Use 1 listener for multiple database in a server

hi guys,
just want to check whether this is the right way to configure my Listener.ORA . I am using 1 listener.ora to listen for incoming request connection from remote client. There are multiple databases installed in a server.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = ora03)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = O11R2)
(ORACLE_HOME = /oracle/app/oracle/product/11.2.0/db_1)
(SID_NAME = O11R2)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = O10G)
(ORACLE_HOME = /oracle/app/oracle/product/10.2.0/db_1)
(SID_NAME = O10G)
)sorry i am reading about it so did not install another database to test out. Just thinking in the line that it mention that the list of SID is refering to the multiple database that is installed in a server and i am using 1 listener.
Please further advice.

Shivananda Rao wrote:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = ora03)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = O11R2)
(ORACLE_HOME = /oracle/app/oracle/product/11.2.0/db_1)
(SID_NAME = O11R2)
(SID_DESC =
(GLOBAL_DBNAME = O10G)
(ORACLE_HOME = /oracle/app/oracle/product/10.2.0/db_1)
(SID_NAME = O10G)
)Please use as above. You can have one listener for multiple databases.right right so it the pattern goes like this:
SID_LIST_LISTENER =
     (SID_LIST =
          (SID_DESC =
          (GLOBAL_DBNAME = AAAA)
          (ORACLE_HOME = /oracle/app/oracle/product/11.2.0/db_1)
          (SID_NAME = AAAA)
          (SID_DESC =
          (GLOBAL_DBNAME = BBBB)
          (ORACLE_HOME = /oracle/app/oracle/product/10.2.0/db_1)
          (SID_NAME = BBBB)
     )thanks !

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One Listener for multiple things?

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Hi,
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Philip,
I will try to answer at your questions.
so from what u r saying is, if i have 3 databases in
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1. if i want to know how many listeners are in setup...You can see it with lsnrctl command, after set well ORACLE_HOME (for linux, export ...) :
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E:\oracle\ora92\bin>lsnrctl status
LSNRCTL for 32-bit Windows: Version 9.2.0.7.0 - Production on 16-NOV-2005 22:44:
41
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=gocha)(PORT=1522)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for 32-bit Windows: Version 9.2.0.7.0 - Produc
tion
Start Date                16-NOV-2005 22:44:04
Uptime                    0 days 0 hr. 0 min. 40 sec
Trace Level               off
Security                  OFF
SNMP                      OFF
Listener Parameter File   E:\oracle\ora92\network\admin\listener.ora
Listener Log File         E:\oracle\ora92\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gocha)(PORT=1522)))
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The command completed successfully
E:\oracle\ora92\bin>>
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>
3.when i have 3 databases and i when i login through...When you are logon to database, you can see what db with
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export ORACLE_SID=emrep
sqlplus '/ as sysdba'>
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Good luck in your job,
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Running a oracle script for multible database on same server

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mailto:[email protected]

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Hi,
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[oracle@ravish5 admin]$ cat listener.ora
LISTENER_A=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_A)))) # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_A=ON # line added by Agent
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oracle 1985 1 0 00:46 ? 00:00:00 /11g_crs/11.2.0.2/product/home/bin/tnslsnr LISTENER -inherit
oracle 1988 1 0 00:46 ? 00:00:00 /11g_database/11.2.0.2/product/home_1/bin/tnslsnr LISTENER_A -inherit
oracle 2928 1 0 01:00 ? 00:00:00 /11g_crs/11.2.0.2/product/home/bin/tnslsnr LISTENER_SCAN1 -inherit
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LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 02-MAY-2012 03:19:35
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_A)))
STATUS of the LISTENER
Alias LISTENER_A
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 02-MAY-2012 00:46:42
Uptime 0 days 2 hr. 32 min. 54 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
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Listener Log File /11g_database/11.2.0.2/diag/tnslsnr/ravish5/listener_a/alert/log.xml
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(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_A)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.3.5)(PORT=1529)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.3.16)(PORT=1529)))
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Service "TESTXDB" has 1 instance(s).
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The command completed successfully
SQL> show parameter listen
NAME TYPE VALUE
listener_networks string
local_listener string (DESCRIPTION=(ADDRESS_LIST=(AD
DRESS=(PROTOCOL=TCP)(HOST=192.
168.3.16)(PORT=1529))))
remote_listener string ravish-scan:1529
SQL> exit
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With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
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SCAN Listener LISTENER_SCAN1 exists. Port: TCP:1521,1529
[oracle@ravish5 admin]$ srvctl config scan
SCAN name: ravish-scan, Network: 1/192.168.3.0/255.255.255.0/eth0
SCAN VIP name: scan1, IP: /ravish-scan.clover.com/192.168.3.22
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Name: LISTENER
Network: 1, Owner: oracle
Home: <CRS home>
End points: TCP:1521
Name: LISTENER_A
Network: 1, Owner: oracle
Home: /11g_database/11.2.0.2/product/home_1
End points: TCP:1529
[oracle@ravish5 admin]$ srvctl config service -d TEST -s srvc_test.clover.com
Service name: srvc_test.clover.com
Service is enabled
Server pool: TEST_srvc_test.clover.com
Cardinality: 2
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: true
Failover type: SELECT
Failover method: BASIC
TAF failover retries: 0
TAF failover delay: 0
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: BASIC
Edition:
Preferred instances: TEST1,TEST2
Available instances:
TEST_NEW =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = ravish-scan.clover.com)(PORT = 1529))
(LOAD_BALANCE = yes)
(FAILOVER = ON)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = srvc_test.clover.com)
(FAILOVER_MODE =
(TYPE = SELECT)
(METHOD = BASIC)
Actually different ports for different databases are required to have separation of duties. Once Firewall enabled betwen Client & DB Server only privileged users would have access to particular database.
Regards,
Manish

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Multiple database in single server

Hi experts,
Please tell me how to configure multiple SID with single listener.
I configured the DR setup of two databases in single server. Now the problem is, if I start one listener from orapm1(CRM), my data is replicating only for CRM, and if I am going to start my listener from oraPE2 user (DBM), error is coming u201C listener is already startu201D but DBM is not replicating with DR site.
And when I stop the listener from oraPM1, and start listener from user oraPE2(DBM), my DBM is replicating properly, I want to start both in parallel with one listener.
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If I am correct please let me know the steps, what precautions we need to take.
And what change I need to do in listener file.
2nd) Can I work on same port for both SIDs, if yes please tell me the steps.
My CRM is working properly so I need to change in DBM part.
I am attaching listener file from both users in same server (10.11.230.12)
ADMIN_RESTRICTIONS_LISTENER = on
LISTENER_PE2 =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = IPC)
(KEY = PE2.WORLD)
(ADDRESS=
(PROTOCOL = IPC)
(KEY = PE2)
(ADDRESS =
(COMMUNITY = SAP.WORLD)
(PROTOCOL = TCP)
(HOST = 10.11.230.12)
(PORT = 1527)
STARTUP_WAIT_TIME_LISTENER = 0
CONNECT_TIMEOUT_LISTENER = 10
TRACE_LEVEL_LISTENER = OFF
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PE2)
(ORACLE_HOME = /oracle/PE2/102_64)
pm1 listener file
ADMIN_RESTRICTIONS_LISTENER = on
LISTENER =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = IPC)
(KEY = PM1.WORLD)
(ADDRESS=
(PROTOCOL = IPC)
(KEY = PM1)
(ADDRESS =
(COMMUNITY = SAP.WORLD)
(PROTOCOL = TCP)
(HOST = 10.11.230.12)
(PORT = 1527)
STARTUP_WAIT_TIME_LISTENER = 0
CONNECT_TIMEOUT_LISTENER = 10
TRACE_LEVEL_LISTENER = OFF
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PM1)
(ORACLE_HOME = /oracle/PM1/102_64)
Thanks in advance.

Dear Experts,
please tell me is it ok or i need to change something else?
this example is for only one listener, and i put both SID details in same LISTENER, or i need to change the listener name for another server. it is very confusing...
ADMIN_RESTRICTIONS_LISTENER = on
LISTENER =
(ADDRESS_LIST =
        (ADDRESS =
          (PROTOCOL = IPC)
          (KEY = PM1.WORLD)
        (ADDRESS=
          (PROTOCOL = IPC)
          (KEY = PM1)
        (ADDRESS =
          (COMMUNITY = SAP.WORLD)
          (PROTOCOL = TCP)
          (HOST = 10.11.230.12)
          (PORT = 1527))
LISTENER =
(ADDRESS_LIST =
        (ADDRESS =
          (PROTOCOL = IPC)
          (KEY =PE2.WORLD)
        (ADDRESS=
          (PROTOCOL = IPC)
          (KEY = PE2)
        (ADDRESS =
          (COMMUNITY = SAP.WORLD)
          (PROTOCOL = TCP)
          (HOST = 10.11.230.12)
          (PORT = 1528))
SID_LIST_LISTENER =
(SID_LIST =
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STARTUP_WAIT_TIME_LISTENER = 0
CONNECT_TIMEOUT_LISTENER = 10
TRACE_LEVEL_LISTENER = ON
SID_LIST_LISTENER =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = PE2)
      (ORACLE_HOME = /oracle/PE2/102_64)
Rishi

Multiple databases on same server

we're planning to consolidate our SAP R/3 databases on a 64bit based cluster running Windows 2003/SQL Server 2005.
the "SAP with Microsoft SQL Server 2005: Best Practices for High Availability, Maximum Performance, and Scalability" document states "SAP products support multiple instances of SQL Server 2005 on the same server. However, running the database of the SAP production system together with other application databases on one server is not recommended." and "An alternative is to run two or three SAP databases on one SQL Server 2005 instance.".
giving this, I'd like to know if it's not recommended even if the 'other application databases' are related to other instances of SAP R/3 product.
it would be useful to know why one SQL Server instance with multiple SAP databases is better than multiple SQL Server instances with one SAP database for each.
thank you.

Dear Matro,
Please review the following thread:
Multiple database instances on single server on SQL2005
I also note that you state your database server is clustered using MSCS. If this is the case you should not use a "Named Instance". If you download the latest Netweaver 2004s Installation guide (SR1) for Windows SQL you will note that on page 172 it specifically states that you must install a "default instance".
If you plan to consolidate several SAP database systems on one host and use a default instance you need to consider the fact that all databases running on this instance will share resources such a memory cache etc.
Factors such as the size of the SAP systems, whether the systems are OLTP will influence your decision
Please post if you have any additional questions.
Thanks
N.P.C

Using models for multiple one-to-many table relationships

Hi there!
I have a database with tables that have one-to-many relationships. They
are laid out with a standard join tables:
A     A_B     B     B_C     C
a_id     a_id     b_id     b_id     c_id
b_id     c_id
and has 1 A for n of B. In some cases, the B table also joins with
another table for yet more information.
My question: what technique should I use to organize a database of this
type into JATO Models?
I could create an AModel, for example, that would have a set of query
field descriptors for the information relevant from tables A and B. But
then how do I query table C when that information is necessary? Or,
more to the point, create information in C when a new entry in B is created.
Do the models use each other, or is that left up to the view bean (seems
incorrect for data isolation).
Any pointers appreciated,
Byron

Byron,
You can create a separate "modifying" model for each table and do
inserts/deletes/updates in a transaction across the tables with the
three models. That's really the easy part.
The somewhat more tedious part is the "join" models, but not hard to do.
You just have to decide what you need from the different tables and
quite possibly create multiple join models for different select scenarios.
So let's just run through a simple two table join model.
Create a SQL model. I usually name them based on the table joins. Let's
use a somewhat more real example:
table = customer
columns = custid, firstname, lastname, email
table = address
columns = addrid (seqid), custid (fk), type
('w'ork,'h'ome,'b'illing,'s'hipping,'o'ther), address1, address2, city,
state, zip
Suppose we want to select a customer and show a list of all his/her
addresses.
I would create a SQL model class (extending QueryModelBase of course)
called CustomerAddressJoinModel (this naming convention gets tough with
three or more tables, so you have to be creative).
In that model, I would create the fields just like any single table
model. You need only include the columns you need. Maybe you create one
join model that only has custid, lastname, firstname, type, city, zip.
OK, so we only cut out 2 columns, but you get the point. If you had a
table with lots of columns with data you rarely need to display and/or
update, then you can exclude them. Probably a slick way to exclude
dynamically, but this is straight forward.
Another join model could have all the columns of both tables.
So the trick is to set the static where criteria (using the
setStaticWhereCriteria method) in the model's constructor. I think the
sql model template has this in it.
setStaticWhereCriteria(customer.custid=address.custid);
Now you just set your criteria like any other model, and execute it.
For a 3 table join, you just set the static criteria like this:
tableA.aid=tableB.aid AND tableB.bid=tableC.bid
does that make sense?
You can also set the "modifying table" (setModifyingTable(table) - i
think that's right) in the model and inserts/updates/deletes will only
operate on that table within the model. Problem is maybe in the the
field binding in your views. You may want to select from one field, and
modify using another field. Can be done though, just not directly supported.
In the next release of JATO, you will be able to set a display fields
binding for read and write using different fields and even different models.
craig
Byron Servies wrote:
Hi there!
I have a database with tables that have one-to-many relationships. They
are laid out with a standard join tables:
     A     A_B     B     B_C     C
     a_id     a_id     b_id     b_id     c_id
     b_id     c_id
and has 1 A for n of B. In some cases, the B table also joins with
another table for yet more information.
My question: what technique should I use to organize a database of this
type into JATO Models?
I could create an AModel, for example, that would have a set of query
field descriptors for the information relevant from tables A and B. But
then how do I query table C when that information is necessary? Or,
more to the point, create information in C when a new entry in B is created.
Do the models use each other, or is that left up to the view bean (seems
incorrect for data isolation).
Any pointers appreciated,
Byron
To download the latest version of JATO, please visit:
http://www.sun.com/software/download/developer/5102.html
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

Use 1 listener for multiple database in a server

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