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J

John M. Tracey

Researcher at IBM

Publications -  50
Citations -  2263

John M. Tracey is an academic researcher from IBM. The author has contributed to research in topics: Cache & Server. The author has an hindex of 22, co-authored 50 publications receiving 2232 citations.

Papers
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Proceedings Article

Redundancy elimination within large collections of files

TL;DR: The scheme, called Redundancy Elimination at the Block Level (REBL), leverages the benefits of compression, duplicate block suppression, and delta-encoding to eliminate a broad spectrum of redundant data in a scalable and efficient manner.
Proceedings ArticleDOI

A method for transparent admission control and request scheduling in e-commerce web sites

TL;DR: This paper presents a method for admission control and request scheduling for multiply-tiered e-commerce Web sites, achieving both stable behavior during overload and improved response times, and presents an implementation, called Gatekeeper, using it with standard software components on the Linux operating system.
Journal ArticleDOI

Meridian: an SDN platform for cloud network services

TL;DR: This article describes the architecture and implementation of Meridian, an SDN controller platform that supports a service-level model for application networking in clouds, and discusses some of the key challenges in the design and implementation, including how to efficiently handle dynamic updates to virtual networks, orchestration of network tasks on a large set of devices, and how Meridian can be integrated with multiple cloud controllers.
Patent

Overload protection for SIP servers

TL;DR: In this article, the authors propose a method for operating a server having a maximum capacity for servicing requests, which comprises the following steps: receiving a plurality of requests; classifying each request according to a value; determining a priority for handling the request, such that requests with higher values are assigned higher priorities; placing each request in one of multiple queues according to its priority value; and dropping the requests with the lowest priority when the plurality of requested are received at a rate that exceeds the maximum capacity.
Patent

Method and apparatus for data redundancy elimination at the block level

TL;DR: In this article, a redundancy elimination mechanism is proposed, which applies aspects of duplicate block elimination and delta encoding at the block level, which divides file objects into content-defined blocks or chunks.