Google Megastore - kuenishi's blogGoogle Megastoreã«ã¤ã„ã¦ä»Šæ›´ãªãŒã‚‰èª¿ã¹ãŸã‚ˆ SIGMOD 2008 (6/10-12)ã§ç™ºè¡¨ã•ã‚ŒãŸ Megastoreã¯BigTableã®ä¸Šä½ã«ä¹—ã›ã‚‰ã‚ŒãŸãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ãƒžãƒãƒ¼ã‚¸ãƒ£ï¼ˆã®ã‚ˆã†ãªã‚‚ã®"a transactional indexed record manager built on top of BigTable"）。Google AppEngineã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã§ç”¨ã„られã¦ã„ã‚‹ã¨ã„ã†å™‚ã‚‚ã‚る（BigTableã¯1 rowã®ãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ã—ã‹å®Ÿç¾ã—ã¦ã„ãªã„ã¯ãšãªã®ã«ã€GAEã§ã¯è¤‡æ•°è¡Œã®ãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ãŒã‚µãƒãƒ¼ãƒˆã•ã‚Œã¦ã„ã‚‹ãŸã‚）。 æ¦‚è¦ è¤‡æ•°ãƒ¬ã‚³ãƒ¼ãƒ‰ã§æ§‹æˆã•ã‚ŒãŸã²ã¨ã¾ã¨ã¾ã‚Šã®"entity group"ã®ä¸ã§ã¯ã€ãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ãŒå¯èƒ½ã€‚entity groupã¯ã‚ー値ã®prefixを共有。entity groupã¯éšŽå±¤åŒ–ã•ã‚ŒãŸentityã®é›†åˆã§ã‚る。entity
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