Shared resource

About: Shared resource is a research topic. Over the lifetime, 7536 publications have been published within this topic receiving 123491 citations. The topic is also known as: network share.

Resource sharing for replicated synchronous groupware

Abstract: We describe problems associated with accessing data resources external to the application, which we term externalities, in replicated synchronous collaborative applications. Accessing externalities such as files, databases, network connections, environment variables, and the system clock is not as straightforward in replicated collaborative software as in single-user applications or centralized collaborative systems. We describe ad hoc solutions that add to development cost and complexity because the developer must program different behavior for different replicas. We introduce a novel general approach to accessing externalities uniformly in a replicated collaborative system. The approach uses a semireplicated architecture where the actual externality resides at a single location and is accessed via replicated proxies. This approach allows developers of replicated synchronous groupware to (1) use similar externality access mechanisms as in traditional single-user applications, and (2) program all replicas to execute the same behavior. We describe a general design for proxied access to read-only, write-only, and read-write externalities and discuss the tradeoffs of this semireplicated approach over full, literal replication and the class of applications to which this approach can be successfully applied. We also describe details of a prototype implementation of this approach within a replicated collaboration-transparency system, called Flexible JAMM (Java Applets Made Multiuser).

Intelligent Monitoring for Adaptation in Grid Applications

Abstract: Grid applications access distributed, and often shared, resources. One consequence of this resource sharing is that measured application performance can vary widely and in unexpected ways. Determining the causes of poor performance, due to either anomalous application behavior or contention for shared resource use, and adapting to changing circumstances are critical to creation of robust Grid applications. Performance contracts and real-time adaptive control are two mechanisms to realize soft performance guarantees in Grid environments. Performance contracts formalize the relationship between application performance needs and resource capabilities. During execution, contract monitors use performance data to verify that expectations are met. When the contracted specifications are not satisfied, the system can choose to either adapt the application to available resources or reschedule the application on a new set of resources that can satisfy the original contract specifications. We describe an infrastructure for Grid application contract development and monitoring. This infrastructure, based on the Autopilot toolkit, provides flexible and scalable tools to assess both application and system behavior.

Resource sharing method and device

Abstract: The invention discloses a resource sharing method and device Through the application of the technical scheme, a relation chain is used for carrying out authentication control When a resource download link is generated, corresponding relation chain information is added to the resource download link, and a sharing server is used for recording and sending the resource download link When a user needs to use the received resource download link for carrying out download, authentication is carried out on the user according to the relation chain information in the resource download link, and only the user meeting corresponding friend relation of the relation chain are allowed to download specific content Therefore, a controlled resource sharing mechanism is introduced in an existing download platform, legal and orderly spread of the content is controlled, and meanwhile tracing for a resource spreading process can be achieved

Method, device and system for realizing resource sharing

Abstract: The invention relates to a method, a device and a system for realizing resource sharing by a user management device. The method comprises the following steps that: the user management device stores shared resource information which is provided by a shared resource provider to be shared with a shared resource accessor; and when the shared resource accessor accesses the shared resource, the user management device generates identification information used for accessing the shared resource according to the shared resource information and an application key and sends the identifying information tothe shared resource accessor. Therefore, if the shared resource accessor accesses the shared information in a resource management device according to the identifying information used for accessing the shared resource, the resource management device can verify the identification information used for accessing the shared resource by using the application key. The method, the device and the system can ensure that the corresponding shared resource provider can effectively control the process of sharing the provided shared resource and effectively avoid the shared resource accessor without an access authority from accessing the corresponding shared resource.

Method and apparatus for optimizing storage space allocation for computer data

Abstract: A method and apparatus for optimizing storage space allocations, using at least one processor, for computer data in distributed file systems is described. In one embodiment, the method includes processing input/output activity that is associated with computer data to determine a current state of at least one file in a distributed file system, at flush time, combining various storage space allocation decisions applied over at least one network protocol to determine a plurality of file system operations that define storage space, based on the current state of the at least one file, for the computer data and executing the plurality of file system operations on the computer data stored in the storage space.