[Oracle] opiodrabortingprocessunknownospid (***) asaresultofORA-609

Today, an online database (version 11.2.0.1) cannot establish a new connection, but the original connection is not affected. alert. log reports the following error:

Opiodr aborting process unknown ospid (22997) as a resultORA-609

However, the listener. log shows that the connection has been established.

03-APR-2014 16:05:44 * (CONNECT_DATA = (SERVICE_NAME = orcl2.localdomain) (CID = (PROGRAM = python @ lx151) (HOST = lx151) (USER = gl ))) * (ADDRESS = (PROTOCOL = tcp) (HOST = 10.10.100.151) (PORT = 52903 ))*Establish* Orcl2.localdomain * 0

Error 12537 is reported in sqlnet. log.

Fatal NI connect error 12537, connecting:
(LOCAL = NO)
Version information:
TNS for Linux: Version 11.2.0.1.0-Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 11.2.0.1.0-Production
TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.1.0-Production
Time: 03-APR-2014 15:24:30
Tracing not turned on.
Tns error struct:
Ns main err code: 12537
TNS-12537: TNS: connection closed
Ns secondary err code: 12560
Nt main err code: 0
Nt secondary err code: 0

When lsnrctl status is used to view the listener status, the listener is stuck.

By querying the official documentation, know this is a bug, and then according to the online search solution, link: http://forums.oracle.com/forums/thread.jspa? MessageID = 4489745

The host file/etc/resolv. conf is deleted and restored.The specific reason is unclear. This is only a temporary solution. To solve this problem completely, you should upgrade it.