{"updated":"2025-01-19T12:06:19.964677+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00227667","sets":["1164:4088:11174:11335"]},"path":["11335"],"owner":"44499","recid":"227667","title":["SSNにおけるSafe Retry特性の頑健化"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-09-12"},"_buckets":{"deposit":"7626ddf4-ac97-41f2-bcbb-d6e8089e649c"},"_deposit":{"id":"227667","pid":{"type":"depid","value":"227667","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"SSNにおけるSafe Retry特性の頑健化","author_link":["606716","606715"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"SSNにおけるSafe Retry特性の頑健化"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"システム・性能評価","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2023-09-12","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"慶應義塾大学環境情報学部"},{"subitem_text_value":"慶應義塾大学環境情報学部"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/227667/files/IPSJ-IOT23063007.pdf","label":"IPSJ-IOT23063007.pdf"},"date":[{"dateType":"Available","dateValue":"2025-09-12"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IOT23063007.pdf","filesize":[{"value":"455.3 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"e1956c35-ed2b-4406-8358-af726f3bf6f4","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2023 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"髙田, 陽一郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"川島, 英之"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12326962","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8787","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"Amazon Redshift のデータベースにも活用される serial safety net(SSN) は，スキャンといった大量の読み込み操作を多く含む一般的ではないワークロードで高性能を出すことが期待されている．しかしこのようなトランザクションは並列性が上がるほど中断しやすくなり，再実行に大きなコストがかかる．SSN は safe retry 特性と呼ばれる，トランザクションが中断した際にその原因が解消され，同じ原因によって再び中断することがないという特性を保有する．本研究ではこの特性を応用し，ロック機構を用いて対象となるトランザクションの中断回数を高々 1 回に抑える手法を提案する．Snapshot isolation と SSN を実装し，read only トランザクションの挙動を分析した．その結果，コミットまでに最大 29 回リトライするトランザクションが発生し，提案手法が原理的に有効であることが示された．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告インターネットと運用技術（IOT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2023-09-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"7","bibliographicVolumeNumber":"2023-IOT-63"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:26:55.362274+00:00","id":227667,"links":{}}