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Switchover using DGMGRL fails with ORA-3113 (Doc ID 1061718.1)

Last updated on MARCH 06, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.1 to 10.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud 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
Generic Windows
Oracle Data Guard
Oracle Real Application Clusters
Windows Generic


When attempting to perform switchover to a physical standby with DGMGRL, the session is disconnected:

DGMGRL> switchover to <standby>;
Performing switchover NOW, please wait......
ORA-3113 end of file on communication channel
Switchover failed, primary is still <primary>

If Grid Control is used, the Create Standby job may show the following error in the failed task:

SQL Exception:No more data to read from socket


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