Optimizing Pub/Sub Systems by Advertisement Pruning
نویسندگان
چکیده
Supporting advertisements in large publish/subscribe services has an improving influence on the system scalability. The additional application of event routing optimizations based on subscriptions further increases the event throughput and decreases the memory usage of publish/subscribe systems. However, also advertisement-based optimizations can improve these system properties but have been widely neglected so far. In particular, no current optimizations are applicable to advertisements defined as arbitrary Boolean filter expressions. In this paper, we outline the final milestone on the way to practically support the arbitrary Boolean publish/subscribe model: We firstly develop a novel optimization approach, advertisement pruning, that is tailored to arbitrary Boolean advertisements. Secondly, we present a detailed evaluation of the optimization potential of this advertisement-based solution. We finally analyze the effects of additionally optimizing subscriptions on the advertisement pruning optimization.
منابع مشابه
Arbitrary Boolean Advertisements: the Final Step in Supporting the Boolean Publish/subscribe Model
Publish/subscribe systems allow for an efficient filtering of incoming information. This filtering is based on the specifications of subscriber interests, which are registered with the system as subscriptions. Publishers conversely specify advertisements, describing the messages they will send later on. What is missing so far is the support of arbitrary Boolean advertisements in publish/subscri...
متن کاملEarly Profile Pruning on XML-aware Publish/Subscribe Systems
Publish-subscribe applications are an important class of contentbased dissemination systems where the message transmission is defined by the message content, rather than its destination IP address. With the increasing use of XML as the standard format on many Internet-based applications, XML aware pub-sub applications become necessary. In such systems, the messages (generated by publishers) are...
متن کاملModel Checking Publish-Subscribe Systems
While publish-subscribe systems have good engineering properties, they are difficult to reason about and to test. Model checking such systems is an attractive alternative. However, in practice coming up with an appropriate state model for a pub-sub system can be a difficult and errorprone task. In this paper we address this problem by describing a generic pub-sub model checking framework. The k...
متن کاملBridging the HLA: A Case Study in Composing Publish-Subscribe Systems
The recent popularity of publish-subscribe (pub-sub) system architectures has led to a desire for a refined architecture that supports the composition of pub-sub systems. One proposed solution links such systems using a special bridge component that acts as a mediator, passing events between the systems. The bridge appears to be an ordinary pub-sub component to each system, effectively serving ...
متن کاملAdapting Distributed Real-Time and Embedded Pub/Sub Middleware for Cloud Computing Environments
Enterprise distributed real-time and embedded (DRE) publish/subscribe (pub/sub) systems manage resources and data that are vital to users. Cloud computing—where computing resources are provisioned elastically and leased as a service—is an increasingly popular deployment paradigm. Enterprise DRE pub/sub systems can leverage cloud computing provisioning services to execute needed functionality wh...
متن کامل