我使用spring boot，hibernate，JPA存储库和事件驱动应用程序的反应器来处理WebService。 我已经完成了一系列并行运行的长工作，并且我试图解决由此异常流引起的错误：
Could not execute statement; SQL [n/a]; nested exception is org.hibernate.PessimisticLockException: could not execute statement
org.springframework.dao.PessimisticLockingFailureException: could not execute statement; SQL [n/a];nested exception is org.hibernate.PessimisticLockException: could not execute statement
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Caused by: org.hibernate.PessimisticLockException: could not execute statement
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Caused by: org.h2.jdbc.JdbcSQLException: Timeout trying to lock table ; SQL statement: update
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Caused by: org.h2.jdbc.JdbcSQLException: Concurrent update in table "INTERACTIVE_EXPERIMENT": another transaction has updated or deleted the same row [90131-191]
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Caused by: reactor.core.support.Exceptions$ValueCause: Exception while signaling value: reactor.bus.Event.class : Event{id=null, headers=null, replyTo=null, key=channel2, data=InteractiveExperiment(id=60, instanceName=myJson, simulationsManager=it.polimi.diceH2020.launcher.model.SimulationsWIManager@2a074bbd, simType=WI, thinkTime=10000, numUsers=1, numVMs=1, responseTime=0.0, gamma=null, provider=, numSolutions=0, iter=3, experimentalDuration=0, state=error, done=false)}
我得到＆＃34;表中的并发更新＆＃34; INTERACTIVE_EXPERIMENT＆＃34;：另一个事务更新或删除了相同的行＆＃34;，我已经并发更新但它们都在不同的行上！ （但他们有一个共同的@ManyToOne字段。）
我已尝试过乐观和悲观的锁定，但没有解决这个问题。 通过几个并发更新，我得到了这个错误。