Push And Pull Data Replication

Symmetricds is a data synchronization/replication software based on a web-independent database. It is an open-source software that supports replication of multiple primary databases, filtering synchronization, network crossover in heterogeneous environments, and a single direction or two-way asynchronous data replication provided by multiple users. It uses web and database technology to replicate between real-time http://www.aliyun.com/zixun/aggregation/22.html "> relational databases and tables." The software is designed to extend ...

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 ...

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 ...

When we use a server to provide data services on the production line, I encounter two problems as follows: 1) One server does not perform enough to provide enough capacity to serve all network requests. 2) We are always afraid of this server downtime, resulting in service unavailable or data loss. So we had to expand our server, add more machines to share performance issues, and solve single point of failure problems. Often, we extend our data services in two ways: 1) Partitioning data: putting data in separate pieces ...

They graduated from the prestigious schools, from Google, Baidu, the Chinese Academy of Sciences leaving business, selling pancakes, meat sandwich, roast pig feet, sell ducks. They give up the good treatment of big companies and care about food and vegetables. In the past year, IDG Capital has invested 15 of new venture projects, and the Peking University Law master Zhang Tianyi's "New Dong rice noodles" is also in it. IDG Partner Li Feng that in the investment project IDG "made two early", one is internet finance, a young lifestyle and young entrepreneurs. "Many people have real interests and idealism, creating a different life, consumption, entertainment ...

-Our correspondent Fu Jia a few days ago, the lucky star to hand over the list of the worst since the listing of a report card, the first three quarters of the company deducted the net profit fell close to 40%. In fact, the lucky days this year has been very bad, whether it is the company's fundamentals, financial statements data, or two-tier market performance, there is no bright spot, and the original large shareholder exit, raise capital to fill the hole, overseas project hysteresis, can be interpreted as bearish. However, in August, a common directional additional, but became the starting point for the start of the valuation of the Lucky Star, a short period of two months, the company's share price has risen by more than a single, the same period ...

Dangdang as the leading domestic consumer mall, has been the majority of users support and love. And recently, Dangdang is to improve its own gross profit margin to take a series of new measures. In the digital business, the introduction of "Shop Shop" mode, Dangdang own brand "when the excellent product" also recently launched. When the excellent product is Dangdang under the clothing, bedding and other manufacturing plant OEM, Dangdang brand authorized Business website, and Dangdang sell other brands of goods are different, when the main sale of excellent products are printed "When excellent product" logo brand. At present, when the excellent product has been ...

Consumers are usually more likely to prefer personalized products. Bring them into the supply chain and drive upstream production. One way is to create a platform for others to participate in personalized production and to analyze the data that connects the community to the user. Products produced by demand. 　　Relatively speaking, the other is small and beautiful, in the vertical field of development. Today, E-commerce is moving towards consumer to BUSINESS,C2B. In my opinion, it is consumer (consumer) rather than customer (client) because of its practical ...

Root, is the Chinese can not erase the plot, he represents a kind of native plot, when the old people will want to return to their homeland, far away, even if dead, but also to let their ashes buried in the land of their hometown. 　　Roots, in biology, is the source of plants and nutrients to absorb the transformation of the pathway, if the Chinese Internet described as a tree of heaven, then the netizen is nutrients, but her roots in where? We put the history of the Chinese Internet, pull back 20 years ago, a group of people hiding in a small office to start their own Internet entrepreneurship road. There is a young man called Ma Yun ...