Steps to rollback when Logical Standby Database creation fails
Hi,
In case while creating a logical standby database it fails. What steps should be done on primary to rollback the earlier steps. Because while creating logical standby we do certain tasks on primary e.g.
1) create supplemental logging.
2) update init file.
Regards,
Tushar
Hi,
Thanks for the mail. Should I drop the supplemental logging using
"Alter database DROP Supplemental Log data;".
or if we need to disable, how can we do so?
Rest is ok. Anyways I would not be using force logging.
Droping of additional tablespace created to keep logminer tables on primary.
Removing of log_archive_dest_2 information from primary init.
I think the above should do.
Regards,
Tushar
Similar Messages
-
Error when logical standby database
Hii all,
First time i am creating logical standby database on oracle 10gR2 by oracle doc.
but When i try to create logical standby database it give error
DG 2011-07-11-09:44:24 0 2 755997031 Operation CTL_GET_STATUS cancelled during phase 2, error = ORA-16797
DG 2011-07-11-09:44:24 0 2 755997031 Operation CTL_GET_STATUS cancelled during phase 2, error = ORA-16797
DG 2011-07-11-09:45:24 0 2 0 RSM0: HEALTH CHECK ERROR: ORA-16797: database is not using a server parameter file.
when i try to create spfile from pfile it give error.
ORA-01078 failure in processing initialization parameters.
LRM-00123 invalid character number found in the input file.
Please help
Vaibhav Dixit.Vaibhav Dixit wrote:
stan.__db_cache_size=432013312
stan.__java_pool_size=4194304
stan.__large_pool_size=8388608
stan.__shared_pool_size=163577856
stan.__streams_pool_size=0
*.audit_file_dest='D:\oracle\product\10.2.0/admin/stan/adump'
*.background_dump_dest='D:\oracle\product\10.2.0/admin/stan/bdump'
*.compatible='10.2.0.1.0'
*.control_files='D:\oracle\product\10.2.0/oradata/stan/stan05.ctl'
*.core_dump_dest='D:\oracle\product\10.2.0/admin/stan/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='stan'
*.DB_UNIQUE_NAME='stan'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(prim,stan)'
*.DB_FILE_NAME_CONVERT='D:\oracle\product\10.2.0\oradata\prim\','D:\oracle\product\10.2.0\oradata\stan\'
*.LOG_FILE_NAME_CONVERT= ’D:\oracle\product\10.2.0\oradata\prim\’,’D:\oracle\product\10.2.0\oradata\stan\’,'D:\oracle\product\10.2.0\flash_recovery_area\prim\ONLINELOG','D:\oracle\product\10.2.0\flash_recovery_area\stan\ONLINELOG'
*.LOG_ARCHIVE_FORMAT='%t_%s_%r.arc'
*.LOG_ARCHIVE_DEST_1= 'LOCATION=D:\oracle\product\10.2.0\flash_recovery_area\stan\ VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=stan'
*.LOG_ARCHIVE_DEST_2= 'SERVICE=prim LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=prim'
*.LOG_ARCHIVE_DEST_3= 'LOCATION=D:\oracle\product\10.2.0\flash_recovery_area\STAN2\ VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=stan'
*.LOG_ARCHIVE_DEST_STATE_1='ENABLE'
*.LOG_ARCHIVE_DEST_STATE_2='ENABLE'
*.LOG_ARCHIVE_DEST_STATE_3='ENABLE'
*.REMOTE_LOGIN_PASSWORDFILE='EXCLUSIVE'
*.LOG_ARCHIVE_MAX_PROCESSES=30
*.STANDBY_FILE_MANAGEMENT='AUTO'
*.FAL_SERVER='prim'
*.FAL_CLIENT='stan'
*.db_recovery_file_dest_size=9390363648
*.dispatchers='(protocol=TCP)'
*.job_queue_processes=10
*.nls_territory='INDIA'
*.open_cursors=300
*.pga_aggregate_target=202375168
*.processes=150
*.sga_target=609222656
*.shared_servers=1
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='D:\oracle\product\10.2.0/admin/stan/udump'
*.undo_retention=3600
*.dg_broker_start='TRUE'from
'D:\oracle\product\10.2.0/admin/stan/udump'
please change or replace the forward slash with backward slash in all file locations
to
eg:- 'D:\oracle\product\10.2.0\admin\stan\udump'
and create a spfile from pfile. -
Steps on Creating a Logical Standby Database
Hi,
I want to create a Logical Standby Database using 9.2.0.6. Anybody having steps of creating the same?
Regards,
TusharA good start from here
http://download-uk.oracle.com/docs/cd/A97630_01/server.920/a96653/createls.htm
Cheers
http://fiedizheng.blogspot.com/ -
Creation of Logical Standby Database Using RMAN ACTIVE DATABASE COMMAND
Hi All,
I am in confusion how to create logical standby database from primary database using rman active database command.
What i did:-
Create primary database on machine 1 on RHEL 5 with Oracle 11gR2
Create standby database on machine 2 on RHEL 5 With Oracle 11gR2 from primary using RMAN active database command
Trying to create logical standby database on machine 3 on RHEL 5 with Oracle 11gR2 using RMAN active database command from primary.
The point which confuse me is to start the logical standby in nomount mode on machine 3 with which pfile like i create the pfile for standby database do i need to create the pfile for logical standby db.
I done the creation of logical standby database by converting physical standby to logical standby database
I am following the below mentioned doc for the same:
Creating a physical and a logical standby database in a DR environment | Chen Guang's Blog
Kindly guide me how to work over the same or please provide me the steps of the same.
Thanks in advance.Thanks for your reply
I already started the logical standby database with pfile in nomount mode. And successfully completed the duplication of database. by mentioning the DB_FILE_NAME_CONVERT and LOG_FILE_NAME_CONVERT parameter.
But i am not able to receive the logs on the above mentioned blog i run the sql command to check the logs but getting "no rows selected"
My primary database pfile is:
pc01prmy.__db_cache_size=83886080
pc01prmy.__java_pool_size=12582912
pc01prmy.__large_pool_size=4194304
pc01prmy.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
pc01prmy.__pga_aggregate_target=79691776
pc01prmy.__sga_target=239075328
pc01prmy.__shared_io_pool_size=0
pc01prmy.__shared_pool_size=134217728
pc01prmy.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/pc01prmy/adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='/u01/app/oracle/oradata/PC01PRMY/controlfile/o1_mf_91g3mdtr_.ctl','/u01/app/oracle/flash_recovery_area/PC01PRMY/controlfile/o1_mf_91g3mf6v_.ctl'
*.db_block_size=8192
*.db_create_file_dest='/u01/app/oracle/oradata'
*.db_domain=''
*.db_file_name_convert='/u01/app/oracle/oradata/PC01SBY/datafile','/u01/app/oracle/oradata/PC01PRMY/datafile'
*.db_name='pc01prmy'
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=pc01prmyXDB)'
*.fal_client='PC01PRMY'
*.fal_server='PC01SBY'
*.log_archive_config='DG_CONFIG=(pc01prmy,pc01sby,pc01ls)'
*.log_archive_dest_1='LOCATION=/u01/app/oracle/flash_recovery_area/PC01PRMY/ VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=pc01prmy'
*.log_archive_dest_2='SERVICE=pc01sby LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=pc01sby'
*.log_archive_dest_3='SERVICE=pc01ls LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES, PRIMARY_ROLE) DB_UNIQUE_NAME=pc01ls'
*.log_archive_dest_state_1='ENABLE'
*.log_archive_dest_state_2='DEFER'
*.log_archive_dest_state_3='DEFER'
*.log_archive_max_processes=30
*.log_file_name_convert='/u01/app/oracle/oradata/PC01SBY/onlinelog','/u01/app/oracle/oradata/PC01PRMY/onlinelog'
*.open_cursors=300
*.pga_aggregate_target=78643200
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=236978176
*.undo_tablespace='UNDOTBS1'
My logical standby pfile is:-
pc01ls.__db_cache_size=92274688
pc01ls.__java_pool_size=12582912
pc01ls.__large_pool_size=4194304
pc01ls.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
pc01ls.__pga_aggregate_target=79691776
pc01ls.__sga_target=239075328
pc01ls.__shared_io_pool_size=0
pc01ls.__shared_pool_size=125829120
pc01ls.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/pc01ls/adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='/u01/app/oracle/oradata/PC01LS/controlfile/o1_mf_91g3mdtr_.ctl','/u01/app/oracle/flash_recovery_area/PC01LS/controlfile/o1_mf_91g3mf6v_.ctl'
*.db_block_size=8192
*.db_create_file_dest='/u01/app/oracle/oradata'
*.db_domain=''
*.db_file_name_convert='/u01/app/oracle/oradata/PC01SBY/datafile','/u01/app/oracle/oradata/PC01PRMY/datafile'
*.db_name='pc01prmy'
*.db_unique_name='pc01ls'
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=pc01prmyXDB)'
*.log_archive_config='DG_CONFIG=(pc01prmy,pc01sby,pc01ls)'
*.log_archive_dest_1='LOCATION=/u01/app/oracle/flash_recovery_area/PC01PRMY/ VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=pc01prmy'
*.log_archive_dest_2='LOCATION=/u01/app/oracle/flash_recovery_area/PC01LS/ VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=pc01ls'
*.log_archive_dest_3='SERVICE=pc01ls LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES, PRIMARY_ROLE) DB_UNIQUE_NAME=pc01ls'
*.log_archive_dest_state_1='ENABLE'
*.log_archive_dest_state_2='ENABLE'
*.log_archive_max_processes=30
*.log_file_name_convert='/u01/app/oracle/oradata/PC01SBY/onlinelog','/u01/app/oracle/oradata/PC01PRMY/onlinelog'
*.open_cursors=300
*.pga_aggregate_target=78643200
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=236978176
*.undo_tablespace='UNDOTBS1'
Kindly advice over the same -
How to convert logical standby database to Physical Standby Database
Hi,
Does anyone know how to convert logical standby database(10.2.0.3) to Physical Standby Database(10.2.0.3)? Is this possible? If so,please give me steps for it.
Thanks.
Regards,
RJ.I don't believe this to be possible. One of the steps invloved in the creation of a logical standby is the following:
ALTER DATABASE OPEN RESETLOGS;
This makes the logical standby a different incarnation of the db from the primary.
A physical standby is a binary copy of a primary db, a logical standby is a completely seperate db that just happens to get sql statements applied to it that are generated from a primary db, but is open read/write.
One avenue, though would be if you had flashback database enabled and you flashed back all the way to when the db was a physical standby and then rolled forward with the archived redo logs.
It's somewhat unlikely you are in that situation, but that is a possibility.
Indeed the 11g snapshot standby does this sort of thing:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28294/manage_ps.htm#sthref740
jason.
http://jarneil.wordpress.com -
Creating a new schema in a Logical Standby Database
Hi All,
I am experimenting with logical standby databases for the purpose of reporting, and have not been able to create a new schema in the logical standby database - one of the key features of logical standbys.
I have setup primary and logical standby databases, and they seem to be running just fine - changes are moved from the primary to the standby and queries on the standby seem to run ok.
However, If I try to create a new schema on the logical standby, that does not exist on the primary, I get "ORA-01031: insufficient privileges" errors when I try to create new objects.
Show below are the steps I have taken to create the new schema on the logical standby. Any help would be greatly appreciated.
SYS@UATDR> connect / as sysdba
Connected.
SYS@UATDR>
SYS@UATDR> select name, log_mode, database_role, guard_status, force_logging, flashback_on, db_unique_name
2 from v$database
3 /
NAME LOG_MODE DATABASE_ROLE GUARD_S FOR FLASHBACK_ON DB_UNIQUE_NAME
UATDR ARCHIVELOG LOGICAL STANDBY ALL YES YES UATDR
SYS@UATDR>
SYS@UATDR> create tablespace ts_new
2 /
Tablespace created.
SYS@UATDR>
SYS@UATDR> create user new
2 identified by new
3 default tablespace ts_new
4 temporary tablespace temp
5 quota unlimited on ts_new
6 /
User created.
SYS@UATDR>
SYS@UATDR> grant connect, resource to new
2 /
Grant succeeded.
SYS@UATDR> grant unlimited tablespace, create table, create any table to new
2 /
Grant succeeded.
SYS@UATDR>
SYS@UATDR> -- show privs given to new
SYS@UATDR> select * from dba_sys_privs where grantee='NEW'
2 /
GRANTEE PRIVILEGE ADM
NEW CREATE ANY TABLE NO
NEW CREATE TABLE NO
NEW UNLIMITED TABLESPACE NO
SYS@UATDR>
SYS@UATDR> -- create objects in schema
SYS@UATDR> connect new/new
Connected.
NEW@UATDR>
NEW@UATDR> -- prove ability to create tables
NEW@UATDR> create table new
2 (col1 number not null)
3 tablespace ts_new
4 /
create table new
ERROR at line 1:
ORA-01031: insufficient privileges
NEW@UATDR>
NEW@UATDR>HI Daniel,
I appreciate your quick response.
My choice of name may not have been ideal, however changing new to another name - like gav - does not solve the problem.
SYS@UATDR> connect / as sysdba
Connected.
SYS@UATDR>
SYS@UATDR> select name, log_mode, database_role, guard_status, force_logging, flashback_on, db_unique_name
2 from v$database
3 /
NAME LOG_MODE DATABASE_ROLE GUARD_S FOR FLASHBACK_ON DB_UNIQUE_NAME
UATDR ARCHIVELOG LOGICAL STANDBY ALL YES YES UATDR
SYS@UATDR>
SYS@UATDR> create tablespace ts_gav
2 /
Tablespace created.
SYS@UATDR>
SYS@UATDR> create user gav
2 identified by gav
3 default tablespace ts_gav
4 temporary tablespace temp
5 quota unlimited on ts_gav
6 /
User created.
SYS@UATDR>
SYS@UATDR> grant connect, resource to gav
2 /
Grant succeeded.
SYS@UATDR> grant unlimited tablespace, create table, create any table to gav
2 /
Grant succeeded.
SYS@UATDR>
SYS@UATDR> -- show privs given to gav
SYS@UATDR> select * from dba_sys_privs where grantee='GAV'
2 /
GRANTEE PRIVILEGE ADM
GAV CREATE TABLE NO
GAV CREATE ANY TABLE NO
GAV UNLIMITED TABLESPACE NO
SYS@UATDR>
SYS@UATDR> -- create objects in schema
SYS@UATDR> connect gav/gav
Connected.
GAV@UATDR>
GAV@UATDR> -- prove ability to create tables
GAV@UATDR> create table gav
2 (col1 number not null)
3 tablespace ts_gav
4 /
create table gav
ERROR at line 1:
ORA-01031: insufficient privileges
GAV@UATDR> -
MV Logs not getting purged in a Logical Standby Database
We are trying to replicate a few tables in a logical standby database to another database. Both the source ( The Logical Standby) and the target database are in Oracle 11g R1.
The materialized views are refreshed using FAST REFRESH.
The Materialized View Logs created on the source ( the Logical Standby Database) are not getting purged when the MV in the target database is refreshed.
We checked the entries in the following Tables: SYS.SNAP$, SYS.SLOG$, SYS.MLOG$
When a materialized view is created on the target database, a record is not inserted into the SYS.SLOG$ table and it seems like that's why the MV Logs are not getting purged.
Why are we using a Logical Standby Database instead of the Primary ? Because, the load on the Primary Database is too much and the machine doesn't have enough resources to support MV based replication. The CPU usage is 95% all the time. The appplication owner won't allow us to go against the Primary database.
Do we have to do anything different in terms of Configuration/Privileges etc. because we are using a Logical Standby Database as a source ?
Thanks in Advance.We have a 11g RAC database in solaris OS where there is huge gap in archive log apply.
Thread Last Sequence Received Last Sequence Applied Difference
1 132581 129916 2665
2 108253 106229 2024
3 107452 104975 2477
The MRP0 process seems not to be working also.Almost 7000+ archives lag in standby if compared with primary database.
i suggest you to go with Incremental rollforward backups to make it SYNC, use this below link for step by step procedure.
http://www.oracle-ckpt.com/rman-incremental-backups-to-roll-forward-a-physical-standby-database-2/
Here questions.
1) Whether those archives are transported & just not applied?
2) Is in production do you have archives or backup of archives?
3) What you have found errors in alert log file?
post
SQL> select severity,message,error_code,timestamp from v$dataguard_status where dest_id=2;
4) What errors in primary database alert log file?
Also post
select ds.dest_id id
, ad.status
, ds.database_mode db_mode
, ad.archiver type
, ds.recovery_mode
, ds.protection_mode
, ds.standby_logfile_count "SRLs"
, ds.standby_logfile_active active
, ds.archived_seq#
from v$archive_dest_status ds
, v$archive_dest ad
where ds.dest_id = ad.dest_id
and ad.status != 'INACTIVE'
order by
ds.dest_id
/Also check errors from standby database. -
How to apply the changes in logical standby database
Hi,
I am new to Dataguard. I am now using 10.2.0.3 and followed the steps from Oracle Data Guard Concepts and Administration Guide to setup a logical standby database.
When I insert a record to a table from the primary database side, when i query the same table from the logical standby database, it doesn't show the new records.
Did I miss something? What I want to do is when I insert a record in the primary db, then the corresponding record will be inserted in the standby db.
Or I totally misunderstand what Oracle data guard is? Any help are appreciated.
DenisHi
Can anyone help to answer me is my logical standby db have a archive gap?
SQL> SELECT APPLIED_SCN, APPLIED_TIME, READ_SCN, READ_TIME, NEWEST_SCN, NEWEST_T
IME FROM DBA_LOGSTDBY_PROGRESS;
APPLIED_SCN APPLIED_TIME READ_SCN READ_TIME NEWEST_SCN
NEWEST_TIME
851821 29-JUL -08 17:58:29 851822 29-JUL -08 17:58:29 1551238
08-AUG -08 08:43:29
SQL> select pid, type, status, high_scn from v$logstdby;
no rows selected
SQL> alter database start logical standby apply;
Database altered.
SQL> select pid, type, status, high_scn from v$logstdby;
PID
TYPE
STATUS HIGH_SCN
2472
COORDINATOR
ORA-16116: no work available
3380
READER
ORA-16127: stalled waiting for additiona 852063
l transactions to be applied
2480
BUILDER
ORA-16116: no work available
2492
ANALYZER
ORA-16111: log mining and apply setting
up
2496
APPLIER
ORA-16116: no work available
2500
APPLIER
ORA-16116: no work available
3700
APPLIER
ORA-16116: no work available
940
APPLIER
ORA-16116: no work available
2504
APPLIER
ORA-16116: no work available
9 rows selected.
Thanks a lot.
Message was edited by:
Denis Chan -
Add Datafile in Logical Standby Database
Hi,
I have add one datafile in our primary RAC DB. We had logical standby database with file management is equal to manual. Both the primary RAC and logical standby db have the different storage structure. When the archive applied on the logical standby database its throws the error " error in creating datafile 'path'";
Would appreciate if come to know the steps to add the datafile in this kind of environment. and how can i overcome from this problem now except skip transaction for that ddl.
Thanks in advance.
DewanWhen the archive applied on the logical standby database its throws the error " error in creating datafile 'path'";Can you post the error message with the number.
From Manual..
8.3.1.2 Adding a Tablespace and a Datafile When STANDBY_FILE_MANAGEMENT Is Set to MANUAL
The following example shows the steps required to add a new datafile to the primary and standby database when the STANDBY_FILE_MANAGEMENT initialization parameter is set to MANUAL. You must set the STANDBY_FILE_MANAGEMENT initialization parameter to MANUAL when the standby datafiles reside on raw devices.
Add a new tablespace to the primary database:
SQL> CREATE TABLESPACE new_ts DATAFILE '/disk1/oracle/oradata/payroll/t_db2.dbf'
2> SIZE 1m AUTOEXTEND ON MAXSIZE UNLIMITED;
Verify the new datafile was added to the primary database:
SQL> SELECT NAME FROM V$DATAFILE;
NAME
/disk1/oracle/oradata/payroll/t_db1.dbf
/disk1/oracle/oradata/payroll/t_db2.dbf
Perform the following steps to copy the tablespace to a remote standby location:
Place the new tablespace offline:
SQL> ALTER TABLESPACE new_ts OFFLINE;
Copy the new tablespace to a local temporary location using an operating system utility copy command. Copying the files to a temporary location will reduce the amount of time the tablespace must remain offline. The following example copies the tablespace using the UNIX cp command:
% cp /disk1/oracle/oradata/payroll/t_db2.dbf
/disk1/oracle/oradata/payroll/s2t_db2.dbf
Place the new tablespace back online:
SQL> ALTER TABLESPACE new_ts ONLINE;
Copy the local copy of the tablespace to a remote standby location using an operating system utility command. The following example uses the UNIX rcp command:
%rcp /disk1/oracle/oradata/payroll/s2t_db2.dbf standby_location
Archive the current online redo log file on the primary database so it will get transmitted to the standby database:
SQL> ALTER SYSTEM ARCHIVE LOG CURRENT;
Use the following query to make sure that Redo Apply is running. If the MRP or MRP0 process is returned, Redo Apply is being performed.
SQL> SELECT PROCESS, STATUS FROM V$MANAGED_STANDBY;
Verify the datafile was added to the standby database after the archived redo log file was applied to the standby database:
SQL> SELECT NAME FROM V$DATAFILE;
NAME
/disk1/oracle/oradata/payroll/s2t_db1.dbf
/disk1/oracle/oradata/payroll/s2t_db2.dbf -
Create an Object in Logical standby database in Oracle 10G
Hi,
I have logical standby database in oracle 10g R2 for reporting purpose.Now i want to create procedure in logical standby which is use to create new temp table in logical standby and contained data generated from select operation on existing table.
Can i create a new user in logical standby database,add new tablespace in logical standby which can insert,update and delete data in standby database base table?
kindly provide me the steps to implement all this.What will be effect if i set guard_Status in v$database is NONE in logical standby?
Thanks,
Shital PatelHi Shital,
Guard_status protects the data from being changed.
ALL- By default it is not possible for a non-privileged user to modify data on a data guard SQL apply database. This is because the database guard is automatically set to ALL.
With this level of security, only SYS user can modify the data.
STANDBY- When you set this level of security, users are able to modify data that is not maintained by the Logical apply engine.
NONE permits any users to access the standby database as long as they have correct privileges. This is the normal security for all data in the database.
You can change the guard status value from ALL to NONE in order to allow non-privileged users to modify data and Yes you can create user and extra tablespace in logical standby database..this is what the one of advantage of using Logical standby database.
SQL> ALTER DATABASE GUARD NONE;
Thanks -
RMAN script problem to create logical standby database !
Dear Friends ,
I am using Oracle10g database . I want to create a logical standby database . I create two database :
Primary : orcl
standby : orclsby1
Every steps I followed successfully , but when I am going to create "standby database" from "primary database" using rman then I found the following error :
The script is below which I have to run in Primary (orcl) database :
Script :
run {
allocate channel prmy1 type disk;
allocate channel prmy2 type disk;
allocate channel prmy3 type disk;
allocate channel prmy4 type disk;
allocate auxiliary channel stby type disk;
duplicate target database for standby from active database
spfile
parameter_value_convert 'orcl','orclsby1'
set db_unique_name='orclsby1'
set db_file_name_convert='/orcl/','/orclsby1/'
set log_file_name_convert='/orcl/','/orclsby1/'
set control_files='/u01/app/oracle/oradata/orclsby1.ctl'
set log_archive_max_processes='5'
set fal_client='orclsby1'
set fal_server='orcl'
set standby_file_management='AUTO'
set log_archive_config='dg_config=(orcl,orclsby1)'
set log_archive_dest_1='service=orcl ASYNC
valid_for=(ONLINE_LOGFILE,PRIMARY_ROLE) db_unique_name=orcl'
Problem which I got :
[oracle@localhost DG]$ rman target sys/sys123@orcl auxiliary sys/sys123@orclsby1
Recovery Manager: Release 10.2.0.1.0 - Production on Mon Oct 19 15:58:17 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: ORCL (DBID=1227832857)
connected to auxiliary database: ORCLSBY1 (not mounted)
RMAN> @cr_phys_sby1.txt
RMAN> run {
2> allocate channel prmy1 type disk;
3> allocate channel prmy2 type disk;
4> allocate channel prmy3 type disk;
5> allocate channel prmy4 type disk;
6> allocate auxiliary channel stby type disk;
7> duplicate target database for standby from
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00558: error encountered while parsing input commands
RMAN-01009: syntax error: found "from": expecting one of: "dorecover, db_file_name_convert, nofilenamecheck, ;"
RMAN-01007: at line 7 column 39 file: cr_phys_sby1.txt
I try to edit the above script using 'nofilenamecheck' 'dorecover' etc. , but cannot resolve the problem . Would u plz help me .... where the problem is .
Both databases are running on Oracle10g platform .
Waiting for ur kind reply .. ...You need to:
- create a SPFILE manually for standby database
- use the RMAN command: DUPLICATE TARGET DATABASE FOR STANDBY
- remove all SPFILE statements from RMAN script. -
Create table on Logical Standby Database
Dear DBAs,
here is my situation;
1. My primary database (where the tables' owner is "ICC" having a DBA) is used for insert/update transactions.
2. The logical stdby DB (dataguard structure with MAX availability) is used to generate reports, after updating some tables owned by the same user "ICC". note that these tables are excluded from the replication.
3. The developers might need to create this kind of tables to generate another kind of reports.
The issue is that when the standby apply is enabled or disabled, the user ICC is not able to create a new table, it gives ORA-01031: insufficient privileges. note that it's not practical to ask the DBA to disable the "APPLY" at any table creation.
Do you have an idea about how to resolve.
My database is 10gR2 path.10.2.0.4.0 on Windows 2003
Thank you in advanceIf you stop applying log on the logical standby you can easily create a table over there. See oracle docs. The following list shows >how to re-create a table and restart SQL Apply on that table:
>
Stop SQL Apply:
SQL> ALTER DATABASE STOP LOGICAL STANDBY APPLY;
Ensure no operations are being skipped for the table in question by querying the DBA_LOGSTDBY_SKIP view:
SQL> SELECT * FROM DBA_LOGSTDBY_SKIP;
ERROR STATEMENT_OPT OWNER NAME PROC
N SCHEMA_DDL HR EMPLOYEES
N DML HR EMPLOYEES
N SCHEMA_DDL OE TEST_ORDER
N DML OE TEST_ORDER
Because you already have skip rules associated with the table that you want to re-create on the logical standby >database, you must first delete those rules. You can accomplish that by calling the DBMS_LOGSTDBY.UNSKIP >procedure. For example:
SQL> EXECUTE DBMS_LOGSTDBY.UNSKIP(stmt => 'DML', -
schema_name => 'HR', - object_name => 'EMPLOYEES');SQL> EXECUTE DBMS_LOGSTDBY.UNSKIP(stmt >=> 'SCHEMA_DDL', -
schema_name => 'HR', - object_name => 'EMPLOYEES');
Re-create the table HR.EMPLOYEES with all its data in the logical standby database by using the >DBMS_LOGSTDBY.INSTANTIATE_TABLE procedure. For example:
SQL> EXECUTE DBMS_LOGSTDBY.INSTANTIATE_TABLE(shema_name => 'HR', -
object-_name => 'EMPLOYEES', -
dblink => 'BOSTON');
Start SQL Apply:
SQL> ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;Regards. -
ORA-01403: no data found on LOGICAL STANDBY database
Hi ,
Logical Standby issue :
Oracle 10.2.0.2 enterprise edition .
M Working on LOGICAL Standby since 1 yrs but still i havent got this ......................................
I m getting countinuously no data foud errror on logical standby database .
I found the table causing the proble(db_logstdby_events) and skipped that table and instanciated table using bwlow package:
exec dbms_logstdby.instantiate_table (.......................................
but when i start apply process on logical standby it again give no data found for new table :
Even i tried to instantiate the table using EXPORT/IMPORT during down time but the same facing same problem .
As much as i known abt the error that is :
table1
id
10
20
30
Now if sql apply process on logical standby tries to performe the update transaction(for example) as belows
update table1 set id=100 where id=50;
above query will not be completed cos it will never find the values 50 which is not in table .Thts why this error comming ..
Now my worry is ... no users dare to change/make such changes on Logical standby .So if there is no changes in tables then sqll apply should get all the values to be needded for an update ......
watingggg guyssss/......Troubleshooting ORA-1403 errors with Flashback Transaction
In the event that the SQL Apply engine errors out with an ORA-1403, it may be possible to utilize flashback transaction on the standby database to reconstruct the missing data. This is reliant upon the undo_retention parameter specified on the standby database instance.
ORA-1403: No Data Found
Under normal circumstances the ORA-1403 error should not be seen in a Logical Standby environment. The error occurs when data in a SQL Apply managed table is modified directly on the standby database, and then the same data is modified on the primary database.
When the modified data is updated on the primary database and received by the SQL Apply engine, the SQL Apply engine verifies the original version of the data is present on the standby database before updating the record. When this verification fails, an ORA-1403: No Data Found error is thrown by Oracle Data Guard: SQL Apply.
The initial error
When the SQL Apply engine verification fails, the error thrown by the SQL Apply engine is reported in the alert log of the logical standby database as well as a record being inserted into the DBA_LOGSTDBY_EVENTS view. The information in the alert log is truncated, while the error is reported in it's entirety in the database view.
LOGSTDBY stmt: update "SCOTT"."MASTER"
set
"NAME" = 'john'
where
"PK" = 1 and
"NAME" = 'andrew' and
ROWID = 'AAAAAAAAEAAAAAPAAA'
LOGSTDBY status: ORA-01403: no data found
LOGSTDBY PID 1006, oracle@staco03 (P004)
LOGSTDBY XID 0x0006.00e.00000417, Thread 1, RBA 0x02dd.00002221.10
The Investigation
The first step is to analyze the historical data of the table that threw the error. This can be achieved using the VERSIONS clause of the SELECT statement.
SQL> select versions_xid
, versions_startscn
, versions_endscn
, versions_operation
, pk
, name
from scott.master
versions between scn minvalue and maxvalue
where pk = 1
order by nvl(versions_startscn,0);
VERSIONS_XID VERSIONS_STARTSCN VERSIONS_ENDSCN V PK NAME
03001900EE070000 3492279 3492290 I 1 andrew
02000D00E4070000 3492290 D 1 andrew
Depending upon the amount of undo retention that the database is configured to retain (undo_retention) and the activity on the table, the information returned might be extensive and the versions between syntax might need to be changed to restrict the amount of information returned.
From the information returned, it can be seen that the record was first inserted at scn 3492279 and then was deleted at scn 3492290 as part of transaction ID 02000D00E4070000. Using the transaction ID, the database should be queried to find the scope of the transaction. This is achieved by querying the flashback_transaction_query view.
SQL> select operation
, undo_sql
from flashback_transaction_query
where xid = hextoraw('02000D00E4070000');
OPERATION UNDO_SQL
DELETE insert into "SCOTT"."MASTER"("PK","NAME") values
('1','andrew');
BEGIN
Note that there is always one row returned representing the start of the transaction. In this transaction, only one row was deleted in the master table. The undo_sql column when executed will restore the original data into the table.
SQL> insert into "SCOTT"."MASTER"("PK","NAME") values ('1','andrew');
SQL> commit;
The SQL Apply engine may now be restarted and the transaction will be applied to the standby database.
SQL> alter database start logical standby apply; -
How to run automated maintenance task on a logical standby database ?
Hi
I realize that i do not see any job runs for automated maintenance tasks on my logical standby database.
Which are the conditions that must be fulfilled for automated maintenance tasks to run?
Thanks
ChristophHi,
In an Oracle Data Guard environment, the Scheduler includes additional support for two database roles: primary and logical standby. You can configure a job to run only when the database is in the primary role or only when the database is in the logical standby role. To do so, you set the database_role attribute. This example explains how to enable a job to run in both database roles. The method used is to create two copies of the job and assign a different database_role attribute to each.
By default, a job runs when the database is in the role that it was in when the job was created. You can run the same job in both roles using the following steps:
Copy the job
Enable the new job
Change the database_role attribute of the new job to the required role
The example starts by creating a job called primary_job on the primary database. It then makes a copy of this job and sets its database_role attribute to 'LOGICAL STANDBY'. If the primary database then becomes a logical standby, the job continues to run according to its schedule.
More Information please cheek below link:
Examples of Using the Scheduler
Thank you -
Logical Standby Database in NOARCHIVE Mode
Hi,
I have configured a Logical Standby Database for Reporting purposes. A Physical Standby Database is running for MAA. i.e. in case of Role Transition (switch/Failover) the Physical Stdby Db will get the role of the Primary.
The logical standby database is creating a lot of Archive Redologs files, nearly every minute. Redolog files are 50MB and there is no work done in db during the time. I'm NOT using Standby Redolog files.
Is there a need for logical standby database to be in NOARCHIVELOG mode? The Primary is definatley in ARCHIVELOG mode.
Thanks for any responses.
regards
Sahbahi,
well there are two things to the above:-
1. there was an archive file nearly every minute:
this is due to a db recovery. for some reason, the db was in inconsistent state, after a sudden shutdownof the OS. I was on a test environment, on windows vista, unfortunately. unimportant ... a reboot solved it.
2. Logical standby db in NOARCHIVE MODE when setup for the purpose of Reporting.
As long as the MAA configured for the primary db, such as physical standby db, and a second, the logical standby db setup purely for the purpose of reporting, which then can run with NOARCHIVELOG mode, after converting the physical standby db to logical.
logical standby db uses Streams architecture, so this method brings cost, time and performance advantages to the customer.
regards
Sahba
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