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Open AccessArticle

High-Availability Computing Platform with Sensor Fault Resilience

1
Department of Computer Science and Information Engineering, National Central University, Taoyuan 320, Taiwan
2
Institute for Information Industry, Taipei 106, Taiwan
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(2), 542; https://doi.org/10.3390/s21020542
Received: 21 December 2020 / Revised: 5 January 2021 / Accepted: 11 January 2021 / Published: 13 January 2021
(This article belongs to the Special Issue Selected Papers from TIKI IEEE ICICE 2019& ICASI 2020)
Modern computing platforms usually use multiple sensors to report system information. In order to achieve high availability (HA) for the platform, the sensors can be used to efficiently detect system faults that make a cloud service not live. However, a sensor may fail and disable HA protection. In this case, human intervention is needed, either to change the original fault model or to fix the sensor fault. Therefore, this study proposes an HA mechanism that can continuously provide HA to a cloud system based on dynamic fault model reconstruction. We have implemented the proposed HA mechanism on a four-layer OpenStack cloud system and tested the performance of the proposed mechanism for all possible sets of sensor faults. For each fault model, we inject possible system faults and measure the average fault detection time. The experimental result shows that the proposed mechanism can accurately detect and recover an injected system fault with disabled sensors. In addition, the system fault detection time increases as the number of sensor faults increases, until the HA mechanism is degraded to a one-system-fault model, which is the worst case as the system layer heartbeating. View Full-Text
Keywords: failover; high availability; sensor fault; fault detection and recovery; liveness detection failover; high availability; sensor fault; fault detection and recovery; liveness detection
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MDPI and ACS Style

Lee, Y.-L.; Arizky, S.N.; Chen, Y.-R.; Liang, D.; Wang, W.-J. High-Availability Computing Platform with Sensor Fault Resilience. Sensors 2021, 21, 542. https://doi.org/10.3390/s21020542

AMA Style

Lee Y-L, Arizky SN, Chen Y-R, Liang D, Wang W-J. High-Availability Computing Platform with Sensor Fault Resilience. Sensors. 2021; 21(2):542. https://doi.org/10.3390/s21020542

Chicago/Turabian Style

Lee, Yen-Lin; Arizky, Shinta N.; Chen, Yu-Ren; Liang, Deron; Wang, Wei-Jen. 2021. "High-Availability Computing Platform with Sensor Fault Resilience" Sensors 21, no. 2: 542. https://doi.org/10.3390/s21020542

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