SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Urgent help!


Urgent help!

Author
Message
S_Kumar_S
S_Kumar_S
Say Hey Kid
Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)

Group: General Forum Members
Points: 686 Visits: 1062
Hi
I ran a xp_cmdshell 'copy con.....' command on my live server to create a file. It didn't work for some reason and I killed the SPID that issued this command. Now I see that if I run:
select * from sys.dm_exec_requests
where database_id=77, I see that SPID in KILLED/ROllback status. It simple is not going since last 6-7 hours. And I believe it will stay there indefinitely.
Now I have to bring my database in SINGLE USER Mode but this UnKilled SPID blocks me and I am stuck. I don't see anything in task manager either.
Is there a way to get out of it without recycling the server?

Thanks

-----Table Proc Index Performance TSQL &&%$#@*(#@$%.......------------
Deep Into SQL Jungle
ChazMan
ChazMan
SSC Veteran
SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)

Group: General Forum Members
Points: 223 Visits: 247
that rollback transaction has to complete. If you reboot, it will depend on your recovery settings what will happen.

--------------------------------------------------------------------------
When you realize you've dug yourself into a hole....Step 1...stop digging.
S_Kumar_S
S_Kumar_S
Say Hey Kid
Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)

Group: General Forum Members
Points: 686 Visits: 1062
But the transaction that xp_cmdshell did was quite small: just creating a test file. it should have taken less than a second to roll it back.
Will killing the explorer.exe from task manager help here?

-----Table Proc Index Performance TSQL &&%$#@*(#@$%.......------------
Deep Into SQL Jungle
Jeff Moden
Jeff Moden
SSC Guru
SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)SSC Guru (87K reputation)

Group: General Forum Members
Points: 87418 Visits: 41113
S_Kumar_S (4/22/2013)
But the transaction that xp_cmdshell did was quite small: just creating a test file. it should have taken less than a second to roll it back.
Will killing the explorer.exe from task manager help here?


This is a known issue with killing any spid. If it has 0% to go but stays there, check to see if it's using CPU time. If it's not, just ignore it and the next service bounce will take care of it. It it is using CPU time, try to find the spid the actual xp_CmdShell command used (tougher than it sounds) and kill that. Doing so will resolve the other 0% rollback spid.

Otherwise, like I said, it's a known problem and it's going to take restarting the service to take care of the problem.

And, no... don't ever kill explorer.exe from Task Manager.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
ChazMan
ChazMan
SSC Veteran
SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)SSC Veteran (223 reputation)

Group: General Forum Members
Points: 223 Visits: 247
Thanks Jeff.

--------------------------------------------------------------------------
When you realize you've dug yourself into a hole....Step 1...stop digging.
S_Kumar_S
S_Kumar_S
Say Hey Kid
Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)

Group: General Forum Members
Points: 686 Visits: 1062
Thanks Jeff. I also figured from different articles that it can be solved by service bounce. But problem is the bounce is scheduled for weekend and I have to move the log file of this DB to another drive by taking it offline. Can I safely take it offline and move file with the Killed/Rollback still there? It's not taking any CPU and estimated time is 0.

-----Table Proc Index Performance TSQL &&%$#@*(#@$%.......------------
Deep Into SQL Jungle
GilaMonster
GilaMonster
SSC Guru
SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)SSC Guru (88K reputation)

Group: General Forum Members
Points: 88429 Visits: 45284
You won't be able to take the database offline with a session still rolling back. Restart the SQL instance, that will remove that SPID, then you'll have no trouble taking the DB offline to move it.

DO NOT try to kill OS threads, you could crash SQL.
http://sqlblog.com/blogs/linchi_shea/archive/2010/02/04/killing-a-sql-server-thread-don-t.aspx

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


S_Kumar_S
S_Kumar_S
Say Hey Kid
Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)Say Hey Kid (686 reputation)

Group: General Forum Members
Points: 686 Visits: 1062
And what about detach?

-----Table Proc Index Performance TSQL &&%$#@*(#@$%.......------------
Deep Into SQL Jungle
e4d4
e4d4
SSC-Addicted
SSC-Addicted (465 reputation)SSC-Addicted (465 reputation)SSC-Addicted (465 reputation)SSC-Addicted (465 reputation)SSC-Addicted (465 reputation)SSC-Addicted (465 reputation)SSC-Addicted (465 reputation)SSC-Addicted (465 reputation)

Group: General Forum Members
Points: 465 Visits: 2399
Same as taking the db to offline. The only way, restart service.
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search