IEICE TRANSACTIONS on Information
Shortening Downtime of Reboot-Based Kernel Updates Using Dwarf
Summary :
Kernel updates are a part of daily life in contemporary computer systems. They usually require an OS reboot that involves restarting not only the kernel but also all of the running applications, causing downtime that can disrupt software services. This downtime issue has been tackled by numerous approaches. Although dynamic translation of the running kernel image, which is a representative approach, can conduct kernel updates at runtime, its applicability is inherently limited. This paper describes Dwarf, which shortens downtime during kernel updates and covers more types of updates. Dwarf launches the newer kernel in the background on the same physical machine and forces the kernel to inherit the running states of the older kernel. We implemented a prototype of Dwarf on Xen 4.5.2, Linux 2.6.39, Linux 3.18.35, and Linux 4.1.6. Also, we conducted experiments using six applications, such as Apache, MySQL, and memcached, and the results demonstrate that Dwarf's downtime is 1.8 seconds in the shortest case and up to 10× shorter than that of the normal OS reboot.
- Publication
- IEICE TRANSACTIONS on Information Vol.E101-D No.12 pp.2991-3004
- Publication Date
- 2018/12/01
- Publicized
- 2018/09/07
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.2017EDP7397
- Type of Manuscript
- PAPER
- Category
- Software System
Authors
Ken TERADA
Tokyo University of Agriculture and Technology
Hiroshi YAMADA
Tokyo University of Agriculture and Technology
Keyword
Latest Issue
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Ken TERADA, Hiroshi YAMADA, "Shortening Downtime of Reboot-Based Kernel Updates Using Dwarf" in IEICE TRANSACTIONS on Information,
vol. E101-D, no. 12, pp. 2991-3004, December 2018, doi: 10.1587/transinf.2017EDP7397.
Abstract: Kernel updates are a part of daily life in contemporary computer systems. They usually require an OS reboot that involves restarting not only the kernel but also all of the running applications, causing downtime that can disrupt software services. This downtime issue has been tackled by numerous approaches. Although dynamic translation of the running kernel image, which is a representative approach, can conduct kernel updates at runtime, its applicability is inherently limited. This paper describes Dwarf, which shortens downtime during kernel updates and covers more types of updates. Dwarf launches the newer kernel in the background on the same physical machine and forces the kernel to inherit the running states of the older kernel. We implemented a prototype of Dwarf on Xen 4.5.2, Linux 2.6.39, Linux 3.18.35, and Linux 4.1.6. Also, we conducted experiments using six applications, such as Apache, MySQL, and memcached, and the results demonstrate that Dwarf's downtime is 1.8 seconds in the shortest case and up to 10× shorter than that of the normal OS reboot.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2017EDP7397/_p
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@ARTICLE{e101-d_12_2991,
author={Ken TERADA, Hiroshi YAMADA, },
journal={IEICE TRANSACTIONS on Information},
title={Shortening Downtime of Reboot-Based Kernel Updates Using Dwarf},
year={2018},
volume={E101-D},
number={12},
pages={2991-3004},
abstract={Kernel updates are a part of daily life in contemporary computer systems. They usually require an OS reboot that involves restarting not only the kernel but also all of the running applications, causing downtime that can disrupt software services. This downtime issue has been tackled by numerous approaches. Although dynamic translation of the running kernel image, which is a representative approach, can conduct kernel updates at runtime, its applicability is inherently limited. This paper describes Dwarf, which shortens downtime during kernel updates and covers more types of updates. Dwarf launches the newer kernel in the background on the same physical machine and forces the kernel to inherit the running states of the older kernel. We implemented a prototype of Dwarf on Xen 4.5.2, Linux 2.6.39, Linux 3.18.35, and Linux 4.1.6. Also, we conducted experiments using six applications, such as Apache, MySQL, and memcached, and the results demonstrate that Dwarf's downtime is 1.8 seconds in the shortest case and up to 10× shorter than that of the normal OS reboot.},
keywords={},
doi={10.1587/transinf.2017EDP7397},
ISSN={1745-1361},
month={December},}
Copy
TY - JOUR
TI - Shortening Downtime of Reboot-Based Kernel Updates Using Dwarf
T2 - IEICE TRANSACTIONS on Information
SP - 2991
EP - 3004
AU - Ken TERADA
AU - Hiroshi YAMADA
PY - 2018
DO - 10.1587/transinf.2017EDP7397
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E101-D
IS - 12
JA - IEICE TRANSACTIONS on Information
Y1 - December 2018
AB - Kernel updates are a part of daily life in contemporary computer systems. They usually require an OS reboot that involves restarting not only the kernel but also all of the running applications, causing downtime that can disrupt software services. This downtime issue has been tackled by numerous approaches. Although dynamic translation of the running kernel image, which is a representative approach, can conduct kernel updates at runtime, its applicability is inherently limited. This paper describes Dwarf, which shortens downtime during kernel updates and covers more types of updates. Dwarf launches the newer kernel in the background on the same physical machine and forces the kernel to inherit the running states of the older kernel. We implemented a prototype of Dwarf on Xen 4.5.2, Linux 2.6.39, Linux 3.18.35, and Linux 4.1.6. Also, we conducted experiments using six applications, such as Apache, MySQL, and memcached, and the results demonstrate that Dwarf's downtime is 1.8 seconds in the shortest case and up to 10× shorter than that of the normal OS reboot.
ER -
English
