Getting Off Of Profiler, A Twelve-Step Program

Wayne Sheffield has a blast from the past, repeating an old T-SQL Tuesday to show how to use Extended Events:

Now that you have this XE session scripted out, it can be easily installed on multiple servers. If you encounter a deadlock problem, you can easily start the XE session and let it run to trap your deadlocks. They will be persisted to a file dedicated for the deadlocks. You can use my Deadlock Shredder script at http://bit.ly/ShredDL to read the deadlocks from the file and shred the deadlock XML into a tabular output.

Note that the default system_health XE session also captures deadlocks. I like to have a dedicated session for just deadlocks. As lightweight as XE is, sometimes it may benefit a server to turn off the system_health session. Additionally, Jonathan Kehayias has a script that will take a running trace and completely script out an XE session for it. This script can be found at https://www.sqlskills.com/blogs/jonathan/converting-sql-trace-to-extended-events-in-sql-server-2012/. Even though this script is available, I like to figure things out for myself so that I can learn what is actually going on.

Extended Events are extremely useful for administrators, typically with a fraction of the overhead cost of  server-side (much less Profiler) traces.

Related Posts

Writing Extended Events To Blob Storage

Arun Sirpal shows how to write an Azure SQL Database extended events session to blob storage: Last year I wrote about Azure SQL Database extended events (https://blobeater.blog/2017/02/06/using-extended-events-in-azure/)  and gave an example where I was capturing deadlocks via the ring buffer. Ever since then I wanted to do a follow-up post but using Azure storage as […]

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Viewing Deadlock Graphs With The system_health Session

Jes Borland shows how you can avoid using trace flags 1204 and 1222 and view deadlocks from the system_health Extended Event: This one isn’t bad, but imagine a multi-statement deadlock, or a server with several deadlocks in an hour – how do you easily see if there were other errors on the server at the […]

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