opiodr aborting process unknown ospid as a result of ORA-609

Cause: The ORA-609 error is thrown when a client connection of any kind failed to complete or aborted the connection process before the server process was completely spawned. This is also triggered, when a DB session is killed/aborted manually from the OS prompt. From 10g R2, a default value for inbound connect timeout has been set at 60 seconds. Related Issue: TNS-12637: Packet receive failed ns secondary err code: 12532 nt main err code: 0 nt secondary err code: 0 nt OS err code: 0 opiodr aborting process unknown ospid (11632) as a result of ORA-609 opiodr aborting process unknown ospid (91631) as a result of ORA-609 opiodr aborting process unknown ospid (31632) as a result of ORA-609

Solution: Increase the values for INBOUND_CONNECT_TIMEOUT at both listener and server side sqlnet.ora file as a preventive measure. If the problem is due to connection timeouts, an increase in the following parameters should eliminate or reduce the occurrence of the ORA-609 s. Sqlnet.ora: SQLNET.INBOUND_CONNECT_TIMEOUT=180 Listener.ora: INBOUND_CONNECT_TIMEOUT_listener_name=120

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