RAC and Oracle Sequences
We have a RAC running for two instances , we have noticed that one trigger on update which is using a sequences to get ids is not allocating such sequences
on sequence as expected , is every instance of RAC caching a set of sequences and the other instance have no idea about this , is this a configuration which has
to be done at RAC level
sayantan chakraborty wrote:
what is the difference between RAC and Oracle clusterware?RAC = Oracle Real Application Clusters
http://www.oracle.com/technology/products/database/clusterware/clusterware_for_unbreakable_linux_faq.html#
In the event of a system failure, clustering ensures high availability to users. Redundant hardware components, such as additional nodes, interconnect, and disks, allow the cluster to provide high availability. Such redundant hardware architectures avoid single points-of-failure and provide exceptional fault resilience.
In Oracle Real Application Clusters (RAC) environments, Oracle Clusterware monitors and manages Real Application Cluster databases. When a node in the cluster is started, all instances, listeners and services are automatically started. If an instance fails, the clusterware will automatically restart the instance, so that the service is often restored before the administrator notices it was down. In this sense Oracle Clusterware is the basis for Oracle Real Application Clusters.
In those environments RAC ensures the continuous operation of the database as well as its scalability by running more than one database instance simultaneously, typically one on every node in the cluster.
You cna
how to get RAC 10g?What did you mean?
If you mean Software:
http://www.oracle.com/technology/software/index.html
Docs:
http://www.oracle.com/technology/products/database/clustering/index.html
http://www.oracle.com/pls/db102/portal.portal_db?selected=16
Or Search on Google
http://www.google.co.th/search?rlz=1C1GGLS_thTH327TH327&sourceid=chrome&ie=UTF-8&q=Oracle+Real+Application+Cluster
Good Luck
Similar Messages
-
Directory Setup for RAC and Oracle Restart
I have three database installations that I'd like some insight on the initial directory structure and permissions. The three installations are:
1) Prod RAC - OEL 5U2, 11.2.0.2 Grid Infrastructure, 11.2.0.2 DB EE with RAC option
2) Test RAC - OEL 5U2, 11.2.0.2 Grid Infrastructure, 11.2.0.2 DB EE with RAC option
3) Single Instance - OEL 5U2, 11.2.0.2 Grid Infrastructure Standalone (Oracle Restart), 11.2.0.2 DB EE
The they all have two users GRID (for Grid Infrastructure Software Owner) and ORACLE (for Oracle Database Software Owner).
We had a consultant install the databases. It's very weird since we have an inconsistency in directories and permission. I want to understand the inconsistency between RAC installations as well as Oracle Restart Install.
SEE BELOW: The two RAC servers have different owners for /u01/app/11.2.0.2 directory. The Oracle Restart Installation - Single Instance has the same owner as Prod RAC but different than Test RAC. What the consultant said was that ORACLE_BASE would be /u01/app/oracle for both Grid Infrastructure and Database installations. This was to apply to TEST/PROD RAC (3 node, 3 instances, 1 instance/node) and Oracle Restart installation. The GRID_HOME would be /u01/app/11.2.0.2/grid and ORACLE_HOME would be /u01/app/11.2.0.2/db_1. It seems like the owners aren't setup correctly. Why? I don't want problems with patching or upgrading. If this setup is technically incorrect what is the best way to setup so there's no owner/permission issues. Is it necessary to have two separate ORACLE_BASE's like /u01/app/grid?
PRODUCTION REAL APPLICATION CLUSTER (Displaying only one Node details)
$ cd app
drwxr-xr-x 6 root oinstall 4096 Feb 26 2011 .
drwxr-xr-x 3 root oinstall 4096 Apr 21 2009 ..
drwxrwxr-x 4 grid oinstall 4096 Feb 26 2011 11.2.0.2
drwxrwxr-x 2 emagent oinstall 4096 Feb 26 2011 emagent
drwxrwxr-x 9 oracle oinstall 4096 May 16 2011 oracle
drwxrwx--- 7 grid oinstall 4096 Feb 26 2011 oraInventory
$ cd 11.2.0.2
drwxrwxr-x 4 grid oinstall 4096 Feb 26 2011 .
drwxr-xr-x 6 root oinstall 4096 Feb 26 2011 ..
drwxr-xr-x 79 oracle oinstall 4096 Mar 29 2011 db_1
drwxr-xr-x 69 root oinstall 4096 Feb 26 2011 grid
$ cd ..
$ cd oracle
9 oracle oinstall 4096 May 16 2011 .
drwxr-xr-x 6 root oinstall 4096 Feb 26 2011 ..
drwxr-xr-x 4 oracle oinstall 4096 Feb 26 2011 admin
drwxr-xr-x 3 oracle oinstall 4096 Feb 26 2011 cfgtoollogs
drwxrwxr-x 2 grid oinstall 4096 Feb 26 2011 Clusterware
drwxrwxr-x 11 grid oinstall 4096 Feb 26 2011 diag
drwxrwxr-x 3 grid oinstall 4096 Feb 26 2011 hqrac03
drwxr----- 3 oracle oinstall 4096 May 16 2011 oradiag_oracle
drwxr-xr-x 3 root root 4096 Mar 13 2011 oradiag_root
TEST REAL APPLICATION CLUSTER (Displaying only one Node details)
$ cd app
drwxr-xr-x 6 root oinstall 4096 Jan 26 2011 ./
drwxr-xr-x 3 root oinstall 4096 Jan 26 2009 ../
drwxrwxr-x 4 root oinstall 4096 Jan 26 2011 11.2.0.2/
drwxrwxr-x 2 emagent oinstall 4096 Mar 1 2011 emagent/
drwxrwxr-x 10 grid oinstall 4096 May 16 2011 oracle/
drwxrwx--- 7 grid oinstall 4096 Jan 27 2011 oraInventory/
$ cd 11.2.0.2
drwxrwxr-x 4 root oinstall 4096 Jan 26 2011 ./
drwxr-xr-x 6 root oinstall 4096 Jan 26 2011 ../
drwxr-xr-x 80 oracle oinstall 4096 Mar 17 2011 db_1/
drwxr-xr-x 70 root oinstall 4096 Jan 27 2011 grid/
$ cd ..
$ cd oracle
drwxrwxr-x 10 grid oinstall 4096 May 16 2011 ./
drwxr-xr-x 6 root oinstall 4096 Jan 26 2011 ../
drwxr-xr-x 4 oracle oinstall 4096 Feb 2 2011 admin/
drwxr-xr-x 4 oracle oinstall 4096 Feb 2 2011 cfgtoollogs/
drwxr-xr-x 2 grid oinstall 4096 Jan 26 2011 Clusterware/
drwxrwxr-x 11 grid oinstall 4096 Jan 26 2011 diag/
drwxr-xr-x 3 grid oinstall 4096 Jan 26 2011 hqract03/
drwxr-xr-x 3 grid oinstall 4096 Mar 23 2011 oradiag_grid/
drwxr----- 3 oracle oinstall 4096 May 16 2011 oradiag_oracle/
drwxr-xr-x 3 root root 4096 Jan 27 2011 oradiag_root/
SINGLE INSTANCE DATABASE (ORACLE RESTART)
$ cd app
drwxrwxr-x 6 503 oinstall 4096 Feb 26 2011 .
drwxr-xr-x 3 root root 4096 Apr 16 2009 ..
drwxrwxr-x 4 grid oinstall 4096 Feb 26 2011 11.2.0.2
drwxrwxr-x 8 grid oinstall 4096 Feb 26 2011 oracle
drwxrwx--- 6 grid oinstall 4096 Feb 26 2011 oraInventory
$ cd 11.2.0.2
drwxrwxr-x 4 grid oinstall 4096 Feb 26 2011 .
drwxrwxr-x 6 503 oinstall 4096 Feb 26 2011 ..
drwxr-xr-x 76 oracle oinstall 4096 Apr 6 2011 db_1
drwxr-x--- 69 root oinstall 4096 Feb 26 2011 grid
$ cd ..
$ cd oracle
drwxrwxr-x 8 grid oinstall 4096 Feb 26 2011 .
drwxrwxr-x 6 503 oinstall 4096 Feb 26 2011 ..
drwxrwxr-x 5 grid oinstall 4096 Feb 26 2011 admin
drwxrwxr-x 7 grid oinstall 4096 Feb 26 2011 cfgtoollogs
drwxrwxr-x 2 grid oinstall 4096 Feb 26 2011 checkpoints
drwxrwxr-x 2 grid oinstall 4096 Feb 26 2011 Clusterware
drwxrwxr-x 11 grid oinstall 4096 Feb 26 2011 diag
drwxrwxr-x 3 grid oinstall 4096 Feb 26 2011 hqods01
Thanks so much.Hello
I did only check prod, as that is the important one.
i am afraid that setup is not clean. I won't use the work is wrong, but need to be normalized.
grid oracle base need to be separate from oracle oracle base, and the grid oracle home, MUST be outside of oracle base/oracle home of the oracle user.
In a multi user setup, the structure should be as follow.
grid user, group oinstall, asm* groups
oracle user, group oinstall, dba and db* groups
The GRID install, have, grid home and oracle base
the oracle base for grid should be, /u01/app/grid
the grid home should be, /u01/app/11.2.0.3/grid
the Oracle user have several homes, and oracle base
the oracle base for oracle should be, /u01/oracle
so, for permissions, when I create this, i do as root
mkdir -p /u01/app/11.2.0.3/grid
mkdir -p /u01/app/grid
mkdir -p /u01/app/oracle
mkdir -p /u01/app/oraInventory
chown -R grid:oinstall /u01
chown -R oracle:oinstall /u01/app/oracle
then, you install grid .. you have so say oracle home is /u01/app/grid and oracle home is /u01/app/11.2.0.3/grid
at the end, the root.sh as part of the install will take care of the permissions for oraInventory, and the rest for grid.
when grid is installed, you can move to the oracle db install you use oracle base as /u01/app/oracle and oracle home as /u01/app/oracle/product/11.2.0.3/dbhome_1
that will give you
2 4 drwxr-xr-x 6 root oinstall 4096 Sep 21 03:20 /u01
5996545 4 drwxr-xr-x 6 root oinstall 4096 Sep 18 22:58 /u01/app
5996546 4 drwxr-xr-x 8 grid oinstall 4096 Sep 18 22:50 /u01/app/grid
5996547 4 drwxr-xr-x 3 root oinstall 4096 Sep 18 22:30 /u01/app/11.2.0.3
5996548 4 drwxr-xr-x 69 root oinstall 4096 Sep 21 10:52 /u01/app/11.2.0.3/grid
5996549 4 drwxrwx--- 5 grid oinstall 4096 Oct 30 22:08 /u01/app/oraInventory
7406840 4 drwxr-xr-x 7 oracle oinstall 4096 Oct 30 22:09 /u01/app/oracle
7406841 4 drwxr-xr-x 3 oracle oinstall 4096 Sep 18 22:58 /u01/app/oracle/product
7406842 4 drwxr-xr-x 6 oracle oinstall 4096 Oct 30 22:04 /u01/app/oracle/product/11.2.0.3
7766052 4 drwxr-xr-x 77 oracle oinstall 4096 Nov 2 01:20 /u01/app/oracle/product/11.2.0.3/dbhome_1
Each user have to use his own oracle_base, as each oracle_base will store files and folders created for logs, admin, diagnostic with different permissions and different usages, for a reason you have role separation.
example of the content of each oracle base
$ find /u01/app/oracle/ -maxdepth 1 -ls
7406840 4 drwxr-xr-x 7 oracle oinstall 4096 Oct 30 22:09 /u01/app/oracle/
7406841 4 drwxr-xr-x 3 oracle oinstall 4096 Sep 18 22:58 /u01/app/oracle/product
8749076 4 drwxrwxr-x 3 oracle asmadmin 4096 Sep 18 23:03 /u01/app/oracle/diag
8749064 4 drwxr-x--- 6 oracle oinstall 4096 Oct 30 22:09 /u01/app/oracle/admin
8716289 4 drwxr-xr-x 2 oracle oinstall 4096 Oct 30 22:18 /u01/app/oracle/checkpoints
8749061 4 drwxr-x--- 5 oracle oinstall 4096 Sep 18 23:12 /u01/app/oracle/cfgtoollogs
$ find /u01/app/grid/ -maxdepth 1 -ls
5996546 4 drwxr-xr-x 8 grid oinstall 4096 Sep 18 22:50 /u01/app/grid/
7307540 4 drwxrwxr-x 4 grid oinstall 4096 Sep 18 22:49 /u01/app/grid/diag
7307474 4 drwxr-xr-x 2 grid oinstall 4096 Sep 18 22:33 /u01/app/grid/Clusterware
7307265 4 drwxr-xr-x 2 grid oinstall 4096 Sep 18 22:33 /u01/app/grid/checkpoints
7307532 4 drwxr-x--- 4 grid oinstall 4096 Sep 18 22:49 /u01/app/grid/cfgtoollogs
7406796 4 drwxr-xr-x 3 root root 4096 Sep 18 22:50 /u01/app/grid/oradiag_root
Take care,
Alvaro. -
Database replication between Oracle RAC and Oracle Standalone DB
Hi,
We have currently 4 node RAC environment and Oracle RAC implementation with 4 Oracle instances. We want to move the one instance and make it Standalone with Oracle database due to availability issue. Thus we will remain with 3 nodes on the RAC database and one Standalone database. We want to implement Oracle replication on this solution, where partial database of RAC environment needs to be replicated to Standalone node.
We will have Oracle 9i database server for both RAC and Standalone machine.
The partial data that we are looking for replication are of size 25GB. Some of questions we have:
1. Is there any other replication mechanism apart from Materilzed view for this solution?
2. Is it feasible to sychronize around 25GB data between servers?
3. What can be estimated time for refresh or Synchronization?
Thanks in advance for help.The methods that we are evaluating currently for this replication are:
1. Multi Master replication
2. Oracle 9i Datagaurd.
Please let me know if we need to look for some other methods of replication also. -
Database replication between Oracle RAC and Oracle Standalone DB in 9i
Hi,
We have currently 4 node RAC environment and Oracle RAC implementation with 4 Oracle instances. We want to move the one instance and make it Standalone with Oracle database due to availability issue. Thus we will remain with 3 nodes on the RAC database and one Standalone database. We want to implement Oracle replication on this solution, where partial database of RAC environment needs to be replicated to Standalone node.
We will have Oracle 9i database server for both RAC and Standalone machine.
The partial data that we are looking for replication are of size 25GB. Some of questions we have:
1. Is there any other replication mechanism apart from Materilzed view for this solution?
2. Is it feasible to sychronize around 25GB data between servers?
3. What can be estimated time for refresh or Synchronization?
The methods that we are evaluating currently for this replication are:
1. Multi Master replication
2. Oracle 9i Datagaurd.
Please let me know if we need to look for some other methods of replication also.
Thanks in advance for help.ManojMac wrote:
The partial data that we are looking for replication are of size 25GB. Some of questions we have:
1. Is there any other replication mechanism apart from Materilzed view for this solution?Streams is another option
2. Is it feasible to sychronize around 25GB data between servers?Sure. Depending on the rate of change, your latency requirements, whether the standalone database has the horsepower to apply all the changes generated by to other three nodes, etc.
3. What can be estimated time for refresh or Synchronization?Depends on the architecture, the network connection, whether you are doing incremental refreshes, etc. And it depends on what time you're measuring-- you might be measuring the latency between the RAC cluster and the standalone database, you might be measuring the time it takes to incrementally refresh a single materailized view when there have been no changes, you might be measuring the time it takes to do a complete refresh of an entire refresh group, pulling 25 GB of data over the network.
The methods that we are evaluating currently for this replication are:
1. Multi Master replication
2. Oracle 9i Datagaurd.DataGuard is not an option if you only want to replicate a subset of the data. The two realistic options are materialized views and Streams. Are you anticipating that you will be making changes on both nodes? If not, you can use simple materialized views rather than multi-master replication.
Since 9.2 is not longer covered by Premier Support, are you planning to upgrade to a supported version in the near future? In particular, Streams works a lot better in later versions of the database.
Justin -
Oracle Clustre, Oracle Cluster with RAC and Oracle 10g
Is there a difference between Oracle Cluster and Oracle Cluster with RAC? Please explain. Do existing database codes run unmodified in Cluster or Cluster with RAC environment? What needs to be modified to make existing SQL codes RAC-aware. How to achieve 'all automatic' in case of failure and resubmission of Queries from failed instance to a running instance?
In 10g environment, do we need to consider licensing of RAC as a separate product? What are additional features one derives in 10g that is not in Cluster +RAC?
Your comments and pointers to comparison study and pictorial clarification will be very helpful.Oracle cluster like failsafe before or Veritas Cluster or other vendor's cluster is meant for HA (high availability) purpose. Which 2 nodes or more can see a shared disk with 1 active node. Whenever this active node failed through heartbeat other machine will know and will take the database over from there.
Oracle RAC is more for HA and load balance. In Oracle RAC 2 or more nodes are accessing the database at the same time so it spread load across all these nodes.
I believe Oracle 10g RAC still need seperate license for it. But you need to call Oracle or check the production document to verify it.
Oracle 10g besides improvement in RAC. It's main improvement is on the build in management of the database itself. It can monitored and selftune itself to much furthur level then before and give DBA much more information to determine the cause of the problem as well. Plus improvement on lots of utility as well like RMAN , data pump etc... I don't want to get into too much detail on this you can check on their 10g new features for more detail view.
Hope this help. :) -
OC4J -Time out and Oracle sequence problem
hi
i m using OC4J to access application which is using java as front and
and we using oracle sequence with cache as 20.
so when i accessing application thro' network my sequence skip from 20
mean 1-21-41-61 is it possible due to if lost connection opened from java for oracle thro' OC4J ? will it keep cache ?or lost ? is it really time out error?
if then hw to set time out in oracle?
u can refer below link
Re: ORABPEL-05002i think i may be having the same problem. My table is savings entries out of order. I would assume that each row saved would be in sequence number order...instead it goes from like 963, 964, 678, 679, ....??? wonder why it would place new entries in front of older entries in the table???
-
JDeveloper 10g and Oracle Sequences
Hello,
i am new to Java/JDeveloper and I would like to know,
how I can use an existing oracle sequence in JDeveloper to
create a value for a field in my table.
(using JDBC, no "Toplink")
Greetings.Hi,
you could issue a select <sequence>.nextval from dual query statement and obtain the result from the return set.
Frank -
Which is the difference between Oracle RAC and Oracle Clusterware?
Hi all, maybe this is a stupid question, but I've read the documentation, and still don't understand which is the difference between RAC and Clusterware.
Can anybody explain it to me?
Thanks in advance!RAC is database option part of Oracle Database software needed to have database running in cluster mode; see http://download.oracle.com/docs/cd/E11882_01/server.112/e16508/glossary.htm#CNCPT2076.
Clusterware is separate software needed to run Oracle Database in cluster mode: you can use Oracle Clusterware without Oracle Database but you cannot use Oracle Database with RAC option without Oracle Clusterware.
See http://download.oracle.com/docs/cd/E11882_01/rac.112/e16794/intro.htm#BABCHEEE.
Edited by: P. Forstmann on 19 nov. 2010 19:11
Edited by: P. Forstmann on 19 nov. 2010 19:11 -
Oracle RAC and Oracle Secure Backup Express
I am building a new RAC environment - 7-Nodes on Linux.
We are very interested in reviewing Oracle Secure Backup, possible Oracle Secure Backup Express.
My understanding about Oracle Secur eBackup Express is it is licensed "free" as long as you are working with a single tape drive.
Does anyone know - does this apply to RAC as well?
ThanksPlease refer to the OSB licensing document for
specific differences between OSB-XE and OSB:
http://download-west.oracle.com/docs/cd/B32520_01/doc/
license.101/b25528/toc.htm
In general, we recommend you backup each RAC node to
insure all local files are protected which would mean
the OSB-XE edition would not be recommended since
OSB-XE is backup of one server.Thank you - I will review this.
.. and your White Papers regarding performance were just what I was looking for. -
Robust messaging between Oracle RAC and Oracle XE
We ran into Bug 13484963 (ORA-3146 from AQ propogation from 11.2.0.3 to 11.2.0.2) - which means that a 11.2.0.3 queue fails to propagate to a 11.2.0.2 queue, due to this bug (ORA-03146: Invalid buffer length for TTC field).
I described the error in posting Bug 13484963: 11.2.0.3 AQ to 11.2.0.2 in the AQ forum, but no responses.
My question to this forum is what alternatives are there are to AQ, for passing XML/CLOBs robustly between a 11.2.0.3 platform and a 11.2.0.2 platform, when the network is at times not robust.
For example, rolling a custom PL/SQL solution will need to use a db link to push data across. If that tcp connection breaks without sender or receiver getting a FIN/RST bit set in a packet, the party will not know the tcp connection broke. And will wait. Forever. Until terminated externally (e.g. alter system disconnect session). There is no tcp timeout. There is no TcpKeepAlive option supported with such a db link connection. This requires more custom processing for monitoring existing custom processes (b-brain monitoring a-brain issue). Gets ugly.
With AQ for example, this is not a problem as it handles the same issue without a problem (likely internal code timeouts set via signal/event handlers?).
Any suggestions as how one can address the basic requirement for pushing XMLs (as CLOBs) with minimal hacking between databases without AQ?We have a "solution" that requires a data push from 11.2.0.3 to XE in this our case the size of data to be sent is fairly small (20-30 rows) and the target system does not require updates on every row change, data is pushed every 15 seconds across a database link using as merge statement executed in a pl/sql package run by a scheduler job. To mitigate for delays and network issues the job is monitored and shot in the head if it takes longer than 10 seconds, as you are dealing with clobs I'm not sure if this will work as
Another alternative we have looked at is Continuous Query Notification, this only got as far as a proof of concept as the customer changed their mind in our case the requirement was to push a small subset of the rows inserted into a table into a remote database to enable our monitoring team to check for certain types of activity the solution was a java process that registered a query on the source database and when notified of a change grabbed the rows and inserted them into the target, as we where looking at only a small set of rows (80-300 rows per day out of 1.5-2 million inserts) and the target application was written in java this proved workable.
Neither solution is elegant, particularly scalable or lacking in PL/SQL Hacks and in our case both are workarounds to an inflexible core application and new requirements that do not generate large revenue, currently we are looking at upgrading the XE databases to SEONE so that we can get support, patches and upgrades and move over to AQ for these type of problems. -
Difference between oracle 9i Rac and 10g Rac
Friends -
Could you please list out what are the main differences between oracle 9i Rac and oracle 10g Rac
Appreciate your support on this
Regards
satishhi
check the new features document of 10g RAC
http://download.oracle.com/docs/cd/B19306_01/rac.102/b14197/whatsnew.htm#sthref6
HTH -
R12 Apps with 4 node RAC and 4 apps nodes - Post Install check list
Hi All,
We have a new Oracle Apps R12 instalaltion with 4 node RAC and 4 Apps nodes with load balancing and external web tier being done by an outside firm. We are assigned the responsibility of checking that everything has been configured properly both on the RAC side and Apps side. I haven't worked on RAC earlier. Please let me know what all need to be checked before approving the install done by the outside firm.
Thank you!Please check below metalink notes
RAC Assurance Support Team: RAC and Oracle Clusterware Starter Kit and Best Practices (Generic) [ID 810394.1]
Using Oracle 10g Release 2 Real Application Clusters and Automatic Storage Management with Oracle E-Business Suite Release 12 [ID 388577.1]
Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 12 [ID 823587.1]
Oracle E-Business Suite and Oracle Real Application Clusters Documentation Roadmap [ID 745759.1]
745759.1 Oracle E-Business Suite and Oracle Real Application Clusters Documentation Roadmap
384248.1 Sharing The Application Tier file system in Oracle E-Business Suite Release 12
387859.1 Using AutoConfig to Manage System Configurations with Oracle E-Business Suite Release 12
406982.1 Cloning Oracle Applications Release 12 with Rapid Clone
240575.1 RAC on Linux Best Practices
265633.1 Automatic Storage Management Technical Best Practices
Loadbalancer
note 380489.1 Using Load-Balancers with Oracle E-Business Suite Release 12
note 727171.1 Implementing Load Balancing On Oracle E-Business Suite - Documentation For Specific Load Balancer Hardware
note 601694.1 How To Check Session Persistence On BigIP F5 And Cisco Ace Load Balancer Appliances
note 603325.1 Using Cisco ACE Series Application Control Engine with Oracle E-Business Suite Release 12
Installation R12
note 761564.1 Oracle Applications Installation and Upgrade Notes Release 12 (12.1.1) for Linux x86
note 402310.1 Oracle Applications Installation and Upgrade notes Release 12 (12.0) for Linux (32-bit)
note 559518.1 Cloning Oracle E-Business Suite Release 12 RAC-Enabled Systems with Rapid Clone
note 735276.1 Interoperability notes E-Business Suite R12 with Oracle Database 11gR1
Shared Applications Confiugurations:
note 380483.1 Oracle E-Business Suite Release 12 Additional Configuration and Deployment Options
note 384248.1 Sharing The Application Tier File System in Oracle E-Business Suite Release 12
Edited by: Amigo on Dec 20, 2010 9:58 AM -
hi all,
We have Oracle 10g RAC on IBM AIX
Today i will be uploading data in a table through sql loader.
I want that at the time of insertion only data which i am inserting goes into the table,As i am using sequence on particular column A.
Problem is If i shutdown database then i will not to able to insert data and if i doesnt shutdown db value for that column A is generated automatically when application works.
i have recommanded that we should stop connectivity of application with database then i will perform insertion but some people are saying no.Find other method
What steps should i do?Ok i thing my question was not clear
I have table XYZ
A B C
1 2 3
4 4 5
if application is connected to database value to Coulmn is incremented
A B C
1 2 3
4 4 5
5 6 7
i have to insert into table XYZ using sql loader giving sequence (4,1) on column A.
But if it is connected to application it will give me error of PK.
as Value 5 is already inserted by application so how can i stop this.
so that i can have the max value of coulmn and start sequence
Hope this time make u clear.
sorry for bad english -
Using Clob with TopLink 9.0.4.5 and Oracle 10g RAC
I am trying to store an XML file in a Clob type field of a DB table using TopLink 9.0.4.5 and Oracle 10g RAC and need some guidance about how to do it. I got some directions to start it with the Tip "How-To: Map Large Objects (LOBs) to Oracle Databases with OracleAS TopLink" but still need some more helps.
When using the Oracle JDBC OCI driver, the tip gives the code block for a Clob field:
DirectToField scriptMapping = new DirectToField();
scriptMapping.setAttributeName("script");
scriptMapping.setFieldName("IMAGE.SCRIPT");
descriptor.addMapping(scriptMapping);
As I understand, TopLink creates instances of the Descriptor class at run time for each of the descriptor files and stores them in a database session, where is the proper place (in SessionEvent of TopLinkSessionEventHandler?) for me to get a reference to such an instance of my Descriptor class in Java code so that I can add the above mentioned additional Mapping? Are the above String values of "script" and "IMAGE.SCRIPT" predefined in TopLink API? Can I accomplish the same thing just using the TopLink Workbench tool instead? If yes, please advise the detailed steps to do so.
The tip also states to call the following code in case of using Clob:
DatabaseLogin login = session.getLogin();
login.useStringBinding();
Should the above 2 lines of code be called after the following lines of code?
SessionManager sessionManager = SessionManager.getManager();
Server serverSession = (Server)sessionManager.getSession("MY_SESSION_NAME");
Besides the above extra coding for the Session and Descriptor Mapping, is there any special handling in between Data model and DB table mapping? Can I map a Java String type to a DB Clob field using the Direct-to-field mapping?
Appreciate any help.Never mind ....... I had already figured it out .....
-
Solaris 10 and Hitachi LUN mapping with Oracle 10g RAC and ASM?
Hi all,
I am working on an Oracle 10g RAC and ASM installation with Sun E6900 servers attached to a Hitachi SAN for shared storage with Sun Solaris 10 as the server OS. We are using Oracle 10g Release 2 (10.2.0.3) RAC clusterware
for the clustering software and raw devices for shared storage and Veritas VxFs 4.1 filesystem.
My question is this:
How do I map the raw devices and LUNs on the Hitachi SAN to Solaris 10 OS and Oracle 10g RAC ASM?
I am aware that with an Oracle 10g RAC and ASM instance, one needs to configure the ASM instance initialization parameter file to set the asm_diskstring setting to recognize the LUNs that are presented to the host.
I know that Sun Solaris 10 uses /dev/rdsk/CwTxDySz naming convention at the OS level for disks. However, how would I map this to Oracle 10g ASM settings?
I cannot find this critical piece of information ANYWHERE!!!!
Thanks for your help!You don't seem to state categorically that you are using Solaris Cluster, so I'll assume it since this is mainly a forum about Solaris Cluster (and IMHO, Solaris Cluster with Clusterware is better than Clusterware on its own).
Clusterware has to see the same device names from all cluster nodes. This is why Solaris Cluster (SC) is a positive benefit over Clusterware because SC provides an automatically managed, consistent name space. Clusterware on its own forces you to manage either the symbolic links (or worse mknods) to create a consistent namespace!
So, given the SC consistent namespace you simple add the raw devices into the ASM configuration, i.e. /dev/did/rdsk/dXsY. If you are using Solaris Volume Manager, you would use /dev/md/<setname>/rdsk/dXXX and if you were using CVM/VxVM you would use /dev/vx/rdsk/<dg_name>/<dev_name>.
Of course, if you genuinely are using Clusterware on its own, then you have somewhat of a management issue! ... time to think about installing SC?
Tim
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