NDLI: Co-Locating Virtual Machine Logging and Replay for Recording System Failures

Content Provider	IEEE Xplore Digital Library
Author	Kawasaki, J. Oikawa, S.
Copyright Year	2010
Abstract	There can be more system failures in the near future because of the combination of increased software com- plexity and a wide variety of usage patters. It is, however, difficult or sometimes almost impossible to find the root causes of the failures only from the limited and unreliable information provided by customers. Therefore, it is important to equip a feature that enables the complete tracing of system failures. We propose a system that employs two virtual machines, one for the primary execution and the other for the backup execution. The backup virtual machine maintains the past state of the primary virtual machine along with the log to make the backup the same state as the primary. When a system failure occurs on the primary virtual machine, the VMM saves the backup state and the log. By replaying the backup virtual machine from the saved state following the saved log, the execution path to the failure can be completely traced. We developed such a logging and replaying feature in a VMM. It can log and replay the execution of the Linux operating system. The experiments show that the overhead of the primary execution is only fractional, and the overhead of the replaying execution on the backup is less than 2 %.
Starting Page	1352
Ending Page	1357
File Size	384900
Page Count	6
File Format	PDF
ISBN	9781424475476
e-ISBN	9781424475483
DOI	10.1109/CIT.2010.242
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-29
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electric breakdown Linux Operating systems Radiation detectors operating system dependability Virtual machining Timing virtual machine monitor
Content Type	Text
Resource Type	Article

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