Understanding on Oracle services for Microsoft Transaction Server frm dba point of view

Hi ALL,
i read : -> https://docs.oracle.com/database/121/NTMTS/recovery.htm#NTMTS003
Need help to further confirm my understanding on what i read.
I am coming from the DBA angle... .
the functionality of the Microsoft Transaction server is integrated within the operating system as a COM+ server and as a .NET server, "
can i say these is the application servers ?
and the Microsoft Transaction distributed co -ordinator components is part of it.
Question, i don't install the Oracle Recovery Services on the above system right?
Question 2, as a dba, my only concern is to make sure the Oracle Services for Microsoft Transaction Server is installed. Is this correct ?
plus making sure to create the OraMTS administrator to run the recovery job to check for in-doubt transaction.
Question 3:
is this Oracle services for Microsoft Transaction Server used only when an application useses multiple databases in an env?
Can i say that when there is no user MTSSYS in my database, Oracle services for MTS is not used?
The reason why i ask is i am upgrading/ migrating my database and this database don't work with more then 1 database or the application does not work with more then 1 databases.
I ask the apps team all they say is that they are also not too sure. Thus need help/ advice.

Daniel,
In pre-8.1.7.4.0 beta implementations, your application server e.g. IIS or MTX.EXE hosts MTS transactional components. When such components acquire OLEDB or ODBC connections to Oracle and external service setup for that database i.e. OracleMTSService<id> joins the MTS transaction on behalf of the Oracle database which quite often runs on a non-Windows platform e.g. Solaris. We restrict each database to have one and only such service. This brings in scalability and availability issues. In 8.1.7.4.0 we have embedded the transaction join and commit logic in the clientside dll. There is no OracleMTSService<id> for a given database. The only service needed is a recovery service one per Windows machine on which Oracle Svcs For MTS is installed. This service is automatically created on installation of the product and doesn't connect to the databases. Instead the involved databases connect to the service via HTTP to resolve any MTS-related transactions that are in-doubt.

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Thanks
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

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adil

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adil

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Hi.
I have the same problem, one which works and another which don't (almost though).
I got most of it to work by taking the mtsservices registry entry from the server that works and put it on to the other after i have made the service in Oracle management console for mts.
Now i can search, delete, change but not make a new entry into the database.
And thats where i'm stuck now.
Hope it helps a bit..
Michael
Greenland

I can't start Oracle Services for MTS

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ie5

Daniel,
In pre-8.1.7.4.0 beta implementations, your application server e.g. IIS or MTX.EXE hosts MTS transactional components. When such components acquire OLEDB or ODBC connections to Oracle and external service setup for that database i.e. OracleMTSService<id> joins the MTS transaction on behalf of the Oracle database which quite often runs on a non-Windows platform e.g. Solaris. We restrict each database to have one and only such service. This brings in scalability and availability issues. In 8.1.7.4.0 we have embedded the transaction join and commit logic in the clientside dll. There is no OracleMTSService<id> for a given database. The only service needed is a recovery service one per Windows machine on which Oracle Svcs For MTS is installed. This service is automatically created on installation of the product and doesn't connect to the databases. Instead the involved databases connect to the service via HTTP to resolve any MTS-related transactions that are in-doubt.

How to get "Oracle Services for MTS" working?

I've implemented the microsoft code example (see at the bottom) for the use of distributed transactions (with system.transactions and MTS support). The code works fine as long as I use only MS sqlserver.
Well, I tried one connection to an oracle database and one connection to the sqlserver - and here the trouble starts ;-)
Oracle doesn't care about the transaction. After the command is executed the changes are made to the oracle database at once (no commit has occured at that point) even if the second command isn't successfull.
I suppose at the moment that the problem must be something around the interaction between MTS and oracle database, more precisly the oracle Services for MTS.
I've installed the odp.net client (ODAC1020221.exe).
The installer tells me that oracle data access components 10.2.0.2.21 and within the Oracle Services for MTS are installed.
But I cannot find a service with that name in the service list, OracleMTSRecoveryService is listed, but I'm not sure if that's the right one.
So here are my questions:
What's the name for 'Oracle Services for MTS' in the services list?
Do I have to install more than the odp.net client to get the MTS support running?
Is there a mistake in the code I'm running?
any help is welcome ...
thanx in advance!!!
And here's the code I'm working with:
[Transaction(TransactionOption.RequiresNew)]
public class Worker : ServicedComponent
[AutoComplete]
public void Test()
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.RequiresNew, new TimeSpan(0, 5, 0)))
DbProviderFactory theFactory = DbProviderFactories.GetFactory("Oracle.DataAccess.Client");
using (DbConnection connection1 = theFactory.CreateConnection())
try
connection1.ConnectionString = ".........";
connection1.Open();
DbCommand command1 = theFactory.CreateCommand();
command1.Connection = connection1;
command1.CommandText = "Insert into user (name, surname,benoid) values ('hans','wurst','32315134512345')";
object returnValue = command1.ExecuteNonQuery();
using (SqlConnection connection2 = new SqlConnection("Data Source=localhost;Database=UserManagement;Trusted_Connection=true;"))
try
connection2.Open();
//this command fails
SqlCommand command2 = new SqlCommand("Insert into uuuu (name, vorname) values ('hans','wurst')", connection2);
object retValue = command2.ExecuteNonQuery();
catch (Exception ex)
return;
catch (Exception ex)
return;
scope.Complete();
}

hey what's up you figured out your problem with M$DTC/Oracle 11i with ODP.NET trying to do a TransactionScope?
I saw your problem - and I ran into the same.
Re: 10g Express + ODP.NET (version 2.111.6.20) > support TransactionScope?
Trying to install "Oracle Services for MTS" not sure how but working on it now. Doc looks old however,
http://www.oracle.com/technology/tech/windows/ora_mts/index.html
Did you get pass this already?

Oracle Services for MTS in multiple servers - does not work

I am having problems with running transactional component (COM+) using Oracle Services for MTS.
I've been through pretty much all the messages in this forum, and I believe that I have
configured things correctly. Here are the details. Sorry for the long post. I wanted to give as much details as possible.
Database - Oracle 8i (8.1.7)
Machine I
1. Has Oracle Client 8.1.7 with 8.1.7.4.1 Patch set
2. Installed OraOLEDB version 8.1.7.3 and OraMTS
3. Configured Oracle MTS Service with MTSSYS against the database.
4. MSDTC is up and running
5. Transactional components registered properly in COM+.
6. Contains MDAC 2.6 SP1
7. Followed Microsoft Documentation (Using Oracle with MTS/COM+) to incorporate registry fixes
for MTXOCI - set OracleOciLib = oci.dll
          OracleSQLLib = orasql8.dll
          OracleXALib = oraclient8.dll
Machine II
1. Has Oracle Client 8.1.7 with 8.1.7.4.1 Patch set
2. Installed OraOLEDB version 8.1.7.3 and OraMTS
3. MSDTC is up and running
4. Transactional components registered properly in COM+.
5. Contains MDAC 2.6 SP1
6. Followed Microsoft Documentation (Using Oracle with MTS/COM+) to incorporate registry fixes
for MTXOCI - set OracleOciLib = oci.dll
          OracleSQLLib = orasql8.dll
          OracleXALib = oraclient8.dll
I have verified the database MTS_PROXY_INFO and the information seems to point to Machine I properly.
When I run the application on Machine I, things work OK, the component executes and performs its job
(just doing a transactional insert into a table is all). I try the same application on Machine II
and the application hangs and it waits forever in IDBInitialize->Initialize method, probably when trying to join a transaction. Here is a trace snippet
TID: eac (ENTRY) COracleSource::GetPropertyInfo(1, 0xb4f280, 0xb4f2e0, 0xb4f2e4, 0xb4f2d4)
TID: eac (EXIT) COracleSource::GetPropertyInfo(hr=0): 4240
TID: eac (ENTRY) IDBPropertiesImpl::GetProperties(1, 0x1cf1a70, 0xb4f2cc, 0xb4f2c8)
TID: eac (ENTRY) COracleSource::GetProperties(1, 0x1cf1a70, 0xb4f2cc, 0xb4f2c8)
TID: eac (EXIT) COracleSource::GetProperties(hr=0): 4107
TID: eac (EXIT) IDBPropertiesImpl::GetProperties(hr=0): 112
TID: eac (ENTRY) COracleSource::SetProperties(1, 0xa5630)
TID: eac (EXIT) COracleSource::SetProperties(hr=0): 4349
TID: eac (ENTRY) COracleSource::SetProperties(1, 0xb4f148)
TID: eac (EXIT) COracleSource::SetProperties(hr=0): 4349
TID: eac (ENTRY) COracleSource::Initialize()
TID: eac (EXIT) COracleSource::Initialize(hr=0): 231
TID: eac (ENTRY) IDBPropertiesImpl::GetProperties(1, 0xb4f0d0, 0xb4f0e8, 0xb4f0f0)
TID: eac (ENTRY) COracleSource::GetProperties(1, 0xb4f0d0, 0xb4f0e8, 0xb4f0f0)
TID: eac (EXIT) COracleSource::GetProperties(hr=0): 4107
TID: eac (EXIT) IDBPropertiesImpl::GetProperties(hr=0): 112
TID: eac (ENTRY) COracleSource::CreateSession(0x1cf32dc, 0x0, 0x0)
TID: eac (DTXN) COracleSession::FOraInit() - Session (194250c) created
TID: eac (EXIT) COracleSource::CreateSession(hr=0): 165
TID: eac (ENTRY) COracleSession::JoinTransaction(2030104, -1, 0, 0)
TID: eac (EXIT) COracleSession::JoinTransaction(hr=8004d00a): 139
I would appreciate any help in this matter. I need to get this running to go live.

Ganesh,
From the trace provided, it appears that the OraOLEDB had problems loading the OraMTS.DLL appropriately. Can you check to see if the OraMTS.DLL is in your %ORACLE_HOME%\bin and your PATH is set with %ORACLE_HOME%\bin included?
Another possibility is that an older version of OraMTS.DLL resides in your
%ORACLE_HOME%\bin. If you invoke "dumpbin /exports oramts.dll" at the DOS command line, one exported function should be called "OraMTSSvcEnlistEx". If you don't see this, then that means you should try reinstalling OraMTS 8.1.7 again.
Hope that helps.
- nari

Understanding on Oracle services for Microsoft Transaction Server frm dba point of view

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