{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00234357","sets":["1164:1867:11465:11615"]},"path":["11615"],"owner":"44499","recid":"234357","title":["ECC-uncorrectableメモリエラーに耐性を有するJavaアプリケーション"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-05-23"},"_buckets":{"deposit":"3ce1d1aa-19bd-42b8-aed1-5a4ebca1d0bc"},"_deposit":{"id":"234357","pid":{"type":"depid","value":"234357","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"ECC-uncorrectableメモリエラーに耐性を有するJavaアプリケーション","author_link":["638420","638419"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ECC-uncorrectableメモリエラーに耐性を有するJavaアプリケーション"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"耐故障性","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2024-05-23","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京農工大学"},{"subitem_text_value":"東京農工大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Tokyo University of Agriculture and Technology","subitem_text_language":"en"},{"subitem_text_value":"Tokyo University of Agriculture and Technology","subitem_text_language":"en"}]},"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/234357/files/IPSJ-OS24163002.pdf","label":"IPSJ-OS24163002.pdf"},"date":[{"dateType":"Available","dateValue":"2026-05-23"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-OS24163002.pdf","filesize":[{"value":"1.4 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":"d937d179-ce9c-4045-b6e5-f7a44af77e24","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岡崎, 孝祐"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山田, 浩史"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10444176","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":"2188-8795","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"アプリケーションの信頼性に大きな影響を及ぼすメモリエラーの中でも，特に ECC-uncorrectable メモリエラー（EMEs）はアプリケーションに甚大な被害を及ぼす．EMEs が発生したメモリにプロセスがアクセスを試みると，アプリケーションはオペレーティングシステム（OS）により即座に終了される．Java 等のマネージド言語で開発されることが多いインメモリ処理フレームワークでは，EMEs に遭遇した際のダウンタイムが長いという問題がある．インメモリ処理フレームワークはメモリを大量に用いて処理を行うため EMEs に遭遇すると大量のデータが失われ，データの復元に長い時間がかかり，ダウンタイムが長くなる．本研究では，Java アプリケーションが EMEs に遭遇しても，継続実行できる手法を提案する．アプリケーションの継続実行を可能にすることで，長いダウンタイムを回避しアプリケーションの信頼性を向上させる．提案手法では，EMEs が発生した異常なメモリオブジェクトを破棄し，残した正常なオブジェクトを用いてメモリ上データ構造の再構成を行う．本研究では，提案手法を OpenJDK 21，Linux 6.2.1 上に実装し，ケーススタディとして Linked List，Chain Hash，B+-tree のリカバリハンドラを実装，データ構造の修復を評価した．結果として，すべてのケーススタディにおいて使用するメモリ量はデフォルトと比較して 2 倍以下におさまり，継続実行が可能であった．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"13","bibliographic_titles":[{"bibliographic_title":"研究報告システムソフトウェアとオペレーティング・システム（OS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2024-05-23","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"2024-OS-163"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"updated":"2025-01-19T09:49:03.910346+00:00","created":"2025-01-19T01:36:08.219684+00:00","links":{},"id":234357}