Windows: Listener on Windows OS can Hang or Become Slow to Respond if "FireEye" Security Service is Running
(Doc ID 2612592.1)
Last updated on DECEMBER 11, 2019
Applies to:Oracle Net Services - Version 126.96.36.199 to 188.8.131.52.0 [Release 11.2 to 18.1]
Microsoft Windows x64 (64-bit)
Remote client connections hang or are extremely slow to become established to the database.
The alert reveal a lot of these error messages that correspond to the connection failures.
Fatal NI connect error 12537, connecting to:
TNS for 64-bit Windows: Version 184.108.40.206.0 - Production
Oracle Bequeath NT Protocol Adapter for 64-bit Windows: Version 220.127.116.11.0 - Production
Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: Version 18.104.22.168.0 - Production
Time: 14-NOV-2019 22:04:55
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
nt OS err code: 0
opiodr aborting process unknown ospid (41920) as a result of ORA-609
Thu Nov 14 22:05:25 2019
Also, the listener process is slow to respond when issuing any commands, such as LSNRCTL status or services.
There are no errors in the listener log that correspond to this problem.
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