Grails w/GORM MongoDB插件：org.Grails.datastore.mapping.core.OptimisticLockingException

我有一个每隔几分钟运行一次的作业，一个新的域对象被实例化并用api调用的数据填充，然后调用.save（）提交到数据库

此应用程序使用GORM Mongo插件

在将新war部署到测试箱后，每次作业开始并试图处理文件时，我都会收到

org.grails.datastore.mapping.core.OptimisticLockingException

，然后调用api，然后保存结果。日志（&error）指向.save（）调用

日志显示“正在分析文件内容”后引发错误

下面的stacktrace可能是杀伤力过大

Heuristic completion: outcome state is rolled back; nested exception is org.springframework.transaction.TransactionSystemException: Could not commit Datastore transaction; nested exception is org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
org.springframework.transaction.HeuristicCompletionException: Heuristic completion: outcome state is rolled back; nested exception is org.springframework.transaction.TransactionSystemException: Could not commit Datastore transaction; nested exception is org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
   at org.grails.datastore.gorm.GormStaticApi.withNewSession(GormStaticApi.groovy:756)
   at grails.plugins.quartz.GrailsJobFactory$GrailsJob.execute(GrailsJobFactory.java:102)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.transaction.TransactionSystemException: Could not commit Datastore transaction; nested exception is org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
   at org.grails.datastore.mapping.transactions.DatastoreTransactionManager.doCommit(DatastoreTransactionManager.java:156)
   ... 8 more
Caused by: org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
   at org.grails.datastore.mapping.mongo.engine.MongoEntityPersister$5.doInDB(MongoEntityPersister.java:664)
   at org.grails.datastore.mapping.mongo.engine.MongoEntityPersister.updateEntry(MongoEntityPersister.java:625)
   at org.grails.datastore.mapping.mongo.engine.MongoEntityPersister.updateEntry(MongoEntityPersister.java:82)
   at org.grails.datastore.mapping.engine.NativeEntryEntityPersister$2.run(NativeEntryEntityPersister.java:862)
   at org.grails.datastore.mapping.core.impl.PendingOperationExecution.executePendingOperation(PendingOperationExecution.java:33)
   at org.grails.datastore.mapping.core.AbstractSession.flushPendingOperations(AbstractSession.java:364)
   at org.grails.datastore.mapping.core.AbstractSession.flushPendingUpdates(AbstractSession.java:343)
   at org.grails.datastore.mapping.core.AbstractSession.flush(AbstractSession.java:263)
   at org.grails.datastore.mapping.mongo.MongoSession.flush(MongoSession.java:126)
   at org.grails.datastore.mapping.transactions.DatastoreTransactionManager.doCommit(DatastoreTransactionManager.java:151)
   ... 8 more
org.springframework.transaction.HeuristicCompletionException: Heuristic completion: outcome state is mixed; nested exception is org.springframework.transaction.UnexpectedRollbackException: Transaction rolled back because it has been marked as rollback-only
   at org.grails.datastore.gorm.GormStaticApi.withNewSession(GormStaticApi.groovy:756)
   at grails.plugins.quartz.GrailsJobFactory$GrailsJob.execute(GrailsJobFactory.java:102)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.transaction.UnexpectedRollbackException: Transaction rolled back because it has been marked as rollback-only
   ... 6 more

在尝试tomcat重启、检查mongo连接等之后，我通过删除域对象mongo集合（我最近对域对象做了一系列更改）解决了这种行为。是否可能是域对象更改和mongo/GORM数据模型冲突导致此错误？如果是这样，我如何避免将来需要删除集合

---

我认为不可能有其他东西正在访问同一个域集合，因此我不认为这是一个乐观锁定异常，但如果是，我可以在mongo端运行哪些命令来查看哪些连接正在访问该集合？

您好，您找到解决方案了吗？

Heuristic completion: outcome state is rolled back; nested exception is org.springframework.transaction.TransactionSystemException: Could not commit Datastore transaction; nested exception is org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
org.springframework.transaction.HeuristicCompletionException: Heuristic completion: outcome state is rolled back; nested exception is org.springframework.transaction.TransactionSystemException: Could not commit Datastore transaction; nested exception is org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
   at org.grails.datastore.gorm.GormStaticApi.withNewSession(GormStaticApi.groovy:756)
   at grails.plugins.quartz.GrailsJobFactory$GrailsJob.execute(GrailsJobFactory.java:102)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.transaction.TransactionSystemException: Could not commit Datastore transaction; nested exception is org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
   at org.grails.datastore.mapping.transactions.DatastoreTransactionManager.doCommit(DatastoreTransactionManager.java:156)
   ... 8 more
Caused by: org.grails.datastore.mapping.core.OptimisticLockingException: The instance was updated by another user while you were editing
   at org.grails.datastore.mapping.mongo.engine.MongoEntityPersister$5.doInDB(MongoEntityPersister.java:664)
   at org.grails.datastore.mapping.mongo.engine.MongoEntityPersister.updateEntry(MongoEntityPersister.java:625)
   at org.grails.datastore.mapping.mongo.engine.MongoEntityPersister.updateEntry(MongoEntityPersister.java:82)
   at org.grails.datastore.mapping.engine.NativeEntryEntityPersister$2.run(NativeEntryEntityPersister.java:862)
   at org.grails.datastore.mapping.core.impl.PendingOperationExecution.executePendingOperation(PendingOperationExecution.java:33)
   at org.grails.datastore.mapping.core.AbstractSession.flushPendingOperations(AbstractSession.java:364)
   at org.grails.datastore.mapping.core.AbstractSession.flushPendingUpdates(AbstractSession.java:343)
   at org.grails.datastore.mapping.core.AbstractSession.flush(AbstractSession.java:263)
   at org.grails.datastore.mapping.mongo.MongoSession.flush(MongoSession.java:126)
   at org.grails.datastore.mapping.transactions.DatastoreTransactionManager.doCommit(DatastoreTransactionManager.java:151)
   ... 8 more
org.springframework.transaction.HeuristicCompletionException: Heuristic completion: outcome state is mixed; nested exception is org.springframework.transaction.UnexpectedRollbackException: Transaction rolled back because it has been marked as rollback-only
   at org.grails.datastore.gorm.GormStaticApi.withNewSession(GormStaticApi.groovy:756)
   at grails.plugins.quartz.GrailsJobFactory$GrailsJob.execute(GrailsJobFactory.java:102)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.transaction.UnexpectedRollbackException: Transaction rolled back because it has been marked as rollback-only
   ... 6 more