NDLI: On-the-Fly Recovery of Job Input Data in Supercomputers

Content Provider	IEEE Xplore Digital Library
Author	Chao Wang Zhe Zhang Vazhkudai, S.S. Xiaosong Ma Mueller, F.
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci., North Carolina State Univ., Raleigh, NC (Chao Wang; Zhe Zhang; Xiaosong Ma; Mueller, F.)
Abstract	Storage system failure is a serious concern as we approach Petascale computing. Even at today's sub-Petascale levels, I/O failure is the leading cause of downtimes and job failures. We contribute a novel, on-the-fly recovery framework for job input data into supercomputer parallel file systems. The framework exploits key traits of the HPC I/O workload to reconstruct lost input data during job execution from remote, immutable copies. Each reconstructed data stripe is made immediately accessible in the client request order due to the delayed metadata update and fine-granular locking while unrelated access to the same file remains unaffected. We have implemented the recovery component within the Lustre parallel file system, thus building a novel application-transparent online recovery solution. Our solution is integrated into Lustre's two-level locking scheme using a two-phase blocking protocol. Combining parametric and simulation studies, our experiments demonstrate a significant improvement in HPC center service ability and user job turnaround time.
Starting Page	620
Ending Page	627
File Size	308380
Page Count	8
File Format	PDF
ISBN	9780769533742
ISSN	01903918
DOI	10.1109/ICPP.2008.28
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	File systems Supercomputers Servers Protocols Availability Fault tolerance Fault tolerant systems
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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