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Amazon Aurora 移行大全 #1 - Retty Tech Blog
今年もã¯ã˜ã¾ã‚Šã¾ã—㟠Retty Advent Calendar 2019 ! åˆæ—¥ã‚’担当ã„ãŸã—ã¾ã™æŠ€è¡“部ã®è¥¿æ‘ã§ã™ã€‚ ã•ã¦ç§ã¯ 2 回ã«åˆ†ã‘㦠『Amazon Aurora 移行大全〠ã¨ã„ã†å†…容ã§æ›¸ã„ã¦ã„ãã¾ã™ã€‚ ※ Amazon Aurora ã«ã¤ã„ã¦ã¯ Amazon Aurora ã‚’ã”å‚ç…§ãã ã•ã„。 ※ ä»¥é™ Aurora ã¨è¨˜è¼‰ 移行対象環境ã®èª¬æ˜Ž 移行ã®çµŒç·¯ 事å‰èª¿æŸ»/検証 コスト調査 テーブルスã‚ーマ変更調査 MyISAM ã‹ã‚‰ InnoDB ã¸ã®å¤‰æ› COMPRESSED ã‹ã‚‰ DYNAMIC ã¸ã®å¤‰æ› カスタムエンドãƒã‚¤ãƒ³ãƒˆèª¿æŸ» 性能検証 移行準備 å‚考資料 2 回ã«ã‚ãŸã‚‹å†…容ã¯ä¸‹è¨˜ã‚’予定ã—ã¦ã¾ã™ã€‚ 移行対象環境ã®èª¬æ˜Ž 移行ã®çµŒç·¯ 事å‰èª¿æŸ»/検証 移行準備 並行é‹ç”¨ ãƒ¡ãƒ³ãƒ†ãƒŠãƒ³ã‚¹ä½œæ¥ ç§»è¡Œã‚’çµ‚ãˆã¦ åˆå›žã¯ 「移行準備〠ã¾ã§è§¦ã‚Œã¦çµ‚ã‚ã‚Šã«ã—ã¾ã™ã€‚ ã¡ãªã¿ã« Aurora
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MTC2018 カンファレンスLPã®è£è©± 〜インフラ編〜 - Mercari Engineering Blog
ã“ã‚“ã«ã¡ã¯ã€ãƒ¡ãƒ«ãƒšã‚¤ã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã® @kazegusuri ã§ã™ã€‚ 2018å¹´10月4æ—¥ã«MTC (Mercari Tech Conf) 2018 ãŒé–‹å‚¬ã•ã‚Œã¾ã—ãŸã€‚ã”æ¥å ´ã•ã‚ŒãŸçš†æ§˜ã€æ¥½ã—ã‚“ã§ã„ãŸã ã‘ãŸã§ã—ょã†ã‹ï¼Ÿ 今回ã¯çš†æ§˜ãŒæœ€åˆã«ç›®ã«ã—ãŸã§ã‚ã‚ã†ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹LPã®è£å´ã«ã¤ã„ã¦ç´¹ä»‹ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ 実ã¯ã“ã®ãƒšãƒ¼ã‚¸ã¯GitHub上ã§Publicãªãƒªãƒã‚¸ãƒˆãƒªã¨ã—ã¦å…¬é–‹ã•ã‚Œã¦ã„ã¾ã™ã€‚ æ°—ã¥ã‹ã‚ŒãŸæ–¹ã‚‚ã„らã£ã—ゃるã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€ã“ã‚Œã¯ã‚¤ãƒ™ãƒ³ãƒˆå¾Œã«å…¬é–‹ã—ãŸã‚ã‘ã§ã¯ãªãã€ãƒªãƒã‚¸ãƒˆãƒªä½œæˆæ™‚ã‹ã‚‰ãšã£ã¨PublicãªçŠ¶æ…‹ã§é–‹ç™ºã‚’続ã‘ã¦ã„ã¾ã—ãŸã€‚ ãƒãƒ¼ãƒ æ§‹æˆ MTC2018ã§ã¯æœ€åˆã‹ã‚‰Webã§ã®å…¬é–‹ã ã‘ã§ã¯ãªãカンファレンスアプリを作ã‚ã†ã¨ã„ã†ã®ã‚’決ã‚ã¦ã„ã¾ã—ãŸã€‚ ãã®ãŸã‚大ãã分ã‘ã¦webãƒãƒ¼ãƒ ã¨appãƒãƒ¼ãƒ ã«åˆ†ã‘ã¦é–‹ç™ºã‚’ã™ã™ã‚ã‚‹ã“ã¨ã«ãªã‚Šã¾ã—ãŸã€‚ web/appãƒãƒ¼ãƒ ã¯ãƒ¡ãƒ«ã‚«ãƒªã‚°ãƒ«ãƒ¼ãƒ—
GitHub - pingcap/tidb: TiDB - the open-source, cloud-native, distributed SQL database designed for modern applications.
Distributed Transactions: TiDB uses a two-phase commit protocol to ensure ACID compliance, providing strong consistency. Transactions span multiple nodes, and TiDB's distributed nature ensures data correctness even in the presence of network partitions or node failures. Horizontal and Vertical Scalability: TiDB can be scaled horizontally by adding more nodes or vertically by increasing resources o
Amazon Aurora under the hood: クオーラムã¨éšœå®³ | Amazon Web Services
クォーラムシステムã¯ã€ã„ãã¤ã‹å„ªã‚ŒãŸç‰¹æ€§ãŒã‚ã‚Šã¾ã™ã€‚(例ãˆã°ã€ãƒªãƒ–ートã®ãŸã‚ã«ç™ºç”Ÿã™ã‚‹ã‚ˆã†ãª)一時的ãªéšœå®³ã‚„クォーラム内ã®1ã¤ã®ãƒŽãƒ¼ãƒ‰ã®é…延ã«å¯¾å‡¦ã™ã‚‹ã®ã¨åŒã˜ãらã„ç°¡å˜ã«ã€ãƒŽãƒ¼ãƒ‰ã®é•·æœŸçš„ãªéšœå®³ã«å¯¾å‡¦ã§ãã¾ã™ã€‚ The Aurora quorum Aurora ã§ã¯ã€3 ã¤ã® AZ ã«ã‚ãŸã£ã¦ã€6 ã¤ã®ãƒ‡ãƒ¼ã‚¿ã‚³ãƒ”ーを利用ã—ã€4 ã¤ã®æ›¸ãè¾¼ã¿ã‚¯ã‚©ãƒ¼ãƒ©ãƒ ã€3 ã¤ã®èªã¿è¾¼ã¿ã‚¯ã‚©ãƒ¼ãƒ©ãƒ ã‚’æŒã£ã¦ã„ã¾ã™ã€‚書ãè¾¼ã¿ã¯ å…¨ 6ã¤ã®ãƒ‡ãƒ¼ã‚¿ã‚³ãƒ”ーã«å¯¾ã—ã¦ç™ºè¡Œã•ã‚Œã€6 ã¤ã®ã‚³ãƒ”ーã®ã†ã¡4ã¤ã‹ã‚‰ ACK ãŒè¿”ã£ã¦ããŸæ™‚点ã§æ›¸ãè¾¼ã¿ã‚’完全ã«èªã‚ã¾ã™ã€‚ã‚‚ã—ã€ãã®ã†ã¡ã®1ã¤ã«é…延ãŒç™ºç”Ÿã—ã¦ã„ãŸã¨ã—ã¦ã‚‚å•é¡Œã‚ã‚Šã¾ã›ã‚“。ãã®ä»–ã®ãƒŽãƒ¼ãƒ‰ãŒç´ æ—©ãè¿”ç”ã—ã€é…ã‚Œã¦ã„るノードã¯ã€å¯èƒ½ãªæ™‚ã«è¿½ã„ã¤ãã¾ã™ã€‚ã‚‚ã—ã€ãƒŽãƒ¼ãƒ‰ã®ã†ã¡ã®1ã¤ãŒå°‘ã—ã®é–“ã€åˆ©ç”¨ä¸èƒ½ã«ãªã£ãŸå ´åˆã§ã‚‚å•é¡Œã‚ã‚Šã¾ã›ã‚“。書ãè¾¼ã¿ã€èªã¿è¾¼ã¿èƒ½åŠ›ãŒå¤±ã‚れるã“ã¨ã¯ãªãã€ãã®ãƒŽãƒ¼ãƒ‰ã‚‚回
SmartHR ãŒå®šæœŸãƒ¡ãƒ³ãƒ†ãƒŠãƒ³ã‚¹ã‚’始ã‚ãŸç†ç”±ã¨ã‚„ã‚ã‚‹ç†ç”± - SmartHR Tech Blog
SmartHR ã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ ã·ã‚Šã‚“ãŸã„ ã§ã™ã€‚SmartHR ã«ã¯2017å¹´2月ã«å…¥ç¤¾ã—ã¾ã—ãŸã€‚ ã“ã®è¨˜äº‹ã¯ SmartHR 長時間ã®ã‚µãƒ¼ãƒ“スåœæ¢ã‚’ä¼´ã†ã‚·ã‚¹ãƒ†ãƒ メンテナンスã®ãŠçŸ¥ã‚‰ã› ã«ã‚ˆã›ã¦æ›¸ã‹ã‚ŒãŸã‚‚ã®ã§ã™ã€‚ ã”挨拶 SmartHR ã§ã¯ã€æ˜¨å¹´ã®6月より週2æ—¥ã¨ã„ã†é »åº¦ã§å¤œé–“ã®ã‚µãƒ¼ãƒ“スåœæ¢ã‚’è¡Œã£ã¦ãã¾ã—ãŸã€‚ã¾ãšã¯ã€ã“ã®é‹ç”¨å½¢æ…‹ã‚’é¸æŠžã—ãŸã“ã¨ã«ã‚ˆã‚Šã”利用ä¸ã®ãŠå®¢æ§˜ã«ã¯ã”ä¸ä¾¿ã‚’ãŠã‹ã‘ã—ãŸã“ã¨ã‚’ãŠè©«ã³ç”³ã—上ã’ã¾ã™ã€‚ 今日ã®ã‚¯ãƒ©ã‚¦ãƒ‰ã‚µãƒ¼ãƒ“スã§ã¯ã€ç„¡åœæ¢é‹ç”¨ãŒå½“ãŸã‚Šå‰ã¨ã„ã£ãŸé¢¨æ½®ã‚‚ã‚ã‚Šã¾ã™ãŒã€ãªãœ SmartHR ãŒåœæ¢ãƒ¡ãƒ³ãƒ†ãƒŠãƒ³ã‚¹é‹ç”¨ã‚’é¸æŠžã—ãŸã®ã‹ã€ä»Šå¾Œã®ã‚µãƒ¼ãƒ“スæä¾›ã«ãŠã„ã¦ã©ã®ã‚ˆã†ãªã“ã¨ã‚’é‡è¦–ã—ã¦ã„ãã®ã‹ã‚’技術者ã¨ã—ã¦ã®ç«‹å ´ã‹ã‚‰ã”説明ã•ã›ã¦é ‚ãã¾ã™ã€‚ SmartHR ã®é–‹ç™ºåˆæœŸã¨ãƒžãƒ«ãƒãƒ†ãƒŠãƒ³ãƒˆå•é¡Œ SmartHR ã¯2015å¹´2月ã«é–‹ç™ºãŒå§‹ã¾ã‚Šã€åŒå¹´11月ã«ã‚µãƒ¼ãƒ“スインã—ã¾ã—ãŸã€‚
Amazon Auroraã®å…ˆé€²æ€§ã‚’誰も解説ã—ã¦ãã‚Œãªã„ã‹ã‚‰è§£èª¬ã™ã‚‹ - Qiita
TL;DR; Amazon Auroraã¯In-Memory DBã§ã‚‚ãªãDisk-Oriented DBã§ã‚‚ãªãã€In-KVS DBã¨ã§ã‚‚呼ã¶ã¹ã新地平ã«ç«‹ã£ã¦ã„る。 ãã®æ–¬æ–°ã•ãŸã‚‹ã‚„マスターã®ãƒ¡ã‚¤ãƒ³ãƒ¡ãƒ¢ãƒªã¯ã‚ャッシュã§ã‚ã‚ŠãªãŒã‚‰Write-Backã§ã‚‚ãªãWrite-Throughã§ã‚‚ãªã„ã¨ã„ã†é©šå¤©å‹•åœ°ã€‚ ã¤ã„ã§ã«å¾“æ¥ã®ãƒã‚§ãƒƒã‚¯ãƒã‚¤ãƒ³ãƒˆå‡¦ç†ã‚‚ä¸è¦ã«ãªã£ãŸã®ã§ã‚¹ãƒ«ãƒ¼ãƒ—ットもå‘上ã—ãŸã€‚ 詳細ãŒæ°—ã«ãªã‚‹äººã¯ã“ã®è¨˜äº‹ã‚’ãƒã‚§ã‚ï¼ Amazon Aurora Amazon Auroraã¯AWSã®ä¸ã§åˆ©ç”¨å¯èƒ½ãªãƒžãƒãƒ¼ã‚¸ãƒ‰(ï¼é‹ç”¨ã‚’AWSãŒé¢å€’見ã¦ãれる)ãªãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚µãƒ¼ãƒ“ス。 ユーザーã‹ã‚‰ã¯ãŸã ã®MySQLã€ã‚‚ã—ãã¯PostgreSQLã¨ã—ã¦æ‰±ã†äº‹ãŒã§ãã‚‹ã®ã§ãれらã«ä¾å˜ã™ã‚‹æ—¢å˜ã®ã‚¢ãƒ—リケーション資産をãã®ã¾ã¾åˆ©ç”¨ã™ã‚‹äº‹ãŒã§ãã¦ã€è½ã¡ãŸã‚‰å†èµ·å‹•ã—ãŸã‚Šã‚»ã‚ュリティパッãƒã‚’ダウンタイムãªã—ã§(!?)é©
Spanner - Qiita
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? ã“ã‚Œã¾ã§å¤šãã®ãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ã®è¦ç´ 技術を説明ã—ã¦ããŸã€‚ Googleã®å…¬é–‹ã—ã¦ã„ã‚‹è«–æ–‡Spanner: Google's Globally-Distributed Database ã¯å…¬é–‹å½“åˆã€è¦æ±‚ã•ã‚Œã‚‹å°‚門技術ã®å¤šã•ã‹ã‚‰ã‚ˆãã‚ã‹ã‚‰ãªã„ã¨è¨€ã£ã¦ã„る人ãŒå¤šã‹ã£ãŸãŒã€ã“ã‚Œã¾ã§ã«èª¬æ˜Žã—ãŸè¦ç´ 技術をベースã«ã™ã‚‹ã¨ç†è§£ã—ã‚„ã™ã„。 Spannerã¨ã¯ 複数ã®ãƒ‡ãƒ¼ã‚¿ã‚»ãƒ³ã‚¿ãƒ¼ã«è·¨ã£ã¦ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®å†…容を複製ã—続ã‘る事ã§é«˜ã„å¯ç”¨æ€§ã‚’実ç¾ã™ã‚‹ã¨ã„ã†æ§‹æƒ³ã¯æ•°å¤šãã‚ã£ãŸã€‚ ã—ã‹ã—ãれらã®åˆ†æ•£ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã¯å®Ÿç”¨çš„ãªé€Ÿåº¦ã‚’実ç¾ã—よã†ã¨ã™ã‚‹ã¨ã€ãƒ‡ãƒ¼ã‚¿ãƒ¢ãƒ‡ãƒ«ãŒãŸã ã®
Azure Cosmos DB: The industry’s first globally-distributed, multi-model database service - Azure ã®ãƒ–ãƒã‚° - Microsoft Azure
Today, we’re excited to announce the general availability of Azure Cosmos DB. Azure Cosmos DB is the first globally-distributed data service that lets you to elastically scale throughput and storage across any number of geographical regions while guaranteeing low latency, high availability and consistency – backed by the most comprehensive SLAs in the industry. Azure Cosmos DB is built to power to
Beringei: A high-performance time series storage engine
Operating large-scale, globally distributed services requires accurate monitoring of the health and performance of our systems to identify and diagnose problems as they arise. Facebook uses a time series database (TSDB) to track and store system measurements such as product stats (e.g., how many messages are being sent per minute), service stats (e.g., the rate of queries hitting the cache tier vs
一人トランザクション技術ã®ã‚«ãƒ¬ãƒ³ãƒ€ãƒ¼ | Advent Calendar 2016 - Qiita
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Spanner: Google's Globally-Distributed Database
Spanner is Google's scalable, multi-version, globally-distributed, and synchronously-replicated database. It is the first system to distribute data at global scale and support externally-consistent distributed transactions. This paper describes how Spanner is structured, its feature set, the rationale underlying various design decisions, and a novel time API that exposes clock uncertainty. This AP
SQL Injection Cheat Sheet | Invicti
Use our SQL Injection Cheat Sheet to learn about the different variants of the SQL injection vulnerability. In this cheat sheet you can find detailed technical information about SQL injection attacks against MySQL, Microsoft SQL Server, Oracle and PostgreSQL SQL servers. What is an SQL injection cheat sheet? An SQL injection cheat sheet is a resource where you can find detailed technical informati
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State of Databases Survey - 2023
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Spanner
http://db.csail.mit.edu/pubs/silo.pdf
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