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Which sessionid has the most locks in a SQL Server instance

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Quick post today. Was playing around with something on Friday night, thinking how to answer this question quickly whilst looking a live performance problem. I have a huge selection of ready to go DMV based queries, aimed at targetting all types of performance problems, but this was one I didn't have. The answer of course is beautifully simple through the magic of DMVs. Do you remember when these didn't exist? Sometimes it's easy to forget :-) The answer and a good one to have in your troubleshooting code toolbox:

select

request_session_id, count(*)

from

sys.dm_tran_locks

group

by request_session_id

Comments

  • Anonymous
    February 02, 2009
    PingBack from http://www.anith.com/?p=4610

  • Anonymous
    February 11, 2009
    Last week I wrote about the initial diagnosis of this problem, and now here's the follow up. So if you