Adaptive fault tolerance mechanisms for opportunistic environments: a mobile agent approach

Multicore hardware platforms are being incorporated into spacecraft on-board systems to achieve faster and more efficient data processing. However, such systems lead to increased complexity in software development and represent a considerable challenge, especially concerning the runtime verification of fault-tolerance requirements. To address the ever-challenging verification of this kind of requirement, we introduce a LEON4 multicore virtual platform called LeonViP-MC. LeonViP-MC is an evolution of a previous development called Leon2ViP, carried out by the Space Research Group of the University of Alcalá (SRG-UAH), which has been successfully used in the development and testing of the flight software of the instrument control unit (ICU) of the energetic particle detector (EPD) on board the Solar Orbiter. This paper describes the LeonViP-MC architectural design decisions oriented towards fault-injection campaigns to verify software fault-tolerance mechanisms. To validate the simulator, we developed an ARINC653 communications channel that incorporates fault-tolerance mechanisms and is currently being used to develop a hypervisor level for the GR740 platform.

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Configurable mobile agent and its fault-tolerance mechanism

Proceedings 2001 International Conference on Computer Networks and Mobile Computing ◽

10.1109/iccnmc.2001.962622 ◽

2002 ◽

Author(s):

Chenggang Wu ◽

Shaohui Liu ◽

Bo Wang ◽

Zhongzhi Shi ◽

Hua Gu

Keyword(s):

Fault Tolerance ◽

Mobile Agent ◽

Tolerance Mechanism

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Towards On-line Adaptation of Fault Tolerance Mechanisms

2010 European Dependable Computing Conference ◽

10.1109/edcc.2010.15 ◽

2010 ◽

Cited By ~ 4

Author(s):

Jean-Charles Fabre ◽

Marc-Olivier Killijian ◽

Thomas Pareaud

Keyword(s):

Fault Tolerance ◽

Tolerance Mechanisms ◽

On Line

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A Design for Fault-Tolerant Communication Middleware Based on Time-Triggered

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.548-549.1326 ◽

2014 ◽

Vol 548-549 ◽

pp. 1326-1329

Author(s):

Juan Jin ◽

Qing Fan Gu

Keyword(s):

Fault Tolerance ◽

Real Time ◽

Fault Location ◽

Fault Tolerant ◽

Application Software ◽

Tolerance Mechanisms ◽

The Real ◽

Communication Middleware ◽

Fault Mechanism ◽

Health Diagnosis

Against to the unsustainable problems of health diagnosis, fault location and fault tolerance mechanisms that existing in the current avionics applications, we proposed a fault-tolerant communication middleware which is based on time-triggered in this paper. This middleware is designed to provide a support platform for applications of the real-time based on communication middleware. From the communication middleware level and also combined with time-triggered mechanism and fault-tolerant strategy, it diagnoses the general faults first, and then routes them to the appropriate fault mechanism to process it. So the middleware completely separates fault-tolerant process from the application software functions.

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Remote Method Invocation and Mobile Agent: A Comparative Analysis

10.28945/3033 ◽

2006 ◽

Author(s):

G. Adesola Aderounmu ◽

Bosede Oyatokun ◽

Matthew Adigun

Keyword(s):

Comparative Analysis ◽

Fault Tolerance ◽

Mobile Agent ◽

Research Work ◽

Search Time ◽

Object Oriented Programming ◽

Information Storage ◽

Superior Performance ◽

Remote Method Invocation ◽

Network Bandwidth

This paper presents a comparative analysis of Remote Method Invocation (RMI) and Mobile Agent (MA) paradigm used to implement the information storage and retrieval system in a distributed computing environment. Simulation program was developed to measure the performance of MA and RMI using object oriented programming language (the following parameters: search time, fault tolerance and invocation cost. We used search time, fault tolerance and invocation cost as performance parameters in this research work. Experimental results showed that Mobile Agent paradigm offers a superior performance compared to RMI paradigm, offers fast computational speed; procure lower invocation cost by making local invocations instead of remote invocations over the network, thereby reducing network bandwidth. Finally MA has a better fault tolerance than the RMI. With a probability of failure pr = 0.1, mobile agent degrades gracefully.

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