My Oracle Support Banner

ORA-03135 on TTnn process in Standby Database With Sqlnet.send_timeout (Doc ID 2285110.1)

Last updated on MARCH 09, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.


If SQLNET.SEND_TIMEOUT is set in the sqlnet.ora file of the Physical Standby Database and the specified timeout has been passed, the connection between TTnn process of the primary database and RFS on standby database disconnected.  This issue occurs only on LGWR/ASYNC log transportation.  The alert.log reports ORA-3135 on TTnn and TNS-12535 on RFS.



 This problem is reported when following all conditions are satisfied.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.