I believe, in a multiple RAC Physical Standby nodes only one node applies the archivelogs to the standby database. How you can find which node is the APPLY NODE using a SQL query?
I know you can veiw this information by querying the standby configuration using DGMGRL but how would you find out this information from a remote client using SQLPlus/PLSQL?
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.)
i have attended an interview there i got a question like--->There are 100 archives generated in standby in that a series of five archives are missing and those are not available in the primary then how will you do.....
View 2 Replies View Related1) If i do changes in table on primary database and if i open standby database in Read-Only mode, i can see those changes immediately only if Real Time Apply is enabled. Am i correct? Database version is 10.2.0.4
2) From 11g, It is possible to apply redo while the standby is open in read only mode. prior to 11g, it was not possible. Right?
3) Should I first cancel Managed Recovery prior to issuing “ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY”?
I need to implement data guard on 2 node rac set setup in 10g.
View 1 Replies View RelatedI have a 2 node RAC environment (11.2.0.3) where each node has there own local Grid_home and RDBMS_home.
I am installing a Rolling Bundle Patch with OPatch in this environment. The installation document says that "The order of patching in RAC install is GRID_HOME, then RDBMS_HOME" so i did the following.
1. stopped all oracle related services on node1
2. set oracle_home=<Grid_home>
3. applied the opatch
4. opatch succeeded on node1 and it says "The node 'NODE2' will be patched next... Is the node ready for patching?
1. Should i shutdown the oracle services in Node2 and continue to patch the Grid_home ? If yes then the DB will be completely down for user access. This defeats the purpose of rolling mode which says there is no downtime.
2. Should i patch the RDBMS_home on node1 , start all the oracle services on node1 , stop the oracle services on node2 and then resume the opatch on node1 which is waiting to patch the Grid_home on node2 ?
current environment
Oracle VM 2 Node RAC cluster
Oracle 11G 11.2.0.3.0
Oracle 11g rel 2 GI
on current 2 node cluster we have GI and RAC db configured Nodes: vmorarac1,vmorarac2
we shutdown vmorarac1 to clone it to vmorarac5
on new node I have changed the hostname to vmorarac5 In /etc/sysconfig/network-scripts/ifcfg-eth0 change ip to new ip and same for /etc/sysconfig/network-scripts/ifcfg-eth1 152.144.199.210,152.144.199.211
mad echanges to /etc/hosts on vmorarac1/2 for 2 new IP address assigned to vmorarac5
152.144.199.171 vmorarac1.pbi.global.pvt vmorarac1
192.168.2.30 vmorarac1-priv.pbi.global.pvt vmorarac1-priv
152.144.199.184 vmorarac1-vip.pbi.global.pvt vmorarac1-vip
[Code]....
Query is is that all ok to reboot the new node to reflect changes as below and change the hostname to vmorarac2
152.144.199.210 vmorarac2.pbi.global.pvt vmorarac2
192.168.2.32 vmorarac2-priv.pbi.global.pvt vmorarac2-priv
152.144.199.211 vmorarac2-vip.pbi.global.pvt vmorarac2-vip
hostname change in /etc/sysconfig/network
On new node vmorarac5, there is alreay software for RAC DB and GUI cloned from vmorarac1
addnode.sh is used to add existing node, but as part of pre-requisite configuratoin is there any config step missing
We have oracle database 10g(10.2.0.4) running on AIX 5.1. we have installed 2-node RAC on another server AIX 6.1 . Now we want to migrate our single node database to new 2-node rac environment. how we can move/migrate/cluster-aware our single node database to 2-node rac?
View 3 Replies View RelatedI am installing Oracle 10g Clusterware in RHEL 5 Server. When i run root.sh in the second node the last step Running vipca(silent) for configuring nodeapps failed. Then i run VIPCA manually in second node and configured vip configuration successfully,but when i checked the post-checks for cluster services the Checking existence of VIP node application,Checking existence of ONS node application and Checking existence of GSD node application in second node failed. I am able to ping both the servers one another with vip name successfully and the CSS,CRS and EVM appears healthy in both nodes. 1. Does the vip configuration is proper? If no what is causing this error and how to rectify it? Find the output below
[root@Rhel52 bin]# ./crsctl check crsCSS appears healthyCRS appears healthyEVM appears healthy[root@Rhel52 bin]#[root@Rhel52 bin]# clear[root@Rhel52 bin]#[root@Rhel52 bin]# ./crs_stat -tName Type Target State Host------------------------------------------------------------------------------------ora.rhel5.gsd application ONLINE ONLINE rhel5ora.rhel5.ons application ONLINE ONLINE rhel5ora.rhel5.vip application ONLINE ONLINE rhel5ora.rhel52.gsd application ONLINE ONLINE rhel52ora.rhel52.ons application ONLINE ONLINE rhel52ora.rhel52.vip application ONLINE ONLINE rhel52 [root@Rhel52 bin]#./runcluvfy.sh stage -post crsinst -n
[code]....
I would like get more details about single node RAC.. What is single Node RAC?..
1). just configure only one server instead of two node... same RAC installation.. cluster installation and shared disk configuration in single server itself.. in future we can add node to this ...
2). in 11gR2 having new feature Single Node RAC.. Multiple instances running on same node and configure using Cluster...
is there any advantage using single node rac(other than online upgrade to full RAC).
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
I'm trying to add the third node to my existing two node cluster. In fact i succeded adding the node but i have the following problem:
-when i start node 1 and 2, everything is ok, but on node 3 startup one of the other nodes fails
-this happens in any combination: start 1 and 3, everything is ok. when i start node 2, node 3 fails
The asm configuration (disks, permissions, etc) is the same on all three nodes.find below the asm and crsd log details from the failure time:
alert_ASM.log
NOTE: enlarging ACD for group 1/0x124851d1 (DATA)
WARNNING: cache read a corrupted block group=DATA dsk=4 blk=1 from disk 4
+NOTE: a corrupted block from group DATA was dumped to /u01/app/oracle/diag/asm/+asm/+ASM3/trace/+ASM3_rbal_4109.trc+
WARNNING: cache read(retry) a corrupted block group=DATA dsk=4 blk=1 from disk 4
[code]...
How to find applied_time in standby database managed recovery mode (*PHYSICAL STANDBY*).
View 3 Replies View RelatedHow can find the number of standby databases configured for primary database from os level
View 9 Replies View RelatedI am having a table with content_id and content_data , content_data is of XMLTYPE
Content_data field in table is like below
<Content id="123234354" version="3">
<Definition>
<Code>ABC</Code>
[Code].....
i want to find in how many rows <Title> tag is after <XYZ> tag in the content_data field of the table?
I am trying to backup my control on a STBBY DB(RAC) and I am getting the ollowing error.
ORA-00245: control file backup failed; target is likely on a local file system
what the issue is? Note the FS is ACFS and can see on all my nodes
show all;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name PA01INS_IM3L059B are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
[code]...
ACFS file system
df -h /share/dbbkup/oracle/PA01INS/rman
Filesystem Size Used Avail Use% Mounted on
/dev/asm/pa01ins-33 75G 2.6G 73G 4% /share/dbbkup/oracle/PA01INS
rman cmdfile=control.rman
[code]...
What could be the reason for Such Errors.?OCR Integrity was Successful on one node and on the cloned node it was failed.
View 8 Replies View RelatedMy 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
Controlling User Access to Tables in a Logical Standby Database can be controlled using the following command:
ALTER DATABASE GUARD STANDBY;
My simple question is: how can I know the current active Guard setting in the standby database?
Oracle 11g R2.
We are going to set up dataguard physical standby on 2-node RAC, which primary is also 2-node RAC.
PRD site: prd-node1 & prd-node2DR site: dr-node1 & dr-node2.
As I know, there is only 1 instance to do the redo apply on standby (i.e. dr-node1).
My question is, what will happen if dr-node1 failure (by shutdown abort or kill process)? will dr-node2 change to redo apply?
I have a problem with finding a node in my tree, but when I click the find button, it threw a message NO DATA FOUND.
here is the code that I used in find button:
DECLARE
tri ITEM;
hanapin_mYnode FTREE.NODE;
BEGIN-- Find the tree itself.
[code]...
GROUP# THREAD# SEQUENCE# sizeMB ARC STATUS T
---------- ---------- ---------- ---------- --- ---------------- -
1 1 115 512 YES CLEARING O
2 1 116 512 YES CURRENT O
6 1 114 512 YES CLEARING O
4 1 112 512 YES CLEARING O
5 1 113 512 YES CLEARING O
3 1 111 512 YES CLEARING O
6 rows selected.
[code]...
Above result is from standby database.I am trying to understand the concept of standby redo log.My stadby database protection_mode is MAXIMUM PERFORMANCE.
i have configured physical standby in my local system, to check logshipping i created a table at primary db, wen i tried to check in standby, it says table does not exist..below are primary & standby alert entries..
Primary alert log
Fatal NI connect error 12514, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.98)(PORT=1522))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=STAND)(SERVER=dedicat ed)(CID=(PROGRAM=d:oracle11gappadministratorproduct11.1.0db_1inORACLE.EXE)(HOST=A960M)(USER=SYSTEM))(SERVER=dedicated)))
VERSION INFORMATION:
TNS for 64-bit Windows: Version 11.1.0.6.0 - Production
[code]....
I configured dataguard in my local system.
1) scn differs wrt primary in standby (i checked, 1day difference), how to make scn same?
2)i created a table in primary, its not refelecting in standby, (below i ve pasted alertlog entries)
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
Errors in file d:oracle11gappadministratordiag
dbmsstandstand racestand_dbw0_6916.trc:
ORA-01157: cannot identify/lock data file 2 - see DBWR trace file
ORA-01110: data file 2: 'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSAUX01.DBF'
[code]....
3)wen i try to open standby database in read only mode gives below error..
ERROR at line 1:
ORA-16004: backup database requires recovery
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1:
'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSTEM01.DBF'
I'm trying to prepare data guard operation on the virtual machines.
1. I have install Oracle database without start up database on the standby server.
2. I try to connect this db by sysdba, but failed!
Quote:
C:>sqlplus "/as sysdba"
SQL*Plus: Release 11.1.0.6.0 - Production on Wed Jan 5 20:03:33 2011
Copyright (c) 1982, 2007, Oracle. All rights reserved.
ERROR:
ORA-12560: TNS:protocol adapter error
Enter user-name:SQL*Plus: Release 11.1.0.6.0 - Production on Wed Jan 5 20:03:33 2011
Copyright (c) 1982, 2007, Oracle. All rights reserved.
ERROR:
ORA-12560: TNS:protocol adapter error
Enter user-name:
I'm using instruction below: [URL]
Why I can't login to database?
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.
View 10 Replies View RelatedI want to get the execute plan of a sql in standby database(read only),but failed,how can i do?
SQL> explain plan for select count(1) from hxl.tb_objects;
explain plan for select count(1) from hxl.tb_objects
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 2
ORA-16000: database open for read-only access
SQL> select count(1) from hxl.tb_objects;
COUNT(1)
----------
22238018
SQL> select open_mode from v$database;
OPEN_MODE
----------
READ ONLY
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
There are two servers.one in HP-UNIX and another is solaris.
I would like to configure a logical standby using oracle 9i...Is it possible in 9i?
Difference between standby and dataguard. I assume standby and dataguard are same?
View 4 Replies View Related