Max Connections to Oracle 10g RAC Instance

Hi,
We have IBM Websphere Application Server on one unix server which is connecting to a Oracle 10g RAC Instance which is on a different unix server through JDBC connection. They(Application Team) are doing stress tests, please tell me how many connections can a Oracle Database Allow simultaneously. They tested for 2000 connections simultaneously. It failed...This is urgent, they are on call please reply ASAP
Thanks,

Use Oracle Shared Server (the default is Dedicated Server),
I've shown JBOSS app developers how a little Dell desktop (256MB RAM, 1.7Ghz P4) can accept a 1000 app server connections (using Shared Server). While a big HP-UX server failed to accept 200 connections (using Dedicated Server).
Oracle RAC should easily be able to handle 100+ concurrent client OLTP connections per RAC node using Shared Server - assuming that each of the concurrent sessions are actually doing stuff and not just sitting there idle. (if 99.99% of the connections are idle, then even a little desktop Oracle database can handle well over a 1000)
Bottomline - you must have your primary focus and expertise on Oracle. On the the data tier. Not the app tier. The data tier is what scales the app tier. Not vice versa. Adding an extra app tier server does not enable the data tier platform to suddenly be able to run more SQLs, The app tier does not scale the data tier.
If you want performance and scalability, you must get the data tier right. App tier be damned as that is neither here nor there ito performance and scalability. This means Oracle expertise is required first and foremost.

Similar Messages

Memory Leak when TOMCAT connects to Oracle 10g RAC using JDBC Thin driver.

We had experienced Memory leak when a Oracle 10g (10.2.0.3) RAC node was evicted. TOMCAT app server is connecting to the Oracle 10g RAC database instances using JDBC 10.2.0.3 thin driver.
Anyone had similar experience?
Any ideas? Any bugs reported/fixed?
Thanks,
Raj

If you're doing XA, we absolutely do not support
driver-level load-balancing OR failover. Use neither.
For non-XA, you can use driver-level failover. For
non-XA, you could set load-balancing, but it won't
help because we get connections from the driver,
and keep them indefinitely, so the driver never gets
the chance to affect which connections the pool
uses after that.

JDBC connection to Oracle 10g RAC periodically times out

I've been banging my head against the wall for months now and can't figure out why this is and what's causing it.
We have 6x CF8 servers in our environment. 3 of which work perfectly and the other 3 have the following problem. All 6 machines were installed at the same time and followed the exact same installation plan.
When I configure Oracle RAC data source, some of the machines time-out connecting to Oracle from time-to-time.
Config:
Solaris 9 on both CF and Oracle
CF8 Enterprise with the latest updater.
Apache 2 (not that it's relevant)
6 machines, load-balanced (not clustered), identical install and configuration.
data source config:
JDBC URL: jdbc:macromedia:oracle://10.0.0.3:1521;serviceName=dbname.ourdomain.com;AlternateServers= (10.0.0.4:1521);LoadBalancing=true
DRIVER CLASS: macromedia.jdbc.MacromediaDriver
The problem:
Every few minutes, CF starts hanging requests that deal with a specific RAC only data source. After about 30 seconds, all requests bail and generate this error in cfserver.log:
A non-SQL error occurred while requesting a connection from dbsource.
Timed out trying to establish connection
This happens with any RAC data source on the "bad" servers while the "good" servers don't have this problem. The "bad" server doesn't have any problems with direct (non-rac) Oracle data source.
Already tried:
Moving server connections around on a switch (rulling out bad switch port)
Copying driver from the healthy server (but it's the same installer anyway)
Changed from RAC to normal Oracle type data source - works perfectly. So at the moment I have 3 servers connecting to a specific oracle instance and the other 3 connecting to RAC.
Tried googling and searching forums and even Oracle metalink - nothing I could see relevant to this.
It's a shame that after spending a ton of money on CF8 upgrades and Oracle RAC, we can't really utilize fail-over on the database connection.
Any takers?
Thanks,
Henry

I have the following in my CLASSPATH:
C:\Ora10g1\product\10.2.0\db_1\jdbc\lib\jdbc.jar;
C:\Ora10g1\product\10.2.0\db_1\jdbc\lib\ojdbc14.jar;
C:\Ora10g1\product\10.2.0\db_1\jlib\jndi.jar;
C:\Ora10g1\product\10.2.0\db_1\jlib\orai18n.jar;
Still 'Cannot find type 'oracle.jdbc.pool.OracleDataSource'
Thanks

Max connections in Oracle 10g Express

Hi,
How much connections are possible in Oracle 10g Express ?

I do the following test:
I format the test PC, install the O.S. and install Oracle 10g Express and run the following code:
package testedb;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class TesteDB {
     * @param args
     public static void main(String[] args) {
          List<Connection> connections = new ArrayList<Connection>();
          try
     Class.forName ("oracle.jdbc.driver.OracleDriver");
     while(true)
          connections.add(DriverManager.getConnection("jdbc:oracle:thin:@albatroz:1521:XE", "system", "xxx"));
          //connections.add(DriverManager.getConnection("jdbc:oracle:thin:@albatroz:1521:MYDB", "system", "xxx"));
          System.out.println("connections: "+connections.size());
     catch (ClassNotFoundException e)
     System.out.println ("Could not load the driver");
     e.printStackTrace ();
     } catch (SQLException e) {
          System.out.println("----------------------------------------------------------");
               System.out.println("Qtd of connections: "+connections.size());
               System.out.println("----------------------------------------------------------");
               e.printStackTrace();
After the first test I format again the PC, install the O.S. and install Oracle 10g Standard and run the same code, changing only the database name.
Well, I get the following results:
- Oracle 10g Express: I get 19 connections;
- Oracle 10g Standard: I get 181 connection;
Final report:
With the same hardware (1GB RAM) and O.S. (Windows XP Professional) test, the Oracle 10g Express has any restrictions at the question max connections.
Message was edited by: Hugo Haas
Hugo Haas

SC 3.1 and Oracle 10g RAC: instance goes down when rebooting other node

I have Sun cluster 3.1 with Oracle 10gR2 on Solaris 10 Sparc. Thanks to this forum now that my cluster seems fine with a database running. However I still have one problem: when I reboot node1, the instance on node2 also disappears. The instance on the node2 will make itself alive once node1 comes back. This happens also for the instance on node1 if I reboot node2.
The interconnect cables are direct cross-over cable.
Any input is appreciated,
Luke

Although I am not TIm I can anticipate his answer, as he gave it 3 topics back in this forum. You cannot mount UFS on top of shared SVM. It does not work as you can see with your own configuration. The only shared filesystem that works for RAC is shared QFS. The doc
http://docs.sun.com/app/docs/doc/819-0583/6n30h62v7?a=view
has all the details.
If you need a shared filesystem for your binaries or whatever, you have to use UFS/PxFS but that sits on top of normal SVM and not shared SVM.
Hartmut

Oracle 10g rac ora-01092 oracle instance terminated disconnection forced

hi
I am getting following error on 2 node RAC (on NFS mount point )
oracle 10g rac ora-01092 oracle instance terminated disconnection forced
br
anuj singh

Anju,
Its really very difficult to tell you what exactly went wrong with the limited information given by you. Did you check the alert log and other cluster (crsd and cssd ) logs? If not, I would strongly recommend you to pay attention to these logs for any clue.
Jaffar

Regarding Services in Oracle 10g RAC

Hi All,
We are having Oracle 10g RAC (10.2) on Linux machines. We don't have any services configured failover. This can be visible from srvctl config database -d, as nothing related services information is displayed.
I even checked failover_type and Failover_method from GV$session and for all it's showing None. We have only default database service (same as database name).
My question is:
Can I modify/configure this default service as failover/loadbalance enabled using srvctl? If so, please let me know.
PS: I can't provide any output here as our client network doesn't permit copying.
Regads,
Kumar

Hi,
THank you for your inputs. Below is the configurations settings of my environment.
Client Side TNS Entry:
jdbc:oracle:thin:@(DESCRIPTION = (LOAD_BALANCE=on) (FAILOVER=on) (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac2)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = prod) (SERVER = DEDICATED) (FAILOVER_MODE= (TYPE=SELECT) (METHOD=PRECONNECT))))
Below are the tns and listener details for both servers eb1-db-svr and eb1-db-bck-svr and both instances have remote_listener as “LISTENERS_PROD”
eb1-db-svr-bck# lsnrctl status LISTENER_EB1-DB-SVR-BCK
LSNRCTL for Solaris: Version 10.2.0.4.0 - Production on 06-DEC-2013 11:27:20
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=eb1-db-svr-bck-rac)(PORT=1521)(IP=FIRST)))
STATUS of the LISTENER
Alias                     LISTENER_EB1-DB-SVR-BCK
Version                   TNSLSNR for Solaris: Version 10.2.0.4.0 - Production
Start Date                19-OCT-2013 14:21:18
Uptime                    47 days 22 hr. 6 min. 2 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /oracle/app/oracle/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File         /oracle/app/oracle/product/10.2.0/db_1/network/log/listener_eb1-db-svr-bck.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.207.195.31)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.207.195.35)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status BLOCKED, has 1 handler(s) for this service...
Service "+ASM_XPT" has 1 instance(s).
Instance "+ASM2", status BLOCKED, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PROD" has 2 instance(s).
Instance "PROD1", status READY, has 1 handler(s) for this service...    ---> SHOWING TWO SERVICES ON NODE2
Instance "PROD2", status READY, has 2 handler(s) for this service...
Service "PROD_XPT" has 2 instance(s).
Instance "PROD1", status READY, has 1 handler(s) for this service...
Instance "PROD2", status READY, has 2 handler(s) for this service...
The command completed successfully
eb1-db-svr# lsnrctl status LISTENER_EB1-DB-SVR
LSNRCTL for Solaris: Version 10.2.0.4.0 - Production on 06-DEC-2013 11:24:42
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=eb1-db-svr-rac)(PORT=1521)(IP=FIRST)))
STATUS of the LISTENER
Alias                     LISTENER_EB1-DB-SVR
Version                   TNSLSNR for Solaris: Version 10.2.0.4.0 - Production
Start Date                25-NOV-2013 20:43:08
Uptime                    10 days 14 hr. 41 min. 34 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /oracle/app/oracle/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File         /oracle/app/oracle/product/10.2.0/db_1/network/log/listener_eb1-db-svr.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.207.195.30)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.207.195.32)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status BLOCKED, has 1 handler(s) for this service...
Service "+ASM_XPT" has 1 instance(s).
Instance "+ASM1", status BLOCKED, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PROD" has 1 instance(s).
Instance "PROD1", status READY, has 2 handler(s) for this service...   --> SHOWS ONLY ONE HANDLER FOR THIS
Service "PROD_XPT" has 1 instance(s).
Instance "PROD1", status READY, has 2 handler(s) for this service...
The command completed successfully
eb1-db-svr# cat listener.ora
# listener.ora.eb1-db-svr Network Configuration File: /oracle/app/oracle/product/10.2.0/db_1/network/admin/listener.ora.eb1-db-svr
# Generated by Oracle configuration tools.
SID_LIST_LISTENER_EB1-DB-SVR =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /oracle/app/oracle/product/10.2.0/db_1)
      (PROGRAM = extproc)
LISTENER_EB1-DB-SVR =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521)(IP = FIRST))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.207.195.32)(PORT = 1521)(IP = FIRST))
eb1-db-svr# cat tnsnames.ora
# tnsnames.ora Network Configuration File: /oracle/app/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
LISTENERS_PROD =
(ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-bck-rac)(PORT = 1521))
PROD =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-bck-rac)(PORT = 1521))
    (LOAD_BALANCE = yes)
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = PROD)
PROD2 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-bck-rac)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = PROD)
      (INSTANCE_NAME = PROD2)
PROD1 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = PROD)
      (INSTANCE_NAME = PROD1)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
eb1-db-svr-bck# cat listener.ora
# listener.ora.eb1-db-svr-bck Network Configuration File: /oracle/app/oracle/product/10.2.0/db_1/network/admin/listener.ora.eb1-db-svr-bck
# Generated by Oracle configuration tools.
SID_LIST_LISTENER_EB1-DB-SVR-BCK =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /oracle/app/oracle/product/10.2.0/db_1)
      (PROGRAM = extproc)
LISTENER_EB1-DB-SVR-BCK =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-bck-rac)(PORT = 1521)(IP = FIRST))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.207.195.35)(PORT = 1521)(IP = FIRST))
eb1-db-svr-bck# cat tnsnames.ora
# tnsnames.ora Network Configuration File: /oracle/app/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
LISTENERS_PROD =
(ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-bck-rac)(PORT = 1521))
PROD =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-bck-rac)(PORT = 1521))
    (LOAD_BALANCE = yes)
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = PROD)
PROD2 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-bck-rac)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = PROD)
      (INSTANCE_NAME = PROD2)
PROD1 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = eb1-db-svr-rac)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = PROD)
      (INSTANCE_NAME = PROD1)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)

Oracle 10g RAC installation on HP-UX 11.31 for SAP ERP 6.04

Dear experts,
We are trying to install SAP ERP 6.0 EHP4 with Oracle 10g RAC on HP-UX 11.31. Please note that, We are using VERITAS cluster filesystem (CFS) for this purpose and not HP-UX ServiceGuard ClusterFileSystem.
*As per SAP procedure, we have installaed plain plain SAP system with single instance Oracle (ref: Configuration of SAP NetWeaver for Oracle Database 10gRAC guide). Now we are first trying to install Oracle Clusterware (CRS) and then we will install Oracle RAC software. Is this procedure right?*
Which file (and its path) we have to use for CRS installation and its patch? Is it runInstaller under /oracle/stage/102_64/clusterware? With this file we can install CRS 10.2.0.1. Similarly for Oracle RAC, which files we are supposed to use, i.e for installation and patch upgrade?
Also can we use clusterware package available from Oracle directly in the SAP environment?
We tried to install CRS with runInstaller while running Configuration Assistant after root.sh script.
The following commands are failing in Configuration Assistant:
/oracle/CRS/102_64/bin/racgons add_config erpprdd1:4948 erpprdd2:4948
/oracle/CRS/102_64/bin/oifcfg setif -global lan1/20.20.20.0:cluster_interconnect lan0/192.168.3.0:public
/oracle/CRS/102_64/bin/cluvfy stage -post crsinst -n erpprdd1,erpprdd2
1st command does not give any output if run manually.
2nd commands o/p: PRIF-12: failed to initialize cluster support services
3rd commands fails in every check
Please suggest the solution and expecting answers to the above mentioned questions.
Thanks & Regards,
Tejas

>
Charles Yu wrote:
> Q1: Oracle RAC with 9.2.x on HP-UX?
> A: For HA environment, cluster software is: MC/SG on HP-UX 11.31; there are optional components of MC/SG for supporting Oracle RAC and SAP application. I was confused that I could not find the installation guide regarding 4.6C on MC/SG HA environment of HP-UX.
> Charles
Relevant docs for Service Guard (SG) cluster are available at http://docs.hp.com. Hope you have checked for the suport of oracle 92x on HP-UX 11.31
>
Charles Yu wrote:
> Q2: Any reason why you don't use a supported database version?
> A: Actually, in order to avoiding the the risk of database upgrade and minimizing the migration risk, top level has decided that keeping the same Oracle version. Indeed, we don't plan the migration of application. On the other hand, it is complicated to do the assessment for application migration.
> Charles
You can go for combined os migration and db release upgrade also at a stretch with the same downtime.

Oracle 10G RAC - Public & Heartbeat on 1 NIC

Hello all,
actually I am installing Oracle 10G RAC on rhel 4 (4 node cluster). But the Cluster Verification Utility aborts with errors. I checked the configToolAllCommands and tried to run the failed commands manually:
#/opt/oracle/crs/bin/oifcfg setif -global eth0.100/172.18.0.0:cluster_interconnect eth0.728/172.16.128.0:public eth0.498/172.17.1.0:cluster_interconnect
PRIF-50: duplicate interface is given in the input
PRIF-50: duplicate interface is given in the input
PRIF-50: duplicate interface is given in the input
Question:
Is it possible to put Public & Heartbeat on one NIC (eth0.728 & eth0.498)
If not is their any workaround for that issue?
Output /etc/hosts
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
172.18.253.48 eu0266.[company].net cfmaster
172.16.128.11 eu0200.[company].net eu0200
172.16.128.12 eu0201.[company].net eu0201
172.16.128.13 eu0202.[company].net eu0202
172.16.128.14 eu0203.[company].net eu0203
172.18.13.11 eu0200m.[company].net eu0200m
172.18.13.12 eu0201m.[company].net eu0201m
172.18.13.13 eu0202m.[company].net eu0202m
172.18.13.14 eu0203m.[company].net eu0203m
# Private section
172.17.1.11 eu0200-priv.[company].net eu0200-priv
172.17.1.12 eu0201-priv.[company].net eu0201-priv
172.17.1.13 eu0202-priv.[company].net eu0202-priv
172.17.1.14 eu0203-priv.[company].net eu0203-priv
# Virtual section
172.16.128.16 eu0200-vip.[company].net eu0200-vip
172.16.128.17 eu0201-vip.l[company].net eu0201-vip
172.16.128.18 eu0202-vip.[company].net eu0202-vip
172.16.128.19 eu0203-vip.[company].net eu0203-vip
Output install log:
Checking existence of VIP node application (required)
Check failed.
Check failed on nodes:
eu0203,eu0202,eu0201,eu0200
Checking existence of ONS node application (optional)
Check ignored.
Checking existence of GSD node application (optional)
Check ignored.
Post-check for cluster services setup was unsuccessful on all the nodes.
Command = /opt/[company]/oracle/crs/bin/cluvfy has failed
INFO: Configuration assistant "Oracle Cluster Verification Utility" failed
*** Starting OUICA ***
Oracle Home set to /opt/[company]/oracle/crs
Configuration directory is set to /opt/[company]/oracle/crs/cfgtoollogs. All xml files under the directory will be processed
INFO: The "/opt/[company]/oracle/crs/cfgtoollogs/configToolFailedCommands" script contains all commands that failed, were skipped or were cancelled. This file may be used to run these configuration assistants outside of OUI. Note that you may have to update this script with passwords (if any) before executing the same.
SEVERE: OUI-25031:Some of the configuration assistants failed. It is strongly recommended that you retry the configuration assistants at this time. Not successfully running any "Recommended" assistants means your system will not be correctly configured.
1. Check the Details panel on the Configuration Assistant Screen to see the errors resulting in the failures.
2. Fix the errors causing these failures.
3. Select the failed assistants and click the 'Retry' button to retry them.
Thanks in advance for your help!
Regards

Tads wrote:
Hi all,
I have a question about Oracle RAC and network interface.
We're using Oracle 10gR2 RAC with two nodes on Linux Red Hat.
Let's assume that the public network interface goes down.
I would like to know what happens with existing connections
on node with network interface with problems.
Are connections frozen, actives?
Can the users continue to use theses existing connections using the another node of RAC?If the interface is down? what do you think? All connections to this node will die. How does your application handle fail-over, does it attempt to reconnect or just have a complete application failure?
You should spend some time in a test lab where you can test this stuff for yourself. Read the documentation and there are tons of sites out there that purport to have all of your RAC/TAF/FAN/FAF questions. - I would read and trust the documentation first.
>
I know that the listener goes down and any other connections is allowed.
Thank you very much!!!!

Create a new user for oracle 10G ASM instance with sysdba system privilege

Hi,
In our Golden Gate Project, we require the SYS user credential to connect to the Oracle 10g ASM instance to read the database transaction logs.But our client is not providing the SYS user credential to connnect to ASM instance.
I'm getting the error message "ORA-01109: database not open",When I tried to create a new user using the below the steps in oracle 10g ASM instance
1. Login using "sqlplus / as sysdba"
2. Create user <username> identified by <password>;
But in oracle 11g ASM instance, I'm able to create new user by connecting the ASM instance with SYSASM role without issues.
Is there is any workaround to create a new user with sysdba system privilege in oracle 10g ASM instance?.
Thanks in advance .

Hi,
Recreate the password file for the ASM instance as follows:
Unix:
orapwd file=<ORACLE_HOME>/dbs/PWD<SID> password=<sys_password>
Windows:
orapwd file=<ORACLE_HOME>/database/PWD<SID>.ora password=<sys_password>
Now sys password is reset, we are ready to use sys for ASM management. I decided to create another user ASMDBA as I tried above.
SQL> create user ASMDBA identified by test01;
User created.
SQL> grant SYSASM, SYSOPER to ASMDBA;
Grant succeeded.
SQL> select * from v$pwfile_users;
USERNAME SYSDBA SYSOPE SYSASM
SYS TRUE TRUE TRUE
ASMDBA FALSE TRUE TRUE
Please see this link : http://orachat.com/how-to-change-asm-sys-password-creating-sysasm-user-11g/
Thank you

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 .....

Problem with Oracle 10g RAC VIP network setting at Solaris 9

Dear All,
I have tried to set up a Oracle 10g RAC Release 2.
With OS solaris 9, and 2 nodes.
The nodes setting as the following:
nodes 1:
Public address: 172.16.0.121
Private address: 192.168.0.121, 192.168.1.121 (dual path for heart beat)
nodes 2:
Public address: 172.16.0.122
Private address: 192.168.0.122, 192.168.1.122
And i have assigned two IP adress 172.16.0.131, 172.16.0.132 as the VIP address for the
RAC.
And the following is the /etc/hosts file:
root@shk01 # cat /etc/hosts
# Internet host table
127.0.0.1 localhost
# public address
172.16.0.121 shk01 loghost
172.16.0.122 shk02
# heart beat
192.168.0.121 shk01-priv1
192.168.1.121 shk01-priv2
192.168.0.122 shk02-priv1
192.168.1.122 shk02-priv2
# VIP address
172.16.1.131 vip-shk01
172.16.1.132 vip-shk02
But when i run the command "$ ./runcluvfy.sh comp nodecon -n shk01,shk02 -verbose"
it shows the error:
ERROR:
Could not find a suitable set of interfaces for VIPs.
Result: Node connectivity check failed.
I did try to add the VIP address on bge0:1, as i using bge0 for the public address.
Both nodes i did using the same interface name for it.
Anyone have idea for me to check out the error?
Also, I have other question about the raw device.
As there is option for setting for ASM or raw device. If choosing raw device, does it mean that it just need to
format the storage disk but without newfs it? And then the Oracle program will able to handle it?
Thanks,
Xentar

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
---

Problem to connect between Oracle 10g xe and VB2010 at Vista sp2

Introduction
Hi guys, good day... NEED RESCUE!! SOS!! Hmm.. i have trouble been 1 weeks trying connect between Oracle 10g xe and VB2010 on window vista sp2. Actaully im very new at Oracle 10g xe and VB2010 but i got a project is going to build up system database and i figure out Oracle 10g xe and VB2010 can use free so i just chows these appication to be my project. I been search around internet and there is several things i was found about the connection but i has try and tried still it wont work out.
Things i found and learned
Oracle
1. I have download Oracle 10g XE and installed in my windows vista sp2.
2. I notice the Oracle Developer Tools is needed for VB2010 (To add reference 'Oracle.DataAccess'). So i was downloaded ODT11beta and installed
3. I also edit TNSNAMES to following below:
OraDb =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = shin-PC)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
4. My sqlnet like following below:
SQLNET.AUTHENTICATION_SERVICES = (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
5.I have try tnsping OraDB and its works.
6. I monitoring task manager and OracleServicesXE is running.
7. ora_dba is added in Group.
Problem in SQLPLUS
When i try connect SQLPLUS in cmd i get ERROR: ORA-12560: TNS:protocol adapter error.
i . In cmd i type sqlplus and enter then i been ask for username and password.
ii. After i insert my username and password and enter then i get the error of ORA-12560.
Visual Basic 2010
1. First i created my project, drawing label and button for test connection.
2. Then, i add reference Oracle.DataAccess into my project.
3. I type following script into my vb form:
Imports System.Data
Imports Oracle.DataAccess.Client
Imports Oracle.DataAccess.Types
Public Class Logon
Private Sub cmdLogon_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdLogon.Click
Dim oradb As String = "Data Source = OraDb; User Id = system; Password = shin;"
Dim conn As New OracleConnection(oradb)
conn.Open()
Dim cmd As New OracleCommand
cmd.Connection = conn
cmd.CommandText = "select SName from Staff where SName = shin"
cmd.CommandType = CommandType.Text
Dim dr As OracleDataReader = cmd.ExecuteReader()
dr.Read()
lblOra.Text = dr.Item("SName")
conn.Dispose()
End Sub
End Class
Problem in VB2010
When i run my project and press the button i get error message ORA-12514: TNS:could not resolve the connect identifier specified at conn.Open()
Extra Question*
1. Im notice in my netbook xp home sp2, before i install ODT11beta my sqlplus look fine thought cmd but after i installed ODT11beta its same problem with my Vista sp2 now. Get error ORA-12560: TNS:protocol adapter error :( I tried uninstall ODT11beta again and restart its work fine again. Which i really dun understand. Izzit the version ODT11 is not suitable for 10g xe? And i dunno this problem is related with my connection between oracle 10g xe and vb2010 or not. So confuse@@
2. I wish to know more about connect between Oracle and VB, is there still a things i miss?(I mean steps or configuration that should i done)
3. Or i just lower my VB version could make more easy? If yes, what version VB should i use that could work out with oracle 10g xe?
4. Sorry for too bad my english but i really wish somebody could help me. Please try to understand my written or you could ask me mean if dont understand. Im stuck!! Stuck feel not really that good.....
Edited by: user9173084 on Jul 19, 2010 3:34 AM

Huhu..
Yo, henry
I thought the OraDb is just a name for entry but im not sure it is a service. I was refer http://www.oracle.com/technology/pub/articles/cook-vs08.html at topic Connection Strings and Objects.
Here is my lsnrctl service
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOW has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOW has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "XEXDB" has 1 instance(s).
Instance "xe", status READY has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 state:ready
DISPATCHER <machine: SHIN-PC, pid: 1932>
(ADDRESS=(PROTOCOL=tcp)(HOST=shin-pc)(PORT=49158))
Service "XE_XPT" has 1 instance(s).
Instance "xe", status READY has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
Service "xe" has 1 instance(s).
Instance "xe", status READY has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
The command completed successfully
Izzit ok? I notice there is no listed OraDb. but tnsping OraDb seem fine.
Actually there is somethings as a newbie i wondering long time alreadly ><
1. The origin of tnsname.ora is no OraDb or ORCL but i just simple add it by open tnsname.ora with notepad. Im just not sure it is function or not.
Also please check at my TNSNAME.ORA:
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = shin-PC)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
OraDb =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = shin-PC)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
I got the feeling there is so close~~~!!!

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
---

Job Scheduling on Oracle 10g RAC

Hi,
If I want to run job on Oracle 10g RAC database having 2 instances suppose n1 and n2 separately and both instances are working/using same Service Name then how could i do this ??
or how to use SID instead of Service Name in Job Class ???
Please guide..... Replay awaited...........

Priyanka,
If you are a newcomer to the DBA, I would strongly suggest to invest at least time(if not money for training) in reading documentation related to fields in which you are working. For RAC, this should be a good start( V10.2) ,
http://download.oracle.com/docs/cd/B19306_01/rac.102/b14197/toc.htm
can we use these dynamic views in Procedure The counter question is, why? What exactly are you trying to accomplish? If you can tell us this, there may be a better way we may suggest doing that thing?
Aman....

Max Connections to Oracle 10g RAC Instance

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