Oracle 9i Shared Server Configuration

My working platform is as:
O.S. : Windows 2000 Server
Database: Oracle 9i Release 2
Database Configuaration is as:
Database: Manually created (not the default one) and SID = test
Listener :
Name: listener1
Port No. : 1523 (Not the default 1521)
Associated with "test" database.
Dispatchers: (PROTOCOL = TCP) (DISPATCHERS = 3)
Shared Server: Set to 2
At Client side (connected through LAN) : I am configured a "Service Name" using Oracle NetManager and Set the following parameter : Connection type = "Shared Server", SID = test, Listener Port = 1523, Host Name = IP Addrs of Server Machine
In this scenario, whenever I want to test the connection from client side (from Oracle NetManager), it shows the following error message.
Listener is not configured to handle this type of connection
Please help me to solve that problem.

"Listener is not configured to handle this type of connection"
When I try to connect through Listener which is running at non-default port ( i.e. apart from 1521) the above message is shown.
As soon as, I checked the service status of the running listener and I observed that listener is handling one handler which is for "Dedicated" only. There is no other handler initiated for that listener to handle "Dispatchers"

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Dedicated or shared server configuration

Hi all,
Good day...We have a 10204 rac db running on a linux server. Our concurrent connection are more than 1000..Is that good to have a shared server configuration or we can continue with dedicated server configuration...
thanks,
baskar.l

baskar.l wrote:
Good day...We have a 10204 rac db running on a linux server. Our concurrent connection are more than 1000..Is that good to have a shared server configuration or we can continue with dedicated server configuration...You make the question sound to exclusive - "shared OR dedicated".
In reality, all Oracle databases are capable of supporting both shared AND dedicated connections at the same time.
So perhaps the question becomes:
Based on the workload (typical transaction style) of the connections, how many shared and how many dedicated connections are required?
To answer that YOU need to understand your workload.

Oracle 10g Shared Server Problem Please Help

Hi
I am studying for Oracle 10g OCP ; I was trying to start the shared server feature of oracle10g ver 10.2.0.
The database name is :CERTIFICATION10g
The listener name is: LISTENER_CERTIFICATION10g Port:1521
I could register the dispatchers successully with the listener above. However when I open a new connection ; instead of going through the dispatcher it uses the dedicated connection. I tried opening many sessions but the established filed for both dispatchers remained 0
I post a dump of the lsnrctl services command below:
LSNRCTL> service listener_certification10g
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=einstein)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "certification10g" has 1 instance(s).
Instance "certification10g", status READY, has 3 handler(s) for this service..
Handler(s):
"DEDICATED" established:1 refused:0 state:ready
LOCAL SERVER
"D001" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: EINSTEIN, pid: 1428>
(ADDRESS=(PROTOCOL=tcp)(HOST=einstein)(PORT=1045))
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: EINSTEIN, pid: 1252>
(ADDRESS=(PROTOCOL=tcp)(HOST=einstein)(PORT=1044))
Service "certification10g_XPT" has 1 instance(s).
Instance "certification10g", status READY, has 3 handler(s) for this service..
Handler(s):
"DEDICATED" established:1 refused:0 state:ready
LOCAL SERVER
"D001" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: EINSTEIN, pid: 1428>
(ADDRESS=(PROTOCOL=tcp)(HOST=einstein)(PORT=1045))
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: EINSTEIN, pid: 1252>
(ADDRESS=(PROTOCOL=tcp)(HOST=einstein)(PORT=1044))
The command completed successfully
LSNRCTL>
Why are the connections not being routed through the dispatchers? Any additional setting needs to made?
Please reply asap
Thanls in Advance
Prahalad Deshpande

Maybe because you have in your listener.ora used by your client only this entry:
XXX =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = YYYY)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED) -> should be SHARED
(SERVICE_NAME = XXX)
(INSTANCE_NAME = XXXX)
(HS = OK)
)

Configaration error during the shared servies configuration.

Hi All,
I have configured the shared services, after that i want to test that. I went to
http://localhost:28080/interop/
I got an error:
Error: An error was encountered while performing this operation.
I tried lot, like reboot the system, deleted cookies. none works for me.
Please help me , I have been trying from so many days.
thanks in advance,
Raj.

Could you please check with <http://localhost:58080/interop>? if that doesn't work, then check the log file. (Hyperion_Home\logs\config\configtool.log or configtool_err.log). Also please paste the log details if possible.
Thanks,
KK

ISP shared server configuration -- are they nuts?

Help! I don't know if I'm being fed a line by my ISP or not.
I am in the process of moving my organization's Web site to a shared Solaris server hosted by one of the big ISPs.
When I was given the IP address and FTP'd to the site to start transferring files, I found I could navigate all the way up to the root of the Solaris server. All of the standard Unix directories seem to be visible, such as dev, usr, bin, etc. Although my user rights appear to be limited -- I can't copy a file into usr/games for example -- I can clearly see the folder names for the other clients sharing the server (although I could not see their individual files) and can FTP back some of the operating system software, including a quota file. Some of the folder names are pretty obviously the names of the other companies sharing the site.
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Thanks a lot and i know the reason now but i removed the conn=2 form the dispatchers parameter value but immediately after this i got error message
ORA-12518: TNS:listener could not hand off client connection
and users were not able to connect with the database so i changed value back. Why did i receive this error message? any idea
Thanks
Salman

Oracle iPlanet Web Server 7 - Configuration Failed

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Installing Oracle iPlanet Web Server
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Oracle 11g b2b server JMS Internal Delivery Channel Configuration

Hi,
I am using Oracle 11g b2b server configured with ebMS protocol. I have created a JMS internal delivery channel at host trading partner. Now the Inbound message (message from remote trading partner) will be delivered to back-end application through the jms internal delivery channel. Now I wanted to send this message to the another weblogic server domain which is hosted on another box. So where do I give the other weblogic domain details such that the message will be delivered from the host trading partner's b2b server to remote weblogic domain queue?
Regards,
Baskaran

Hi Baskaran,
As already mentioned by Nitesh, You can Create a Internal JMS Delivery channel and configure the same in your agreement to route the messages to the remote weblogic(domain) JMS queue.
Remote weblogic domain's ip address and port details can be configured as part of JMS Internal Delivery channel, "Destination Provider" like below,
eg.
java.naming.provider.url=t3://<host>:<port>;java.naming.factory.initial=weblogic.jndi.WLInitialContextFactory;java.naming.security.principal=<username>;java.naming.security.credentials=<password>
In this case the messages directly delivery to the remote JMS queue.
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Shared server config issues

Dear experts,
Below is my environment details:
DB: Oracle 10gR1 Base (10.2.0.1)
OS: RHEL 5
I have configured shared servers as shown below:
1) Set the following parameters
dispatchers='(protocol=tcp)(dispatchers=2)'
max_dispatchers=10
shared_servers=4
max_shared_servers=10
circuits (not configured)
2) Changed TNS parameter as below
I modified SERVER=DEDICATED to SERVER=SHARED
3) lsnrctl services
the output of this command shows dispatchers ready
Now coming to the issue, when i connect to the database using new tns alias, i see "NONE" displayed under "SERVER" column of the V$SESSION view. It should have been SHARED.
Appreciate your help in this regard.
Thanks
P

In Shared Server configuration when we see value 'NONE' , it means there is no task being processed by shared server for that session. The server column will infact show status of 'SHARED' if there is some task being processed at that particular time by the shared server process for that session. Hence to check the status, fire some big query and then check the server status .
you can check the shared server as
select server from v$session where machine='XXXX' ;--neeraj

Converting from dedicated server to shared server

Hi,
How to convert from a dedicated server configuration to a shared server configuration.
Thanks
Muneer

SHAN@2009 wrote:
Hi
I am using Oracle 11g Database Release 1 OS Windows 2003 Server R2 SP2, I have Created a Database and the database server mode is "Shared' recently my user request me to change server mode into Dedicated for there testing Purpose.what are the Parameters i have set in the ini file for converting the server mode from Shared to Dedicated.
Please advice .
Thanks
ShanIt's not an either/or situation, as the database does not "run in shared server mode" vs. "run in dedicated server mode". A database will *always* accept dedicated connections if requested by the client. It *may* accept shared server connections -- *if* requested by the client *and if* it is configured to accept them.

MTS (shared server) problem

Hi,
when i use MTS (shared server) architecture, after a while,
i see 1500 sessions in v$session, but, about 4000 oracle processes in the operating system which hits the os user max process limit and get the following error.
how can that be? 1500 sessions in v$session, and, 4000 oracle processes in OS.
i can not reproduce the same case since this is production.
in test, i tried to reproduce the case but even though, i create mts sessions once in a second, after 1 hour, no problem.
shared_server=10
max_shared_server=50
max_dispatchers=2 (each with 250 connections)
thanks,
ORA-27300: OS system dependent operation:fork failed with status: 11
ORA-27301: OS failure message: Resource temporarily unavailable
ORA-27302: failure occurred at: skgpspawn3

Afew things to check, firstly are the connections actually using shared server? check ther server column in v$session session may show as dedicated in which case th eocnnection is requesting a dedicated server and is ignoring the shared server configuration.
next check v$process have you got 4000 processes listed there? if so you can connect them back to the sessions e.g.
select vs.sid,vs.serial#,vs.username,vp.SPID,vp.PROGRAM
from v$session vs,
v$process vp
where vs.PADDR=vp.ADDR

Shared Server and Dedicated Connetion

Scenerio:
We have 1000 dedicated server database connection. My boss want me to configure one shared server connection out of 1000 dedicated connection for 100+ user of one particular module. Is it possible?
I guess if we activated shared server at database level then for 999 connetion we have to pass SERVER=DEDICATED at connection string. Which is not feasible for me seeing my current enviroment.

Rajib Sutradhar wrote:
Scenerio:
We have 1000 dedicated server database connection. My boss want me to configure one shared server connection out of 1000 dedicated connection for 100+ user of one particular module. Is it possible?
I guess if we activated shared server at database level then for 999 connetion we have to pass SERVER=DEDICATED at connection string. Which is not feasible for me seeing my current enviroment.Yes, you're correct.
Unless you start using a shared tnsnames.ora file ( some where at a netwerk share ) and have pointing TNS_ADMIN to it, it means updating every tnsnames on every client you have.
However I found this link:
http://www.filibeto.org/sun/lib/nonsun/oracle/11.1.0.6.0/B28359_01/server.111/b28310/manproc003.htm
Where it says you can limit the number of concurrent shared sessions used by setting the parameter SHARED_SERVER_SESSIONS
Reading more of it, it looks like you can also define a seperate listener, with a seperate port for the shared server configuration and configure the dispatchers with that listener information.
So, it looks like you don't even have to change 1000 clients
Good Luck,
FJFranken
My Blog: http://managingoracle.blogspot.com

Different between shared server and dedicated server

could you explain difference between shared server and dedicated server.

Oracle has two modes, a shared server mode and a dedicated server mode. In dedicated server mode (the default), the Oracle server creates one process per connection.
This quickly limits the number of connections the Oracle Server can support due to the following:
1.There is an OS limit on how many processes/file descriptors can be supported
2.Oracle has an internal PROCESSES parameter that prevents it from launching more than the specified number of processes.
When it is anticipated that these limits may be exceeded, which frequently happens for 50-100 concurrent connections, you should either configure Oracle in shared server mode or increase the limits above, so that many concurrent connections can be supported by each Oracle process. Oracle states that running in shared server mode is slightly slower than in dedicated server mode.

Thread settings in the Application Sharing Server

Hi,,,
Iam doing the RTC Application Sharing implementation in the portal.For that we hve to enable the Application Sharing server,Configure the thread settings and finally we have to monitor the application sharing server.
In the Configure the Thread settings,,, I kept the default values only.
what are the things we need to change here.In what way it will reflect in the web.Xml file.
Initial thread count -
40
Max. thread count -
250
Min. thread count -
40
Max Request Queue size -
5000
Thread Idle Timeout Property -
5
Could anyone help me to sort this issue.
Thanks in advance.
Regards
Sushma

I've had this issue in many folders. Very frustrating!

Shared server connections.

we are running a third party application with an 11g database shared server configuration and OAS 10gR2. Dispatchers set to 10 and shared servers set to 100. When the database instance is started, the 100 shared server and 10 dispatcher sessions start up and I can see these processes with ps -ef. They show as ora_s0* processes and ora_d0* respectively.
At some point after the startup of the application, it establishes a connection pool of 100 sessions (10 per dispacher). The process Id of these sessions correspond to the pids of the dispatcher processes not the shared server processes.
The 100 sessions in the connection pool remain idle until a user logs on to the system. When a successful login is made, I see that about 8 of the idle sessions become active and remain so until the user finishes with the application and logs out.
Questions :
1. Is there a query I can do to show me the shared sherver sessions i.e. ora_s0* being used?
3. Are the 100 sessions (in the connection pool) really the shared server sessions even though they show up with the pid of the parent dispatcher?
2. I need to record the number of connections being made to the system over a period and how long each user is connected for, could you suggest the best method (including queries) of going about this task?
Thank you.

user8869798 wrote:
we are running a third party application with an 11g database shared server configuration and OAS 10gR2. Dispatchers set to 10 and shared servers set to 100. When the database instance is started, the 100 shared server and 10 dispatcher sessions start up and I can see these processes with ps -ef. They show as ora_s0* processes and ora_d0* respectively.
At some point after the startup of the application, it establishes a connection pool of 100 sessions (10 per dispacher). The process Id of these sessions correspond to the pids of the dispatcher processes not the shared server processes.
The 100 sessions in the connection pool remain idle until a user logs on to the system. When a successful login is made, I see that about 8 of the idle sessions become active and remain so until the user finishes with the application and logs out.
Questions :
1. Is there a query I can do to show me the shared sherver sessions i.e. ora_s0* being used?You can use v$shared_server s, v$circuit c, v$session n
with this as joining condition- s.circuit = c.circuit and c.saddr = n.saddr
3. Are the 100 sessions (in the connection pool) really the shared server sessions even though they show up with the pid of the parent dispatcher? you can query server column of v$session to check if they are shared or dedicated.
2. I need to record the number of connections being made to the system over a period and how long each user is connected for, could you suggest the best method (including queries) of going about this task?
I see only ash the option for you, else you need to have your own scheduled script/procedure that would gather that information.
Thank you.

Dedicated Server Process or Shared Server Process

Hi,
I am little confused to justify the number of users that may be best to use dedicated server process or shared server process.
Kindly advice.

In addition, make sure you account for administrative issues. It's a lot more challenging to trace applications using shared server connections. Shared server configurations also tend to introduce a variety of gotchas into a DBA's world-- at a minimum, most articles you find on the internet tend to ignore any shared server specific issues. That's one of the reasons that I tend to be of the opinion that if you have to ask, you probably don't need to enable shared server.
Justin

Oracle 9i Shared Server Configuration

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