App servers on ABC instance is down and couldn't connect to DB.
Error from app server log is as below:
[05/05/2023 11:58:13] CAUAJM_I_10655 System is running in single server mode. Event server: ORCL.
[05/05/2023 11:58:13] CAUAJM_E_18407 Failed to connect to Oracle server: ORCL
[05/05/2023 11:58:13] CAUAJM_E_18400 An error has occurred while interfacing with ORACLE.
[05/05/2023 11:58:13] CAUAJM_E_18401 Function <Olog> invoked from <openProc> failed <163>
[05/05/2023 11:58:13] CAUAJM_E_18402 ORA-28791: certificate verification failure
[05/05/2023 11:58:13] CAUAJM_E_10649 Server sid was not available during connection operation.
[05/05/2023 11:59:13] CAUAJM_E_18407 Failed to connect to Oracle server: sid
[05/05/2023 11:59:13] CAUAJM_E_18400 An error has occurred while interfacing with ORACLE.
[05/05/2023 11:59:13] CAUAJM_E_18401 Function <Olog> invoked from <openProc> failed <163>
[05/05/2023 11:59:13] CAUAJM_E_18402 ORA-28791: certificate verification failure
[05/05/2023 11:59:13] CAUAJM_E_10649 Server sid was not available during connection operation.
Bounced the app server services, services are up but still it is not working.
all commands gives error:
CAUAJM_E_10029 Communication attempt with the AutoSys Application Server has failed! [ashost:9000]
CAUAJM_E_10221 Exhausted list of available Application Server(s). Failing request.
CAUAJM_E_50033 Error initializing tx subsystem: CAUAJM_E_10062 Failed to get initial configuration from AutoSys Application Server(s).
Release : 12.1.01
User generated new certificates and replaced the existing ones based on the following error:
ORA-28791: certificate verification failure.
The issue was resolved with the new certificates.