12c DG Broker Configuration

12c DG Broker Configuration – Error ORA-16698

Issue

[oracle@rac1 ~]$ dgmgrl
DGMGRL for Linux: Release 12.2.0.1.0 - Production on Thu May 16 18:03:42 2019

Copyright (c) 1982, 2017, Oracle and/or its affiliates.  All rights reserved.

Welcome to DGMGRL, type "help" for information.
DGMGRL> connect /
Connected to "DELL"
Connected as SYSDG.
DGMGRL>
DGMGRL> create configuration 'DELL' as primary database is 'DELL' connect identifier is DELL;
Configuration "DELL" created with primary database "DELL"
DGMGRL>
DGMGRL> add database 'DELL_DG' as connect identifier is DELL_DG maintained as physical;
Error: ORA-16698: member has a LOG_ARCHIVE_DEST_n parameter with SERVICE attribute set

Failed.
DGMGRL>
DGMGRL> exit

Solution

1. Remove the DG Broker configuration

DGMGRL> remove configuration;
Removed configuration
DGMGRL>

2. Disable log_archive_dest_2

On Primary

SQL> show parameter log_archive_dest_2

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2                   string      SERVICE=DELL_DG LGWR ASYNC VAL
                                                 ID_FOR=(ONLINE_LOGFILES,PRIMAR
                                                 Y_ROLE) DB_UNIQUE_NAME=DELL_DG

SQL>

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='' scope=both;

System altered.

SQL> show parameter log_archive_dest_2

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2                   string

SQL>

On Standby

SQL> show parameter log_archive_dest_2

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2                   string      SERVICE=DELL LGWR ASYNC VALID_
                                                 FOR=(ONLINE_LOGFILES,PRIMARY_R
                                                 OLE) DB_UNIQUE_NAME=DELL
SQL>

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='' scope=both;

System altered.

SQL> show parameter log_archive_dest_2

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2                   string

SQL>

3. Disable / Enable DG Broker

On Primary

SQL> show parameter dg_broker_start

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dg_broker_start                      boolean     TRUE
SQL>
SQL> alter system set dg_broker_start=false scope=both;

System altered.

SQL> alter system set dg_broker_start=true scope=both;

System altered.

SQL>  show parameter dg_broker_start

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dg_broker_start                      boolean     TRUE

SQL>

On Standby

SQL> show parameter dg_broker_start

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dg_broker_start                      boolean     TRUE

SQL>
SQL> alter system set dg_broker_start=false scope=both;

System altered.

SQL> alter system set dg_broker_start=true scope=both;

System altered.

SQL> show parameter dg_broker_start

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dg_broker_start                      boolean     TRUE

SQL>

4. Configure DG Broker

On Primary

[oracle@rac1 ~]$ dgmgrl
DGMGRL for Linux: Release 12.2.0.1.0 - Production on Thu May 16 18:25:13 2019

Copyright (c) 1982, 2017, Oracle and/or its affiliates.  All rights reserved.

Welcome to DGMGRL, type "help" for information.
DGMGRL> connect /
Connected to "DELL"
Connected as SYSDG.
DGMGRL> create configuration 'DELL' as primary database is 'DELL' connect identifier is DELL;
Configuration "DELL" created with primary database "DELL"
DGMGRL>
DGMGRL> add database 'DELL_DG' as connect identifier is DELL_DG maintained as physical;
Database "DELL_DG" added
DGMGRL>
DGMGRL> show configuration;

Configuration - DELL

  Protection Mode: MaxPerformance
  Members:
  DELL    - Primary database
    DELL_DG - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:
DISABLED

DGMGRL>

5. Enbale LOG_ARCHIVE_DEST_2

On Primary

SQL> ALTER SYSTEM SET LOG_ARCHIVE_CONFIG='DG_CONFIG=(DELL,DELL_DG)' scope=both;

System altered.

SQL>

SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='SERVICE=DELL_DG LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=DELL_DG' scope=both;

System altered.

SQL>

On Standby

SQL> ALTER SYSTEM SET LOG_ARCHIVE_CONFIG='DG_CONFIG=(DELL,DELL_DG)' scope=both;

System altered.

SQL>


SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='SERVICE=DELL LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=DELL' scope=both;

System altered.

SQL>

6. Enable DG Broker Configuration

DGMGRL> enable configuration;
Enabled.
DGMGRL>

DGMGRL> show configuration;

Configuration - DELL

  Protection Mode: MaxPerformance
  Members:
  DELL    - Primary database
    DELL_DG - Physical standby database (disabled)

Fast-Start Failover: DISABLED

Configuration Status:
SUCCESS   (status updated 11 seconds ago)  <----

DGMGRL>
Useful commands:
DGMGRL> show database "DELL" InconsistentProperties
INCONSISTENT PROPERTIES
   INSTANCE_NAME        PROPERTY_NAME         MEMORY_VALUE         SPFILE_VALUE         BROKER_VALUE

DGMGRL> show database "DELL_DG" statusreport
STATUS REPORT
       INSTANCE_NAME   SEVERITY ERROR_TEXT

DGMGRL>

Recommendation:

Please DON’T create password file on standby. Please copy from 12c primary to 12c standby server.

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Thank you,
Rajasekhar Amudala
Email: br8dba@gmail.com
WhatsApp : +65-94693551
Linkedin: https://www.linkedin.com/in/rajasekhar-amudala/

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