Sunday, March 19, 2023

Data Guard Broker Configuration in 19c

Data Guard broker is a centralized framework to manage entire Data Guard configuration through a client connection to any database in the configuration

From Primary

  1. Enable Broker configuration parameters

    2. SQL> alter system set dg_broker_start=true;
    SQL> alter system set local_listener='(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.196.210.135)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = smsprod_bos03)))';

  2. Add entry for data guard broker on listener.ora

    3. [oracle@bo3upsmsxodb01 ~]$ vi $ORACLE_HOME/network/admin/listener.ora

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = bo3upsmsxodb01.pearsoncmg.com)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = smsprod_bos03_DG)
      (ORACLE_HOME = /data01/app/oracle/product/19.0.0/dbhome_1)
      (SID_NAME = smsprod)
    )
  )

  3. Reload listener to effective the changes

    4. [oracle@bo3upsmsxodb01 ~]$ lsnrctl reload

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 22-JAN-2023 04:28:17

Copyright (c) 1991, 2022, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=bo3upsmsxodb01.pearsoncmg.com)(PORT=1521)))
The command completed successfully

  4. Makesure service for dataguard has been initiated 

    5. [oracle@bo3upsmsxodb01 ~]$ lsnrctl status

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 22-JAN-2023 04:28:22

Copyright (c) 1991, 2022, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=bo3upsmsxodb01.pearsoncmg.com)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 19.0.0.0.0 - Production
Start Date                21-JAN-2023 06:55:52
Uptime                    0 days 21 hr. 32 min. 30 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /data01/app/oracle/product/19.0.0/dbhome_1/network/admin/listener.ora
Listener Log File         /data01/app/oracle/diag/tnslsnr/bo3upsmsxodb01/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=bo3upsmsxodb01.pearsoncmg.com)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary...
Service "smsprodXDB" has 1 instance(s).
  Instance "smsprod", status READY, has 1 handler(s) for this service...
Service "smsprod_bos03" has 1 instance(s).
  Instance "smsprod", status READY, has 1 handler(s) for this service...
Service "smsprod_bos03_DG" has 1 instance(s).
  Instance "smsprod", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

From Standby

  1. Enable Broker configuration parameters

    2. SQL> alter system set dg_broker_start=true;
    SQL> ALTER SYSTEM SET local_listener='(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.196.210.38)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = smsprod_stby)))';

  2. Add entry for data guard broker on listener.ora

    3. [oracle@bo3upsmsxdrs01 ahussmo]$ vi $ORACLE_HOME/network/admin/listener.ora

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = bo3upsmsxdrs01.pearsoncmg.com)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = smsprod_stby_DG)
      (ORACLE_HOME = /data01/app/oracle/product/19.0.0/dbhome_1)
      (SID_NAME = smsprod)
    )
  )

  3. Reload listener to effective the changes

    4. [oracle@bo3upsmsxdrs01 ahussmo]$ lsnrctl reload

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 22-JAN-2023 04:33:14

Copyright (c) 1991, 2022, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=bo3upsmsxdrs01.pearsoncmg.com)(PORT=1521)))
The command completed successfully

  4. Makesure service for dataguard has been initiated 

    5. [oracle@bo3upsmsxdrs01 ahussmo]$ lsnrctl status

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 22-JAN-2023 04:33:18

Copyright (c) 1991, 2022, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=bo3upsmsxdrs01.pearsoncmg.com)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 19.0.0.0.0 - Production
Start Date                20-JAN-2023 22:33:24
Uptime                    1 days 5 hr. 59 min. 54 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /data01/app/oracle/product/19.0.0/dbhome_1/network/admin/listener.ora
Listener Log File         /data01/app/oracle/diag/tnslsnr/bo3upsmsxdrs01/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=bo3upsmsxdrs01.pearsoncmg.com)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary...
Service "smsprod_stby" has 1 instance(s).
  Instance "smsprod", status READY, has 1 handler(s) for this service...
Service "smsprod_stby_DG" has 1 instance(s).
  Instance "smsprod", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
Enable Data guard configuration

  1. Login to data guard command line interface via sys user

    2. [oracle@bo3upsmsxodb01 ~]$ dgmgrl sys/f1Nal#cak3

  2. Create new configuration

    3. DGMGRL> create configuration 'smsprod_bos03_DG_config' as primary database is 'smsprod_bos03' connect identifier is smsprod;
Configuration "smsprod_bos03_DG_config" created with primary database "smsprod_bos03"

  3. Make sure primary configuration is available

    4. DGMGRL> show configuration;

Configuration - smsprod_bos03_DG_config

  Protection Mode: MaxPerformance
  Members:
  smsprod_bos03 - Primary database

Fast-Start Failover:  Disabled

Configuration Status:
DISABLED

  4. Reset 'LOG_ARCHIVE_DEST_n' to avoid 'ORA-16698' Errors

    5. [oracle@bo3upsmsxodb01 ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Jan 22 05:25:38 2023
Version 19.15.0.0.0

Copyright (c) 1982, 2022, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.15.0.0.0
    SQL> sho parameter log_archive_dest_2;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2                   string      SERVICE=smsprod_stby NOAFFIRM ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=smsprod_stby
    SQL> alter system set LOG_ARCHIVE_DEST_2='';

  5. Add standby database to dataguard broker

    6. DGMGRL> Add database 'smsprod_stby' as connect identifier is smsprod_stby;
Database "smsprod_stby" added

  6. Make sure both primary and standby configurations are available

    7. DGMGRL> show configuration;

Configuration - smsprod_bos03_DG_config

  Protection Mode: MaxPerformance
  Members:
  smsprod_bos03 - Primary database
    smsprod_stby  - Physical standby database 

Fast-Start Failover:  Disabled

Configuration Status:
DISABLED

  7. Reset 'LOG_ARCHIVE_DEST_n' to valid value

    8. [oracle@bo3upsmsxodb01 ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Jan 22 05:25:38 2023
Version 19.15.0.0.0

Copyright (c) 1982, 2022, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.15.0.0.0
    SQL> alter system set LOG_ARCHIVE_DEST_2='SERVICE=smsprod_stby NOAFFIRM ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=smsprod_stby';

    SQL> sho parameter log_archive_dest_2;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2                   string      SERVICE=smsprod_stby NOAFFIRM ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=smsprod_stby

  8. Enable configuration

    9. DGMGRL> enable configuration;

Enabled.

  9. Verify configuration status is 'SUCCESS'

    10. DGMGRL> show configuration

Configuration - smsprod_bos03_DG_config

  Protection Mode: MaxPerformance
  Members:
  smsprod_bos03 - Primary database
    smsprod_stby  - Physical standby database 

Fast-Start Failover:  Disabled

Configuration Status:
SUCCESS   (status updated 38 seconds ago)
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