mysql存储过程不释放锁

我有一个存储过程获取锁，运行select，做一些简单的处理并运行插入。这一年来运行良好，但今天每隔一段时间，连接都会保持锁定状态，直到锁定超时为止。所以，如果我使用mysql存储过程不释放锁

select IS_USED_LOCK('up_XML_insertUIAudit_lock');

我可以确定哪些连接持有锁并杀死它。任何想法可能会导致这种情况？

DELIMITER $$ 

DROP PROCEDURE IF EXISTS `aquadev`.`up_XML_insertUIAudit` $$ 
CREATE DEFINER=`richard`@`%` PROCEDURE `up_XML_insertUIAudit`(in UserName VARCHAR(45), 
    in ActionType VARCHAR(45), 
    in Version VARCHAR(45), 
    in WaitInterval BIGINT, 
    in StartAgainTS DATETIME) 
BEGIN 
    declare id int; 
    declare lockStatus int; 
    declare WaitIntervalStr VARCHAR(40); 
    declare StartAgainTSStr VARCHAR(19); 
    declare Description VARCHAR(255); 
    set id = null; 
    select GET_LOCK('up_XML_insertUIAudit_lock',600) into lockStatus; 

    select max(UIAuditID) into id from UIAudit; 
    if (id is not null) then 
    set id = id + 1; 
    else 
    set id = 0; 
    end if; 

    if (WaitInterval is null) then 
    set WaitIntervalStr = ''; 
    else 
    set WaitIntervalStr = convert(WaitInterval,char(40)); 
    end if; 

    if (StartAgainTS is null) then 
    set StartAgainTSStr = ''; 
    else 
    set StartAgainTSStr = convert(StartAgainTS,char(19)); 
    end if; 

    set Description = concat(WaitIntervalStr,StartAgainTSStr); 

    insert into UIAudit (UIAuditID,UserName,ActionType,Version,ProcessID,Description,UpdateTS) 
    values(id,UserName,ActionType,Version,null,Description,now()); 

    select RELEASE_LOCK('up_XML_insertUIAudit_lock') into lockStatus; 

END $$ 

DELIMITER ;

来源

2009-09-16 richs

如果程序错误在RELEASE_LOCK（）之前，它就不会被释放。

为什么不直接使用交易？

来源

2009-09-16 19:17:38 longneck

我修改了存储过程，在插入失败以测试你的理论。如果失败，它似乎会释放锁。是否有另一个错误，我应该用来测试这个？ – richs 2009-09-16 19:43:06

mysql存储过程不释放锁

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