Are Virtualized Overlay Networks Too Much of a Good Thing?
نویسندگان
چکیده
The majority of recent high-profile work in peer-to-peer networks has approached the problem of location by abstracting over object lookup services. Namespace virtualization in the overlay layer provides load balance and provable bounds on latency at low costs. We contend that namespace virtualization comes at a significant cost for applications that naturally describe their data sets in a hierarchical manner. Opportunities for enhancing browsing, prefetching and efficient attribute-based searches are lost. A hierarchy exposes relationships between items near to each other in the topology; virtualization of the namespace discards this information even if present at client, higherlevel protocols. We advocate encoding application hierarchies directly into the structure of the overlay network, and revisit this argument through a newly proposed distributed directory service.
منابع مشابه
Too much of a good thing is wonderful? A conceptual analysis of excessive examinations and diagnostic futility in diagnostic radiology.
It has been argued extensively that diagnostic services are a general good, but that it is offered in excess. So what is the problem? Is not "too much of a good thing wonderful", to paraphrase Mae West? This article explores such a possibility in the field of radiological services where it is argued that more than 40% of the examinations are excessive. The question of whether radiological exami...
متن کاملA Novel Caching Strategy in Video-on-Demand (VoD) Peer-to-Peer (P2P) Networks Based on Complex Network Theory
The popularity of video-on-demand (VoD) streaming has grown dramatically over the World Wide Web. Most users in VoD P2P networks have to wait a long time in order to access their requesting videos. Therefore, reducing waiting time to access videos is the main challenge for VoD P2P networks. In this paper, we propose a novel algorithm for caching video based on peers' priority and video's popula...
متن کاملA Novel Caching Strategy in Video-on-Demand (VoD) Peer-to-Peer (P2P) Networks Based on Complex Network Theory
The popularity of video-on-demand (VoD) streaming has grown dramatically over the World Wide Web. Most users in VoD P2P networks have to wait a long time in order to access their requesting videos. Therefore, reducing waiting time to access videos is the main challenge for VoD P2P networks. In this paper, we propose a novel algorithm for caching video based on peers' priority and video's popula...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002