The Distributed Transaction Coordinator (MSDTC) service is a component of modern versions of Microsoft Windows that is responsible for coordinating transactions that span multiple resource managers, such as databases, message queues, and file systems. MSDTC is included in Windows 2000 and later ...

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MSDTC - Communication with the underlying transaction manager has failed (Firewall open, MSDTC network access on)

I'm having problems with my ASP.NET web forms system. It worked on our test server but now we are putting it live one of the servers is within a DMZ and the SQL server is outside of that (on our ...
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538 views

Does Sql Server Express supports MSDTC

I need MSDTC(Microsoft Distributed Transaction Coordinator) in one of my application. I am not sure whether it is available on Sql Server Express editions. I googled on MSDN and haven't got clear ...
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112 views

Failed to Attach DB on replicated SAN

We currently have a clustered SQL Server 2005 which has replicated SAN disks for our DR solution, to test DR we break the SAN synch and then attach the various DB's on the DR server. Our web servers ...
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396 views

SQL 2005 Cluster - How to move MSDTC

We currently have a 2 node (Win2003) SQL 2005 Cluster running 2 instances. We need to move all drives to a new SAN but are pondering over how to move the DTC that is currently 'logging' te Quorum ...
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408 views

BizTalk/MQ - DCOM was unable to communicate with the computer xxx using any of the configured protocols

I've read the other questions on this same error, but don't see a close match to this scenario. We got 18 of these last night between 12:17:13 and 12:39:37 on Win 2008/R2. It caused us to lose ...
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MSDTC - COMException

We currently have 4 load balanced web servers connecting to a SQL 2005 database server. On the web servers is IIS 6 which has our Dot Net web services installed and Dot Net COM+ components also in Dot ...
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656 views

MSDTC Port 135 open bi-directionally

I have two servers, a web application server and an SQL Server database running on its own server. I have a firewall between these two servers. Do I have to open port 135 on both the SQL Server and ...
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132 views

MSDTC is unavailable, but only in one direction?

I have DTC enabled on 2 servers - a web server, and a database server. There are a few places in our web applications where we need to use DTC (via a TransactionScope) to manage transactions ...
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Distributed Transaction failure with Windows Server 2008

I'm having a problem with a new server setup. Distributed Transactions started by the application server to the new server are failing, but they work fine with an existing database server. I need ...
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How many MSDTC clustered services (if any) are needed for a multiple-instance SQL Server 2012 cluster?

I'm creating a new SQL Server 2012 cluster, running on 2 physical nodes (the O.S. is Windows Server 2012 R2); the cluster will host multiple SQL Server instances; the exact number is yet to be ...
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139 views

MSDTC Errors: QueryInterface failed for “ITransactionDispenser”: 0x8004d01c(XACT_E_CONNECTION_DOWN)

I’m having some issues with a server where MSDTC is not working properly. This started happening about two days ago. I’ve tried a number of different things including restarting the VM and I’ve ...
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224 views

Problems with DTC and IBM MQ

I've just run DTC Ping to try to find the cause of a MQ problem. It says the following: ++++++++++++Validating Remote Computer Name++++++++++++ 10-18, 10:30:31.508-->Start DTC connection test ...
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696 views

SQL Server 2012 - Linked Server to SQL Server 2000

I'm trying to use the SQLNCLI 10 driver to set up a Linked Server to a legacy SQL Server 2000 instance on our network. I understand you cannot use Version 11 as it doesn't support SQL Server 2000 ...
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238 views

What is the linux equivalent of MSDTC?

Windows has MSDTC to coordinate transactions across different resources. What is the equivalent technology in Linux?
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Outgoing connection fails on clustered Windows Server 2008 R2

I have a problem with outgoing connection on clustered Windows Server 2008 R2. I have two servers in the cluster, the problem came in the fact that the servers has stopped working with the domain. In ...