Exception occured while refreshing ACA cache

Document ID : KB000111120
Last Modified Date : 15/08/2018
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Issue:
We saw this error in the IntroscopeEnterpriseManager.log

8/08/18 07:14:47.432 PM BST [ERROR] [pool-29-thread-2] [Manager.AppMap] Exception occured while refreshing ACA cache
org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Data source is closed


Any idea why this error occurred and how to avoid it in future?
 
Environment:
APM 10.7 Linux
Cause:
The information "Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Data source is closed" indicates that the Enterprise Manager was unable to connect to the APM database
Resolution:
In this situation the problem can be ignored as the error was reported during the Enterprise manager shutdown - as can be seen in a previous log entry

8/08/18 07:13:48.684 PM BST [INFO] [Thread-654] [Manager] Beginning orderly shutdown...

If this message occurs and there is no such logical explanation then check the database status and if further assistance is required contact CA Support.