Data Access

Non-structured data access for cloud storage Xie into Chen Xiangdong unstructured data is exploding, and existing storage technology needs to be improved in the aspects of I/O throughput capability, scalability and manageability. Based on the theory of cloud storage and reliability, the storage system establishes a distributed storage model of unstructured data and designs a reliability function. The Distributed relational database management system (RDBMS) is used as the storage base, and the unstructured data is stored directly in the data table, which realizes the separation of unstructured data and metadata.

A secure data access mechanism for Cloud tenants Chunming Rong hongbing Cheng at this monitors, we a a secure data access mecha Nism based on identity-based encryption and biometric ...

First, the entrance of the Internet access to computers, mobile phones, tablets, smart TV, such as our daily use of the Internet equipment, at home is to go through the router to the Internet. 　　The traditional home router is simply the data to the package, and the computerized intelligent route will certainly be the processing of these data, such as to some specific download package to speed up, some specific data access transfer, some ads to direct shielding and so this can be done. Two or one units 24 hours open, with thunder, remote operation of the computer above this analogy I think is very appropriate ...

Distributed Ho Deng of low cost cloud storage data for load balancing in IoT environment, Min, in order to meet the requirement of node mobility and real-time data access in IoT terminals, this paper proposes a storage server selection method combining data access point location and access frequency with low access cost according to the pattern of replica distribution and access in cloud storage.   Considering the impact of load on the access cost, the load balancing mechanism is proposed by dynamically updating the cost matrix. Keywords: cloud storage, Internet of things, replica distribution, load ...

HDFS (Hadoop Distributed http://www.aliyun.com/zixun/aggregation/19352.html"> File System) is a core sub-project of the Hadoop project and is the foundation of data storage management in distributed computing. To be honest, HDFS is a Good distributed file system, which has many advantages, but there are also some shortcomings, including: not suitable for low-latency data access, can not efficiently store a large number of small files, no ...

Study on elastic control of multi-tenant data storage System in cloud Shandong University Huliansu This article focuses on metrics related to data access time. The above two conditions should be ensured in the data elastic control, which increases the difficulty of the elastic control. 2 in order to achieve the flexible control of a multi-tenant storage system, we need to be able to propose control strategies to determine which data to move and where to move. Large-scale application load fluctuation, adaptive load balancing requirements can be scale-out at peak load, load low peak scale-down. This moves through data (for example, PA ...).

Secure access scheme for outsourced data based on Trusted Platform Module Shang Donglai Peng Yang Yuli in order to improve the security of packet data access mechanism in cloud computing, this paper improves a tree based key management scheme, which is suitable for data owner-write-user-read/write scenarios. For malicious users in the scene, the new mechanism introduces the Trusted Platform Module (Trusted Platform module, TPM), mainly solves the original scheme in the data access process by session key, data addition/decryption ...

Meteoio is a cross-platform c++++ library. Mainly provide meteorological data format and protocol independent data access, secure and reliable I/O processing for users as simple as possible to prepare the data used (including: transparent caching, filtering, resampling and spatial interpolation), provide a high degree of modularity, the implementation of a single element library can easily be replaced/extended/increased. Meteoio 2.1.2 This version of the main performance improvements, speed increased by 8 times times. Several bugs have been repaired and some plug-ins have been improved in order to get more efficient data available. has implemented some new ...

Meteoio is a cross-platform c++++ library. Mainly provide meteorological data format and protocol independent data access, secure and reliable I/O processing for users as simple as possible to prepare the data used (including: transparent caching, filtering, resampling and spatial interpolation), provide a high degree of modularity, the implementation of a single element library can easily be replaced/extended/increased. Meteoio version 2.1.1 improved Windows and Mac packages, and in code and build systems have done multiple cleanup, fixed multiple legacy hacks, some speed ...

An approach for Data Storage security in Cloud Computing The main objectives of this monitors are, 1) to prevent data access from Unau thorized access, it propose a distributed scheme to provide ...

JasperReports 4.1.1 This release introduces a new http://www.aliyun.com/zixun/aggregation/34049.html ">web framework in the report to support the new version library and data access APIs, Enhanced sorting and filtering list components and a new component for rendering geographic maps enhance interactivity. Old, obsolete code has been deleted, with new Java language features, such as generics. JasperReports ...

Research on the optimization of data storage model for general review system based on SaaS Feng Han Cochi is focused on the data storage issues that need to be addressed when building a universal review system based on SaaS mode. Based on the traditional data storage model, the storage utilization rate and the low performance of data access, combined with the idea of heat index, data segmentation theory and metadata-driven, this paper This paper proposes a storage solution based on thermal metadata driven key value pairs for customizable SaaS systems, which can be used to differentiate calls;

TEIID is a data virtualization system that allows applications to use data stored from multiple heterogeneous data. TEIID consists of a bunch of tools, components, and services that create and execute bidirectional data. Real-time distributed data sources, both abstract and federated, data access, and integration, require no replication or other means of moving data system records. TEIID is a data virtualization system This allows applications to use data from M ...

High-efficient index method of massive data in cloud computing Huang Peng Yu Pengxiaoning the mass and distribution characteristics of data in cloud computing environment, and the existing distributed B-Tree indexing method has a low access rate problem, this paper proposes an efficient index method of massive data in cloud computing environment, which is based on the distributed B-Tree, Log is used to record the splitting history of nodes, and efficient concurrent access to distributed B-trees based on node splitting history.  Experimental results show that it can effectively improve the data access and indexing efficiency in cloud computing environment. Efficient indexing method of massive data in cloud computing

iODBC is a cross-platform driver manager for http://www.aliyun.com/zixun/aggregation/11208.html ">microsoft ODBC 2.x and 3.x versions, X/open SQL Data access specification for the CLI. It is a solution for database center and stand-alone platform development, and the SDK is ported to Linux and other operating system platforms based on WIN32 ODBC applications. iODBC ...

Recently looking at "hadoop:the definitive Guide", streaming data access to its distributed file system HDFs is not understandable. Stream based data read and write, too abstract, what is called based on flow, what is flow? Hadoop is written in the Java language, so to understand the streaming Data Access of Hadoop, you have to start with the Java streaming mechanism. Flow mechanism is also a Java and C + + in an important mechanism, through the flow allows us to ...

Research and implementation of erasure code technology in cloud file system Cheng, Zhong, Meng, Li Liangshu, and Rong, Yang Tingting, Depei, Guan, Chen Wei the paper studies the application of the Erasure code technology in cloud file system, from six aspects, such as the type of erasure code, encoding object, encoding timing, data change, data access mode and data access performance, The design of erasure code in cloud file system is explored to enhance the storage model of cloud file system. On the basis of this, the paper designs and realizes the prototype system of the Erasure code, and proves that the erasure code can effectively protect the data availability of the cloud file system and save ...

HDFS (Hadoop Distributed File System) is the core of the Hadoop project, is the basis of data storage management in distributed computing, and frankly HDFS is a good distributed file system, it has many advantages, but there are some disadvantages, Includes: not suitable for low latency data access, inability to efficiently store large numbers of small files, no support for multiple user writes, and arbitrary modification of files. When the Apache Software Foundation was established, HDFs had been trying to improve its performance and usability, and frankly, it might ...

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...

Gemini chief Technology Officer Joe Coyle listed six questions for future IaaS vendors before choosing the IaaS vendor. For us to better grasp the situation, so as to obtain the best possible benefits for ourselves. 1. What if your cloud computing resources are not available? Although cloud computing is still fairly stable, like disaster recovery and high-availability issues in the IaaS data center, it is appropriate to find a way to target a cloud environment that can be implemented or used. ...