Home Forums SQL Server 2005 SQL Server 2005 Performance Tuning DeadLock RE: DeadLock

  • October 6, 2010 at 6:45 pm

    #1233224

    Craig Farrell (10/6/2010)

    WayneS (10/6/2010)

    Research links, no. But I've seen deadlocks caused by parallelism before myself... so self-research - yes.

    Well, in that case, Amit, try a MAXDOP 1 and see if that helps your deadlocking problems.

    Thanks Wayne, learned something new today. 🙂

    Before you do that... can we see the deadlock graphs to see if this is a factor.

    (What I saw was an update that was updating data and indexes in separate threads... and they deadlocked on each other.)

    Wayne
    Microsoft Certified Master: SQL Server 2008
    Author - SQL Server T-SQL Recipes

    If you can't explain to another person how the code that you're copying from the internet works, then DON'T USE IT on a production system! After all, you will be the one supporting it!
    Links:
    For better assistance in answering your questions
    Performance Problems
    Common date/time routines
    Understanding and Using APPLY Part 1 & Part 2