我们每周一次在应用程序中遇到以下异常情况。当服务器重新启动时，它可以正常工作几天，然后再次运行，但有相同的例外。我们认为这是一个代码问题，因此直接连接，并将池大小从80增加到100。但是没有用，仍然面临着同样的问题。我们正在使用jboss服务器，oracle数据库
[20/11/19 04:00:07:007 UTC] ERROR jdbcjobstore.JobStoreTX: ClusterManager: Error managing cluster: Failed to obtain DB connection from data source 'dnets': java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:jboss/cdgDataSource' java.sql.SQLException: javax.resource.ResourceException: IJ000451: The connection manager is shutdown: java:jboss/cdgDataSource
org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'dnets': java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:jboss/cdgDataSource' java.sql.SQLException: javax.resource.ResourceException: IJ000451: The connection manager is shutdown: java:jboss/cdgDataSource [See nested exception: java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:jboss/cdgDataSource' java.sql.SQLException: javax.resource.ResourceException: IJ000451: The connection manager is shutdown: java:jboss/cdgDataSource]
at org.quartz.impl.jdbcjobstore.JobStoreSupport.getconnection(JobStoreSupport.java:778)
at org.quartz.impl.jdbcjobstore.JobStoreTX.getNonmanagedTXConnection(JobStoreTX.java:71)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.doCheckin(JobStoreSupport.java:3245)
at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:3858)
at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:3895)
Caused by: java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:jboss/cdgDataSource' java.sql.SQLException: javax.resource.ResourceException: IJ000451: The connection manager is shutdown: java:jboss/cdgDataSource
at org.quartz.utils.JNDIConnectionProvider.getconnection(JNDIConnectionProvider.java:163)
at org.quartz.utils.DBConnectionmanager.getconnection(DBConnectionmanager.java:108)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.getconnection(JobStoreSupport.java:775)
... 4 more