TNS-12547: TNS:lost contact

报错如下：

Fatal NI connect error 12547, connecting to:

 (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: 18-MAR-2016 15:18:39
  Tracing not turned on.
  Tns error struct:
    ns main err code: 12547
    
TNS-12547: TNS:lost contact
    ns secondary err code: 12560
    nt main err code: 0
    nt secondary err code: 0
    nt OS err code: 0
opiodr aborting process unknown ospid (5635) as a result of ORA-609


在listener.ora里面添加 inbound_connect_timeout=0无效


然后重启lsnrctl服务也无效，最后重启oracle服务器，问题解决了。