我有一个spring启动应用程序，而hibernate异常每天在晚上的某个特定时间出现。例外情况是：
could not execute statement; SQL [n/a]; nested exception is org.hibernate.PessimisticLockException: could not execute statement以下是堆栈跟踪：
Caused by: org.hibernate.PessimisticLockException: could not execute statement
at org.hibernate.dialect.MySQLDialect$3.convert(MySQLDialect.java:537)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:200)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3421)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:3283)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3695)
at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:149)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:604)
at org.hibernate.engine.spi.ActionQueue.lambda$executeActions$1(ActionQueue.java:478)
at java.util.LinkedHashMap.forEach(LinkedHashMap.java:684)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:475)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:348)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:40)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1344)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:435)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3221)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2389)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:447)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:183)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$300(JdbcResourceLocalTransactionCoordinatorImpl.java:40)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:281)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:101)
at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:534)
... 117 common frames omitted
Caused by: com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException: Lock wait timeout exceeded; try restarting transaction
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:123)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1092)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1040)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeLargeUpdate(ClientPreparedStatement.java:1347)
at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdate(ClientPreparedStatement.java:1025)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:410)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:197)
... 138 common frames omitted我检查了日志，找不到任何可能引发此问题的主要问题。有人能指导如何调试这个特殊的问题，或者采取什么方法来分析这个异常吗？
1条答案
按热度按时间axkjgtzd1#
似乎mysqltransactionrollbackexception表示事务正在等待另一个事务的锁被释放。您提到它发生在一天中的某个特定时间，这表明某个定时备份作业或某个其他作业正在该特定表上运行。
例如，在mysql中，这些信息存储在information\u schema.events表中，因此您可以运行“select*from information\u schema.events”来查看计划作业的列表及其相关信息。