DGMGRL> switchover to prod1
Performing switchover NOW, please wait...Error: ORA-16775: target standby database in broker operation has potential data loss

Failed.
Unable to switchover, primary database is still "sbdb1"

SQL> select error from v$archive_dest where dest_id = 2;ERROR-----------------------------------------------------------------
ORA-00088: command cannot be executed by shared server

$ oerr ora 8800088, 00000, "command cannot be executed by shared server "// *Cause:  Debug command issued on shared server.// *Action: Reissue the command using a dedicated server.

PROD1 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = xxx01.example.com)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)      --这里显示指定
      (SERVICE_NAME = PROD1.us.oracle.com)
    )
  )

Error Id: ORA-00088

Title: command cannot be executed by shared server

Description:

command cannot be executed by shared server

Action:

Reissue the command using a dedicated server.

Cause:

Debug command issued on shared server.

Error Id: ORA-16775

Title: target standby database in broker operation has potential data loss

Description:

target standby database in broker operation has potential data loss

Action:

Query the SendQEntries monitorable property on the primary database to see which redo logs are missing. Confirm that the redo transport service on the primary database is functioning correctly by checking its status using the StatusReport monitorable property. Perform log switches on the primary database in order to activate the redo log gap fetching mechanism. Once all redo logs are available on the target standby database, reissue the broker command.

Cause:

The target standby database in the broker operation did not have all the redo logs from the primary database. The switchover or protection mode upgrade to maximum protection could not be performed.

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