Maaz Anjum's Blog: October 2013

Wednesday, October 30, 2013

SRVCTL: Add Preferred Instances

Dedicated to an old friend and colleague.

1. Add the service. Please take note, the instance names are in UPPER case.

[oowner@gxtbdb01 ~]$ srvctl status service -d utldb

[oowner@gxtbdb01 ~]$ srvctl add service -d utldb -s test -r UTLDB1

2. Start it

[oowner@gxtbdb01 ~]$ srvctl status service -d utldb

Service test is not running.

[oowner@gxtbdb01 ~]$ srvctl start service -d utldb -s test

[oowner@gxtbdb01 ~]$ srvctl status service -d utldb

Service test is running on instance(s) UTLDB1

3. Modify it to add a new instance to the preferred list

[oowner@gxtbdb01 ~]$ srvctl modify service -d utldb -s test -n -i UTLDB1,UTLDB2

[oowner@gxtbdb01 ~]$ srvctl status service -d utldb

Service test is running on instance(s) UTLDB1

4. Service has to be restarted for the changes to take into effect

[oowner@gxtbdb01 ~]$ srvctl stop service -d utldb -s test

[oowner@gxtbdb01 ~]$ srvctl start service -d utldb -s test

[oowner@gxtbdb01 ~]$ srvctl status service -d utldb

Service test is running on instance(s) UTLDB1,UTLDB2

Cheers!

continue reading "SRVCTL: Add Preferred Instances"

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Sunday, October 20, 2013

Oracle Golden Gate 12.1.2

I've only just caught up on the new OGG release news! Stepping through just the documentation, I'm excited about trying it out in the next few weeks.

Edited December 19, 2013: It took me a while to get around it, but I did write a post on installation/upgrade to this version here.

NewImage

http://docs.oracle.com/goldengate/1212/gg-winux/index.html

Cheers!

continue reading "Oracle Golden Gate 12.1.2"

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Tuesday, October 15, 2013

How to Resume an RMAN Duplicate on Failure - Just Re-Run it!

If you find yourself at the with an error message like below during an RMAN Duplicate, don’t worry about it. As I found out from dumb luck, it’s quite easy!

RMAN-03002: failure of recover command at 10/07/2013 15:11:47
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 53302 and starting SCN of 143193979270

The requirement was to clone production, without causing additional load on it, to a new environment that I would use for Golden Gate replication.

Database: 11.1.0.7.0 64bit

Server: Solaris 5.10 x86 64bit

Backup Location: Data Domain

Let me show the duplicate script first:

RUN
{
        ALLOCATE auxiliary CHANNEL CH01 TYPE 'SBT_TAPE' parms "ENV=(NB_ORA_POLICY=ORACLE_RAC01_PRD1_FULL,NB_ORA_CLIENT=RAC01,NB_ORA_SCHED=Default-Application-Backup)";
        ALLOCATE auxiliary CHANNEL CH02 TYPE 'SBT_TAPE' parms "ENV=(NB_ORA_POLICY=ORACLE_RAC01_PRD1_FULL,NB_ORA_CLIENT=RAC01,NB_ORA_SCHED=Default-Application-Backup)";
        ALLOCATE auxiliary CHANNEL CH03 TYPE 'SBT_TAPE' parms "ENV=(NB_ORA_POLICY=ORACLE_RAC01_PRD1_FULL,NB_ORA_CLIENT=RAC01,NB_ORA_SCHED=Default-Application-Backup)";
        ALLOCATE auxiliary CHANNEL CH04 TYPE 'SBT_TAPE' parms "ENV=(NB_ORA_POLICY=ORACLE_RAC01_PRD1_FULL,NB_ORA_CLIENT=RAC01,NB_ORA_SCHED=Default-Application-Backup)";
        ALLOCATE auxiliary CHANNEL CH05 TYPE 'SBT_TAPE' parms "ENV=(NB_ORA_POLICY=ORACLE_RAC01_PRD1_FULL,NB_ORA_CLIENT=RAC01,NB_ORA_SCHED=Default-Application-Backup)";
        ALLOCATE auxiliary CHANNEL CH06 TYPE 'SBT_TAPE' parms "ENV=(NB_ORA_POLICY=ORACLE_RAC01_PRD1_FULL,NB_ORA_CLIENT=RAC01,NB_ORA_SCHED=Default-Application-Backup)";

        SET NEWNAME FOR DATAFILE 54 TO '/u03/oradata/RPTPRD/data_01.365.668441285';
        SET NEWNAME FOR DATAFILE 54 TO '/u03/oradata/RPTPRD/data_01.365.668441285';
        . . .
        . . .
        SET NEWNAME FOR DATAFILE 54 TO '/u03/oradata/RPTPRD/data_01.365.668441285';

        DUPLICATE TARGET DATABASE TO RPTPRD
                UNTIL SCN 143197743846
                LOGFILE GROUP 1 ('/r01/oradata/RPTPRD/redo01a.log',
                                '/r02/oradata/RPTPRD/redo01b.log') SIZE 500M REUSE,
                        GROUP 2 ('/r01/oradata/RPTPRD/redo02a.log',
                                '/r02/oradata/RPTPRD/redo02b.log') SIZE 500M REUSE,
                        GROUP 3 ('/r01/oradata/RPTPRD/redo03a.log',
                                '/r02/oradata/RPTPRD/redo03b.log') SIZE 500M REUSE
                NOFILENAMECHECK
                SPFILE
                PARAMETER_VALUE_CONVERT 'PRD','RPTPRD'
                SET CONTROL_FILES='/u01/oradata/RPTPRD/control01.ctl','/u02/oradata/RPTPRD/control02.ctl','/u03/oradata/RPTPRD/control03.ctl'
                SET DB_CREATE_FILE_DEST='/u03/oradata/RPTPRD'
                SET AUDIT_FILE_DEST='/u01/app/oracle/admin/RPTPRD/adump'
                SET DB_RECOVERY_FILE_DEST='/a01/flash_recovery_area'
                set DIAGNOSTIC_DEST='/u01/app/oracle/'
                SET DB_RECOVERY_FILE_DEST_SIZE='20G'
                SET local_listener='(address=(protocol=TCP)(host=apvmrdb01)(port=1529))'
                SET FAL_CLIENT=''
                SET FAL_SERVER=''
                SET log_archive_dest_2=''
                SET dg_broker_start='FALSE'
                SET CLUSTER_DATABASE='FALSE'
                SET log_archive_dest_1='LOCATION=/a01/flash_recovery_area'
                SET db_create_online_log_dest_2='/r02/oradata/RPTPRD'
                SET db_create_online_log_dest_1='/r01/oradata/RPTPRD'
                SET standby_archive_dest='';
}

The actual run error is below.

Starting recover at 07-OCT-13

starting media recovery

unable to find archived log
archived log thread=1 sequence=53302
Oracle Error:
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/u03/oradata/RPTPRD/system.326.665261191'

released channel: CH01
released channel: CH02
released channel: CH03
released channel: CH04
released channel: CH05
released channel: CH06
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 10/07/2013 15:11:47
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 53302 and starting SCN of 143193979270

I knew that Data Domain had the backups, so it couldn’t be a case of missing pieces. By the way, the failure actually happened because my log_archive_dest_1 parameter was set to a location that didn’t exist on my auxiliary server.

So what now? I thought maybe I should drop the database and start from scratch. But, curiosity sometimes works in my favor. I simply restarted the script and bingo! It worked!!

Relevant excerpt from duplicate log:

contents of Memory Script:
{
   set until scn  143197743846;
   recover
   clone database
    delete archivelog
   ;
}
executing Memory Script

executing command: SET until clause

Starting recover at 07-OCT-13

starting media recovery

channel CH01: starting archived log restore to default destination
channel CH01: restoring archived log
archived log thread=1 sequence=53302
channel CH01: reading from backup piece al_180608_1_828139086
channel CH02: starting archived log restore to default destination
channel CH02: restoring archived log
archived log thread=2 sequence=46813
channel CH02: restoring archived log
archived log thread=1 sequence=53303
channel CH02: reading from backup piece al_180607_1_828139086
channel CH03: starting archived log restore to default destination
channel CH03: restoring archived log
archived log thread=2 sequence=46814
channel CH03: restoring archived log
archived log thread=2 sequence=46815
channel CH03: reading from backup piece al_180609_1_828139086
channel CH04: starting archived log restore to default destination
channel CH04: restoring archived log
archived log thread=1 sequence=53304
channel CH04: reading from backup piece al_180612_1_828145845
channel CH05: starting archived log restore to default destination
channel CH05: restoring archived log
archived log thread=2 sequence=46816
channel CH05: reading from backup piece al_180611_1_828145845
channel CH06: starting archived log restore to default destination
channel CH06: restoring archived log
archived log thread=1 sequence=53305
channel CH06: reading from backup piece al_180614_1_828153049
channel CH01: piece handle=al_180608_1_828139086 tag=TAG20131006T223805
channel CH01: restored backup piece 1
channel CH01: restore complete, elapsed time: 00:00:25
archived log file name=/a01/flash_recovery_area/1_53302_663959504.dbf thread=1 sequence=53302
channel CH01: starting archived log restore to default destination
channel CH01: restoring archived log
archived log thread=2 sequence=46817
channel CH01: reading from backup piece al_180616_1_828153049
channel CH03: piece handle=al_180609_1_828139086 tag=TAG20131006T223805
channel CH03: restored backup piece 1
channel CH03: restore complete, elapsed time: 00:00:25
channel CH02: piece handle=al_180607_1_828139086 tag=TAG20131006T223805
channel CH02: restored backup piece 1
channel CH02: restore complete, elapsed time: 00:00:40
archived log file name=/a01/flash_recovery_area/2_46813_663959504.dbf thread=2 sequence=0
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/2_46813_663959504.dbf RECID=7 STAMP=828199660
archived log file name=/a01/flash_recovery_area/2_46814_663959504.dbf thread=2 sequence=46814
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/2_46814_663959504.dbf RECID=4 STAMP=828199644
archived log file name=/a01/flash_recovery_area/2_46815_663959504.dbf thread=2 sequence=46815
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/1_53302_663959504.dbf RECID=3 STAMP=828199644
archived log file name=/a01/flash_recovery_area/1_53303_663959504.dbf thread=1 sequence=53303
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/1_53303_663959504.dbf RECID=2 STAMP=828199643
channel CH04: piece handle=al_180612_1_828145845 tag=TAG20131007T003044
channel CH04: restored backup piece 1
channel CH04: restore complete, elapsed time: 00:01:00
archived log file name=/a01/flash_recovery_area/1_53304_663959504.dbf thread=1 sequence=53304
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/2_46815_663959504.dbf RECID=1 STAMP=828199642
channel CH05: piece handle=al_180611_1_828145845 tag=TAG20131007T003044
channel CH05: restored backup piece 1
channel CH05: restore complete, elapsed time: 00:01:00
archived log file name=/a01/flash_recovery_area/2_46816_663959504.dbf thread=2 sequence=46816
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/1_53304_663959504.dbf RECID=5 STAMP=828199657
channel CH01: piece handle=al_180616_1_828153049 tag=TAG20131007T023048
channel CH01: restored backup piece 1
channel CH01: restore complete, elapsed time: 00:01:03
channel CH06: piece handle=al_180614_1_828153049 tag=TAG20131007T023048
channel CH06: restored backup piece 1
channel CH06: restore complete, elapsed time: 00:01:28
archived log file name=/a01/flash_recovery_area/1_53305_663959504.dbf thread=1 sequence=53305
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/2_46816_663959504.dbf RECID=6 STAMP=828199659
archived log file name=/a01/flash_recovery_area/2_46817_663959504.dbf thread=2 sequence=46817
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/1_53305_663959504.dbf RECID=8 STAMP=828199666
channel clone_default: deleting archived log(s)
archived log file name=/a01/flash_recovery_area/2_46817_663959504.dbf RECID=9 STAMP=828199670
media recovery complete, elapsed time: 00:00:08
Finished recover at 07-OCT-13

I’m a big fan of crediting others work, after I a re-ran the duplicate command, I google’d for “resume rman duplicate” and found April C. Sim’s blog on it!

Hope this helps.

Cheers!

continue reading "How to Resume an RMAN Duplicate on Failure - Just Re-Run it!"

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Categories

Wednesday, October 30, 2013

SRVCTL: Add Preferred Instances

Sunday, October 20, 2013

Oracle Golden Gate 12.1.2

Tuesday, October 15, 2013

How to Resume an RMAN Duplicate on Failure - Just Re-Run it!