![]() Next, execute the following on two different connections: - connection 0. Hi, all Under increased load (which comes in spikes), I noticed lots of mysql deadlock errors resulting in failed transactions and incorrectly discovered. The problem was originally noted by customer on MariaDB 5.5.24, but affects all released versions up to those based on InnoDB from 5.7.x for sure.Īs there is no visible progress on upstream bugs, I create this bug report for MariaDB to decide if there is anything to fix here or to document clearly in the knowledge base. Here are the statements you need to execute: create table test.innodbdeadlockmaker (a int primary key) engineinnodb insert into test.innodbdeadlockmaker (a) values (0), (1) Now the table and its data are set up. To resolve this issue, follow either of the below approaches: We have developed an EBF where ODBCSTATE- 40001 is added under the fatal error code only when the underlying DB is MySQL. That is the reason the record loss can be seen. Mysqlslap: Cannot run query delete from tu where a = 9999 and b = 'xxxx' ERROR : Deadlock found when trying to get lock try restarting transactionĭeadlock happens both with triggers mentioned in that bug reports and without them (just less often). a transaction deadlock causes MySql to roll back the entire transaction. ![]() Mysqlslap -uroot -concurrency=3 -create-schema=test -no-drop -number-of-queries=1000 -query="delete from tu where a = 9999 and b = 'xxxx'" CREATE TABLE `tu`(`id` int(11), `a` int(11) DEFAULT NULL, `b` varchar(10) DEFAULT NULL, `c` varchar(10) DEFAULT NULL, PRIMARY KEY(`id`), UNIQUE KEY `u`(`a`,`b`)) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=0 : : Deadlock found when trying to get lock try restarting transaction at .convert (AbstractEntityManagerImpl.java:1377) at .convert (AbstractEntityManagerImpl.java:1300) a.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |