Performance Tests of Major LDAP Implementations In Context of the Globus Replica Catalog
نویسنده
چکیده
The Globus Replica Catalog is a fundamental Data Grid service. It is important to evaluate the performance of this complex system, currently based on LDAP servers. The paper presents the results obtained during performance tests, which were done with three popular LDAP implementations (OpenLDAP, Oracle Internet Directory (OID), Netscape Directory) available today. Oracle9i is a new product and there is a requirement to test its functionality for the Globus Replica Catalog. The results show that Oracle Internet Direcotry server could be a good choice for the Globus Replica Catalog service.
منابع مشابه
PSO-Grid Data Replication Service
Data grid replication is critical for improving the performance of data intensive applications. Most of the used techniques for data replication use Replica Location Services (RLS) to resolve the logical name of files to its physical locations. An example of such service is Giggle, which can be found in the OGSA/Globus architecture. Classical algorithms also need some catalog and optimization s...
متن کاملData management and transfer in high-performance computational grid environments
An emerging class of data-intensive applications involve the geographically dispersed extraction of complex scientific information from very large collections of measured or computed data. Such applications arise, for example, in experimental physics, where the data in question is generated by accelerators, and in simulation science, where the data is generated by supercomputers. So-called Data...
متن کاملProtocols and Services for Distributed Data-Intensive Science
We describe work being performed in the Globus project to develop enabling protocols and services for distributed data-intensive science. These services include: * High-performance, secure data transfer protocols based on FTP, plus a range of libraries and tools that use these protocols * Replica catalog services supporting the creation and location of file replicas in distributed systems These...
متن کاملIncreasing performance in Data grid by a new replica replacement algorithm
Data Grid provides sharing services for very large data around the world. Data replication is one of the most effective approaches to reduce access latency and response time. In addition to the benefits, replication has costs such as storage and bandwidth consumption, especially when storage space is low and limited. Therefore, the data replacement should be done wisely. In this p...
متن کاملImproving Data Grids Performance by Using Modified Dynamic Hierarchical Replication Strategy
Abstract: A Data Grid connects a collection of geographically distributed computational and storage resources that enables users to share data and other resources. Data replication, a technique much discussed by Data Grid researchers in recent years creates multiple copies of file and places them in various locations to shorten file access times. In this paper, a dynamic data replication strate...
متن کامل