F. E. Bustamante. The Active Streams Approach To Adaptive Distributed Applications and Services. PhD thesis, Georgia Institute of Technology, November 2001.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....allowing services to register with a common substrate that provides basic services discovery, resource management, security. Although most such frameworks rely on static component linkages, a growing number of systems (Active Frames [23] Eager Handlers [33] Ninja [28] Active Streams [4], CANS [12] Partitionable Services [16] Conductor [21] and a recent version of Globus [9] advocate a more dynamic model, where components are combined at run time, based on the current state of the environment and QoS requirements of the clients. This dynamic model enables applications to ....

F. Bustamante and K. Schwan. Active Streams: An Approach to Adaptive Distributed Systems. In HotOS, 2001.

....integrating functionality embodied in components possibly running across multiple administrative domains. Although most such frameworks have traditionally relied upon a static model of component linkages, a growing number of approaches (e.g. Active Frames [16] Eager Handlers [26] Active Streams [3], Ninja [23] CANS [8] Smock [9] Conductor [22] and recent work on Globus [7] have advocated a more dynamic model, where the selection of components that make up the application and their location in the network ( deployment ) are decisions that are deferred to run time. Dynamic ....

....harder than traditional mapping and optimization problems in parallel and distributed systems, which tend to focus on a subset of the concerns of requirement (ii) above. This complexity is also the reason that existing dynamic frameworks have either completely ignored the planning problem [16, 26, 3], or have addressed only a very limited case [23, 8, 9, 22, 7] This paper addresses this shortcoming by proposing a model for the general planning problem, referred to as the Component Placement Problem (CPP) and describing an algorithm for solving it. The model aims for expressiveness: ....

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F. Bustamante and K. Schwan. Active Streams: An approach to adaptive distributed systems. In HotOS-8, 2001.

....data integrity, and confidentiality in a fashion that is customized to the specific networks under use. Currently, such adaptation is ultimately the responsibility of the application developer, although researchers are beginning to look at infrastructure level support in certain contexts [7, 3, 6, 18, 2, 13]. However, few proposed techniques are applicable to general purpose applications, and have rarely taken security considerations into account. In this paper, we describe a novel adaptation framework, partitionable services, which attempts to address these shortcomings. Our framework enables ....

.... which assume that the application structure is more or less fixed and adaptation is achieved by altering the internal behavior of one or more of the components (e.g. changing an internal algorithm) The second class of approaches, exemplified by systems such as Active Frames [18] Active Streams [2], Eager Handlers [28] and our CANS [13] has focused on external behaviors looking at the adaptation of data streams flowing between static application components using application specific filters that can be dynamically introduced and placed at appropriate places in the network. The ....

F. Bustamante and K. Schwan. Active Streams: An Approach to Adaptive Distributed Systems. Proc. 8th Workshop on Hot Topics in Operating Systems (HotOS-VIII), 2001.

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F. Bustamante, G. Eisenhauer, P. Widener, K. Schwan, and C. Pu. Active Streams: An Approach to Adaptive Distributed Systems. In Proceedings of the 8th Workshop in Operating Systems (HotOS-VIII), Elmau/Oberbayern, Germany, May 2001.

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Fabin E. Bustamante, Greg Eisenhauer, Patrick Widener, Karsten Schwan, and Calton Pu, "Active streams: An approach to adaptive distributed systems," in Proc. 8th Workshop on Hot Topics in Operating Systems (HotOS-VIII), 2001.

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F. E. Bustamante, G. Eisenhauer, P. Widener, K. Schwan, and C. Pu. Active streams: An approach to adaptive distributed systems. In Proceedings of the 8 Workshop on Hot Topics in Operating Systems, 2001.

.... for data streaming applications that include multimedia, visualization, or operational information systems, research has demonstrated the utility of placing services like data mirroring [6] or scheduling [11] onto network processors and or at various host nodes along a communication path [4, 16]. Targeting data streaming applications, our research concerns the movement of selected stream processing actions stream handlers from host nodes onto network processors associated with them. The services placed onto such attached network processors (ANPs) 1) address large data ....

F. Bustamante, G. Eisenhauer, P. Widener, K. Schwan, and C. Pu. Active Streams: An Approach to Adaptive Distributed Systems. In Proc. of 8th Workshop HotOS-VIII, Elmau /Oberbayern, Germany, May 2001.

.... at about 8; 000 per hour [5, 25] In response, the systems community has identified as an important focus for research the design of computing systems capable of adapting to predictable changing environments [2, 11, 12, 20] and, in this context, introspection has proven to be a useful approach [3, 4, 13, 17, 18, 23]. Introspection is the ability to continuously monitor system behavior and adapt to changing conditions. Central to the process of providing introspection is the collection, aggregation, and processing of monitoring data. Probes are inserted in different parts of the systems to collect raw ....

Fabian E. Bustamante, Greg Eisenhauer, Patrick Widener, Karsten Schwan, and Calton Pu. Active streams: An approach to adaptive distributed systems, May 2001.

....the underlying platform; and, since the mapping of components to resources in dynamic environment is too complicated, it should relieve programmers of this task. In this pa Intermediate node Client 1 Server B A C . Figure 1. Making a stream active. per we propose Active Streams [2], a middleware approach and its associated framework for building distributed applications and services that exhibit these characteristics. With Active Streams, distributed systems are modeled as being composed of applications, services, and data streams. Services define collections of operations ....

F. E. Bustamante and K. Schwan. Active Streams: An approach to adaptive distributed systems. Tech. report, College of Computing, Georgia Institute of Technology, Atlanta, GA, June 1999.

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F. E. Bustamante. The Active Streams Approach To Adaptive Distributed Applications and Services. PhD thesis, Georgia Institute of Technology, November 2001.

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Fabian E. Bustamante. The Active Streams Approach to Adaptive Distributed Applications And Services. PhD thesis, Georgia Institute of Technology, November 2001.

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F. E. Bustamante. The Active Streams Approach to Adaptive Distributed Applications a nd Services. PhD thesis, Georgia Institute of Technology, 2001.

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