Apply Patches on Oracle Database with Logical Standby Database

Here I am:
I got a primary database with a logical standby database running Oracle 11g. I got two client applications, one is the production site pointing to the primary one, another one is just a backup site pointing to the logical one.Things will only be written into the primary database every mid night and client applications can only query the database but not add, update nor delete.And now, I want to apply the latest patch on both of my databases. I am also the DNS administrator, I can make the name server pointing to the backup site instead of the production one.I want to firstly apply the patch on the logical one, and then the physical one.
I found some reference which explains how to apply patches by adopting "Rolling Upgrade Method". however, I want to avoid doing any "switch over" mentioned in the reference because I can make use of name server. Can I just apply patches as the following way?
1)Stop SQL apply
2)Apply patches on logical standby database
3)let the name server point to the backup site
4)Apply patches on the primary database
5)Start SQL apply
6)Let the name server point back to the production site
Thanks in advance.

Pl follow the steps in MOS Doc 437276.1 ( Upgrading Oracle Database with a Logical Standby Database In Place )
HTH
Srini

Similar Messages

How to monitor SQL Apply for 10.2.0.3 logical standby database

We have a logical standby database setup for reporting purposes. Users want to monitor whether sql apply is working or failed closely as it has reporting repercations.
In case of 9i databases , there was "Data Not Applied (logs)" metric which we used for alerting and paging, in case a backlog of more than 5 log files developed.
With 10.2.0.3 onwards, the metric no more exists.
I would like to learn from other, how to monitor the setup, so that if the backlog in logs shipping or applying develops, we get page.
Regards.

regather the statistics on the table with method_opt=>for all columns or for all indexed columns or whatever size 1
The 'size 1' directive will remove the histogram statistics.
Sorry, didn't read ur post in a hurry. Below article (http://www.freelists.org/post/oracle-l/Any-quick-way-to-remove-histograms,13) removes histogram without re-analyzing the table. Hope that helps!!!
On 3/16/07, Wolfgang Breitling <breitliw@xxxxxxxxxxxxx> wrote:
I also did a quick check and just using
exec
dbms_stats.set_column_stats(user,'table_name',colname=>'column_name',d
istcnt=>
<num_distinct>);
will remove the histogram without removing the low_value andhigh_value.
At 01:40 PM 3/16/2007, Alberto Dell'Era wrote:
On 3/16/07, Allen, Brandon <Brandon.Allen@xxxxxxxxxxx> wrote:
Is there any faster way to remove histograms other than
re-analyzing
>
the table? I want to keep the existing table, index & columnstats,
>
but with only 1 bucket (i.e. no histograms).You might try the attached script, that reads the stats using
dbms_stats.get_column_stats and re-sets them, minus the histogram,
using dbms_stats.set_column_stats.
I haven't fully tested it - it's only 10 minutes old, even if Ihave
slightly modified for you another script I've used for quite some
time - and the spool on 10.2.0.3 seems to confirmthat the histogram
is, indeed, removed, while all the other statistics are preserved.I
have also reset density to 1/num_distinct, that is the value youget
if no histogram is collected.regards,
naren
Edited by: fuzzydba on Oct 25, 2010 10:52 AM

Physical Standby database Vs. Logical Standby database

I have few questions regarding capability of Logical Standby Database against Physical Standby database.
1. How efficient is Logical Standby database in terms of Physical Standby Database?? How both differ from each other and can I use Logical Standby Database for disaster Recovery?? Can It be use for recovering the failed Primary Instance?? If yes how efficient and reliable it is??
2. What are the known bugs and roadblocks for logical standby database on Oracle 10.2.0.1 on Soalris X86-64?
3.As logical standby database not going to replicate each and every schema of Primary database?? how is the change management effects to the logical standby from primary?? I mean there are some parameters and job that we create on primary how can it be transferred over to the logical standby??

1. How efficient is Logical Standby database in terms
of Physical Standby Database?? How both differ from
each other and can I use Logical Standby Database for
disaster Recovery?? Can It be use for recovering the
failed Primary Instance?? If yes how efficient and
reliable it is??I'm not sure what sort of "efficiency" you're talking about here...
Physical standby is just the old, tried and true application of archived logs to recover a database. Very solid, very old school.
Logical standby, on the other hand, is parsing the redo log, extracting logical change records, and applying them to the standby database. This obviously takes a bit more processing effort, it's newer technology, it doesn't have quite the level of support that physical standby does (i.e. certain data types are excluded), etc. You certainly can use it for failover, but it isn't quite as robust as a physical standby. Of course, this is getting better and better all the time and is definitely a focus of Oracle's development efforts.
On the other hand, logical standby systems can do things other than act as a warm standby. They can be open serving reports, for example. You can create additional structures (i.e. new materialized views) to support reporting. A physical standby is pretty much always going to be in managed recovery mode, so it cannot be queried.
2. What are the known bugs and roadblocks for logical
standby database on Oracle 10.2.0.1 on Soalris
X86-64?a) You'll want to do a Metalink search
b) If you're talking about a high-availability solution, why are you looking at a base release of the database? Why wouldn't you apply the latest patchset?
3.As logical standby database not going to replicate
each and every schema of Primary database?? how is
the change management effects to the logical standby
from primary?? I mean there are some parameters and
job that we create on primary how can it be
transferred over to the logical standby??I'm not sure I understand... Changes made to the primary generate redo. Oracle parses that redo, generates a LCR, and sends that to the standby database where that change record gets applied.
Justin

Physical vs Logical standby database

In the Oracle HA guide, it is mentioned that we must take Logical backup "in addition" to Physical backup (not instead of Physical Backup)
If I run have two systems i.e a Primary System and a Logical standby database system , is it not sufficient protection ? If the primary fails, can I not recover the primary system using the nightly backup I take from the Logical Standby Database.
If it is not sufficient protection, what exactly I will lose ?
Assume I take the nightly complete hot backup backup from the Logical Standby Database instead of the Primary System to save CPU cycles of the primary system.
In other words, it is said that "physical standby database provides zero data loss without any allowance for data divergence" -- What exactly is meant here ?

Thanks Werner for the reply.
1. If there is a human error (dropping a table by mistake), it will be applied to the standby database irrespective of whether it is physical standby or Logical standby. I am unable to see any advantage with Logical standby database in this case. Am I missing something here ?
Or are there any other type of user errors where Logical standby provides an advantage ? Can you please name some ?
2. If I backup from the logical database and if I am willing to "restore" (instead of recover) the primary from this backup in case of a primary failure, is it not the same effort ?
3. Can't we set up a Logical Standby with Maximum Protection Mode ?
I am aware physical standby offers a better performance and it has no data type restrictions. I do not care about these two. Also, I am aware of the extra features provided by Logical database.
Overall, I am trying to see whether physical standby database has any "feature" which I will miss with Logical standby database. I tried my best with Oracle documentation, but I could not get a clear answer.
Any help is appreciated.

Prerequisite of Logical standby database ????

Hi,
We have Oracle 10g database with two physical standby databases on windows 2003 server 64 bit. we was thinking of shifting physical standby database into logical standby database.
We also look at the oracle documentation, as the link below. As we also found tables without unique logical identifier in the primary database.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/create_ls.htm#i76646
1 SELECT OWNER, TABLE_NAME FROM DBA_LOGSTDBY_NOT_UNIQUE
2 WHERE (OWNER, TABLE_NAME) NOT IN
3 (SELECT DISTINCT OWNER, TABLE_NAME FROM DBA_LOGSTDBY_UNSUPPORTED)
4* AND BAD_COLUMN='Y'
SQL> /
OWNER TABLE_NAME
TSMSYS SRS$
ICONNECT SYS_EXPORT_SCHEMA_01
KBC SYSTEM
KBC PLAN_TABLE
KBC AUDIT_SYSTEM
KBC SYS_EXPORT_SCHEMA_01
KASB_FIN PLAN_TABLE
ICONNECT PLAN_TABLE
UMAS PLAN_TABLE
The question is after we have found the tables without unique logical identifier in the primary database,
*1. Step 1: What to do with these tables. How to add unique logical identifier for theses table in the primary database.*
*2. Step 2: Add a disabled primary-key RELY constraint.* , Do we have to enable rely constraint to all tables in all schemas ???
Thanks in advanced.

1. Step 1: What to do with these tables. How to add unique logical identifier for theses table in the primary database.add a primary key on those tables
2. Step 2: Add a disabled primary-key RELY constraint. , Do we have to enable rely constraint to all tables in all schemas ???Document says this is for the ones returned from the query. If you are sure that uniqueness is controlled by your application on thise tables than you can add this type of constraint.
As you see most of them are plan tables for individual users. if you dont need tje, you can skip transactions for those objects by DBMS_LOGSTDBY.SKIP
hope it helps
Coskan Gundogar
http://coskan.wordpress.com

Restore/recover after failover to a Logical Standby database

I have a question about how to recover or restore back to my original environment after I failover to my Logical Standby database.
My setup is as follows: Oracle version 11.2.0.3, Non-RAC.
1. A Primary database at one location.
2. A Physical Standby database at a second location.
3. A Logical Standby database at a third location.
All three databases have Flashback Database on
All three databases are configured thru the Data Guard Broker.
All three databases has a Fast Recovery Area.
Suppose I loose my primary database (1) and my Physical Standby database (3) so I Failover to my only remaining database, the Logical Standby database (2).
What type of Databases are let after the this failover?
What are my recover/restore/Instantiate options?
The Data Guard Concepts book on 13.2.2 says how to bring the old Primary in to the Data Guard Configuration as a new Logical Standby database.
How do I get back to the original configuration above, a primary, a Physical, and a Logical Standby without having to re-create some databases?
Will Flashback database thru the Broker or Cloud Control/Grid Control rewind my databases?

Suppose I loose my primary database (1) and my Physical Standby database (3) so I Failover to my only remaining database, the Logical Standby database (2).
What type of Databases are let after the this failover?
What are my recover/restore/Instantiate options? Then forget about your current primary database, its out of network.
AFAIK
Now you will have only Physical standby & logical standby. Now you will perform failover only current standby to primary database.
So now you will have only one primary database with new incarnation, so you have to recreate a new standby database again.
The Data Guard Concepts book on 13.2.2 says how to bring the old Primary in to the Data Guard Configuration as a new Logical Standby database.
How do I get back to the original configuration above, a primary, a Physical, and a Logical Standby without having to re-create some databases?
Will Flashback database thru the Broker or Cloud Control/Grid Control rewind my databases?Check this. But not much aware of Clound control and all. Sorry for that. ;-) I'm sure Uwe/Mseberg can answer this ;-)
http://www.idevelopment.info/data/Oracle/DBA_tips/Data_Guard/DG_49.shtml#Flashing%20Back%20a%20Failed%20Primary%20Database%20into%20a%20Logical%20Standby%20Database

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>

Slow SQL Apply on Logical Standby Database in Oracle10g

Hi,
We are using Oracle 10g Logical Standby database in our production farm but whenever there is bulk data load (5-6 GB data) on the primary database, the logical standby seems to be hung. It takes days to apply the 5-6 GB data on the logical standby.
Can anybody give me some pointers how can I make my SQL Apply fast on the logical standby for bulk data.
Thanks
Amit

Hi there,
I've a similar problem. I did an insert of 700k on a table. It takes me over 1 1/2 hours to see the data. Notice, I increased the "max_sga" to 300m and "max_servers" to 25" and didn't help the performance at all.
My version is 10.2.0.3 with the patch 6081550.
APPLIED_SCN APPLIED_TIME RESTART_SCN RESTART_TIME LATEST_SCN LATEST_TIME MINING_SCN MINING_TIME
1015618 29-NOV-2007 18:28:51 1009600 29-NOV-2007 18:28:51 1017519 29-NOV-2007 19:54:07 1015656 29-NOV-2007 18:32:14

Sql Apply issue in logical standby database--(10.2.0.5.0) x86 platform

Hi Friends,
I am getting the following exception in logical standby database at the time of Sql Apply.
After run the command alter database start logical standby apply sql apply services start but after few second automatically stop and getting following exception.
alter database start logical standby apply
Tue May 17 06:42:00 2011
No optional part
Attempt to start background Logical Standby process
LOGSTDBY Parameter: MAX_SERVERS = 20
LOGSTDBY Parameter: MAX_SGA = 100
LOGSTDBY Parameter: APPLY_SERVERS = 10
LSP0 started with pid=30, OS id=4988
Tue May 17 06:42:00 2011
Completed: alter database start logical standby apply
Tue May 17 06:42:00 2011
LOGSTDBY status: ORA-16111: log mining and apply setting up
Tue May 17 06:42:00 2011
LOGMINER: Parameters summary for session# = 1
LOGMINER: Number of processes = 4, Transaction Chunk Size = 201
LOGMINER: Memory Size = 100M, Checkpoint interval = 500M
Tue May 17 06:42:00 2011
LOGMINER: krvxpsr summary for session# = 1
LOGMINER: StartScn: 0 (0x0000.00000000)
LOGMINER: EndScn: 0 (0x0000.00000000)
LOGMINER: HighConsumedScn: 2660033 (0x0000.002896c1)
LOGMINER: session_flag 0x1
LOGMINER: session# = 1, preparer process P002 started with pid=35 OS id=4244
LOGSTDBY Apply process P014 started with pid=47 OS id=5456
LOGSTDBY Apply process P010 started with pid=43 OS id=6484
LOGMINER: session# = 1, reader process P000 started with pid=33 OS id=4732
Tue May 17 06:42:01 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1417, X:\TANVI\ARCHIVE2\ARC01417_0748170313.001
Tue May 17 06:42:01 2011
LOGMINER: Turning ON Log Auto Delete
Tue May 17 06:42:01 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01417_0748170313.001
Tue May 17 06:42:01 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1418, X:\TANVI\ARCHIVE2\ARC01418_0748170313.001
LOGSTDBY Apply process P008 started with pid=41 OS id=4740
LOGSTDBY Apply process P013 started with pid=46 OS id=7864
LOGSTDBY Apply process P006 started with pid=39 OS id=5500
LOGMINER: session# = 1, builder process P001 started with pid=34 OS id=4796
Tue May 17 06:42:02 2011
LOGMINER: skipped redo. Thread 1, RBA 0x00058a.00000950.0010, nCV 6
LOGMINER: op 4.1 (Control File)
Tue May 17 06:42:02 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01418_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1419, X:\TANVI\ARCHIVE2\ARC01419_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01419_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1420, X:\TANVI\ARCHIVE2\ARC01420_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01420_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1421, X:\TANVI\ARCHIVE2\ARC01421_0748170313.001
LOGSTDBY Analyzer process P004 started with pid=37 OS id=5096
Tue May 17 06:42:03 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01421_0748170313.001
LOGSTDBY Apply process P007 started with pid=40 OS id=2760
Tue May 17 06:42:03 2011
Errors in file x:\oracle\product\10.2.0\admin\tanvi\bdump\tanvi_p001_4796.trc:
ORA-00600: internal error code, arguments: [krvxbpx20], [1], [1418], [2380], [16], [], [], []
LOGSTDBY Apply process P012 started with pid=45 OS id=7152
Tue May 17 06:42:03 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1422, X:\TANVI\ARCHIVE2\ARC01422_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01422_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1423, X:\TANVI\ARCHIVE2\ARC01423_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01423_0748170313.001
Tue May 17 06:42:03 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1424, X:\TANVI\ARCHIVE2\ARC01424_0748170313.001
LOGMINER: session# = 1, preparer process P003 started with pid=36 OS id=5468
Tue May 17 06:42:03 2011
LOGMINER: End mining logfile: X:\TANVI\ARCHIVE2\ARC01424_0748170313.001
Tue May 17 06:42:04 2011
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 1425, X:\TANVI\ARCHIVE2\ARC01425_0748170313.001
LOGSTDBY Apply process P011 started with pid=44 OS id=6816
LOGSTDBY Apply process P005 started with pid=38 OS id=5792
LOGSTDBY Apply process P009 started with pid=42 OS id=752
Tue May 17 06:42:05 2011
krvxerpt: Errors detected in process 34, role builder.
Tue May 17 06:42:05 2011
krvxmrs: Leaving by exception: 600
Tue May 17 06:42:05 2011
Errors in file x:\oracle\product\10.2.0\admin\tanvi\bdump\tanvi_p001_4796.trc:
ORA-00600: internal error code, arguments: [krvxbpx20], [1], [1418], [2380], [16], [], [], []
LOGSTDBY status: ORA-00600: internal error code, arguments: [krvxbpx20], [1], [1418], [2380], [16], [], [], []
Tue May 17 06:42:06 2011
Errors in file x:\oracle\product\10.2.0\admin\tanvi\bdump\tanvi_lsp0_4988.trc:
ORA-12801: error signaled in parallel query server P001
ORA-00600: internal error code, arguments: [krvxbpx20], [1], [1418], [2380], [16], [], [], []
Tue May 17 06:42:06 2011
LogMiner process death detected
Tue May 17 06:42:06 2011
logminer process death detected, exiting logical standby
LOGSTDBY Analyzer process P004 pid=37 OS id=5096 stopped
LOGSTDBY Apply process P010 pid=43 OS id=6484 stopped
LOGSTDBY Apply process P008 pid=41 OS id=4740 stopped
LOGSTDBY Apply process P012 pid=45 OS id=7152 stopped
LOGSTDBY Apply process P014 pid=47 OS id=5456 stopped
LOGSTDBY Apply process P005 pid=38 OS id=5792 stopped
LOGSTDBY Apply process P006 pid=39 OS id=5500 stopped
LOGSTDBY Apply process P007 pid=40 OS id=2760 stopped
LOGSTDBY Apply process P011 pid=44 OS id=6816 stopped
Tue May 17 06:42:10 2011

Errors in file x:\oracle\product\10.2.0\admin\tanvi\bdump\tanvi_p001_4796.trc:
ORA-00600: internal error code, arguments: [krvxbpx20], [1], [1418], [2380], [16], [], [], []submit an SR to ORACLE SUPPORT.
refer these too
*ORA-600/ORA-7445 Error Look-up Tool [ID 153788.1]*
*Bug 6022014: ORA-600 [KRVXBPX20] ON LOGICAL STANDBY*

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 Patel

Hi 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

Real-time apply cascaded logical standby database

Hi
I have a primary database orcl
Pysical standby database orcl_std
Cascaded logical standby database orcl_tri which receives archivelogs from orcl_std
Real time apply is enabled both in orcl_std (physical standby) and orcl_tri (logical standby)
When I create a table in primary orcl, I am unable to see it on orcl_tri (Although real time apply is enabled)
However, when I switch log in primary, I can see the new table on orcl_tri.
My question is, why realtime apply is not working in my scenerio ?
orcl_std : ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION USING CURRENT LOGFILE;
orcl_tri: ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;
Oracle 11.2.0.3.0

Hi mseberg,
Thanks for your reply.
There is no load or network issue as I`ve just created these databases for the experiement.
I have the same output from standby and primary databases.
SQL> select bytes/1024/1024 from v$standby_log;
BYTES/1024/1024
             10
             10
             10I can see below output in standby alertlog
Fri Nov 16 08:39:51 2012
ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE
ALTER DATABASE START LOGICAL STANDBY APPLY (orcl)
with optional part
IMMEDIATE
Attempt to start background Logical Standby process
Fri Nov 16 08:39:51 2012
LSP0 started with pid=37, OS id=16141
Completed: ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE
LOGMINER: Parameters summary for session# = 1
LOGMINER: Number of processes = 3, Transaction Chunk Size = 201
LOGMINER: Memory Size = 30M, Checkpoint interval = 150M
LOGMINER: SpillScn 1953318, ResetLogScn 995548
LOGMINER: summary for session# = 1
LOGMINER: StartScn: 0 (0x0000.00000000)
LOGMINER: EndScn: 0 (0x0000.00000000)
LOGMINER: HighConsumedScn: 1955287 (0x0000.001dd5d7)
LOGMINER: session_flag: 0x1
LOGMINER: Read buffers: 16
Fri Nov 16 08:39:55 2012
LOGMINER: session#=1 (Logical_Standby$), reader MS00 pid=30 OS id=16145 sid=49 started
Fri Nov 16 08:39:55 2012
LOGMINER: session#=1 (Logical_Standby$), builder MS01 pid=39 OS id=16149 sid=44 started
Fri Nov 16 08:39:55 2012
LOGMINER: session#=1 (Logical_Standby$), preparer MS02 pid=40 OS id=16153 sid=50 started
LOGMINER: Turning ON Log Auto Delete
LOGMINER: Begin mining logfile during commit scan for session 1 thread 1 sequence 202, +DATA/orcl_std/archivelog/2012_11_15/thread_1_seq_202.349.799450179
LOGMINER: End mining logfiles during commit scan for session 1
LOGMINER: Turning ON Log Auto Delete
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 202, +DATA/orcl_std/archivelog/2012_11_15/thread_1_seq_202.349.799450179
LOGMINER: End   mining logfile for session 1 thread 1 sequence 202, +DATA/orcl_std/archivelog/2012_11_15/thread_1_seq_202.349.799450179
Fri Nov 16 08:40:04 2012
LOGSTDBY Analyzer process AS00 started with server id=0 pid=41 OS id=16162
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS03 started with server id=3 pid=45 OS id=16175
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS04 started with server id=4 pid=46 OS id=16179
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS01 started with server id=1 pid=42 OS id=16167
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS05 started with server id=5 pid=47 OS id=16183
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS02 started with server id=2 pid=44 OS id=16171Do you think real-time apply wasnt setup properly ?

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.
Denis

Hi
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

ALTER DATABASE START LOGICAL STANDBY APPLY INITIAL

I am using oracle 9.2.0.8 db version. I am trying to configure logical standby database. When I issue "ALTER DATABASE START LOGICAL STANDBY APPLY INITIAL" i get following error.
ERROR at line 1:
ORA-01427: single-row subquery returns more than one row
ORA-06512: at line 1

Hello,
Please, have a look on the Alert log fille, and post the error message if any.
May be you'll have more information about the offending subquery.
Best regards,
Jean-Valentin

Redo data not applied on logical standby database 10g

after a network problem within the primary and the logical standby database. The redo data is not applied on the logical standby even if all the archived log are sent to it.
The below is the output from v$archive_gap and DBA_LOGSTDBY_LOG
SQL> select * from v$archive_gap;
no rows selected
SQL> SELECT SEQUENCE#, FIRST_TIME, APPLIED
FROM DBA_LOGSTDBY_LOG
ORDER BY SEQUENCE#; 2 3
SEQUENCE# FIRST_TIME APPLIED
3937 24-FEB-10 01:48:23 CURRENT
3938 24-FEB-10 10:31:22 NO
3939 24-FEB-10 10:31:29 NO
3940 24-FEB-10 10:31:31 NO
3941 24-FEB-10 10:33:44 NO
3942 24-FEB-10 11:54:17 NO
3943 24-FEB-10 12:05:30 NO
Any help?
Thanks

ORA-00600: internal error code, arguments: [krvxgirp], [], [], [], [], [], [], []
LOGSTDBY Analyzer process P003 pid=48 OS id=8659 stopped
Wed Feb 24 16:49:04 2010
Errors in file /oracle/product/10.2.0/admin/umarket/bdump/oradb_lsp0_8651.trc:
ORA-12801: error signaled in parallel query server P003
ORA-00600: internal error code, arguments: [krvxgirp], [], [], [], [], [], [], []
and below an Warning: Apply error received: ORA-26714: User error encountered while applying. Clearing. from oradb_lsp0_8651.trc
Thanks

Oracle EBS R12 - 11.2.0.2 - Logical Standby Database & RMAN backups

Hi all,
I have Oracle EBusiness Suite R12 running on 11.2.0.2. Our organization used to have most of the business in North America, South America and Europe; but now we are also in Australia, China and Indonesia. Previously running large reporting batch jobs and RMAN backups at night time in USA was feasible but now that is beginning to show up as performance issue for some countries.
I was thinking would it make sense to have a Active Data Guard logical standby database on a separate server in the same US based data center where we have our main servers and use that logical standy database for reporting and RMAN backups. I am especially concerned about RMAN backups. Would I be able to make RMAN backups from the logical standy database and somehow use those to recover our primary database if some issue happens?
Any thoughts/suggestions?
Thanks all,

Active Data Guard only deals with physical standbys. If you are using a logical standby you can always open the database without using Active Data Guard option.
http://docs.oracle.com/cd/E11882_01/server.112/e25608/rman.htm#sthref846 says that:
>
Backups of logical standby databases are not usable at the primary database.

Apply Patches on Oracle Database with Logical Standby Database

Similar Messages

Maybe you are looking for