Should i use msdtc

In this case, node1 has an in-doubt failed transaction. To resolve the transaction, node2 MSDTC tries to contact the node1 for checking the transaction status. Else, it uses the configured value in the in-doubt exact resolution SQL Server configuration. In the SQL Server always on configuration, we use the failover cluster base for an availability group. No, SQL does not stop the distributed transactions for AG databases even it is not configured for the distributed transactions.

SQL Server uses two-phase commit protocol for the distribution transaction once the user issues a commit statement. Looking back at Component Services you will see we have a drop-down box where we can select our Default Clustered Instance. I will describe those scenarios in the Quantity section but know that they must be manually mapped per instance to override using the default, so this is where our order ends.

A paramount concept to understand is how to make the DTC highly available. This makes it appear that everything is working, and it is, but it is not exactly highly available. Since it simply works out of the box, things get left this way until they end up with a suspect database and error messages that look like this:.

See the SQL Server errorlog for more information. Here is what that would look like. This process is attempted 3 times.

Is there some availability in this configuration? Yes , since the new primary node attempts to discover the transaction status from the failed primary node.

Is it highly available? No, and the prior error messages demonstrate that. If the old primary does not come back online and fast enough prior to the 3 attempts from the new primary, SQL must decide whether to commit or roll back.

Nodinite guarantees the data integrity and the outcome of client-server operations using the Microsoft Distributed Transaction Coordinator Windows Service that ships with Windows Server. You must enable and configure the Microsoft Windows Distributed Transaction coordinator for use with Nodinite as detailed on this page. The Distributed Transaction Coordinator DTC service coordinates transactions that update transaction-protected resources, such as databases, message queues, BizTalk Server etc.

These transaction-protected resources may be contained on a single system or distributed across your network. Nodinite is built on many Enterprise-grade services and can scale, with the only limit being your money.

The coding is further outlined on the ' Transaction Class ' page. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 5 years, 7 months ago. Active 5 years, 7 months ago. Viewed times. Improve this question. Arvo Bowen Arvo Bowen 5 5 gold badges 15 15 silver badges 33 33 bronze badges. A Hyper-V Failover Cluster safeguards against a cluster node failure.

It doesn't safeguard against VM failure, application failure, database failure, etc. It looks to me like you've taken one step forward and two steps back. Add a comment. Active Oldest Votes.