MSDTC attempts to enlist client machine in a distributed transaction

Posted by Ken on Stack Overflow See other posts from Stack Overflow or by Ken
Published on 2010-06-10T05:56:10Z Indexed on 2010/06/10 6:03 UTC
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Filed under:

c#

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linq-to-sql

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msdtc

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distributed-transactions

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system.transactions

Hi there

We're seeing the following intermittent warning logged by MSDTC:

A caller has attempted to propagate a transaction to a remote system, but MSDTC network DTC access is currently disabled on machine 'X'. Please review the MS DTC configuration settings.

However, MSDTC is disabled on machine X by design - it's a client machine, and has no business being enlisted in the transaction!

Several windows service endpoints hosting WCF services over TCP
Single SQL Server 2005 instance beneath
Linq to Sql
Remote client receives event callbacks over WCF/TCP

The issue is tricky to reproduce - usually following restart of services. We suspect a callback to the client machine is occurring within the context of a transaction.

Just wondering if anyone has seen similar issues??

Ken

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