How to configure OraMTS to allow WCF using MSDTC access OracleDB On unix?

Question

How to configure OraMTS to allow WCF using distributed transactions to access the ORACLE database On Linux/Unix ?
Env:
1. DB-tier node , ORACLE database (version: 11.2.0.1.0) on Redhat Linux server ;
2. middle-tier node ,Both the client, the MS DTC and Oracle MTS run on the same computer , Win7 x64 OS , installed .Netframework 4.0, ODP.net (ODAC112030), and configure the component services in a distributed transaction;
Has done the configuration:
1. ORACLE database on a Linux server (version: 11.2.0.1.0) has execute oramtsadmin.sql script;
2.ORACLE database on a Linux server (version: 11.2.0.1.0) has execute the following script, Creating an Access Control List (ACL);
BEGIN
-- Create the new ACL, naming it "OraMTSadmin.xml", with a description.
-- This provides the OraMTS administrative user e.g. MTSADMIN user FOO
-- the privilege to connect
DBMS_NETWORK_ACL_ADMIN.CREATE_ACL('OraMTSadmin.xml',
'Allow usage to the UTL network packages',
'ORAMTS', TRUE, 'connect');
-- Now grant privilege to resolve DNS names to the OraMTS administrative user
DBMS_NETWORK_ACL_ADMIN.ADD_PRIVILEGE('OraMTSadmin.xml' ,
'ORAMTS', TRUE,'resolve');
-- Specify which hosts this ACL applies to, in this case we are allowing
-- access to all hosts. if one knew the list of all Windows middle-tier,
-- these could be added one by one.
DBMS_NETWORK_ACL_ADMIN.ASSIGN_ACL('OraMTSadmin.xml','*');
END;
3. ORACLE database on a Linux server has set JOB_QUEUE_PROCESSES = 1000;
4. restart Oralce;
5.Test code as follows :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using JetSun.Infrastructure;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using JetSun.Infrastructure.ServiceModel;
using JetSun.DataModel.Cis;
using JetSun.TestFramework;
using System.IO;
using System.Data.EntityClient;
using System.Data.Objects;
using ConsoleApplicationTest;
using System.Transactions;
namespace Core.Tests
[TestClass]
public class EfOracleTest
public TestContext TestContext { get; set; }
[TestMethod]
public void GetEntities()
//string cn = "DATA SOURCE=HIS30;DBA PRIVILEGE=SYSDBA;PASSWORD=jetsun;PERSIST SECURITY INFO=True;USER ID=SYS;enlist=true";
string cn = "DATA SOURCE=HIS30;DBA PRIVILEGE=SYSDBA;PASSWORD=mtssys;PERSIST SECURITY INFO=True;USER ID=mtssys;enlist=true";
DbsSetting s = new DbsSetting(Dbs.IP, DbsProvider.Oracle, cn);
Runtime.SetDeploymentDir(TestContext.TestDeploymentDir);
File.Copy("E:\\VSTS\\MedicalHealth\\bin\\Debug\\DataModel.Cis.Oracle.dll", Path.Combine(TestContext.TestDeploymentDir, "DataModel.Cis.Oracle.dll"));
//File.Copy(@"E:\VSTS\MedicalHealth\DataModel\Oracle\DataModel.Cis\EdmDiagnose.csdl", Path.Combine(TestContext.TestDeploymentDir, "EdmDiagnose.csdl"));
//File.Copy(@"E:\VSTS\MedicalHealth\DataModel\Oracle\DataModel.Cis\EdmDiagnose.ssdl", Path.Combine(TestContext.TestDeploymentDir, "EdmDiagnose.ssdl"));
//File.Copy(@"E:\VSTS\MedicalHealth\DataModel\Oracle\DataModel.Cis\EdmDiagnose.msl", Path.Combine(TestContext.TestDeploymentDir, "EdmDiagnose.msl"));
File.Copy(@"D:\vsts_test\ConsoleApplicationTest\ConsoleApplicationTest\bin\Debug\Model1.csdl", Path.Combine(TestContext.TestDeploymentDir, "Model1.csdl"));
File.Copy(@"D:\vsts_test\ConsoleApplicationTest\ConsoleApplicationTest\bin\Debug\Model1.ssdl", Path.Combine(TestContext.TestDeploymentDir, "Model1.ssdl"));
File.Copy(@"D:\vsts_test\ConsoleApplicationTest\ConsoleApplicationTest\bin\Debug\Model1.msl", Path.Combine(TestContext.TestDeploymentDir, "Model1.msl"));
string connectionString = s.ToEdmConnectionString(typeof(EdmEncounter), false);
//// Initialize the EntityConnectionStringBuilder.
//EntityConnectionStringBuilder entityBuilder =
// new EntityConnectionStringBuilder();
////Set the provider name.
//entityBuilder.Provider = s.Provider.Provider;
//// Set the provider-specific connection string.
//entityBuilder.ProviderConnectionString = cn;
//// Set the Metadata location.
//entityBuilder.Metadata = string.Format(@"res://{0}/EdmDiagnose.csdl|res://{0}/EdmDiagnose.ssdl|res://{0}/EdmDiagnose.msl", "DataModel.Cis.Oracle, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null");
//entityBuilder.Metadata = string.Format(@".\Model1.csdl|.\Model1.ssdl|.\Model1.msl", "DataModel.Cis.Oracle, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null");
//connectionString = entityBuilder.ToString();
////using (Entities edm = new Entities(connectionString))
//// foreach (var item in edm.ENCOUNTERs.Take(10))
//// Console.WriteLine("{0}\t{1}", item.ENCOUNTERID, item.DISPLAYNAME);
//entityBuilder.Metadata = string.Format(@"res://*/EdmDiagnose.csdl|.\EdmDiagnose.ssdl|.\EdmDiagnose.msl", "DataModel.Cis.Oracle, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null");
//entityBuilder.Metadata = string.Format(@"res://{0}/", "DataModel.Cis.Oracle, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null");
connectionString = s.ToEdmConnectionString(typeof(EdmFeeInfo), false);
try
//using (TransactionScope tx = new TransactionScope())
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, new TimeSpan(0, 0, 30)))
//using (var dbcn = s.Provider.CreateConnect(connectionString))
using (EdmFeeInfo edm = new EdmFeeInfo(connectionString))
//edm.Connection.CheckOpen();
//using (edm.Connection.BeginTransaction())
foreach (var item in edm.FeeInfos.Take(100))
TestContext.WriteLine("{0}\t{1}", item.EncounterId, item.Amount);
item.Amount = item.Amount * -1;
edm.SaveChanges();
// using (EdmFeeInfo edm2 = new EdmFeeInfo(connectionString))
// edm2.Connection.CheckOpen();
// edm2.Connection.EnlistTransaction(Transaction.Current);
// foreach (var item in edm2.FeeInfos.Take(100))
// item.Amount = item.Amount * -1;
// edm2.SaveChanges();
// throw new NotImplementedException();
TestContext.WriteLine("-----------1---------------");
using (EdmFeeInfo edm = new EdmFeeInfo(connectionString))
foreach (var item in edm.FeeInfos.Take(100))
TestContext.WriteLine("{0}\t{1}", item.EncounterId, item.Amount);
throw new NotImplementedException();
catch (Exception ex)
TestContext.WriteLine((ex.InnerException ?? ex).Message);
TestContext.WriteLine("-------------2-------------");
using (EdmFeeInfo edm = new EdmFeeInfo(connectionString))
foreach (var item in edm.FeeInfos.Take(100))
TestContext.WriteLine("{0}\t{1}", item.EncounterId, item.Amount);
6. the test results are as follows:
4 125
4 835.45
4 3458
4 2350
4 200
4 100
4 300
4 123
4 234
无法列入分布式事务处理 （Could not be included in the Distributed Transaction）
-------------2-------------
4 125
4 835.45
4 3458
4 2350
4 200
4 100
4 300
4 123
The main error message:无法列入分布式事务处理 （Could not be included in the Distributed Transaction） , not use distributed transaction everything is normal.
My test environment MS DTC and Oracle MTS Recovery Service run on the same computer, but OracleMTSRecoveryService registry values under£º HKEY_LOCAL_MACHINE \ SOFTWARE \ Wow6432Node \ ORACLE \ OracleMTSRecoveryService ,not under HKEY_LOCAL_MACHINE \ SOFTWARE \ ORACLE,I do not know that there is no relationship.
Is not configured incorrectly?Who can help me, thank you very much!

Answer 1

Do you really have a requirement to push data from Oracle to Access rather than pulling data from Oracle to Access? It would be exceptionally unusual to push data from Oracle to Access.
Pushing from Oracle to Access would means that you want some Oracle process running that is updating Access. But you said that your Access database was on your "local desktop" which implies that it is not running on a server where it is always available. So that means that the Oracle process is going to regularly encounter (and report) errors because the Access database is not available. In turn, that's going to mean that your push process is either going to cause the underlying transaction to fail or it's going to mean that the push process is going to have to implement a fair amount of code to queue data to be pushed at a later date (and track all those changes) which is no small task. None of that seems particularly pleasant.
On the other hand, Access is designed to pull data from real relational databases like Oracle. That's the far more normal approach architecturally. It doesn't require an Oracle process, it doesn't generate errors on the Oracle database when the local desktop is down, etc.
And, of course, I'm assuming that introducing Access is even architecturally reasonable. Most organizations would be extremely hesitant to allow data from an Oracle database to get moved into Access because that quickly means that they lose control of the data from a security standpoint, that there are now multiple copies of the data floating around when changes & corrections are made, etc. That causes all sorts of headaches normally above and beyond the headaches that pushing from Oracle to Access would create.
Justin