Active/active replication for highly available HPC system services (2006)
| Venue: | In Proceedings of International Symposium on Frontiers in Availability, Reliability and Security (FARES) 2006, in conjunction with 1 st International Conference on Availability, Reliability and Security (ARES) 2006 |
| Citations: | 7 - 7 self |
BibTeX
@INPROCEEDINGS{Engelmann06active/activereplication,
author = {C. Engelmann and S. L. Scott and C. Leangsuksun and X. He},
title = {Active/active replication for highly available HPC system services},
booktitle = {In Proceedings of International Symposium on Frontiers in Availability, Reliability and Security (FARES) 2006, in conjunction with 1 st International Conference on Availability, Reliability and Security (ARES) 2006},
year = {2006},
pages = {639--645},
publisher = {IEEE Computer Society}
}
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Abstract
Today‘s high performance computing systems have several reliability deficiencies resulting in availability and serviceability issues. Head and service nodes represent a single point of failure and control for an entire system as they render it inaccessible and unmanageable in case of a failure until repair, causing a significant downtime. This paper introduces two distinct replication methods (internal and external) for providing symmetric active/active high availability for multiple head and service nodes running in virtual synchrony. It presents a comparison of both methods in terms of expected correctness, ease-of-use and performance based on early results from ongoing work in providing symmetric active/active high availability for two HPC system services (TORQUE and PVFS metadata server). It continues with a short description of a distributed mutual exclusion algorithm and a brief statement regarding the handling of Byzantine failures. This paper concludes with an overview of past and ongoing work, and a short summary of the presented research.
