Explicit Batching for Distributed Objects

Although distributed object systems, including RMI and CORBA, enable object-oriented programs to be easily distributed across a network, achieving acceptable performance usually requires client-specific optimization of server interfaces, making such systems difficult to maintain and evolve. Automati...

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Vydané v:Proceedings of the International Conference on Distributed Computing Systems s. 543 - 552
Hlavní autori: Tilevich, E., Cook, W.R., Yang Jiao
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.06.2009
Predmet:
batching
Computer science
Delay
Design optimization
Distributed computing
distributed objects
Java
Middleware
Mobile communication
Network servers
Object oriented modeling
programming abstractions
RMI
Usability
ISSN:1063-6927
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Abstract Although distributed object systems, including RMI and CORBA, enable object-oriented programs to be easily distributed across a network, achieving acceptable performance usually requires client-specific optimization of server interfaces, making such systems difficult to maintain and evolve. Automatic optimization techniques, including Batched Futures and Communication Restructuring, do not work as well as hand optimization. This paper presents Batched Remote Method Invocation (BRMI), a language-level technique for clients to specify explicit batches of operations on remote objects. We have implemented BRMI for Java as an extension of RMI, with support for batches with array cursors, custom exception handling, conditionals and loops. BRMI allows common design patterns, including Data Transfer Objects and Remote Object Facade, to be constructed on the fly by clients. The performance benefits of batching operations are well known; our evaluation focuses on the usability of explicit batches, but we also confirm that BRMI outperforms RMI and scales significantly better when clients make multiple remote calls. The applicability of BRMI is demonstrated by rewriting third-party RMI client applications to use BRMI.
AbstractList Although distributed object systems, including RMI and CORBA, enable object-oriented programs to be easily distributed across a network, achieving acceptable performance usually requires client-specific optimization of server interfaces, making such systems difficult to maintain and evolve. Automatic optimization techniques, including Batched Futures and Communication Restructuring, do not work as well as hand optimization. This paper presents Batched Remote Method Invocation (BRMI), a language-level technique for clients to specify explicit batches of operations on remote objects. We have implemented BRMI for Java as an extension of RMI, with support for batches with array cursors, custom exception handling, conditionals and loops. BRMI allows common design patterns, including Data Transfer Objects and Remote Object Facade, to be constructed on the fly by clients. The performance benefits of batching operations are well known; our evaluation focuses on the usability of explicit batches, but we also confirm that BRMI outperforms RMI and scales significantly better when clients make multiple remote calls. The applicability of BRMI is demonstrated by rewriting third-party RMI client applications to use BRMI.
Author Cook, W.R.
Tilevich, E.
Yang Jiao
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  surname: Yang Jiao
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Snippet Although distributed object systems, including RMI and CORBA, enable object-oriented programs to be easily distributed across a network, achieving acceptable...
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StartPage 543
SubjectTerms batching
Computer science
Delay
Design optimization
Distributed computing
distributed objects
Java
Middleware
Mobile communication
Network servers
Object oriented modeling
programming abstractions
RMI
Usability
Title Explicit Batching for Distributed Objects
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