{"updated":"2025-01-19T10:47:06.302856+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00231382","sets":["6164:6165:6617:11434"]},"path":["11434"],"owner":"44499","recid":"231382","title":["分散ファイルシステムにおける重複排除後のデータ参照性能改善"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-11-30"},"_buckets":{"deposit":"2622de4d-a7ff-4d4d-ae4e-5269b9d62e45"},"_deposit":{"id":"231382","pid":{"type":"depid","value":"231382","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"分散ファイルシステムにおける重複排除後のデータ参照性能改善","author_link":["624533","624534"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"分散ファイルシステムにおける重複排除後のデータ参照性能改善"}]},"item_type_id":"18","publish_date":"2023-11-30","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_18_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"(株)日立製作所研究開発グループデジタルサービスプラットフォームイノベーションセンタ"},{"subitem_text_value":"(株)日立製作所研究開発グループデジタルサービスプラットフォームイノベーションセンタ"}]},"item_18_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Hitachi Ltd., Research & Development Group, Center for Digital Technology Innovation","subitem_text_language":"en"},{"subitem_text_value":"Hitachi Ltd., Research & Development Group, Center for Digital Technology Innovation","subitem_text_language":"en"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/231382/files/IPSJ-ComSys2023002.pdf","label":"IPSJ-ComSys2023002.pdf"},"date":[{"dateType":"Available","dateValue":"2025-11-30"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ComSys2023002.pdf","filesize":[{"value":"3.3 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"11"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"13396962-f0a3-4aa0-9f5b-4d01a67318da","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2023 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鴨生, 悠冬"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"早坂, 光雄"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_5794","resourcetype":"conference paper"}]},"item_18_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"分散FSの重複排除方式として，ノード内重複排除とノード間重複排除がある．ノード間重複排除は，複数ノードのデータを重複排除できるため，単一ノードのデータのみを重複排除するノード内重複排除に比べ，容量削減効果が高い．しかし，ノード間重複排除は重複データをファイルデータと異なるノードに格納する場合があり，ノード間通信回数が増加しデータ参照性能が低下する．そこで，本研究では，重複データを容量が逼迫するまでキャッシュし続けてノード間通信回数を削減する方式を提案する．評価の結果，重複率50%のデータにて，提案方式は従来に比べてランダムリード性能を約1.6倍，シーケンシャルリード性能を約2.3倍に向上できることを確認した．また，重複チャンク単位でキャッシュ解放すると，従来方式より性能低下する場合があり，ファイル単位でキャッシュ解放することで解決できると示した．","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"13","bibliographic_titles":[{"bibliographic_title":"コンピュータシステム・シンポジウム論文集"}],"bibliographicPageStart":"7","bibliographicIssueDates":{"bibliographicIssueDate":"2023-11-30","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"2023"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:31:39.190852+00:00","id":231382,"links":{}}