Oracle concepts - SID / instance / service / listener / dispatcher ....

Hello,
Newbie, conceptual question, please bear with me.
Suppose I have a Oracle database server that runs a single database / instance / SID. The server has 2 LAN cards and 2 IP addresses - 192.168.1.1 and 192.168.2.1.
I wish the users to be able to connect on both IP addresses. Further, I wish two TCP ports to be available for connections - 1521 and 1531. Hence we have a total of 4 possible IP address / TCP port pairs.
My queries -
- first of all, is this a valid, do-able scenario ?
- how many services do we have, one or four ? How many listeners ? How many dispatchers ?
- what would the IP address / TCP port combination be called in this case ? can I apply different priorities on each of these pairs ?
Regards
Edited by: user1050017 on Apr 18, 2012 1:02 AM

Welcome to OTN!
user1050017 wrote:
- first of all, is this a valid, do-able scenario ?Yes
- how many services do we have, one or four ? How many listeners ? How many dispatchers ?one listener
- what would the IP address / TCP port combination be called in this case ? can I apply different priorities on each of these pairs ?In this case you must use hostname in listener.ora, not an IP

Similar Messages

Oracle service, Listener and http server does not start automatically

Hello,
I have Oracle 9i release 2 installed on Unix HP box if system restart in case of power failure the Oracle service, Listener and http server does not start automatically, is there any ready reference available to check what's wrong is happening(I don't have knowledge of Unix).
Thanks, Khawar.

Hi Rajesh,
Thanks for reply, I will check this link and will be back if facing problem.
Regards, Khawar.

Help - Oracle 8.1.5 service is shutdown by itself

Hi All,
I'm new to oracle.
In my office, we're using oracle 8.1.5, the problem now is the services (under NT 4) sometimes can shutdown by itself. If I check the NT services, it shows that the oracle service is still running. But I can't connect to the database using sql plus, error is instance is shutdown. All I can do up to now is restart the services (Listener and Oracle instance).
What should I do to avoid this problem?
TIA
-Andi

Hi,
Below is the information from orclALRT.log:
There's a write/open error. At July 21, 21:00PM our backup is start to run.
Is it because the backup software locked some oracle's files ?
But after the error, the next morning July 22 the ORACLE instance is started with no error, even though user can't connect to the database.
TIA
Andi
Thread 1 advanced to log sequence 46212
Current log# 4 seq# 46212 mem# 0: E:\ORANT\ORADATA\ORACLE\REDO01.LOG
Sun Jul 21 21:38:26 2002
KCF: write/open error block=0x11072 online=1
file=1 E:\ORANT\ORADATA\ORACLE\SYSTEM01.DBF
error=27072 txt: 'OSD-04008: WriteFile() failure, unable to write to file
O/S-Error: (OS 33) The process cannot access the file because
another process has locked a portion of the file.'
DBW0: terminating instance due to error 1242
Instance terminated by DBW0, pid = 248
Mon Jul 22 03:00:04 2002
Starting ORACLE instance (normal)
Dump file E:\orant\admin\oracle\bdump\orclALRT.LOG
---------

Integrating Oracle Fusion Sales Cloud with Oracle Business Intelligence Cloud Service (BICS)

Ever wondered how to integrate Oracle Fusion Sales Cloud with Business Intelligence Cloud Service (BICS) ?
The blog outlines how to programmatically load Sales Cloud data into BICS, making it readily available to model and display on BICS dashboards.
http://www.ateam-oracle.com/integrating-oracle-fusion-sales-cloud-with-oracle-business-intelligence-cloud-service-bics/

I wouldn't try installing Oracle VM itself on an EC2 instance, as EC2 is essentially Xen itself. Rather, you should just be able to transport existing Oracle VM images to the EC2 cloud. I think this is what you mean, but your opening paragraph is slightly ambiguous. :)
From a VPN perspective, I'd use OpenVPN as it has clients for all major operating systems (Windows, MacOS X, Linux) that are fairly easy to package and install. Packages for OpenVPN exist in EPEL so it's easy to install on OEL5. You could also consider using a firewall instead of a VPN and only allowing connectivity from specific IP addresses/ranges. This has the benefit of not requiring client software, but it does require a fixed IP address/range on the client-side.

Oracleservice SID windows service

Actually I want to start database manually so how can I start the oracleservice<sid> from services panel and run the startup command as sys user manually from sql prompt?
Currently the service is manual but when I start it manually it starts the database. I don't want it to start database instead I want to start it myself from sql prompt.
Please suggest the way. Thanks.

You should probably use the documented ORADIM tool to change services' start mode.
E.g.
C:\>oradim -edit -sid xe -startmode manual
This way you may get the "idle instance", which seem to be what you are looking for.
C:\>set oracle_sid=xe
C:\>sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on To Maj 7 08:38:05 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.

Error starting Oracle BI Java Host service

Hi,
We are facing some issue while starting the Oracle BI Java Host service. It throws the following error.
This application was working properly till some 2 days back and suddenly it has started giving this error. We have not updated any software. The host machine is Win XP.
Sep 27, 2011 12:08:15 PM Main main
INFO: Javahost config file(s): C:\OracleBI\web\javahost\config\config.xml. Xpath:.
Sep 27, 2011 12:08:16 PM ApplicationImpl createEnvironment
INFO: Config environment properties:
presentation.coreconfigdir=C:\OracleBI\web\config
javahostdir=C:\OracleBI\web\javahost
rootdir=C:\OracleBI
presentation.dataconfigdir=C:\OracleBIData\web\config
presentation.rootdir=C:\OracleBI\web
tempdir=C:\OracleBIData\tmp
presentation.cordaroot=C:\OracleBI\Corda50
Sep 27, 2011 12:08:16 PM ApplicationImpl init
SEVERE: java.io.IOException: Unable to establish loopback connection
     at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:106)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:122)
     at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:27)
     at java.nio.channels.Pipe.open(Pipe.java:133)
     at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:104)
     at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:26)
     at com.siebel.analytics.javahost.Listener.<init>(Listener.java:53)
     at com.siebel.analytics.javahost.ApplicationImpl.init(ApplicationImpl.java:121)
     at com.siebel.analytics.javahost.standalone.Main.init(Main.java:127)
Caused by: java.net.SocketException: No buffer space available (maximum connections reached?): bind
     at sun.nio.ch.Net.bind(Native Method)
     at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
     at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
     at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:52)
     at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:72)
     ... 9 more
Request some input to resolve this error.
Thanks in advance.

@Deepak,
Following are the log contents
Sep 27, 2011 12:08:15 PM Main main
INFO: Javahost config file(s): C:\OracleBI\web\javahost\config\config.xml. Xpath:.
Sep 27, 2011 12:08:16 PM ApplicationImpl createEnvironment
INFO: Config environment properties:
presentation.coreconfigdir=C:\OracleBI\web\config
javahostdir=C:\OracleBI\web\javahost
rootdir=C:\OracleBI
presentation.dataconfigdir=C:\OracleBIData\web\config
presentation.rootdir=C:\OracleBI\web
tempdir=C:\OracleBIData\tmp
presentation.cordaroot=C:\OracleBI\Corda50
Sep 27, 2011 12:08:16 PM ApplicationImpl init
SEVERE: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:106)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:122)
at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:27)
at java.nio.channels.Pipe.open(Pipe.java:133)
at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:104)
at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:26)
at com.siebel.analytics.javahost.Listener.<init>(Listener.java:53)
at com.siebel.analytics.javahost.ApplicationImpl.init(ApplicationImpl.java:121)
at com.siebel.analytics.javahost.standalone.Main.init(Main.java:127)
Caused by: java.net.SocketException: No buffer space available (maximum connections reached?): bind
at sun.nio.ch.Net.bind(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:52)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:72)
It also mentions about the buffer space....could that be a reason for this.
By the way, I forgot to mention, this deployment is in a VMWare (with XP as OS) which is hosted on Windows Server.

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

How to reset TimeZone in oracle apps R12 instance?

Dear
I need to reset TimeZone in Oracle Apps R12 instance. When i ran Oracle Diagnostics,Java system properties report,i found that user.timezone=GMT-03:00.This is the reason showing time on Oracle Application Manager is wrong.
I need to reset to GMT+03:00, how do i reset the timezone?
Please help me.
Thanks
Ateeq

Yes, the date is set properly at the OS level.
TimeZone values are as follows:
Profile Option Name      Site
Client Timezone     (GMT -06:00) Central Time
Enable Timezone Conversions     No
JTF_CAL_DEFAULT_TIMEZONE     4
LE: Enable Legal Entity Timezone -
Server Timezone     (GMT -06:00) Central Time
Service: Default value for Service Request Timezone type List Item     Agent

Query on Oracle Concepts: Advantages of ASSM

Hi,
A query on Oracle Concepts, specifically on Advantages of ASSM.
While I am able to understand 'Simplified administration' & 'Increased concurrency', can anyone mention this in simple terms:
• Dynamic affinity of space to instances in an Oracle Real Application Clusters (Oracle RAC) environment.I guess I know whats Oracle RAC but what it meant by 'Dynamic affinity of space to instances'?
Regards,
Ankit Rathi

Hi Aman,
I was going through Oracle® Database Concepts 11g Release 2, Chapter 12 Logical Storage Structures (link below):
http://docs.oracle.com/cd/E11882_01/server.112/e25789/logical.htm#i19599
*Automatic Segment Space Management*
The ASSM method uses bitmaps to manage space. Bitmaps provide the following advantages:
•Simplified administration
ASSM avoids the need to manually determine correct settings for many storage parameters. Only one crucial SQL parameter controls space allocation: PCTFREE. This parameter specifies the percentage of space to be reserved in a block for future updates (see "Percentage of Free Space in Data Blocks").
•Increased concurrency
Multiple transactions can search separate lists of free data blocks, thereby reducing contention and waits. For many standard workloads, application performance with ASSM is better than the performance of a well-tuned application that uses MSSM.
•Dynamic affinity of space to instances in an Oracle Real Application Clusters (Oracle RAC) environment
ASSM is more efficient and is the default for permanent, locally managed tablespaces.Regards,
Ankit Rathi

Oracle 11g native web services

Is there any formal explanation about how to configure and create Oracle 11g native web services and how to correctly secure these services? Since Oracle APEX now supports consumption of SOAP and REST web services, it makes sense to have more explanation about creating and securing web services. As many PL/SQL programmers know, it is always not an easy job to develop web services in jDeveloper to work with databases - with all those add-on technologies like jPublisher/Toplink to get tiny things work. It is not easy to find the "how-to" guide about creating and securing Oracle 11g native web services.
Thanks.
Andy

Thanks for the link Tim...it is very useful. I was told that, in APEX 4.2, it will become able to create RESTful web services through APEX - if you run APEX through APEX Listener - by using resource templates in APEX Listener. I will wait for more information about this feature to come out.
Thanks.
Andy

Server-Services property called Web Services Listener in Enterprise Server

I am trying to find out the Server-Services property called Web Services Listener Port inside the Enterprise Server web console..but I cannot find it.. In the BPM manuals it is given that:-
When using FuegoBPM Enterprise Server, the Port is defined in the
Web Console as a Server-Services property called Web Services Listener
Port. Therefore, instead of the default port 9000 used in the Studio,
the URL is composed by this redefined port.
Where can I find this inside of the web console?

I got my answer:-
For 10g and 6.0 Studio:
http://{MachineName}:9000/albpmServices/{Projectname}/ws/{Processname}ServiceListener?wsdl=true
For 10g and 6.0 Enterprise using WebLogic, the URL is similar, but replace the {MachineName} and port number with the WebLogic host and port. And, you will need to replace the {project name} with {engine name}. The Engine name is the BPM engine name shown in the Oracle BPM admin console under Engines:
http://{WebLogic MachineName}:{WebLogic Port}/albpmServices/{Engine-name}/ws

How to stop Oracle Process Manager(Instances) ?

Hi,
I have installed OBIEE 11g. For some purpose I tried to stop the Oracle Process Manager(Instances) in services.msc. But it not get stopped its keep showing as stopping.
Is there any command to force shutdown this serives or is there any other way to stop this?
Thanks,
Satheesh

Hi User6787,
I have did what you said? while doing that only I got that issue.
What Saichand told worked well.
Thanks,
Satheesh

Oracle Concepts!!

(ORACLE CONCEPT DOCS.)
Log Writer (LGWR)..writes to files on the redo log files on the disk
Database Writer (DBWn)...writes to files on Data file on the disk
Log Writer Process (LGWR)
The log writer process (LGWR) is responsible for redo log buffer
management—writing the redo log buffer to a redo log file on disk.
The redo log buffer is a circular buffer. When LGWR writes redo entries from the
redo log buffer to a redo log file, server processes can then copy new entries over
the entries in the redo log buffer that have beenwritten to disk.
When a user issues a COMMIT statement, LGWR puts a commit record in the redo
log buffer and writes it to disk immediately, along with the transaction’s redo
entries. The corresponding changes to data blocks are deferred until it is more
efficient to write them. This is called a fast commit mechanism. The atomic write of
the redo entry containing the transaction’s commit record is the single event that
determines the transaction has committed. Oracle returns a success code to the
committing transaction, although the data buffers have not yet been written to disk.
When a user commits a transaction, the transaction is assigned a system change
number (SCN), which Oracle records along with the transaction’s redo entries in
the redo log. SCNs are recorded in the redo log so that recovery operations can be
synchronized in Oracle9i Real Application Clusters and distributed databases.
so what happens in the mean time if somebody pulls plug of electricity..Data has been written to online redo files not on DATA files...so after a restart which oracle process makes/copies entire new values of commited transactions to DATA files from online redo files?

SMON
SMON process performs instance recovery during startup by using the online redo log files.
When a user issues a COMMIT statement, LGWR puts a
commit record in the redo
log buffer and writes it to disk immediately, along > with the transaction’s redo
entries. I think the above statement is false.evethough commit is done,it will not write immediately to data files.It will make the transactions much slower.change will take effect on datafiles only once checkpoint is happening.
Can anyone verify this?
~

Unable to view Oracle Internet Directory Self Service Console

I am trying to access Oracle Internet Directory Self Service Console via following URL http://x.x.x.x:7777/oiddas.
i found the welcome page, but not able to access other tabs like
my profile,directory,configuration.
Error: Error encountered while connecting to Directory Server
Please help!

Thanks for your reply.
As per your suggestion i checked with EM..and find directory server instances is running.
whenever i clicked on <Oracle Internet Directory Self Service Console> link, i found said error.

Cannot start Oracle 10g database console service

Hello,
I was given a machine with Oracle 10g standard edition already installed.
I had problem with starting both the TNS and OrclDBConsole services.
After modifying the HOST Name in both the tnsnames.ora file and the listner.ora file i was able to start the TNS service. But I am still having problem with starting the OrclDBConsole service.
Any idea or suggestion what's wrong?
Thanks for the help!
Mitra

The DBConsole may also be started as a service.
The service for DBConsole is
Oracle<oracle_home><SID>DBConsole

Oracle concepts - SID / instance / service / listener / dispatcher ....

Similar Messages

Maybe you are looking for