The model is based on two distinct steps for an application: Map: An initial ingestion and transformation step, in which individual input records can be processed in parallel. Reduce: An aggregation or summarization step, in which all associated records must be processed together by a single entity. The core concept of MapReduce in Hadoop is […]
The Globus Toolkit is an open middleware library for the grid computing communities. These open source software libraries support many operational grids and their applications on an international basis. The toolkit addresses common problems and issues related to grid resource discovery, management, communication, security, fault detection, and portability. The software itself provides a variety of […]
There were three different cloud service models based on subscription based services 1. Infrastructure as a service( IaaS) 2. Platform as a Service (Paas) 3. Software as a Service (Saas) These three models allow users to access services over the internet, relying entirely on infrastructure of cloud service providers.
A hybrid cloud is built with both public and private clouds; Private clouds can also support a hybrid cloud model by supplementing local infrastructure with computing capacity from an external public cloud. For example, the research compute cloud (RC2) is a private cloud built by IBM.
It is built within the domain of intranet owned by a single organization. It is client owned and managed and is access is limited to owning clients and their partners. Private clouds give local users a flexible and agile private infrastructure to run service workloads within their administrative domain. A private cloud s supposed to […]
It is built over Internet and can be accessed by any user who has pad for the service. Public clouds are owned by service providers and are accessible through a subscription. Public cloud providers are: Google App Engine(GAE) Amazon Web services(AWS) Microsoft Azure IBM Blue cloud Saleforce.com They were commercial providers that offers a publicly […]
WSDL is an XML Info set based document, which provides a model and XML format for describe web services. This enables services to be described and enables the client to consume these services in a standard way without knowing much on the lower level protocol exchange binding including SOAP and HTTP. This high level abstraction […]
SOAP is a simple and lightweight XML-based mechanism for creating structured data packages that can be exchanged between network applications. SOAP provides a simple enveloping mechanism and is proven in being able to work with existing networking services technologies such as HHTP. SOAP is also flexible and extensible. SOAP is based on the fact that […]
Organizations developing grid standards and best practices guidelines. Organizations developing grid computing toolkits, frameworks and middleware solutions. Organizations building and using grid – based solutions to solve their computing, data, and network requirements. Organizations working to adopt grid concepts into commercial products, via utility computing and business on demand computing
Identify the use cases that can drive the OGSA platform components. Identify and define the core OGSA platform components. Define hosting and platform specific bindings. Define resource models and resource profiles with interoperable solutions.
