Data Replication Software Review

"Csdn Live Report" December 2014 12-14th, sponsored by the China Computer Society (CCF), CCF large data expert committee contractor, the Chinese Academy of Sciences and CSDN jointly co-organized to promote large data research, application and industrial development as the main theme of the 2014 China Data Technology Conference (big Data Marvell Conference 2014,BDTC 2014) and the second session of the CCF Grand Symposium was opened at Crowne Plaza Hotel, New Yunnan, Beijing. 2014 China Large data Technology conference ...

Today, because of the soaring cost of data and the uneven level of technical managers, cloud storage has become an important initiative and direction for data storage in various institutions. As an important service in the cloud, cloud storage provides data storage and business access to various storage devices through application software through cluster application, grid technology, or Distributed file system. For data storage, there are many problems when we transition from a physical environment and a single array to a fully virtualized, highly dynamic storage environment. and data migration as the use of cloud storage side ...

Large data is one of the most active topics in the IT field today. 　　There is no better place to learn about the latest developments in big data than the Hadoop Summit 2013 held in San Jose recently. More than 60 big data companies are involved, including well-known vendors like Intel and Salesforce.com, and startups like SQRRL and Platfora. Here are 13 new or enhanced large data products presented at the summit. 1. Continuuity Development Public ...

Big data has almost become the latest trend in all business areas, but what is the big data? It's a gimmick, a bubble, or it's as important as rumors. In fact, large data is a very simple term--as it says, a very large dataset. So what are the most? The real answer is "as big as you think"! So why do you have such a large dataset? Because today's data is ubiquitous and has huge rewards: RFID sensors that collect communications data, sensors to collect weather information, and g ...

We often hear that "there are accidents in the sky", some things happen without warning, suddenly let you unprepared. For example, I wrote an article yesterday, ready to release today, only on the computer, did not save to the U disk. As a result, the computer went on a temporary strike today, unable to start. I wait for the article, can only continue to stay in the Open http://www.aliyun.com/zixun/aggregation/12740.html "> Computer hard drive, I have to write articles again, helpless ..."

This article attempts to give an appropriate perspective on artificial intelligence (AI) and review the work we have done and the achievements we have made. We have listed achievements in the field of artificial intelligence for half a century and discussed the recent IBM Watson-Dangerous Edge Challenge.

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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."

In mailbox rapid expansion process, one of the performance problems is the MongoDB database level write lock, the time spent in the lock waiting process, directly reflects the user's use of the service process delay. To address this long-standing problem, we decided to migrate a common set of MongoDB (storing mail-related data) to a separate cluster. According to our inference, this will reduce the lock latency by 50%, and we can add more fragments, and we expect to be able to optimize and manage different types of data independently. We start from Mon ...

In a recession, companies in all industries face budget pressures, especially when it comes to investing. The problem is compounded by the numerous business opportunities and potential problems associated with the new storage architecture. Therefore, for many enterprises, find the principle of IT system optimization and cost control, is the key to maintain the benign operation of the business and use the original resources to create more value. Even if the economic situation is not good, the company's four key strategic principles of IT systems will always remain unchanged, these principles for the enterprise's IT system optimization and cost control to provide the yardstick. No matter ...