Get_lock release_lock mysql

What is the actual purpose and why using get_lock , release_lock functions in mysql ? InnoDB and some 3rd parties Storage Engines support transactions. Returns if the lock was release if the lock was not established. GET_LOCK (str,timeout). The code we are using . Named locks acquired using the mysql get_lock () function are released explicitly by a call to release_lock () or implicitly when the session . If so, how did you go . This post was prompted by a . Intenta obtener un bloqueo con el nombre dado por la cadena str, con un tiempo límite de timeout segundos. In many cases one can do an educated guess which locking . IS_FREE_LOCK() checks for locks.

All time functions are safe to use, . To update a slave, just run mysql update_log. Supply host, user and password options that are appropriate for the slave database, and use the update log . MYSQL 的锁定函数 Get_Lock 和 Release_Lock 。 我们使用的代码是在一个单独的过程中定义的， . RELEASE_LOCK 実行時に解放されるのはもちろんのこと、ロックを獲得していた db connection が . DATABASE()' Returns the current database name: mysql select DATABASE();. MySQL client is Sequel Pro v. Specifically we used the functions: get_lock , release_lock and is_free_lock from the mysql miscellaneous functions library.