In Memory Object Database

Wind Network (ithov.com) original article: Memcached is a set of distributed memory object caching system, which can reduce the load of database in the dynamic system, and improve the system performance. Memcached is used most of the time as a front-end cache for the database, because it is less expensive than a database for SQL parsing, disk operations, and uses memory to manage data, so it can provide better performance than directly reading the database. In addition, memcached is often used as a storage medium for data sharing between servers. After studying this chapter, I believe ...

The fastest way to store a computer system is the ram traditionally used primarily as memory. As the access performance of the hard drive has deteriorated over the years, and the cost of RAM has been decreasing, many researchers have been exploring how to replace the hard disk with memory in recent years. As early as the 1980, David DeWitt and Garcia-molina and so on published a main memory database paper. Steven Robbins's article points out that the Turing Prize winner, Jim Gray, is more explicit about the idea that "memory will be a hard drive and the hard drive will become a tape."

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 ...

As a software developer or DBA, one of the essential tasks is to deal with databases, such as MS SQL Server, MySQL, Oracle, PostgreSQL, MongoDB, and so on. As we all know, MySQL is currently the most widely used and the best free open source database, in addition, there are some you do not know or useless but excellent open source database, such as PostgreSQL, MongoDB, HBase, Cassandra, Couchba ...

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.

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 ...

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 NoSQL database distributed special ...

Sqlobject is a Python database object relational mapping. For example, a library will wrap your database table in a Python class. Currently supports MySQL through the MYSQLDB package, supported by the PSYCOPG package postgresql,sqlite,firebird,maxdb (SAP DB), MS SQL and Sybase. Also supports the Python 2.4 version. SQLObject version 1.1.3 Fixes Http://www.aliyun.c ...

"Cloud" is not only a metaphor for those networked computers, but also a computational process of data that is hidden from the server as you need it, carving out the one you need from the big cloud. It's a very romantic metaphor. Cloud computing is an emerging business computing model. Using high-speed Internet transmission capabilities, data processing is moved from personal computers or servers to computer clusters on the Internet. These computers are very common industrial standard servers, managed by a large data processing center, data centers in accordance with the needs of customers to allocate computing resources to achieve with supercomputing ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host Technology Hall first, let's familiarize ourselves with the object methods that will be used. The data we use to get the last page passed over is typically used by the request object. Similarly, we can use the request object to get the uploaded file data ...