Shared server issues

Hello,
I am learning some about shared servers.
I've read this part of docs
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14231/manproc.htm#sthref630
and tried to set shared server in my database.
So I set parameters:
dispatcher="(protocol=tcp)(dispatchers=4),
shared_server=10
and entry in tnsnames.ora to:
(connect_data=
(server=shared)
(service_name=orcl.mydomain.com)
Then I restarted my database and connected:
connect hr
connect scott
connect a
Then I checked v$session.server, but it is showing that all these users are using dedicated server, but there are some who use shared server (sysman and dbsnmp).
I don't understand it. Anybody could help, please?
Aliq

Hi
when You use Rman you need dedicated connection right so
suppose your tnsnames.ora is like
AXIS_DEDICATED=.....then don't delete it add another line
like AXIS_SHARED=.....
so Your TNSNAMES would look like
AXIS_DEDICATED=DESCRIPTION.........server=dedicated............
AXIS_SHARED=DESCRIPTION.........server=shared............
now if you want shared server use username/password@AXIS_SHARED
and in the same database you want to use dedicated like using RMAN
the use
username/password@AXIS_DEDICATED
have fun
Sunil Mohanty

Similar Messages

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

WAIT(RECEIVE) issue in shared server

I am reading cursor in a thread in C# side. When I stop the thread before fully reading the cursor, then the STATUS in v$shared_server shows WAIT(RECEIVE). If the cursor is fully read then v$shared_server does not contain WAIT(RECEIVE) status. So to avoid this issue one possible solution is to read the cursor fully in background. I am using Oracle 10.2.0.1 and my server is Shared Server.
Please suggest any other solution for this issue.
Thanks in Advance.
Regards
Neena

Hi,
Could you try the following to migrate the logins and check the result?
1. You may drop all the windows login. Modify the script generated by sp_help_revlogin step and replace create login
to drop login.
2. Use the script generated by sp_help_revlogin step to create
Logins. Modify login name to accommodate new domain name.
3. Grant server level roles using the output from:
Generate Server level role related info :
SELECT 'EXEC sp_addsrvrolemember ''' +
p.name + ''' , ''' + r.name + ''';'
FROM
sys.server_principals r
INNER JOIN sys.server_role_members m ON r.principal_id = m.role_principal_id
INNER JOIN sys.server_principals p ON
p.principal_id = m.member_principal_id
WHERE
r.type ='R'
Sample Output :-
EXEC sp_addsrvrolemember 'sa' , 'sysadmin';
4. Map the SIDS using below command for all DB by using ALTER USER. For example:
ALTER USER [DomainA\UserA] with login = [DomainB\UserA]
See:
http://blogs.technet.com/b/mdegre/archive/2011/06/27/can-i-move-sql-server-to-another-domain.aspx
Here some useful articles:
http://www.databasejournal.com/features/mssql/article.php/3922256/Re-generating-SQL-Server-Logins.htm
http://support.microsoft.com/kb/918992/en-us
http://support.microsoft.com/kb/240872
Thanks.
Tracy Cai
TechNet Community Support

On 10.9 - I can no longer open, copy or preview files on a shared server

I am on a 2007 iMAC and I connect to a shared server in our office. I just upgraded to 10.9 and am experiencing a number of problems:
- When trying to open files through finder I get the notification "Application not found"
- When trying to copy to/from server I get error mssages 43 or 8058
- Can't drag files into applications shown in dock
- Vectorworks 2010 not working at all
If I open an application and use File/Open and select files from the server they open fine, but I need to be able to use finder & preview...
I think the above issues might have something to do with permissions?
Please help

I've had the same issues. For me, trashing the permissions didn't resolve anything. The only work-around I've found is force quitting/relaunching the Finder. I have to do it every day, sometimes twice, but at least I can drag, copy and double click on files to launch an app.
Hope that helps.

How to set up a basic file sharing server for my small architectural business?

I have no idea if I have posted in the correct area as this is my first forum post within the apple support community!
I have been using a 21.5" imac running 10.6.8 for the past 5 years to run my small home based architectural design business. I have been using the internal hard drive & backing up the necessary data to a simple usb external hard drive. I am now looking to firstly purchase a new imac 27" retina and purchase new autocad lt 2015 for mac software. I am looking to have another imac (my old mac) running in conjunction with the new mac. I want both macs to be able to access the same data and am slightly unsure what is the best way to achieve this.....As my old mac is currently only running snow leopard and an old version of autocad for mac 2011 it wont run on any more recent OS. Essentially i believe I have 2 main options with this.... (1) I Accept that I have to purchase 2 no. autocad lt 2015 licences @ a cost of £2300. Or option (2), I only run autocad on the new mac as this will be the primary station and the old mac used for primarily for admin & accounts. I have also recently discovered that it is possible to rent autocad licences for £300p/a which may also be another option (3)!
I previously had a problem where my hard drive failed on my mac & lost all data on the internal hard drive, luckily I had been backing up all data regularly to my external hard drive and now loss occurred! Obviously with any new system I want to ensure that my data is safe!
I currently utilise about 250GB of data for business operations but this will obviously grow with time.
In the future I would like to have the option of potentially being able to access the network data remotely via macbook pro whilst abroad although at this stage this really isnt my primary objective. Although I believe I could achieve this through apple remote desktop.
I suppose I should provide some information with regard to the required speed of the system...I regularly open 50-100 photos at the same time totalling around 250-500MB. I would like the system to be able to handle this fairly easily.
I have been trawling through forums and to be honest they are totally confusing me. I have also spent time on the phone to the apple business team and have also discussed my objectives with a member of the apple team in store.
There have been various options advised to me and I really do not know which is the most appropriate route forward.
1 - Using a mac mini as the file server and linking the 2 mac devices to this and backing up the mac mini to an external hard drive to ensure no loss of data.
2 - Using a time capsule as a file server and linking the 2 mac devices to this and backing up the TC to an external hard drive to ensure no loss of data.
3 - Using the new mac hard drive and linking the 2 macs via thunderbolt (old mac does not have thunderbolt and so I guess I would need another new mac?!) and then backing up the data to a time capsule.
4 - Using a RAID based server and linking the 2 no. macs.
Sorry to ramble but any advice really would be greatly received!

Hi sblemings,
Welcome to the community.
I think with your scenario you should ask yourself, how complicated do you want the setup to be and how much time would you have to be able to resolve an issue should one occur with this setup.
All the options that have been advised would work but they come with complexity and therefore time.
1 - Using a mac mini as the file server and linking the 2 mac devices to this and backing up the mac mini to an external hard drive to ensure no loss of data.
2 - Using a time capsule as a file server and linking the 2 mac devices to this and backing up the TC to an external hard drive to ensure no loss of data.
3 - Using the new mac hard drive and linking the 2 macs via thunderbolt (old mac does not have thunderbolt and so I guess I would need another new mac?!) and then backing up the data to a time capsule.
4 - Using a RAID based server and linking the 2 no. macs.
Sorry to ramble but any advice really would be greatly received!
option 1
Would be a way to achieve what you want, it would centralise your files and you would only need to backup your file server (as long as all the files you wanted backed up were on it). This could be achieved either using the client and sharing various folders or using Server which would give you more options than you would possibly need.
option 2
This is exactly like option 1 except that you wouldn't have to administer another mac however you may limit any future growth.
option 3
This option I probably wouldn't pick, you could achieve this with firewire and use a firewire to thunderbolt adapter (saves you having to buy a new iMac)
option 4
This option would, depending on your RAID level, give you disk redundancy but remember you would still need to back this up, as RAID is NOT a backup solution.
I would also ask is there a pressing need to keep the old iMac in service and complicating things by having a server / NAS? Could you not just transfer all your information over to this and continue with the one backup? I would say that doing it this was would be the simplest way of achieving what you want from what I can take from your question.
As for remotely accessing your data, if you have the right hardware the way to achieve this would be to use a VPN and connect back to your data. However a potentially easier way for you ,would be to use a service like logmein or teamviewer to connect back.
Hope this helps, and by all means any questions please ask.
Dan
How to set up a basic file sharing server for my small architectural business?

How to install BDB XML on shared server?

Hi All,
1. I want to install BDB XML on a shared server (bluehost). Can anyone suggest me how to do it? Since I dont have enough permissions, some of the 'php shared extensions' are not being installed. I get warning like-
Installing shared extensions: /usr/lib/php/extensions/no-debug-non-zts-20060613/
cp: cannot create regular file `/usr/lib/php/extensions/no-debug-non-zts-20060613/#INST@343#': Permission denied
make: *** [install-modules] Error 1
2. Also, how can I add new libraries to library path? (Again no permission)
Any help on these issues would be highly appreciated,
Thanking you in anticipation.

I'm talking about Berkeley DB XML, just in case it was not clear.

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!

APEX error: Found dead shared server

Hi,
I frequently encounter an error when working with APEX. If I submit any change to APEX, fi a change on some page item, APEX asks me to whether I'd like to save the wwv_flow_accept URL. I then get a file save dialog. This doesn't happen all the time, but something like 2 out of 10 times I submit something.
Looking at the database logs, I see an entry in alert.log with this information:
<pre>
Fri May 22 17:56:36 2009
Errors in file c:\oraclexe\app\oracle\admin\xe\bdump\xe_s004_1948.trc:
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_npierr+487] [PC:0x5F22C3] [ADDR:0x4] [UNABLE_TO_READ] []
Fri May 22 17:56:40 2009
found dead shared server 'S004', pid = (18, 1)
</pre>
Looking into the respective trace file gives me this information:
<pre>
Dump file c:\oraclexe\app\oracle\admin\xe\bdump\xe_s004_1948.trc
Fri May 22 17:56:36 2009
ORACLE V10.2.0.1.0 - Production vsnsta=0
vsnsql=14 vsnxtr=3
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
Windows XP Version V5.1 Service Pack 3
CPU : 1 - type 586, 1 Physical Cores
Process Affinity : 0x00000000
Memory (Avail/Total): Ph:727M/1511M, Ph+PgF:1181M/2133M, VA:1428M/2047M
Instance name: xe
Redo thread mounted by this instance: 1
Oracle process number: 18
Windows thread id: 1948, image: ORACLE.EXE (S004)
*** ACTION NAME:(PAGE 4311) 2009-05-22 17:56:36.625
*** MODULE NAME:(APEX:APPLICATION 4000) 2009-05-22 17:56:36.625
*** CLIENT ID:(CKH_DEV:2151496271973569) 2009-05-22 17:56:36.625
*** SESSION ID:(29.4) 2009-05-22 17:56:36.625
*** 2009-05-22 17:56:36.625
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_npierr+487] [PC:0x5F22C3] [ADDR:0x4] [UNABLE_TO_READ] []
Current SQL statement for this session:
COMMIT
----- PL/SQL Call Stack -----
object line object
handle number name
267D174C 1275 package body APEX_030200.WWV_FLOW
267D174C 5421 package body APEX_030200.WWV_FLOW
267D174C 13366 package body APEX_030200.WWV_FLOW
26521088 30 anonymous block
----- Call Stack Trace -----
memory dump follows
</pre>
Has anybody an idea what is going wrong on my machine here?
Best regards,
Jürgen

Hi,
I took a bit of time to dig deeper into this issue. I came to the conclusion that there is a bug in Oracle XE:
If you connect to Oracle XE database using the EPG path and if you create a report that gets its data over a database link, the shared server processes used to connect to the database break.
What I did to produce this error:
I installed Oracle XE Universal Edition on a Windows XP system
I then updated APEX to the latest version 3.2
At the database I simply created a database link pointing to the same schema the APEX-application is running at. I tested the database link.
I then produced a simple test application with just one Report (I also tried a PPR-report with the same result) that displays orders with a query in line with this:
<pre>
select o.order_id, i.order_item_id, i.quantity, p.product_name, i.unit_price, i.unit_price * i.quantity amount
from demo_orders@ckh o, demo_order_items@ckh i, demo_product_info@ckh p
where o.order_id = i.order_id
and i.product_id = p.product_id
order by o.order_id, i.order_item_id
</pre>
When I ran this application, I was sometimes able to see the report without an error, sometimes a shared server process broke. You can watch the processes breaking by opening the admin/bdump directory and see how the database writes trace files for the shared server processes.
Interesting to see is that the error happens not only when you try to see the report. If you hit the edit page link while running the page or if you submit the page definition with the link query in it, the same is likely to happen. You can see this error happening when APEX offers you to download the call to wwv_flow or the f-procedure. The contents of this download then is:
<pre>IBMPC/WIN_NT-8.1.0</pre>
with some binary information in front of the message.
Another bug I'd like to add came up when I was lucky to see the report with the PPR-template. I tried pagination but this wouldn't work. Looking into this, I found the following link:
<pre>
javascript:html_PPR_Report_Page(this,'R2060428410112776','javascript:$a_report('2060428410112776','16','15','15');')
</pre>
To my understanding this can't work at all if you look a the apostrophes. So how to proceed with this???
This to me is a severe problem, as I wanted to utilize APEX as a frontend for a production database to report the contents. I was informed by Varad that a way around this is to use an Apache access to Oracle XE but as far as I'm informed, this forces me into a licenced version in order to be able to run mod_plsql.
I read about the mod_owa-approach, but the programmers state that this is not compatible with APEX. So my question is: Do you have any suggestion on how to proceed with this?
Thanks,
Jürgen
Edited by: j.sieben on May 27, 2009 5:41 PM

Any idea for high display resolution in application sharing server ?

Hi.
I installed EP6 SP 13 with KMC and configure collaboration feature.
I tested application sharing and It works.
Then, I found problem.
Problem is that application sharing server doesn't support 1400x1050 display resolution. (only works till 1280x1024)
Is there any idea for solving this issue ?
Regards, Arnold.

Hi Arnold,
I'm afraid this screen resolution is not yet supported. The official supported screen resolution is 1024x768 ! but as you stated it <b>can</b> work wit 1280x1024. You could open an OSS ticket and ask the KM Development for plans on supporting higher resolutions in application sharing and let us also know.
Hope this helps,
Robert

Oracle shared server default connection

We are currently trying to use shared server on an Oracle 11.1.0.7 standard edition database.
We don't have any problem regarding parameters or performance yet. We can connect either with dedicated or shared connection.
Our problem or issue is with tnsnames.ora.
trdb =
(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = X.X.X.X)(PORT = 1521))
(CONNECT_DATA =
(SID = orcl)
We do not specify if this connection is shared neither dedicated. Connection defaults to dedicated and we would like to force that users connect to a shared server connection.
It would be really usefull to avoid having to go client by client on remote sites. We do no have any centralized management tool to change the file (not on remote sites).
We could, of course make the application to distribute a new file, but since every client is unique, it could be risky.

Try to use SERVICE_NAME instead of SID in tnsnames.ora and make sure this service is mapped to a dispatcher in database init. file.
Example with 11.2.0.1:
1. DISPATCHERS parameter
SQL> show parameter dispatchers
NAME                                 TYPE        VALUE
dispatchers                          string      (PROTOCOL=TCP) (SERVICE=DB112XDB)
max_dispatchers                      integer2. TNSNAMES.ORA:
$cat tnsnames.ora
DB112 =
(DESCRIPTION =
   (ADDRESS_LIST =
     (ADDRESS = (PROTOCOL = TCP)(HOST = lx01.localdomain)(PORT = 1521))
(CONNECT_DATA =
   (SERVICE_NAME = DB112XDB)
)3. Test with SQL*Plus:
sqlplus system/xxx@DB112 @tss
SQL*Plus: Release 11.2.0.1.0 Production on Mon Feb 15 21:37:35 2010
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select username, program, server, service_name
2 from v$session
3 where server<> 'DEDICATED';
USERNAME                       PROGRAM
SERVER    SERVICE_NAME
SYSTEM                         [email protected] (TNS V1-V3)
SHARED    DB112XDB

Port use in Shared Server (MTS)

Hi,
Before I start; let me state it clear: If I had a choice to refuse shared server, then I would. But I am under pressure of management and other limitations. Therefore I have no option but to use shared server.
The current situation is: We use dedicated connections and plan to convert it to shared servers. There is a firewall between application server and database. This firewall only allows to some predetermined ports (such as 1521). We want to learn if we will be affected by firewall if we use shared server structure. When we use "lsnrctl services" we see that dispatcher ports are assigned automatically. (And these port numbers are between 40.000 and 50.000)
I want to be sure about how listener works. As we think, there can be two scenarios:
1. When a user connects to database, it only works with listener. Listener is the bridge between user and client. Therefore dynamically assigned port number to dispatcher is not important. And firewall will not be an issue. Because user can access listener and listener is the servant between dispatcher and client. (So no change is needed for firewall.)
2. Dispatcher's port is very important. Because after user is connected to the listener, user is assigned to a dispatcher and user is connected to database through that dispatcher's port. (Therefore we have to make changes in firewall.)
Which scenario is true? Do we have to change our firewall configuration?
Thanks for the all support...
Cagatay
BTW, I know it is possible to assign static port numbers to dispatchers. But if it is possible to use shared server without changing dispatcher settings, we would prefer this. (Without changing dynamic port behave of dispatcher.)

Yes,
The basic architecture.
The listener is a broker only. There are no permanent connections between clients and the listener.
The listener spawns a thread (the dedicated server process), this thread uses a different port.
This is called 'port redirection'.
A dispatcher can handle about 35 connections.
You can fix the port of a dispatcher. but as soon as the number of clients increases, you will be forced to open additional ports.
Your best bet is to set up Connection Manager to handle traffic between client and server, doing so you only need two ports.
The server communicates with Connection Manager.
Connection Manager is not installed by default.
Sybrand Bakker
Senior Oracle DBA

What found dead shared server error mean?

Please, I found the error found dead shared server in my alert.log file and I need to know what cause this error?
If it is critical?
What I should look up?

There is a known issue with using heterogenous services routine and MTS. Kuljeet is correct. Most probably you are hitting bug 3243584. You may have to check with oracle support on this!
-Ramesh

Found dead shared server

every day i found this message in the db log :
"Tue Mar 29 22:21:08 2005
found dead shared server 'S000', pid = (10, 5)
Wed Mar 30 13:51:58 2005
found dead shared server 'S000', pid = (10, 6)"
what do it means ??
it is danger for the databse ???

mrashid07 wrote:
In /bdump oracle only provide this information---
found dead shared server 'S000', pid = (17, 49)
How can I find out these processes (17, 49) which made the dead lock event??? There's no evidence from this message that the process was terminated due to a dead lock event.
Oracle also does not terminate a dead lock process - it raises a deadlock exception, allowing the process to catch this exception and re-act on it.
When Oracle does terminate a process, it will be due to some kind of fatal error. In which case there will be an ORA-0600 or similar error message in the alert log, together with a trace file reference (or cdmp ref) that contains the technical details as to what happened.
Dead shared servers are usually caused by an external process (or user) explicitly issuing a command to terminate the shared server process. E.g. killing the shared process at o/s level (using the o/s CLI), or via Oracle using the "+alter system kill session+" command.
You have not shown any evidence yet to the contrary - so the only conclusion that can be made thus far is that Oracle is not an issue here, but application code and/or users are.

"found dead shared server" in alert.log

Hi.
I am getting the following message in the alert log of 10.2.0.2 database.
Fri Feb 2 11:13:54 2007
found dead shared server 'S005', pid = (32, 3)
Fri Feb 2 11:14:24 2007
found dead shared server 'S005', pid = (32, 4)
Fri Feb 2 11:59:48 2007
found dead shared server 'S001', pid = (11, 1)
found dead shared server 'S005', pid = (32, 5)
Fri Feb 2 12:00:04 2007
found dead shared server 'S001', pid = (80, 165)
found dead shared server 'S001', pid = (80, 166)
What does it mean actaully...
will it affect(what impact) my database.
Thanks
JD

Hi,
Are you using MTS feature? If yes,
Then as given in the site:
http://searchoracle.techtarget.com/tip/0,289483,sid41_gci1018471,00.html
major issue I have seen with MTS is the dispatcher process getting abruptly killed. For some unknown reason the dispatcher process all of a sudden dies, killing the connected sessions. The following is an extract from the alert.log file for one such error:
Wed Sep 8 09:07:35 2004
Errors in file /u01/bdump/abc_d050_521.trc:
ORA-07445: exception encountered: core dump [00000001026BA2D4] [SIGSEGV] [Address
not mapped to object] [0x000000018] [] []
Wed Sep 8 09:07:45 2004
found dead dispatcher 'D050', pid = (667, 207)
The dead dispatcher process is restarted once pmon cleans the in-doubt sessions. The workaround for this issue is to turn off the DCD (dead connection detection) feature. Set SQLNET.EXPIRE_TIME = 0 in sqlnet.ora file. This issue occurred in v9.2.0.4 and v9.2.0.5 and Oracle is currently working to resolve the same.
I think you are not using MTS feature, otherwise you would have received errors
like above & trace file would have been generated & error.ORA-07445
If you are not using MTS feature,
set the initialization parameter shared_servers = 0. also make sure that the parameter dispatcher is not set (it has no default) to anything.
Message was edited by:
Seema

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

Shared server issues

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