Contents
How to create a deadlock graph in XML?
Change the file extension from .xdl to .xml and open it in SSMS Figure 2: Deadlock Graph as XML in SSMS If you extracted your deadlock using Extended Events you can double click on the xml_report line in the event details which will open the xml description as an .xml file in SQL Server Management Studio Figure 3: Double click to get XML report
Where do I find deadlock report in XML?
When we click the xml_report field on the xml_deadlock_report event, the XML report of the deadlock will be opened. This report can be very helpful in understanding the details of the deadlock. Also, in the xml_deadlock_report event, we can see the deadlock graph and it offers a virtual representation of the deadlock.
How to see deadlock details in SQL Server?
We will right-click on the created extended event and select the View Target Data… to analyze the captured deadlock details. On this screen, we can display the deadlock details. When we click the xml_report field on the xml_deadlock_report event, the XML report of the deadlock will be opened.
Which is the easiest way to get information about a deadlock?
Conclusion. The deadlock graph is the easiest way to get information about a deadlock. A lot of information can be seen simply by looking at the graph, but usually more in depth information is required to be able to resolve the deadlock, such as the types of locks involved, the isolation level used etc.
How to analyze a deadlock in SQL Server?
Using the Extract SQL Server Events option on the File menu. Individual events can also be extracted and saved by right-clicking a specific event and choosing Extract Event Data. SQL Server Profiler and SQL Server Management Studio use a deadlock wait-for graph to describe a deadlock.
How to open a.xdl file in SQL Server?
On the File menu in SQL Server Management Studio, point to Open, and then select File. In the Open File dialog box, select the .xdl file type in the Files of type box.
What is the key lock ID in deadlock?
As I understand it the Key Lock ID is only an identifier which identifies the lock within context of the deadlock. This value appears only to be used in the deadlock discription and is not permanently stored. The important thing to take note of is the HoBt ID. This will show you which index the lock is on.
Where is the deadlock graph saved in SSMS?
The event that we are interested in is the Deadlock Graph. On the Events Extraction Settings tab you can choose to have the deadlock events saved to an XML File. This will save the event data to an .xdl file, which you can then open in SSMS.
How to get the deadlock graph in profiler?
The easiest way to obtain the deadlock graph is by using Profiler. You can use the standard TSQL_Locks template. The event that we are interested in is the Deadlock Graph. On the Events Extraction Settings tab you can choose to have the deadlock events saved to an XML File.
What is the definition of a deadlock in SQL?
A deadlock occurs when 2 processes are competing for exclusive access to a resource but is unable to obtain exclusive access to it because the other process is preventing it. This results in a standoff where neither process can proceed.