The execution engine is configured to receive a job from the set of jobs, to identity micro operations and dependencies within the job, and to execute the identified micro operations for the job in accordance with the identified dependencies.Sandeep Verma...
MS-SQL进程返回logical 计划给DMS(Data Movement Service),给这个逻辑计划加上数据分布的约束; Structured Computations Optimized for Parallel Execution (SCOPE) Microsoft’s的数据分析平台,结合parallel database和mapreduce两个系统。 SCOPE是给Cosmos开发的,应用于append-only文件系统。 SAP HANA 分布式内存数据库,处...
[5] A. Behm, V. R. Borkar, M. J. Carey, R. Grover, C. Li,N. Onose, R. Vernica, A. Deutsch, Y. Papakonstantinou, and V. J. Tsotras. ASTERIX: Towards a Scalable, Semistructured Data Platform for Evolving-world Models. Dist. Parallel Databases, 29(3), 2011. [6] R. Chaike...
In this study, we propose a novel hybrid shared-nothing/shared-data storage scheme for large-scale databases, to leverage the benefits of both shared-nothing and shared-disk architectures. We adopt a shared-nothing architecture as the hardware layer and leverage a parallel file system as the ...
🔹SOAP (Simple Object Access Protocol): XML-based protocol for web services, heayweight, favored for security and reliability. 🔹REST (Representational State Transfer): Uses HTTP methods, simple and easy to use, but can be resource-heavy. ...
One of the problems that we experience with today's most widespread Internet Information Systems (like WWW or Gopher) is the lack of support for maintainin... F Kappe - 《Journal of Universal Computer Science》 被引量: 71发表: 1996年 PARCAHYD: An Architecture of a Parallel Crawler based ...
Orca includes a specialized job scheduler designed from scratch to maximize the fan-out of job dependency graph and provide the required infrastructure for parallel query Opt(g0,(req0)( Imp(g0)( Ex…p((g0)( …( Imp(g1)( Exp(g1)( Exp(g1.gexpr)( …( Opt(g0.gexpr,(req0)( Opt...
Common packet-switched networks, such as the current public Internet, do not provide straightforward mechanisms for deriving such guarantees. Two approaches to the problem of bounding packet-switched network latency are presented: PWP-Sporadic, and PWP-Rate, each of which corresponds to a well-known...
Data and index information can then be read in parallel by the multiple disk heads. For example, if Table_A on filegroup f1 and Index_A on filegroup f2 are both being used by the same query, performance gains can be achieved because both filegroups are being fully used without content...
For the multiprocessor systems of the hierarchical-architecture relational databases, a new approach to data layout and load balancing was proposed. Descri... PS Kostenetskii,AV Lepikhov,LV Sokolinskii - 《Automation & Remote Control》 被引量: 26发表: 2007年 Architectures for Parallel Query Proce...