Log Applying Service Is Taking More Time In Physical Standby?
Sep 19, 2013
My Database version as followsOracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64biPL/SQL Release 10.2.0.4.0 - ProductionCORE 10.2.0.4.0 ProductionTNS for Linux: Version 10.2.0.4.0 - ProductionNLSRTL Version 10.2.0.4.0 - Production We have datagaurd setup as well - Huge archive logs are generating in our primary database - Archive logs are shipping to standby with no dealy - But applying the archive logs are taking more in our physical standby database -why it was taking more time to apply archivlogs (sync) in standby ? - What could be possible reasons..? Note : Size of standby redo logs are same as redo log file of primary database - Also standby by redo one or more than online redo log primary. Since i need to report my higer leve stating this is cause for delay in applying archive logs.
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Sep 3, 2010
ORACLE VERSION: 11.2
ENVIRONMENT: physical standby database
MODE: maximum performance mode.
SQL> select * from v$archive_gap;
no rows selected
SQL> select sequence#, applied from v$archived_log where applied='NO';
SEQUENCE# APPLIED
---------- ---------
10929 NO
10930 NO
10931 NO
10932 NO
10933 NO
10934 NO
10935 NO
10936 NO
10937 NO
11073 NO
11074 NO
SEQUENCE# APPLIED
---------- ---------
11075 NO
11076 NO
11077 NO
11078 NO
11079 NO
11080 NO
11081 NO
11082 NO
11083 NO
11084 NO
11085 NO
SEQUENCE# APPLIED
---------- ---------
11086 NO
11087 NO
11088 NO
11089 NO
11091 NO
11092 NO
What would be the cause
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May 26, 2013
I have dataguard configuration operating in maximum availability mode with a local standby db (A - lgwr sync not using real time apply) and a remote standby db (B - lgwr async). I then simualted a crash of my primary database with batch jobs running. Since the stby db A is in lgwr sync option ,all the commited data in the current online redo log has been transmitted to stby A and is present in its stby redo log (Group 2).How do I apply this stby redo log to the remote stby db.
Tried the following methods.
1.ftp the stby redo log to the remote db and tried to regiter it, got an error that it is not completely archived.
2.issued the recover standby database command and supplied the stby redo log when it asked for the sequence in the stby redo, got an error saying there is corruption in a block(tried this option multiple times ended up with the same result.)
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Aug 30, 2013
My steps for testing as below:
1.create a primary database
2.duplicate a physical standby database;
3.turn on flashback on both databases.
4.record SCN xxx on physical standby database.
5.convert physical standby to logical standby (using keep identity statement)
6.flashback to logical standby to xxx
7.convert logical standby to physical standby
8.using real time apply I got errors: Fast Parallel Media Recovery enabledManaged Standby Recovery starting Real Time ApplyMRP0:
Background Media Recovery waiting for new incarnation during transient logical upgrade procedure
Errors in file /home ora/ app/ oracle/ diag/ rdbms/ ora11gr1dg/ora11gr1dg/trace/ora11gr1dg_mrp0_10120.trc:ORA-19906: recovery target incarnation changed during recoveryManaged Standby Recovery not using Real Time ApplyErrors in file /home/ ora/app/ oracle/diag/ rdbms/ ora11gr1dg/ ora11gr1dg/ trace/ora11gr 1dg_mrp0_ 10120.trc:ORA-19906: recovery target incarnation changed during recovery
Errors appears every 10 seconds. Seems MPR0 is waiting for new incarnation for a long time. So am I.Standby database incarnation:
List of Database IncarnationsDB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time-------1 1 ORA11GR1 3853851354 CURRENT 1 08/09/2013 01:02:182 2 ORA11GR1 3853851354 ORPHAN 2127877 08/28/2013 19:22:01 BGV
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Sep 5, 2013
We have a 11r2 primary and standby running on RHEL 5. The primary lost network connectivity for a time and VMWare locked up. The VM admin restarted the primary VM (it was a hard-boot). This all happened while I was gone and when I came into work, the primary database appeared to be working. I decided to dig deeper and check out the standby. On the standby...
SQL> select * from v$archive_gap;
Thread#: 1
low_sequence: 123120
high_sequence: 123120
[Code]...
It appears all is well (just very far behind) but when I run the last code block (show database prodDB2;) again ...
DGMGRL> show database prodDB2;
Role: PHYSICAL STANDBY
Intended State: APPLY-ON
Transport Lag: 2 days 1 hour(s) 42 minutes 37 seconds
Apply Lag: 2 days 1 hour(s) 42 minutes 37 seconds
Real Time Query: OFF
Instance(s): prodDB
it looks as if the massive backlog is just increasing. How can I confirm that everything that things are going well? I am still learning Data Guard.
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Jul 17, 2013
can i create physical standby database to logical standby database.
my structure
============
primary database--->physical standby-->logical standby
for fail over case ==>physical standby convert to primary and logical standby connected to current primary database.
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Nov 6, 2013
I have a Primary database and Standby database both in ASM. Recently my archive logs got deleted and i am trying to recover my standby database with an incremental backup based on scn from primary database. But i face the below error when i recover the standby database with the incremental backup taken in primary database.
RMAN> recover database noredo;Starting recover at 06-NOV-13using target database control file instead of recovery catalogallocated channel: ORA_DISK_1channel ORA_DISK_1: SID=21 device type=DISKchannel ORA_DISK_1: starting incremental datafile backup set restorechannel ORA_DISK_1: specifying datafile(s) to restore from backup setdestination for restore of datafile 00001: +STDBY/11gdb/datafile/system.258.805921881destination for restore of datafile 00002: +STDBY/11gdb/datafile/sysaux.259.805921967destination for restore of datafile 00003: +STDBY/11gdb/datafile/undotbs1.260.805922023destination for restore of datafile 00004: +STDBY/11gdb/datafile
[code]....
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Nov 5, 2010
I am trying to duplicate an Database and create an Physical Standby through following command
I took the backup through rman using the following command on Monday
RMAN> run
2> {
3> ALLOCATE CHANNEL C1 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
4> ALLOCATE CHANNEL C2 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
5> ALLOCATE CHANNEL C3 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
6> ALLOCATE CHANNEL C4 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
7> backup database format 'E:DB_FULL\DB1_FULL_%U';
8> backup archivelog all format 'E:DB_FULL\DB1_FULL_%U';
9> backup current controlfile for standby format 'E:DB_FULL\DB1_FULL_%U';
10> }
Today i am trying to clone the DB1 Database as physical standby ...
using the following command
> RMAN TARGET sys/sys@db1 AUXILIARY /
Then I exceuted the following command
> duplicate target database for standby dorecover;
but i am getting error RMAN-06024: no backup or copy of the control file found to restore
contents of Memory Script:
{
set until scn 11182084819076;
restore standby controlfile;
sql clone 'alter database mount standby database';
}
executing Memory Script
executing command: SET until clause
Starting restore at 05-NOV-10
using channel ORA_AUX_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 11/05/2010 15:45:30
RMAN-03015: error occurred in stored script Memory Script
RMAN-06026: some targets not found - aborting restore
RMAN-06024: no backup or copy of the control file found to restore
i even tried to switch the log file of the primary database DB1 but no avail,
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Jul 23, 2010
I need to rename an Oracle9i database on windows which has a physical standby database running on a different machine.
I have the steps to rename the primary database but am unsure of it's impact on the physical standby database. It seems like I will have to re-create the physical standby database, since renaming the primary database involves opening the db with "resetlogs". It's a production environment hence can't play with it without knowing the results.
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Aug 7, 2013
I have a Physical Standby database on server#2 which has its UNDO and TEMP tablespaces in a mount point that is a bit small. I discovered yesterday that this mount point was completely filled. This is not an immediate problem, because even though the TEMP and UNDO tablespaces are large, there is almost no usage of them.
I logged into my Primary, and created a new temp tablespace (TEMP2), made it the database default, dropped the TEMP tablespace, and then re-created the TEMP tablespace in a different mount point (with a much higher capacity!). I then made the new TEMP as the database default temp tablespace again. I expected that these changes would be propagated over to the Physical Standby via log application, but they didn't come over.
I have standby_file_management set to AUTO, and there are no unapplied logs. Everything OTHER than the temp tablespaces seems to be in synch.
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Sep 22, 2010
I have to implement Physical standby using same SID. parameters required to set on Primary and standby. Also what entries are required to do in TNS file. Recently we have faced hardware failure.
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Oct 19, 2011
We're currently in a situation where the primary database server fs size does not match the standby database server fs size.
Standby database filesystem is almost 100% utilized, and we suggested to move some of the datafiles first to avoid threshold alerts and archive gaps.
Now, if we're gonna move datafiles on the physical standby, I believe the process would be stop managed redo apply -> shutdown standby -> OS move -> startup mount -> alter rename -> start managed redo apply. Is this correct? If not, how?
Also, would it have an effect if the controlfiles of primary and standby do not match because of the movement?
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Oct 29, 2010
I want to configure CASCADED Physcial Standby Server...Can i give the DB_FILE_NAME_CONVERT parameter in the primary DB Server as
*.DB_FILE_NAME_CONVERT=(
'C:\ORACLE\ORADATA\PRIMARY\','E:\ORACLE\ORADATA\STANDBY1\','E:\ORACLE\ORADATA\STANDBY2\',
'E:\ORACLE\ORADATA\PRIMARY\','B:\ORACLE\ORADATA\STANDBY1\','G:\ORACLE\ORADATA\STANDBY2\')
Or in the Standby1
*.DB_FILE_NAME_CONVERT=(
'E:\ORACLE\ORADATA\STANDBY1\','E:\ORACLE\ORADATA\STANDBY2\',
'B:\ORACLE\ORADATA\STANDBY1\','G:\ORACLE\ORADATA\STANDBY2\')
I searched in google but could not able to find anything in this regard.
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Jul 24, 2013
I have a setup where i have one physical and logical standby from a primary database. In case of switch over between primary and physical database my logical apply gets stopped. Can a logical database be applied from a physical standby ?
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Jun 4, 2010
I have an issue whereby our standby instance was down for a couple of days and when it came back online we found an archivelog file was missing, so recovery only happened up to a point. It appears that the archivelog was deleted therefore we are unable to continue with this standby. We are now planning to rebuild the standby database. As far as i know all of the steps originally performed need not be performed to complete this task.
1. Shutdown standby
2. Delete all datafiles & redo logs
3. Copy over datafiles to respective directories
4. Copy online logs and archivelogs to standby.
5. Create a control file for standby database
6. Startup mount standby database
7. start redo apply
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Dec 7, 2010
Suddenly I can't open any of my physical standby databases read only. Alert log snippet and trace files follow post. I'm running 9.2.0.1.0 on all hosts, which are running AIX 5.2. I've successfully opened all physical standby databases read only numerous times in the past. Is it possible that these standby databases cannot be switched over to primary should the need arise?
Here's how I typically open a physical standby database read only:
alter database recover managed standby database cancel;
alter database open read only;
Errors in file /ora/product/9.2.0.1.0/rdbms/log/icps1_ora_27382.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-16000: database open for read-only access
Error 604 happened during db open, shutting down database
USER: terminating instance due to error 604
[code]...
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Mar 10, 2011
I did the all necessary steps required for the physical standby configuration. My standby db is mounted but not able to open.
Below are the steps.
SQL> startup mount
ORACLE instance started.
Total System Global Area 1845493760 bytes
Fixed Size 2021568 bytes
Variable Size 452986688 bytes
Database Buffers 1375731712 bytes
Redo Buffers 14753792 bytes
Database mounted.
SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='SERVICE=demodb' scope=both;
System altered.
SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2=ENABLE SCOPE=BOTH;
System altered.
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
Database altered.
SQL> recover managed standby database cancel;
Media recovery complete.
SQL> alter database open read only;
alter database open read only
*
ERROR at line 1:
ORA-16004: backup database requires recovery
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/u002/app/OraDB10g/stdemo/oradata/system01.dbf'
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH; ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [kcrfrsetnab_found], [1], [136], [],
[], [], [], []
ORA-00600: internal error code, arguments: [kcrfrgv_scn7], [], [], [], [], [],
[], []
SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [kccocx_01], [], [], [], [], [], [],
[]
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Sep 17, 2013
Today, I am learning dataguard 11.2.0.1. The docs said:A. Monitoring Standby DB Application of redo logs may be monitored by issuing the SQL command:
SQL> select client_dbid, process, sequence#, status from v$managed_standby;
In the primary database, the sequence# with the status “WRITING” would refer to the current redo log sequence#In the standby database, if the status of the process MRPO is “APPLYING LOG” and the status of the process LGWR is “IDLE”, then application of redo logs is up to dateI see that that MRPO at standby is "WAIT_FOR_GAP". How do I resolve this gap.
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Sep 17, 2012
DB1 <Primary> - Production
DB2 <Physial Standby> - DR
I will need to startup my DB2 in DR segment for testing.If i perform the below, will it affect my Production DB? I need it to be up and running as well.
DR:
recover managed standby database cancel;
shutdown immediate;
startup nomount;
alter database mount standby database;
recover standby database until cancel;
alter database activate standby database;
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Feb 12, 2013
I have 2 databases. Primary ( DB1 ) and Standby ( STBY1 ). My standby database went kaput, and i have as a result deleted the standby database in order to re-create it from a full primary backup.
Oracle 10g R2 on Server 2003.
I have followed several guides, and at this time i have done the following:
- Configured standby re-do logs on primary
- backed up current controlfile for standby
- backed up database plus archivelog
- configured the tnsnames
[code].........
The problem is here. I connect to RMAN from standby
rman nocatalog
connect target sys/password@ DB1
connect auxiliary /
run{
set until scn xxx;
duplicate target database for standby dorecover;
}
I receive an error message saying that it cannot find the file location of the backups that its trying to find. I see in the error that it tries to look locally for
E:FLASH_RECOVERY_AREA DB1 BACKUPSET2013_02_12), however the actual location is (E:FLASH_RECOVERY_AREA STBY1 BACKUPSET2013_02_12)
I have read that the locations need to be the same, however the instance names are different, and i thought i changed the pfile to accommodate that. My assumption is that i have made an error in the pfile. However i cannot see any issues there. Some things that i have changed in the pfile for standby:
*.db_file_name_convert='DB1','STBY1'
*.db_name='DB1'
*.db_recovery_file_dest='E:FLASH_RECOVERY_AREA'
*.db_unique_name='STBY1'
[code]........
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Jul 12, 2011
I have setup 11g Dataguard - physical standby. Everything seems to be fine. I have also tested switchover and failover using DG broker which seems to work fine.All, I would like to know is abt ORA-01109 during switchover..
My config - RACprim- RACstby
Primary - TEST_prim (instances - TEST1, TEST2)
Standby - TEST_stby (instances - TEST1, TEST2)
DGMGRL> SWITCHOVER TO TEST_stby;
Performing switchover NOW, please wait...
New primary database "TEST_stby" is opening...
Operation requires shutdown of instance "TEST1" on database "TEST_prim"
Shutting down instance "TEST1"...
ORA-01109: database not open
[code].....
This ORA error occurs when it tries to shut down primary. When primary is in open state, why its saying that database not open. Operation requires shutdown of instance "TEST1" on database "TEST_prim"..Shutting down instance "TEST1"..
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Aug 3, 2012
I would like to export few tables from the physical standby which is in read only mode.
I have tried both the exp and expdp methods and could successfully export and import the tables from physical standby using exp unfortunately the expdp does not allow this process from a read only database.
Does this mean that we still have to use the exp feature instead of expdp ?
Note : I would expect a proper response from experts and no unwanted comments like "Contact Oracle support" or "Paste the entire command here" or "Read the Manuals" or "Why i am exporting from Standby and not from Primary" etc.
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Jun 28, 2013
Our client requirement is to avoid table data to physical standby database.
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Nov 23, 2010
1) The Primary Database is UP. The Physical Stand By Database is DOWN. The Current Archive Log Sequence is 99 in Primary.
We have to apply Archive Log from 51 to 99 to the Standby Database. But Unfortunately, there is no backup of those Archivelogs and the ArchiveLogs from 51 to 98 have got deleted at Primary end.
Now how will you apply these Archive Logs from Primary Database to Physical Standby Database?
Note : The Physical StandBy Database is DOWN.
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Nov 23, 2011
I have set up a single instance standbys for rac databases. Now, I need to offload the backups from the primary on to the standbys.
1. cancel managed recovery
2. connect to target(standby) and catalog and backup the standby
3. put standby in managed recovery mode.
I think following these steps, I can restore primary(?). Now, My question is, how can I use these standby backups to clone/refresh databases? I tried it by connecting to target(primary), catalog and auxiliary but rman is using the primary backups instead of standby's to refresh the auxiliary database.
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Dec 7, 2010
Suddenly I can't open any of my physical standby databases read only. Alert log snippet and trace files follow post. I'm running 9.2.0.1.0 on all hosts, which are running AIX 5.2. I've successfully opened all physical standby databases read only numerous times in the past. solve this? Is it possible that these standby databases cannot be switched over to primary should the need arise?
Here's how I typically open a physical standby database read only:
alter database recover managed standby database cancel;
alter database open read only;
Errors in file /ora/product/9.2.0.1.0/rdbms/log/icps1_ora_27382.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-16000: database open for read-only access
[code]...
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Mar 29, 2011
I am trying to configure physical standby(s) across two boxes. I am getting the errors
ORA-12154: TNS:could not resolve service name
ORA-16055: FAL request rejected
I am able to communicate between the two servers, tnsping both of them, sqlplus to each of the instances, but getting the TNS issue.
Tue Mar 29 13:21:55 2011
ARC0: Evaluating archive log 6 thread 1 sequence 73594
ARC0: Destination LOG_ARCHIVE_DEST_2 archival not expedited
ARC0: Beginning to archive log 6 thread 1 sequence 73594
Creating archive destination LOG_ARCHIVE_DEST_3: '/tmp_archive_dest/DLXMTY/arch_
DLXMTY_1_73594.dbf'
Creating archive destination LOG_ARCHIVE_DEST_1: '/archives/DLXMTY/arch_DLXMTY_1
_73594.dbf'
[code]....
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Feb 6, 2013
Is it possible to set a physical standby between 2 servers with same OS but different level ? I mean primary has windows 2003 SP1 and Standby has windows 2003 SP2. I want to know if it will work properly or not.
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Sep 29, 2010
I have one primary database and one physical standby database on my data guard environment.
Now i want one more physical standby database in my data guard environment, meaning i want 2 physical standby. since this is a production environment, i need to take great care. However, downtime will be mandatory.
[u]init.ora for production:[/u]
pup2.__db_cache_size=6241124352
pup2.__java_pool_size=33554432
pup2.__large_pool_size=134217728
pup2.__oracle_base='/oracle/app/oracle'#ORACLE_BASE set from environment
pup2.__pga_aggregate_target=5771362304
[code]......
init.ora for my first primary standby
pup2.__db_cache_size=6509559808
pup2.__java_pool_size=33554432
pup2.__large_pool_size=67108864
pup2.__oracle_base='/oracle/app/oracle'#ORACLE_BASE set from environment
pup2.__pga_aggregate_target=5502926848
[code].......
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May 9, 2013
I have Oracle database on Oracle 10g R2 with physical as well as logical standby database.
1) Is is necessary to take Physical standby database backup?
2) If 1) yes then Which RMAN backup is preferred?with catalog or default?How to take backup as different location?
3)how to Restore that backup?How to ensure backup is valid?
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