Help trying to read sys.dm_exec_requests result

  • Hi Guys,

    Please could I get a hand understanding something that is really confusing me. I keep getting the following requests showing up in sys.dm_exec_requests:

    Command: EXECUTE

    Wait Type: NULL

    Wait Resource: Blank

    Wait_Time: 0

    Session_Id: 104

    Sql_Handle: 0x000000000000000000000000000000000000000000000000

    Plan_Handle: 0x000000000000000000000000000000000000000000000000

    What does the blank sql_handle and plan_handle mean and why is it executing if there is no handle? We are getting performance issues at the moment and I think that this is somehow linked up as they seem to become more frequent as the issue is occurring.

  • Do you notice if there are other entrees for the same session_id?

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • Not that I could see. The query was filtered by is user query though so it is a remote possibility

  • I was thinking it could be parallel processes. That would show why you couldn't see the statement and plan on all of them.

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

Viewing 4 posts - 1 through 3 (of 3 total)

You must be logged in to reply to this topic. Login to reply