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我有一个调度程序来安排作业在特定时间运行。根据给定的 cron 表达式，它包含大约 10 个要运行的作业。但有时某些作业会出现异常“CannotSerializeTransactionException”失败，而且这种情况发生得最频繁。

我们有一个 platformTransactionManager，它返回给动态创建的 jobRepository。

@Bean(name = "jpaTransactionManager")
    @Primary
    public PlatformTransactionManager jpaTransactionManager() throws SQLException{
        return new JpaTransactionManager(this.entityManagerFactory().getObject());
    }

因此，我无法为 jobRepository 设置隔离级别。现在如何解决问题以解决错误。我试图调查这个问题，但我不明白是什么导致工作失败。

    public void dailyStatusEmailNotificationJobRun() throws JobExecutionAlreadyRunningException, JobRestartException, JobInstanceAlreadyCompleteException, JobParametersInvalidException{
        final JobParameters jobParameters = new JobParametersBuilder().addDate(START_TIME, new Date(System.currentTimeMillis())).toJobParameters();
        jobLauncher.run(dailyStatusEmailNotifyJob, jobParameters);

    }```

I expect the jobs should run correctly.

The error trace thrown is:
[batch] 05.07.2019 09:00:00.270 [OUT] [ERROR] [            ] [         ] org.springframework.scheduling.support.TaskUtils$LoggingErrorHandler Unexpected error occurred in scheduled task.
org.springframework.dao.CannotSerializeTransactionException: PreparedStatementCallback; SQL [INSERT into BATCH_JOB_INSTANCE(JOB_INSTANCE_ID, JOB_NAME, JOB_KEY, VERSION) values (?, ?, ?, ?)]; ORA-08177: can't serialize access for this transaction
; nested exception is java.sql.SQLException: ORA-08177: can't serialize access for this transaction

    at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:267) ~[spring-jdbc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73) ~[spring-jdbc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:660) ~[spring-jdbc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:909) ~[spring-jdbc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:970) ~[spring-jdbc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:975) ~[spring-jdbc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.batch.core.repository.dao.JdbcJobInstanceDao.createJobInstance(JdbcJobInstanceDao.java:115) ~[spring-batch-core-3.0.7.RELEASE.jar:3.0.7.RELEASE]
    at org.springframework.batch.core.repository.support.SimpleJobRepository.createJobExecution(SimpleJobRepository.java:135) ~[spring-batch-core-3.0.7.RELEASE.jar:3.0.7.RELEASE]
    at sun.reflect.GeneratedMethodAccessor174.invoke(Unknown Source) ~[?:?]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) ~[spring-tx-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.batch.core.repository.support.AbstractJobRepositoryFactoryBean$1.invoke(AbstractJobRepositoryFactoryBean.java:172) ~[spring-batch-core-3.0.7.RELEASE.jar:3.0.7.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at com.sun.proxy.$Proxy181.createJobExecution(Unknown Source) ~[?:?]
    at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:125) ~[spring-batch-core-3.0.7.RELEASE.jar:3.0.7.RELEASE]
    at sun.reflect.GeneratedMethodAccessor172.invoke(Unknown Source) ~[?:?]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) ~[spring-batch-core-3.0.7.RELEASE.jar:3.0.7.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) ~[spring-aop-4.1.6.RELEASE.jar:4.1.6.RELEASE]
    at com.sun.proxy.$Proxy206.run(Unknown Source) ~[?:?]
    at at.sitsolutions.services.ftm.batch.service.scheduler.batchScheduler.dailyStatusEmailNotificationJobRun(batchScheduler.java:229) ~[ftm-batch-service-2.11.0-SNAPSHOT.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191]
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