| Presentation | 2004-10-18 Access-Forwarding Control for Keeping the System-Service Quality During Data Migration Dai KOBAYASHI, Akitsugu WATANABE, Ryo TAGUCHI, Toshihiro UEHARA, Haruo YOKOTA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Data migration is an efficient method to handle skew of access-request distribution in parallel databases and distributed storage systems. However, it also causes performance degradation during the migration process temporally because it uses system resources such as local I/O or networks. To solve this kind of problems, we have proposed a method replica-assisted migration that use temporally replica data in other storage nodes during executing data migration. In this paper, we propose an efficient method to calculate access forwarding ratio for replica-assisted migration. It obtains the ratio with load estimation values and system-required quality. We also examine a granularity of access-forwarding, to take acount of disk cache effects. In addition, we show an efficiency of our method by the results of experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | distributed storage / skew handling / data migration / replication / QoS |
| Paper # | DE2004-112,DC2004-27 |
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| Conference Information | |
| Committee | DE |
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| Conference Date | 2004/10/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Data Engineering (DE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Access-Forwarding Control for Keeping the System-Service Quality During Data Migration |
| Sub Title (in English) | |
| Keyword(1) | distributed storage |
| Keyword(2) | skew handling |
| Keyword(3) | data migration |
| Keyword(4) | replication |
| Keyword(5) | QoS |
| 1st Author's Name | Dai KOBAYASHI |
| 1st Author's Affiliation | Department of Computer Science, Graduate School of Information Science and Engineering, Tokyo() |
| 2nd Author's Name | Akitsugu WATANABE |
| 2nd Author's Affiliation | Department of Computer Science, Graduate School of Information Science and Engineering, Tokyo |
| 3rd Author's Name | Ryo TAGUCHI |
| 3rd Author's Affiliation | NHK Science & Technical Research Laboratories |
| 4th Author's Name | Toshihiro UEHARA |
| 4th Author's Affiliation | NHK Science & Technical Research Laboratories |
| 5th Author's Name | Haruo YOKOTA |
| 5th Author's Affiliation | Department of Computer Science, Graduate School of Information Science and Engineering, Tokyo:Global Scientific Information & Computing Center, Tokyo Institute of Technolo |
| Date | 2004-10-18 |
| Paper # | DE2004-112,DC2004-27 |
| Volume (vol) | vol.104 |
| Number (no) | 344 |
| Page | pp.pp.- |
| #Pages | 6 |
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