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The Rio File Cache: Surviving Operating System Crashes

by Peter M. Chen, Wee Teck Ng, Gurushankar Rajamani, Christopher M. Aycock - In Proc. 7th Intl. Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS , 1996
"... Abstract: One of the fundamental limits to high-performance, high-reliability file systems is memory’s vulnerability to system crashes. Because memory is viewed as unsafe, systems periodically write data back to disk. The extra disk traffic lowers performance, and the delay period before data is saf ..."
Abstract - Cited by 132 (13 self) - Add to MetaCart
Abstract: One of the fundamental limits to high-performance, high-reliability file systems is memory’s vulnerability to system crashes. Because memory is viewed as unsafe, systems periodically write data back to disk. The extra disk traffic lowers performance, and the delay period before data

End-To-End Arguments In System Design

by Jerome H. Saltzer, David P. Reed, David D. Clark , 1984
"... This paper presents a design principle that helps guide placement of functions among the modules of a distributed computer system. The principle, called the end-to-end argument, suggests that functions placed at low levels of a system may be redundant or of little value when compared with the cost o ..."
Abstract - Cited by 1037 (10 self) - Add to MetaCart
of providing them at that low level. Examples discussed in the paper include bit error recovery, security using encryption, duplicate message suppression, recovery from system crashes, and delivery acknowledgement. Low level mechanisms to support these functions are justified only as performance enhancements

Recovering from Operating System Crashes

by Francis David
"... Abstract — When an operating system crashes and hangs, it leaves the machine in an unusable state. All currently running program state and data is lost. The usual solution is to reboot the machine and restart user programs. However, it is possible that after a crash, user program state and most oper ..."
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Abstract — When an operating system crashes and hangs, it leaves the machine in an unusable state. All currently running program state and data is lost. The usual solution is to reboot the machine and restart user programs. However, it is possible that after a crash, user program state and most

Redo Recovery after System Crashes

by David Lomet, Mark Tuttle - In International Conference on Very Large Data Bases , 1995
"... : This paper defines a framework for explaining redo recovery after a system crash. In this framework, an installation graph explains the order in which operations must be installed into the stable database if it is to remain recoverable. This installation graph is a significantly weaker ordering on ..."
Abstract - Cited by 22 (5 self) - Add to MetaCart
: This paper defines a framework for explaining redo recovery after a system crash. In this framework, an installation graph explains the order in which operations must be installed into the stable database if it is to remain recoverable. This installation graph is a significantly weaker ordering

Unreliable Failure Detectors for Reliable Distributed Systems

by Tushar Deepak Chandra, Sam Toueg - Journal of the ACM , 1996
"... We introduce the concept of unreliable failure detectors and study how they can be used to solve Consensus in asynchronous systems with crash failures. We characterise unreliable failure detectors in terms of two properties — completeness and accuracy. We show that Consensus can be solved even with ..."
Abstract - Cited by 1094 (19 self) - Add to MetaCart
We introduce the concept of unreliable failure detectors and study how they can be used to solve Consensus in asynchronous systems with crash failures. We characterise unreliable failure detectors in terms of two properties — completeness and accuracy. We show that Consensus can be solved even

The Design and Implementation of a Log-Structured File System

by Mendel Rosenblum, John K. Ousterhout - ACM Transactions on Computer Systems , 1992
"... This paper presents a new technique for disk storage management called a log-structured file system. A logstructured file system writes all modifications to disk sequentially in a log-like structure, thereby speeding up both file writing and crash recovery. The log is the only structure on disk; it ..."
Abstract - Cited by 1092 (8 self) - Add to MetaCart
This paper presents a new technique for disk storage management called a log-structured file system. A logstructured file system writes all modifications to disk sequentially in a log-like structure, thereby speeding up both file writing and crash recovery. The log is the only structure on disk

Masking System Crashes in Database Application Programs

by Johann Christoph Freytag, Flaviu Cristian, Bo Kaehlerl - In Proc. of 13th Int'l. Conf. on Very Large Data Bases , 1987
"... Over the last decade many techniques for recovering a consistent state for a database management system after a system crash have been proposed. However, the problem of handling system crashes in database application programs, and of masking these crashes to users of those programs, has received lit ..."
Abstract - Cited by 7 (0 self) - Add to MetaCart
Over the last decade many techniques for recovering a consistent state for a database management system after a system crash have been proposed. However, the problem of handling system crashes in database application programs, and of masking these crashes to users of those programs, has received

The Weakest Failure Detector for Solving Consensus

by Tushar Deepak Chandra, Vassos Hadzilacos, Sam Toueg , 1996
"... We determine what information about failures is necessary and sufficient to solve Consensus in asynchronous distributed systems subject to crash failures. In [CT91], it is shown that 3W, a failure detector that provides surprisingly little information about which processes have crashed, is sufficien ..."
Abstract - Cited by 484 (21 self) - Add to MetaCart
We determine what information about failures is necessary and sufficient to solve Consensus in asynchronous distributed systems subject to crash failures. In [CT91], it is shown that 3W, a failure detector that provides surprisingly little information about which processes have crashed

Computer Vision

by Kusuma Kumari B. M , 1982
"... Driver inattention is one of the main causes of traffic accidents. Monitoring a driver to detect inattention is a complex problem that involves physiological and behavioral elements. Different approaches have been made, and among them Computer Vision has the potential of monitoring the person behind ..."
Abstract - Cited by 1041 (11 self) - Add to MetaCart
the use of infrared light which is harmful for the human eye. Motor vehicle accidents cause injury and death, and this system will help to decrease the amount of crashes due to fatigued drivers. The proposed algorithm will work in three main stages. In first stage the face of the driver is detected

Secure routing for structured peer-to-peer overlay networks

by Miguel Castro, Peter Druschel, Ayalvadi Ganesh, Antony Rowstron, Dan S. Wallach , 2002
"... Structured peer-to-peer overlay networks provide a sub-strate for the construction of large-scale, decentralized applications, including distributed storage, group com-munication, and content distribution. These overlays are highly resilient; they can route messages correctly even when a large fract ..."
Abstract - Cited by 473 (12 self) - Add to MetaCart
fraction of the nodes crash or the network partitions. But current overlays are not secure; even a small fraction of malicious nodes can prevent correct message delivery throughout the overlay. This prob-lem is particularly serious in open peer-to-peer systems, where many diverse, autonomous parties
Results 1 - 10 of 3,078