WCC (Workload Control Center) service unable to start with below errors in CA-wcc.log file:
INFO | jvm 1 | 2021/11/19 03:34:15 | 271 | SEVERE: Unable to create initial connections of pool.
INFO | jvm 1 | 2021/11/19 03:34:15 | 271 | java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection
INFO | jvm 1 | 2021/11/19 03:34:15 | 271 | Caused by: oracle.net.ns.NetException: The Network Adapter could not establish the connection
INFO | jvm 1 | 2021/11/19 03:34:15 | 271 | Caused by: java.io.IOException: Connection timed out, socket connect lapse 127346 ms. /10.1.2.3 1521 0 1 true
INFO | jvm 1 | 2021/11/19 03:34:15 | 271 | Caused by: java.net.ConnectException: Connection timed out
Release : 11.4.X
Component : Workload Control Center
WCC server unable to connect to Database server.
Check with your DBA to verify below:
If all looks good, try restarting the DB and WCC Servers.