ISQLPlus on EM with RAC

So far, I'm not impressed by Oracle technicians' ability to explain features specific to a RAC system on 10g. When we open TARs, we find ourselves constantly getting juggled back and forth among different people because one will say, "Oh, that's easy" (until you mention you're dealing with RAC), and then the RAC people often won't know anything about the feature.
Here we have some lovely docs available on all sorts of stuff, including advanced Enterprise Manager configuration:
http://download-west.oracle.com/docs/cd/B12037_01/nav/portal_3.htm
However, RAC is not mentioned in that doc anywhere. In fact, there doesn't seem to be any documentation on setting up Enterprise Manager with RAC (perhaps because nobody there knows how to do it). So, right now we have EM running on a box near our database servers, and it accesses them over the private network there, and we access that Enterprise Manager box over the web.
Some things are working, others are not...one thing that isn't is iSQLPlus--anyone know how to get that running with the RAC system? (I mean, we already started the listener on the db servers and all that, but the error message on the EM webpage says for Grid Control, manual configuration is necessary).

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Problems with RAC and XA: Fallback

Hello,
we are seing problems with RAC and XA (Tuxedo 11, DB 11.2), specifically encountering "ORA-24798: cannot resume the distributed transaction branch on another instance".
The first scenario relates to fallback after a RAC node failure. There are two servers, S1 and S2. S1 makes an ATMI call to S2. Both servers are in the same Tuxedo group, using TMS_ORA. RAC is set up for failover (BASIC), no load balancing.
The sequence is:
- S1 and S2 are connected to the same RAC node n1. All is well.
- RAC node n1 fails. S1, S2 and the TMS_ORA all fail over to RAC node n2. After the failover has happened, all is well.
- RAC node n1 recovers. All is still well (as there is no automatic fallback).
- S1 (or S2) is restarted (either intentionally or because of a crash). Since n1 is up again, S1 connects to n1. Now we get ORA-24798. Permanently.
S1 is connected to n1 and S2 is connected to n2. Since both are in the same group, both use the same XA transaction branch. When called, S2 attempts to JOIN the transaction branch that S1 started. But the DB (11.2) does not allow the same branch to span more than one node. Hence the ORA-24798.
This seems to be a severe limitation in the combination of Tuxedo, XA and RAC. It basically means we still have to use DTP services, even with Tuxedo 11 and DB 11.2. Or are we missing something?
We could put S1 and S2 into different groups, but that seems to be inefficient, and not practical for a real application (10s of servers).
I am extrapolating from this that RAC load balancing would also not work, as S1 and S2 could be connected to different RAC nodes.
Roger

Roger,
When using an external transaction manager such as Tuxedo you should still declare Oracle services as DTP services when using Oracle Database 11g. The Tuxedo documentation is not clear about this. The relevant 11gR2 RAC documentation is at http://download.oracle.com/docs/cd/E11882_01/rac.112/e16795/hafeats.htm and states
"An XA transaction can span Oracle RAC instances by default, allowing any application that uses the Oracle XA library to take full advantage of the Oracle RAC environment to enhance the availability and scalability of the application.
"GTXn background processes support global (XA) transactions in an Oracle RAC environment. The GLOBAL_TXN_PROCESSES initialization parameter, which is set to 1 by default, specifies the initial number of GTXn background processes for each Oracle RAC instance. Use the default value for this parameter clusterwide to allow distributed transactions to span multiple Oracle RAC instances. Using the default value allows the units of work performed across these Oracle RAC instances to share resources and act as a single transaction (that is, the units of work are tightly coupled). It also allows 2PC requests to be sent to any node in the cluster.
"Before Release 11.1, the way to achieve tight coupling in Oracle RAC was to use Distributed Transaction Processing (DTP) services, that is, services whose cardinality (one) ensured that all tightly-coupled branches landed on the same instance—regardless of whether load balancing was enabled. Tightly coupled XA transactions no longer require the special type of singleton services to be deployed on Oracle RAC databases if the XA application does not join or resume XA transaction branches. XA transactions are transparently supported on Oracle RAC databases with any type of service configuration.
A"n external transaction manager, such as Oracle Services for Microsoft Transaction Server (OraMTS), coordinates DTP/XA transactions. However, an internal Oracle transaction manager coordinates distributed SQL transactions. Both DTP/XA and distributed SQL transactions must use the DTP service in Oracle RAC."
This issue came up earlier this year in another newsgroup thread at https://forums.oracle.com/forums/thread.jspa?threadID=2165803
Regards,
Ed

How to Configure a oracle R12 with RAC on two different system .

I have one laptop and one desktop
Laptop----
on laptop I have install vmware 8
Host OS --win7
Guest OS---linux 4
Desktop ---
On Desktop I have install Vmware 8
Hosts OS --- Win XP
Guest OS ---Linux 4
Plz suggest How configure oracle R12 with RAC using both system .

Hussein Sawwan wrote:
on laptop I have install vmware 8
Host OS --win7
Guest OS---linux 4
Desktop ---
On Desktop I have install Vmware 8
Hosts OS --- Win XP
Guest OS ---Linux 4
Plz suggest How configure oracle R12 with RAC using both system .If you want to configure RAC, then you must have the same OS installed on all RAC nodes -- See (RAC: Frequently Asked Questions [ID 220970.1], Does Oracle Clusterware or Oracle Real Application Clusters support heterogeneous platforms?) for details.
Once you have the same OS, please refer to:
Oracle E-Business Suite Release 12 High Availability Documentation Roadmap [ID 1072636.1]
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]
Thanks,
HusseinHi Hussein,
For Rac I am using both same OS (linux 4) for both nodes .
Plz suggest its possible to install two nodes on different machine(diiferent virtual machine on different system ) .Can communicate both machine without any problem if its possible plz provide links.

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. :)

GG with RAC - failover

11.1.1 GG on Oracle 11gR2 - Source is single instance - Target is two node RAC .
We are planning to have HA for the GG process - If one node goes down we have to start processing from the second Node. - We are planning to have a shared file system for GG software - which will have all the metadata required shared across nodes - Can we use the RAC virtual IP for the pump process to ship the trail files - If one node goes down VIP fails over to the other node and we will have the trail files over there - Is it a supported config ? Can you share some metalink notes for configuring GG on RAC Target -
Thanks

Hi,
Please refer to the Oracle White Paper—Oracle GoldenGate high availability with Oracle Clusterware
for more information on configuring OGG with RAC & clusterware.
http://www.oracle.com/technetwork/middleware/goldengate/overview/ha-goldengate-whitepaper-128197.pdf
Thanks & Regards
SK

Problems with RAC installation with Windows 2000 Advanced Server

Hello,
I've two servers in cluster mode with W2K Advanced Server, and a RAID-5 array of 4 disks shared by both of them. My problem is that I've installed The Cluster Service of Windows in order to have an active/passive configuration of my servers, because I have a common directory structure that is accessed by the PC's of the LAN.
By another hand, I want to install Oracle Real Application Cluster to manage my Oracle database but after create the extended partition and the logical drives when I execute the file \preinstallation_rac\clustersetup\clustersetup.exe to create the cluster, when I select the option Create a cluster the following error message appears me:
"Any disk Oracle partition has been found. Stop this wizard, create an Oracle partition and try it
again."
I'd like to know if it's possible to have the Service Cluster of Windows 2k and the Oracle clusterware?¿ Altough before begining the installation I've stopped my Cluster Service as documentation suggests. If somebody knows what it's happening to me I'd be really very grateful.
Thanks in advance,
Isabel

Hello Joel,
I've already read all documentation provided by Oracle about Real Application Clusters
and I've not found anything to solve my problem. Certainly I want to use OCFS but when I
try to execute preinstall_rac\clustersetup.exe to install CFS the error appear and I can't
continue with RAC installation.
Besides I've tried command "lsnodes -v" and got :
Could not load CM.dll
Could not initialize cluster
And when I've tried to run "clustercheck" I've got :
** Copy File: Create Directory failed - Error 183
** Directory = \\192.168.1.111\Cy$\Temp\opsm
Created directory \\192.168.1.112\Cy$\Temp\opsm
Could not copy file to other nodes [error = 183]
I've read metalink Note 186130.1 Clustercheck Fails with Windows Error 183 and the only
proof I haven't done is get the clustercheck.exe release1(9.0.1).
Any suggestion will be very appreciated.Thanks,
Isabel

How to install ebs r12.1 with rac

Hi Team,
Anyone can help me how to do fresh installation of oracle apps r12 with rac database on linux.I have done oracle apps installation with single database.Can anyone can provide me the step by step (or) documents.Please help me out.

user10721329 wrote:
Hi Team,
Anyone can help me how to do fresh installation of oracle apps r12 with rac database on linux.I have done oracle apps installation with single database.Can anyone can provide me the step by step (or) documents.Please help me out.You can't do a fresh installation of 12.1.1 with RAC database and you will need to install R12 with single instance then convert to RAC.
Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 12 [ID 823587.1]
Using Oracle 11g Release 1 (11.1.0.7) Real Application Clusters and Automatic Storage Management with Oracle E-Business Suite Release 12 [ID 466649.1]
Oracle E-Business Suite Release 12 High Availability Documentation Roadmap [ID 1072636.1]
Thanks,
Hussein

Configure SOA/BAM with RAC database

Hi,
We've configured SOA Cluster 11.1.1.3 with RAC database 11.1.7. For thiis we've create RAC multi datasources and the JDBC details of these datasources are as under:
Datasource name: SOA-RAC-1
=====================
jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=host-1-vip.domain.com)(PORT=15715)))(CONNECT_DATA=(SERVICE_NAME=SID.DOMAIN.COM)(INSTANCE_NAME=SID1)))
Datasource Name: SOA-RAC-2
jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=host-2-vip.domain.com)(PORT=15715)))(CONNECT_DATA=(SERVICE_NAME=SID.DOMAIN.COM)(INSTANCE_NAME=SID2)))
Multi Datasource=rac1 & rac-2
Everything is up and running, but when we are testing it by stopping one of the ndoe fo RAC (Say Node-1) and starting the managed server we are getting following error:
<Nov 15, 2010 2:22:05 AM CST> <Error> <Deployer> <BEA-149205> <Failed to initialize the application 'leasing-rac0-jdbc' due to error weblogic.application.ModuleException: .
weblogic.application.ModuleException:
at weblogic.jdbc.module.JDBCModule.prepare(JDBCModule.java:290)
at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:199)
at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:508)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:41)
at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:149)
Truncated. see log file for complete stacktrace
===========================================
<Nov 15, 2010 2:22:31 AM CST> <Warning> <JDBC> <BEA-001129> <Received exception while creating connection for pool "OraSDPMDataSource-rac0": Listener refused the connection with the following error:
ORA-12521, TNS:listener does not currently know of instance requested in connect descriptor
>
<Nov 15, 2010 2:22:33 AM CST> <Warning> <JDBC> <BEA-001129> <Received exception while creating connection for pool "BAMDataSource-rac0": Listener refused the connection with the following error:
ORA-12521, TNS:listener does not currently know of instance requested in connect descriptor
>
<Nov 15, 2010 2:22:36 AM CST> <Warning> <JDBC> <BEA-001129> <Received exception while creating connection for pool "BAMDataSource-rac0": Listener refused the connection with the following error:
ORA-12521, TNS:listener does not currently know of instance requested in connect descriptor
>
<Nov 15, 2010 2:22:36 AM CST> <Warning> <JDBC> <BEA-001129> <Received exception while creating connection for pool "OraSDPMDataSource-rac0": Listener refused the connection with the following error:
ORA-12521, TNS:listener does not currently know of instance requested in connect descriptor
>
<Nov 15, 2010 2:22:37 AM CST> <Warning> <JNDI> <BEA-050007> <An attempt was made to look up non-versioned global resource "topic.oracle.bam.messaging" from an application version "oracle-bam [Version=11.1.1]". This can potentially cause conflict of the global resource usages among multiple application versions.>
<Nov 15, 2010 2:22:38 AM CST> <Notice> <Log Management> <BEA-170027> <The Server has established connection with the Domain level Diagnostic Service successfully.>
<Nov 15, 2010 2:22:38 AM CST> <Warning> <JDBC> <BEA-001129> <Received exception while creating connection for pool "mds-owsm-rac0": Listener refused the connection with the following error:
ORA-12521, TNS:listener does not currently know of instance requested in connect descriptor
>
And managed server goes to admin mode. Its with both SOA and BAM servers.
Please let me know if someone has come across this error or is there anything I am missing while configuring the multi datasource.
Thanks,
Suraj Sharma

Hi Suraj,
even i am facing the same issue, were you able to resolve this issue?
Thanks,
Deepa

Fresh Instalation of Oracle E-bussiness suite with RAC database

Hi,
Could you pls give me a high level overview steps for Fresh Installation of E-Bussines suite 11i/R12 with RAC database?
Thanks
John

RapidWiz does not have the feature of installing Oracle Apps 11i/R12 with RAC. Refer to the following links for more details about the installation steps.
11i (11.5.10.2+ virtual) Documentation Library
http://download-uk.oracle.com/docs/cd/B25516_14/current/html/docset.html
Release 12.0.4 Documentation Library
http://download.oracle.com/docs/cd/B40089_09/current/html/docset.html
For RAC configuration, depending on your application/database version, please refer to the following note (All relevant notes/documents for configuring 11i/R12 with 9i/10g/11g RAC database are listed in this note):
Note: 745759.1 - Oracle E-Business Suite and Oracle Real Application Clusters Documentation Roadmap
https://metalink2.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=745759.1

PRD with RAC and DR with non-rac datagaurd

Is it possible to implement production with RAC database and DR with non-rac datagaurd.
if yes, how does the log shipping happening from different nodes of RAC to one DR node?
Can anybody answer please?
Thanks
Vignesh.

There is also a very good MAA whitepaper on this szenario:
MAA 10g Setup Guide: Creating a Single Instance Physical Standby Database for a RAC Primary Database
http://www.oracle.com/technology/deploy/availability/pdf/MAA_WP_10g_RACPrimarySingleInstancePhysicalStandby.pdf

BRM installation failing with RAC (pin_setup.values)

Hello,
i'm currently trying to install BRM using a RAC 11gR2 database, i've already configured a localservice pointing to the scan listener, tested it using tnsping as well as sqlplus was able to connect in both cases, however when i try to run the pin_setup script it fails as it can't connect to MAIN_DB which I have configured as follows
$MAIN_DB{'vendor'} = "oracle";
$MAIN_DB{'alias'} = "rac";
$MAIN_DB{'user'} = "pin";
$MAIN_DB{'password'} = "&aes|03|0D5E11BFDD97D2769D9B0DBFBD1BBF7EC34E38A57801EE7CDF27D885C3EF9FFAFA";
$MAIN_DB{'Database'} = "RAC"; #"pindb";
$MAIN_DB{'Host'} = "clusterscan.eg.oracle.com";#"$HOSTNAME";
$MAIN_DB{'version'} = "11g";
$MAIN_DB{'tables_group'} = "dbmt7t_pin";
$MAIN_DB{'indexes_group'} = "dbmt7t_pinx";
$MAIN_DB{'storage_model'} = "Small";
$MAIN_DB{'system_user'} = "system";
$MAIN_DB{'system_password'} = "&aes|00|0D5E11BFDD97D2769D9B0DBFBD1BBF7E7212D39DFC91E91640DCF63ABD0BCFC66B";
The question here is how to configure pin_setup.values for rac? i wonder if any body has an example of a working pin_Setup.values file that actually works with RAC?

Solution: (search in support.oracle.com). It worked!
This solution action plan applies to the shell csh, but very similar steps can be taken for other types of shells:
echo $SHELL
/usr/bin/csh
identify the $ORACLE_HOME directory
echo $ORACLE_HOME
set the following environment variable according to the $ORACLE_HOME directory, as described in the product installation documentation:
setenv PATH .......
setenv LD_LIBRARY_PATH ......
make sure that
the $ORACLE_HOME/lib is included in $LD_LIBRARY_PATH
the $ORACLE_HOME/bin is included in $PATH

How to configue RBDMSAuthenticator with RAC

Hey guys,
We are using an Oracle 9i RAC setup for our Profile Database. Our authentication also needs to be done via oracle.
Now we have two nodes in the RAC setup.
I have tried searching but have got nothing on how to setup an RDBMSAuthenticator with RAC.
Pls help.
Thanks,
Nikhil

Hi;
>
I am having R12.1.1 with 11g R2 RAC database.
My question is
Is it ok to apply adpatch with RAC Instances up and Running (on bothn Nodes). won't it create any locking / performnce issue?
(or)
is it safe to bering down one of the RAC Instance while applying adpatch
(or)
do we need to start the RAC database with cluster_database=false and start only one instance and then apply adpatch
The adpatch could be normal bug patch (or) maintenance patch like r12.1.3 patch.
Please suggest for better performnce and no locks issueI belive, You are talking about here application patch so its not affect RAC database as you imagine. Just follow readme part of patch and do all process on application tier not on dbtier.
If you are mention database patch than you should check readme part again.Its mention there how you can apply RAC patch wiht steps
Regard
Helios

Some experiences with an antivirus with RAC on Linux ?

Hi all,
Does someone has already have an experience with an antivirus on the DB server with RAC on Linux ?
Thx by advance,
Fred

Antivirus on linux : http://www.openantivirus.org/projects.php

R12 with RAC - Failover

Hi,
Is it possible to have r12 Single Application tier with two node RAC database tier ?
Suppose if i have a 2 node rac and Node1 goes down, which of the following application services can fail over ( or say connect ) to second node.
1. self service application
2. Forms applicaton ?
3. CM
Can this happend dynamically or do i need to restart the application services ?
Is it manadatory to have multiple applications node if we have RAC at the backend ?

Hi,
You can implement RAC with single application tier node.
It is not mandatory to have multiple application nodes with RAC, but it is recommended (in terms of performance and availability).
I believe all your questions are answered in the following document.
Note: 388577.1 - Using Oracle 10g Release 2 Real Application Clusters and Automatic Storage Management with Oracle E-Business Suite Release 12
https://metalink2.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=388577.1
Regards,
Hussein

Migrate Apps11.5.9 in Windows to SuseLinux with RAC DB

Please help me with the steps to migrate Apps11.5.9 in Windows to SuseLinux with RAC Database.

Hi user475162,
The best method to migrate the AppsTier from windows to Solaris can be found in the following note:
Note:238276.1 - Migrating to Linux with Oracle Applications Release 11i
The above note can also be used for Solaris.
Also be sure the Solaris system have the prereqs installed as listed in :
Note:234781.1 - Oracle Applications 11.5.9 - Installation Update Notes for Solaris Operating System (SPARC) - B10847-01
Using this note you be sure the file version will be exactly the same as the windows machine.
The database needs to be moved using the export/import note as already suggested
Have Fun!
KAR

ISQLPlus on EM with RAC

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