Data Storage

S3QL is a file system that uses something like Google Storage, http://www.aliyun.com/zixun/aggregation/2467.html ">amazon S3 or OpenStack storage devices to store all of the online data. It supports Amazon S3, as well as any SFTP server, and effectively provides a dynamic and infinitely capable hard drive that can be accessed from any computer that has access to the Internet. S3QL offers ...

The so-called personal cloud storage products are well-known earlier on the various "Network hard disk", "Network u disk" in the era of cloud computing an extension of personal cloud storage can be shared, casual access and scalable, with the growing cloud storage market scale, the impact on the traditional hard disk industry is growing, personal cloud storage gradually into the heat of life 　　, do we really need personal cloud storage? Personal cloud storage products to photos, home video storage and sharing, for example, ordinary families do not have that large amount of data storage requirements, just buy mobile hdd upload ...

Challenging scientific problems in large data technology and applications Wangchenggong Chen Wei can zhang June Song Suru All this article is based on the National Natural Science Foundation of the 89th Shuangqing Forum "Large data technology and application of challenging scientific problems", respectively, on the large data acquisition, large data storage and management, data transmission, large processing,  Analysis and calculation, as well as large data applications and other topics were comprehensively reviewed. Challenging scientific problems in large data technology and applications

As Greg Schulz, a storage technology analyst, said, "Big data is unmatched and it has the capacity to carry everything." "That means there are already a number of independent storage tools on the market, designed to help storage administrators take care of the ever-expanding large data ocean." Unsurprisingly, most of them are closely related to Hadoop. SGI infinitestorage SGI Infinitestorage transforms storage into a set of hybrid systems through virtualization technology, which includes both a superb performance flash mechanism 、...

The ancients said: "I do not know the true face of Lushan Mountain, only the edge in this mountain ... ..." And cloud storage is such a thing, as an emerging product of the current storage area, for the cloud storage view, different opinions. Some people say that cloud storage is the network disk, represented by Dropbox, Google, etc. It stores the user's file data to the network for the purpose of storing, backing up and archiving the data and fulfilling my purpose of data storage, use, sharing and protection . Some people also said that cloud storage is a kind of document network storage, such as Evernote and other notes storage service. very...

The wide use of open-mail open source technology enables hackers to crack digital signatures and get mail content. The problem is how to protect your e-mail messages from being compromised through the GNU Privacy Guardian. If GPG (GPG is a set of toolset for secure communication and data storage that can be encrypted and digitally signed) is not properly used, it is not possible to obtain security recognition from the information. It is entirely possible to insert additional information before and after the data is encrypted, and it is safe to mistake the user for the data. Using cryptographic techniques to authenticate or encrypt e-mail messages is quite dangerous. ...

Research and implementation of visual data clustering based on Hadoop platform University Lin Hadoop is a distributed model for solving large data storage and analysis problems. Clustering algorithm can make the feature expression of visual data through clustering generation code book. How to complete the clustering algorithm in the distributed model is an important problem in the research and production. Aiming at the problem of large-scale visual data clustering, this paper designs and realizes the visual data clustering algorithm based on Hadoop model, which improves the efficiency of visual data clustering. This paper first introduces the visual characteristics, analysis ...

Data has always been valuable, but the past decade has shown us how much value the data carries. Therefore, the data storage and management has become the focus of the enterprise. However, the data storage should also have proper protection, and provide reasonable access rights. The advent of cloud storage provides a very viable solution to the enterprise, ensuring that access is ensured while ensuring data security and adjusted to the user's needs. 　　But this still does not completely replace the need for some internal information. Using cloud storage Some are still afraid of putting the data in without Ann ...

Hive is a data Warehouse architecture built on Hadoop. 　　It provides: • A set of convenient tools for implementing data extraction (ETL). 　　• A mechanism for users to describe their structure to the data. 　　• Support the ability of users to query and analyze massive amounts of data stored in Hadoop. The basic feature of Hive is that it uses HDFS for data storage and uses Map/reduce framework for data manipulation. So essentially, Hive is a compiler that puts the user ...

Reading and writing Extensible Markup Language (XML) with PHP can seem a bit scary. In fact, XML and all its related technologies can be scary, but reading and writing XML in PHP is not necessarily a scary task. First, you need to learn a bit about XML: what it is and what it does with it. Then, you need to learn how to read and write XML in PHP, but there are many ways to do this. What is XML? XML is a data storage format. It does not define what data is saved, nor does it define the format of the data. XML ...

Three-dimensional Virtual Earth data organization based on cloud platform Hadoop Li Shengyu Yang Qiulian Sun Zhongfang The development of cloud computing has promoted the progress of the whole industry, and also provided a great opportunity for the development of GIS. This paper constructs a small private cloud for open source cloud Platform Ha-doop, utilizes the advantage of the Hadoop hbase storage key value to the data, stores the three-dimensional Virtual Earth geoglobe format data on the HBase, realizes the three-dimensional GIS pyramid-like tile data storage to the HBase, Finally, the concrete realization scheme is given. ...

Design and implementation of private cloud storage System Ma Xiaoping the paper realizes the design idea and main point of the data storage unit. The implementation of the whole data storage subsystem is implemented in the LINUX environment using C + +; After the implementation of the system, users can upload, download and delete data through customer service, implement data storage by key value, according to rule-based Resource location strategy (multilayer mapping), locate different data storage units, and realize system by the expansion and migration of bucket.

Research and application of Information System architecture optimization based on SaaS model the main work of Han Cochi Beijing Jiaotong University: (1) The data storage scheme is designed for the sharing, universality and personalization characteristics of the multi-tenant data, and the storage model based on the traditional key value is proposed KVMBH ( Based on the hotspot metadata-driven key-value pair storage model, this paper applies it to the storage management of personalized data, constructs the data storage model of the whole SaaS environment, and verifies the correctness of the proposed scheme from two aspects of data space occupancy and usage rate. (2.

The Hadoop Distributed File System (HDFS) is a distributed file system running on universal hardware. HDFS provides a massive data storage solution with high tolerance and throughput. 　　HDFS has been widely used in a wide range of large online services and large storage systems, and has become a mass-storage fact standard for online service companies such as major web sites, providing reliable and efficient services to website customers over the years. With the rapid development of information system, a large amount of information needs to be stored reliably while it can be accessed quickly by a lot of users. Traditional ...

XWiki is an open-source wiki engine written in Java. With most features of other wikis, support wiki syntax, http://www.aliyun.com/zixun/aggregation/8254.html "> Content management, supporting attachments, Full-text search, rights Management, Use hibernate for data storage, RSS output and display external RSS feeds. XWiki also supports groovy scripting language, plug-in systems, Java EE ...

Design and implementation of a file prefetching model oriented to Distributed File System Shi Ming Liu Yi Tangge How to provide stable and efficient file I/O performance for upper level application and computation, is the hotspot of distributed File system performance research. This paper analyzes the common characteristics of the Distributed file system in the design mechanism, and proposes a general heuristic document Prefetching model based on this, and selects the HDFs platform for system implementation. The heuristic file prefetching is transparent to the upper layer, adopts the method of establishing the prefetch thread pool in the file system, and takes the data storage file of the file block as the prefetch unit, in the Distributed File Department ...

Wireless temperature monitoring system based on IoT Chen Yidong Zeng Zho-min based on CC2530802.14.5, STH15 sensor, the use of C language to construct wireless temperature acquisition system, through the RS232 to the acquisition of data uploaded to the main control machine for analysis and storage, development of server programs, Realize the real-time monitoring of the field data by remote users through the Internet. The problem of real-time data storage, fault analysis and early warning processing is solved. Wireless temperature monitoring system based on IoT

XWiki is an open-source wiki engine written in Java. With most features of other wikis, support wiki syntax, http://www.aliyun.com/zixun/aggregation/8254.html "> Content management, supporting attachments, Full-text search, rights Management, Use hibernate for data storage, RSS output and display external RSS feeds. XWiki also supports groovy scripting language, plug-in systems, Java EE ...

S3QL is a file system that uses something like Google Storage, http://www.aliyun.com/zixun/aggregation/2467.html ">amazon S3 or OpenStack storage devices to store all of the online data. It supports Amazon S3, as well as any SFTP server, and effectively provides a dynamic and infinitely capable hard drive that can be accessed from any computer that has access to the Internet. S3QL offers a ...

A large data processing algorithm for energy efficiency in heterogeneous clusters Ding, Qin Xiaolin, Liuliang, Wang Tao Spring cluster energy consumption has exceeded its own hardware acquisition costs, and large data processing needs large-scale cluster time-consuming, so how to carry out high energy efficient data processing is a problem for both the owner and the user. is also a huge challenge to energy and the environment. Existing research is generally done by shutting down some nodes to reduce energy consumption, or by designing new data storage strategies to implement energy efficient data processing. Through analysis, it is found that even the least-used nodes exist ...