Log-Less Metadata Management on Metadata Server for Parallel File Systems
Joint Authors
Liao, Jianwei
Xiao, Guoqiang
Peng, Xiaoning
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-27
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
This paper presents a novel metadata management mechanism on the metadata server (MDS) for parallel and distributed file systems.
In this technique, the client file system backs up the sent metadata requests, which have been handled by the metadata server, so that the MDS does not need to log metadata changes to nonvolatile storage for achieving highly available metadata service, as well as better performance improvement in metadata processing.
As the client file system backs up certain sent metadata requests in its memory, the overhead for handling these backup requests is much smaller than that brought by the metadata server, while it adopts logging or journaling to yield highly available metadata service.
The experimental results show that this newly proposed mechanism can significantly improve the speed of metadata processing and render a better I/O data throughput, in contrast to conventional metadata management schemes, that is, logging or journaling on MDS.
Besides, a complete metadata recovery can be achieved by replaying the backup logs cached by all involved clients, when the metadata server has crashed or gone into nonoperational state exceptionally.
American Psychological Association (APA)
Liao, Jianwei& Xiao, Guoqiang& Peng, Xiaoning. 2014. Log-Less Metadata Management on Metadata Server for Parallel File Systems. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1051156
Modern Language Association (MLA)
Liao, Jianwei…[et al.]. Log-Less Metadata Management on Metadata Server for Parallel File Systems. The Scientific World Journal No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1051156
American Medical Association (AMA)
Liao, Jianwei& Xiao, Guoqiang& Peng, Xiaoning. Log-Less Metadata Management on Metadata Server for Parallel File Systems. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1051156
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051156