DeNAãŒç¤¾å†…利用ã—ã¦ã„ã‚‹MySQLã®è‡ªå‹•ãƒ•ã‚§ã‚¤ãƒ«ã‚ªãƒ¼ãƒãƒ¼ãƒ„ールã€ã‚ªãƒ¼ãƒ—ンソースã§å…¬é–‹é–‹å§‹MySQLãŒãƒ€ã‚¦ãƒ³ã—ãŸã¨ãã«è‡ªå‹•çš„ã«åˆ¥ã®MySQLã¸å‡¦ç†ã‚’引ã継ãã“ã¨ã§ã€é«˜å¯ç”¨æ€§ã‚’実ç¾ã™ã‚‹ãƒ•ã‚§ã‚¤ãƒ«ã‚ªãƒ¼ãƒãƒ¼ãƒ„ール「MySQL-MHA: MySQL Master High Availability manager and toolsã€ãŒã‚ªãƒ¼ãƒ—ンソースã¨ã—ã¦å…¬é–‹ã•ã‚ŒãŸã“ã¨ã‚’ã€ä½œè€…ã®æ¾ä¿¡å˜‰ç¯„（ã¾ã¤ã®ã¶ã‚ˆã—ã®ã‚Šï¼‰æ°ãŒãƒ–ãƒã‚°ã§ä¼ãˆã¦ã„ã¾ã™ã€‚ Yoshinori Matsunobu's blog: Announcing MySQL-MHA: "MySQL Master High Availability manager and tools" æ¾ä¿¡æ°ã¯ãƒ¢ãƒã‚²ãƒ¼ãªã©ã§çŸ¥ã‚‰ã‚Œã‚‹DeNAã«å‹¤å‹™ã—ã¦ãŠã‚Šã€MySQL-MHAã«ã‚ˆã‚‹è‡ªå‹•ãƒ•ã‚§ã‚¤ãƒ«ã‚ªãƒ¼ãƒãƒ¼æ©Ÿèƒ½ã¯DeNAã®ã‚¤ãƒ³ãƒ•ãƒ©é‹ç”¨ã‚’支ãˆã¦ã„ã‚‹ã¨ã®ã“ã¨ã€‚åŒæ°ã®ãƒ–ãƒã‚°ã‹ã‚‰å¼•ç”¨ã—ã¾ã™ã€‚ Difficulties of master failover is one of
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