SCHEDULE: NOV 10-16, 2012
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Distributed Metadata Management for Exascale Parallel File System
SESSION: Research Poster Reception
EVENT TYPE: Posters and Electronic Posters
TIME: 5:15PM - 7:00PM
SESSION CHAIR: Torsten Hoefler
AUTHOR(S):Keiji Yamamoto, Atsushi Hori, Yutaka Ishikawa
ROOM:East Entrance
ABSTRACT:
In today's supercomputer, most file systems provide scalable I/O bandwidth. But these systems cannot concurrent creation of millions to billions of files in a single directory. Toward exascale-era, we propose scalable metadata management method by using many metadata servers. Directory entry and inode are distributed by using consistent hashing. Directory entry and inode are stored as same MDS as possible. In many case, two request of lookup dentry and inode are merged into one request. In evaluation, our file system throughput is more than 490,000 file creates per second on 64 metadata servers and 2048 clients. Concurrent file creation time of 40 million is 42 second in a single directory.
Chair/Author Details:
Torsten Hoefler (Chair) - ETH Zurich
Keiji Yamamoto - RIKEN
Atsushi Hori - RIKEN
Yutaka Ishikawa - University of Tokyo
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Distributed Metadata Management for Exascale Parallel File System
SESSION: Research Poster Reception
EVENT TYPE:
TIME: 5:15PM - 7:00PM
SESSION CHAIR: Torsten Hoefler
AUTHOR(S):Keiji Yamamoto, Atsushi Hori, Yutaka Ishikawa
ROOM:East Entrance
ABSTRACT:
In today's supercomputer, most file systems provide scalable I/O bandwidth. But these systems cannot concurrent creation of millions to billions of files in a single directory. Toward exascale-era, we propose scalable metadata management method by using many metadata servers. Directory entry and inode are distributed by using consistent hashing. Directory entry and inode are stored as same MDS as possible. In many case, two request of lookup dentry and inode are merged into one request. In evaluation, our file system throughput is more than 490,000 file creates per second on 64 metadata servers and 2048 clients. Concurrent file creation time of 40 million is 42 second in a single directory.
Chair/Author Details:
Torsten Hoefler (Chair) - ETH Zurich
Keiji Yamamoto - RIKEN
Atsushi Hori - RIKEN
Yutaka Ishikawa - University of Tokyo
Click here to download .ics calendar file