, while "content" includes sound, level, and ...

After more than eight years of practice, from Taobao's collection business to today to support all of Alipay's core business, and in the annual "Double Eleven Singles Day" continue to create a world record for the transaction database peak processing capacity.

In recent years, with the development of science and technology, business expansion, more and more enterprises feel losing control of the data. As one of the important core components of IT system, the database carries important information data. The data form multiplication, the data capacity growth rate is also very astonishing, lets the enterprise's data environment almost cannot bear. At the same time, the day-to-day backup, optimization, expansion, and high availability working hours of the DBA (database administrator) are cyclical, as data maintenance management becomes increasingly onerous. How can we solve the above problems? With cloud computing technology ...

With the proliferation of data volume, Mysql+memcache has not met the needs of large-scale Internet applications, many organizations have chosen Redis as its architectural complement, however, redis the use of the threshold is not low, such as not supporting SQL, here for everyone to share the Redis use of the full raiders. Redis, one of the most closely watched NoSQL databases, has been used by many well-known internet companies, such as Sina Weibo, Pinterest and Viacom. However, being born with no support for SQL makes him look difficult ...

The scalability of the system is the main reason for promoting the development of NoSQL movement, including distributed system coordination, failover, resource management and many other features. That makes NoSQL sound like a big basket that can be stuffed with anything. Although the NoSQL movement does not bring fundamental technological changes to distributed data processing, it still leads to extensive research and practice on protocols and algorithms. It is through these attempts to gradually summarize some effective database construction methods. In this article, I will focus on the distributed features of the NoSQL database ...

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. 　　Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

Author: Wu Shifu American Road Nasgrov City CIO This June, I had the honor to attend the "China Excellent CIO Decade Summit" held in Sanya, China. As can be seen from the two-day meeting, cloud computing is a hot topic in the current domestic it field. I work in the United States, obviously not in the ranks of the Chinese CIO. But to see the domestic peers in it and professional level of enthusiasm for the development of China's it happy. 　　Close-up of an article to join in the fun. The purpose of this article is to provide a practical for our domestic counterparts by comparing the application and implementation of cloud computing in China and America.