Database Acid Property

Recently released Hive 0.13 ACID semantic transaction mechanism used to ensure transactional atomicity, consistency and durability at the partition layer, and by opening Zoohttp: //www.aliyun.com/zixun/aggregation/19458.html "> Keeper or in-memory lock mechanism to ensure transaction isolation.Data flow intake, slow changes in dimension, data restatement of these new use cases in the new version has become possible, of course, there are still some deficiencies in the new Hive, Hive ...

A few years ago, when people talked about the emerging NoSQL database technology, a considerable part of the view was that it was only a matter of time before NoSQL replaced traditional relational databases in large data markets. 　　Now, this prophecy has not materialized, Mitchell Kertzman's general manager Hummer Winblad that in most cases, NoSQL did not show the so-called revolutionary. As a veteran of the database, here's an excerpt from some points of view of Kertzman's video interview this week: What people need is actually SQL ...

Orient DB is a scalable document database that supports ACID transaction processing. Implemented using Java 5. Orientdb is an Open-source NoSQL database management system, written in Java, a document-type database that supports acid tx,http://www.aliyun.com/zixun/aggregation/16666.html "> Indexes,asynch queries,sql Layer ...

Zhu Yimin March 28, the West Long Chemical Co., Ltd. (hereinafter referred to as the West Gansu Chemical) was issued by the Audit Committee approved. The West Gansu Chemical Industry proposed to issue 50 million shares.　　Its prospectus shows that 2008-2010, the company's operating income increased by 14.9% annually, net profit composite growth of 16%, the average annual increase in asset size of up to 44.2%. West long Chemical Prospectus said, it is the largest professional manufacturer and supplier of chemical reagents, and has been named "National Torch Plan Key High-tech Enterprises", "National science and technology innovation-oriented enterprises", "High-tech enterprises" ...

Zhu Yimin March 28, the West Long Chemical Co., Ltd. (hereinafter referred to as the West Gansu Chemical) was issued by the Audit Committee approved. The West Gansu Chemical Industry proposed to issue 50 million shares.　　Its prospectus shows that 2008-2010, the company's operating income increased by 14.9% annually, net profit composite growth of 16%, the average annual increase in asset size of up to 44.2%. West long Chemical Prospectus said, it is the largest professional manufacturer and supplier of chemical reagents, and has been named "National Torch Plan Key High-tech Enterprises", "National science and technology innovation-oriented enterprises", "High-tech enterprises" ...

Editor's note: Jay Kreps, a chief engineer from LinkedIn, says that logs exist almost at the time of the computer's creation, and there is a wide range of uses in addition to distributed computing or abstract distributed computing models. In this paper, he describes the principles of the log and the use of the log as a separate service to achieve data integration, real-time data processing and distributed system design. Article content is very dry, worth learning. Here's the original: I joined the LinkedIn company at an exciting time six years ago. From that time ...

Editor's note: Jay Kreps, a chief engineer from LinkedIn, says that logs exist almost at the time of the computer's creation, and there is a wide range of uses in addition to distributed computing or abstract distributed computing models. In this paper, he describes the principles of the log and the use of the log as a separate service to achieve data integration, real-time data processing and distributed system design. Article content is very dry, worth learning. Here's the original: I joined the LinkedIn company at an exciting time six years ago. From that time ...

I joined the LinkedIn company at an exciting time six years ago. From that point on, we cracked down on a single, centralized database and started switching to a special distributed System suite. This is an exciting thing: the Distributed graphics database, the distributed search backend, the Hadoop installation, and the first and second generation key value data stores that we build, deploy, and still run until today. The most rewarding thing we've learned from all of this is that the core of many of the things we build contains a simple idea: log. Sometimes ...

I joined the LinkedIn company at an exciting time six years ago. From that point on, we cracked down on a single, centralized database and started switching to a special distributed System suite. This is an exciting thing: the Distributed graphics database, the distributed search backend, the Hadoop installation, and the first and second generation key value data stores that we build, deploy, and still run until today. The most rewarding thing we've learned from all of this is that the core of many of the things we build contains a simple idea: log. Sometimes ...

After the team's CSS3.0 Chinese handbook in the domestic starting, the recent popular everywhere blowing HTML5.0 and CSS3.0 spring Breeze; It seems that in this browser to ridicule each other in the era, the achievements of a lot of industry gossip topic. Years ago, Google's Chrome team came to the company to do the related exchanges, the company asked me to do a preliminary discussion plan. So I thought about it, and it said three points: Chrome for more than 12px font size support Chrome's developer tools are integrated, but less flexible than firebug ...