\u00a0In this blog post we have explained about “MySQL Connection Timeout Parameters<\/strong>” , If your application is not efficiently handling MySQL connection management we strongly recommend to use MySQL Connection Timeout Parameters \/ System Variables ( note:<\/em>\u00a0please do not tune Connection Timeout<\/strong> system\u00a0<\/em>variables without clearly understanding how they work, The wrong assumptions can bring\u00a0down you MySQL infrastructure seriously affecting your\u00a0businesses negatively<\/i>) to avoid situations where you can see so many connections to MySQL doing nothing. It’s worth spending time researching on MySQL Timeout System Variables for troubleshooting performance especially when application is not gracefully closing all the open connections. The following MySQL Connection Timeout Parameters \/ System Variables are discussed in this post:<\/p>\n innodb_lock_wait_timeout is applicable only to InnoDB row locks. Because, MySQL table lock<\/a><\/span> does not happen inside InnoDB and vice versa, his timeout does not apply to waits for table locks. By default innodb_deadlock_detect is enabled because InnoDB detects deadlocks immediately and rolls back the deadlocked transactions so lock wait timeout value does not apply to deadlocks<\/a><\/span>\u00a0. But, If innodb_deadlock_detect is disabled, then InnoDB relies on\u00a0innodb_lock_wait_timeout\u00a0<\/em>for transaction rollback when a deadlock occurs. \u00a0<\/span><\/li>\n In some cases, we have to manage connection handling in MySQL by setting timeout values for avoiding performance bottlenecks which will negatively impact your performance. But, setting timeout variables too aggressively is also not good so please do your research thoroughly before implementing same on MySQL production systems.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" MySQL Connection Timeout Parameters \u00a0In this blog post we have explained about “MySQL Connection Timeout Parameters” , If your application is not efficiently handling MySQL connection management we strongly recommend to use MySQL Connection Timeout […]<\/a><\/p>\n<\/div>","protected":false},"author":10,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"\n\n
ERROR 1205 (HY000): Lock wait timeout exceeded; try restarting transaction<\/pre>\n
Conclusion<\/h4>\n