![]() Also, Extended Events are meant to replace SQL Server Profiler as it is deprecated. If you want to customize the trace, like Profiler, just create a new session under Extended Events. Even when you can identify deadlocks using trace flags or Profiler, Extended Events provide us the ability to monitor and capture deadlock events and related information in a lightweight and customizable way. Stop the trace, then filter on “statement contains select” to see the select statements that ran while you were watching. It’s buffered, so you’ll have to wait a bit for it to appear. ![]() Then double-click TSQL to see live queries. If you created a filter earlier, clear it. No need to start a different application and connect. It’s like the default (Standard) or TSQL trace for Profiler, but far better for performance. Give it a try the next time a user says the system is getting slow.Īnd while you’re here, if you’re using a more recent version of SSMS, look at the bottom of the Object Explorer tree. Search for the “Server process ID” or SPID number of the oval with a blue X to identify the victim. If you click the Details tab, then double-click the Values column, you’ll see the exact SQL statements that were involved in the deadlock. In this case three SQL statements were involved in the deadlock. ![]() system_health Deadlock FilterĬlick one of the event rows, then click the Deadlocks tab to see information about the objects, indexes, and types of locks involved in the deadlock. If you expand system_health, click package0.event_file, then filter it for “name contains deadlock” (let’s make it easy), you’ll see all the recent deadlocks in your system. It writes to the ring buffer and an event file. In 2012 XE got a GUI and you can find the always-running session titled “system_health” in SQL Server Management Studio (SSMS) under Object Explorer > Management > Extended Events > system_health. In stark contrast to Profiler, the Extended Events engine is always running, even in production, and has been so since SQL Server 2008. SQL Server’s Extended Events (XE) contain a feature that makes it easy to track down deadlocks. ![]()
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