Storage options on App Engine - Nick's Blog
Posted by Nick Johnson | Filed under app-engine, memcache, storage, datastore, task-queue App Engine provides a number of ways for your app to store data. Some, such as the datastore, are well known, but others are less so, and all of them have different characteristics. This article is intended to enumerate the different options, and describe the pros and cons of each, so you can make more inform
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グーグルã¯ã€ŒGoogle App Engine Blogã€ã«ã¦ã€ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã«2ã¤ã®æ–°æ©Ÿèƒ½ã€Eventual Consistency（çµæžœæ•´åˆæ€§ï¼‰ã¨Datastore Deadlineï¼ˆãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ãƒ‡ãƒƒãƒ‰ãƒ©ã‚¤ãƒ³ï¼‰ã‚’è¿½åŠ ã—ãŸã“ã¨ã‚’明らã‹ã«ã—ã¾ã—ãŸã€‚ã“ã‚Œã«ã‚ˆã‚Šé–‹ç™ºè€…ã¯ã€ãƒ‡ãƒ¼ã‚¿ã®ä¸€è²«æ€§ã¨å¯ç”¨æ€§ã®ã©ã¡ã‚‰ã‚’é‡è¦–ã™ã‚‹ã®ã‹ã€é¸ã¹ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚ プライマリãŒè½ã¡ã¦ã„ãŸã‚‰ã‚³ãƒ”ーを他ã®ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã‹ã‚‰å–å¾— Google App Engine Blog: Read Consistency & Deadlines: More control of your Datastore Eventual Consistency（çµæžœæ•´åˆæ€§ï¼‰ã‚ªãƒ—ションã¯ã€ãƒ—ライマリã®ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ä»¥å¤–ã®ãƒ‡ãƒ¼ã‚¿ã‚¹ãƒˆã‚¢ã«ã‚³ãƒ”ーã•ã‚ŒãŸãƒ‡ãƒ¼ã‚¿ã‚’èªã¿è¾¼ã‚€ã“ã¨ã‚’許ã™ã‚ªãƒ—ションã§ã™ã€‚ グーグルã®è§£èª¬ã«ã‚ˆã‚‹ã¨ã€ã“ã‚Œã¾ã§ã®Google App Engin
Datastoreã®tips - スティルãƒã‚¦ã‚¹ã®æ›¸åº«ã®æ›¸åº«
Datastoreã®ãƒ‘フォーマンス Datastoreã®ãƒ‘フォーマンスã¯ã€ã‚¨ãƒ³ãƒ†ã‚£ãƒ†ã‚£ã®æ•°ã¨ã¯ç„¡é–¢ä¿‚ ä¿å˜ã•ã‚Œã¦ã„るエンティティãŒ1件ã§ã‚‚ã€1000件ã§ã‚‚ã€1000万件ã§ã‚‚ã€ãƒ‘フォーマンスã«å¤‰åŒ–ã¯ãªã„ Datastore performance doesn't depend on how many entities you have 個々ã®ã‚¨ãƒ³ãƒ†ã‚£ãƒ†ã‚£ã«å¯¾ã™ã‚‹æ›´æ–°å‡¦ç†ã®ã‚¹ãƒ”ードã¯ã€1〜10回ï¼ç§’程度 個々ã®ã‚¨ãƒ³ãƒ†ã‚£ãƒ†ã‚£ã®æ›´æ–°å‡¦ç†ã¯é…ㄠアプリケーションã®ãƒ‘フォーマンスを決ã‚ã‚‹ã®ã¯ã€æ›´æ–°å‡¦ç†ã®å®Ÿè£…方法。å‚照処ç†ã¯æ¡é•ã„ã«é€Ÿã„ low-level APIを使ãˆã°å°‘ã—速ããªã‚‹ãŒã€ãƒ‰ã‚ュメントãŒã‚ã¾ã‚Šãªã„ http://groups.google.com/group/google-appengine-java/browse_thread/thread/e717f7ba37749ea4/0b37a3
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