Yes, Please find the below details.
[11/15/16 3:00:08:706 CET] 00000152 OEBSRA001 E com.ibm.j2ca.oracleebs.runtime.OracleManagedConnection getWBIConnection CWYDB0201E: The adapter could not establish a connection to the database for the following reason: The Network Adapter could not establish the connection DSRA0010E: SQL State = 61000, Error Code = 20. Explanation=The problem might be in the driver, the database, or the user credentials provided. The reason stated in the error message can help you identify the problem. UserAction=Analyze the reason for the failure to establish a connection, and fix the related setup problems.
[11/15/16 3:00:08:765 CET] 00000152 MCWrapper E J2CA0021E: An exception occurred while trying to get a Connection from the Managed Connection resource : javax.resource.ResourceException: The Network Adapter could not establish the connection DSRA0010E: SQL State = 61000, Error Code = 20
Caused by: com.ibm.websphere.ce.cm.StaleConnectionException: The Network Adapter could not establish the connection DSRA0010E: SQL State = 61000, Error Code = 20
11/15/16 3:00:31:993 CET] 00000156 WSJdbcConnect W DSRA9400E: Fatal error occurred during Connection reassociation: javax.resource.spi.ResourceAllocationException: DSRA8100E: Unable to get a XAConnection from the DataSource.
[11/15/16 3:42:26:046 CET] 000006a8 MCWrapper E J2CA0081E: Method destroy failed while trying to execute method destroy on ManagedConnection com.ibm.j2ca.oracleebs.runtime.OracleManagedConnection@d7f7bfd8 from resource No longer available. Caught exception: javax.resource.ResourceException: com.ibm.websphere.ce.cm.ObjectClosedException: DSRA9110E: Connection is closed.
Above are few noticable lines from Sysoutlog.
Purge policy is "Entire Pool". Post this error we were not able to release the stale connections automatically. we even tried purging manually and later had to do restart server.
As per IBM Documentation i have checked few key configurations in DS, Minumum Connection = 0 , Unused Reap time = 1800 seconds .