Question

TEMPDB Full - plenty of disk space but still not working

Asked by: blueivy

I have Microsoft Office Accounting running on an SBS 2003 Premium Server (with full SQL Server 2005).

I am having a problem with the TempDB file which I believe is running out of space.

As this is the SQL group, I won't go into the Office Accounting side of things, however I tried to create a sample company to see if that would work. The error I get there is:

===
2009-01-06 14:30:50.64 spid56      Starting up database 'SampleServiceCompany2008'.
2009-01-06 14:30:50.96 spid56      Setting database option AUTO_CLOSE to OFF for database SampleServiceCompany2008.
2009-01-06 14:30:57.93 spid56      Error: 1105, Severity: 17, State: 2.
2009-01-06 14:30:57.93 spid56      Could not allocate space for object 'dbo.Large Object Storage System object:  450437288820736' in database 'tempdb' because the 'PRIMARY' filegroup is full. Create disk space by deleting unneeded files, dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup.
===

I have also had this error when doing it:

===
009-01-06 14:26:50.43 spid56      Starting up database 'SampleServiceCompany2008'.
2009-01-06 14:26:50.79 spid56      Setting database option AUTO_CLOSE to OFF for database SampleServiceCompany2008.
2009-01-06 14:26:56.92 spid56      Error: 17053, Severity: 16, State: 1.
2009-01-06 14:26:56.92 spid56      D:\Program Files\Microsoft SQL Server\MSSQL.2\MSSQL\DATA\tempdb.mdf: Operating system error 112(error not found) encountered.
===

I ran an sp_spaceused on TEMPDB with the following results:

===
database_name - TEMPDB
database_size - 11.44MB
unallocated space - 8.47MB

reserved - 1184KB
data - 512KB
index_size - 592KB
unused - 80KB
===

I'm not sure I understand this.

TEMPDB was set for 10% and Autogrow. I read somewhere that perhaps it was growing it fast enough to keep up with MOA so I set it to 10Mb and Autogrow but that resulted in immediate errors rather than it trying for a while and then failing.

I then set it to 20% and autogrow - same problem.

I have finally gave it an initial size of 20Mb for the database and 5Mb for the Log. When I did that I got an error "112 (error not found) while trying to expand the physical file". Error 112 looks like insufficient disk space (from some Googling). The C: drive has 6Gb free and the D: drive (where the TEMPDB database resides) has 68Gb free.

I'm very confused! Help?

I am not a SQL person, so if you have any suggestions please outline how I carry them out (as a lot of the SQL stuff I've read in forums while researching this kind of suggests you know exactly where sys.database is etc. - I don't :-))

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Asked On
2009-01-06 at 08:06:17ID24028578
Tags

moa sqlserver2005

Topic

MS SQL Server

Participating Experts
2
Points
150
Comments
14

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Answers

 

by: BrandonGalderisiPosted on 2009-01-06 at 08:18:39ID: 23305885

database_name - TEMPDB
database_size - 11.44MB
unallocated space - 8.47MB

11 MB is WAY!!!!! too small for tempdb.  You should set it to 1GB (500 data/log) MINIMUM.  Probably 2GB (1GB/1GB) to be safe.  You also should not set it to auto shrink.

 

by: blueivyPosted on 2009-01-06 at 08:36:08ID: 23306112

As I said above, I can't set it to anything. I get an error 112. Happy to set it to an initial size of 1GB if SQL would let me. Autoshrink is set to False.

The TEMPDB settings weren't set by me but were set either SQL itself when the database was created or some other database creation utility that maybe I used to move the Office Accounting database (I cannot remember for the life of me how I set this up on the server).

 

by: BrandonGalderisiPosted on 2009-01-06 at 08:39:16ID: 23306156

do a

select * from master.dbo.sysaltfiles

and see where tempdb is located.  Verify that the file exist.

 

by: BrandonGalderisiPosted on 2009-01-06 at 08:40:29ID: 23306175

Restarting SQL Server SHOULD recreate the file as long as the path exists.  Perhaps the move of the database included a restore of master and the old path for TEMPDB (from the old server) isn't valid on this server.

 

by: blueivyPosted on 2009-01-06 at 09:05:25ID: 23306488

Thanks for that.

The TEMPDB file does exist on the D: drive. It is timestamped today at 14:26 - any use in stopping the SQL instance, deleting the TempDB and log and starting it again to see if it recreates it properly or whether it throws an error?

 

by: BrandonGalderisiPosted on 2009-01-06 at 09:07:13ID: 23306515

Yes.  If it's a file system permission issue, you will be no worse off.

 

by: ScottPletcherPosted on 2009-01-06 at 09:38:37ID: 23306885

It does indeed sound like the db should expand by itself.

Just to be sure, verify that there is not a hard-coded max size specified for the tempdb.

Go into Mgmt Studio, select "New Query", and run this command:
EXEC tempdb.dbo.sp_helpfile

Scroll to the right and make sure "MaxSize" is "Unlimited" and not a fixed amount.

 

by: blueivyPosted on 2009-01-06 at 10:05:45ID: 23307187

I stopped the instance, deleted the tempdb files and started the instance again. The files were created as they should. I then went in and, as you suggested, changed the database and the log file to 1GB and it worked this time. Not sure why it worked this time and not before - problematic tempdb db / log files?

It unfortunately didn't fix the Office Accounting problem, but that isn't what I asked about!

 

by: BrandonGalderisiPosted on 2009-01-06 at 10:11:02ID: 23307231

"Your Suggestion" was in fact first suggested by me in http:#23306175

 

by: blueivyPosted on 2009-01-06 at 10:15:47ID: 23307279

Err, no it wasn't.

You suggested restarting the SQL instance which will recreate the file if it already exists. The SQL instance had already been restarted several times prior to posting the question and the file always existed. My suggestion was to stop the SQL instance, delete the tempdb file and then start it again. This allowed me to change the file sizes to 1GB (as you suggested) which it wouldn't allow me to prior to deleting the tempdb file (regardless of how many times it had been restarted).

The key to solving the problem was deleting the tempdb file which is what actually solved the problem. Everything else that you had suggested prior to that had already been tried.

 

by: BrandonGalderisiPosted on 2009-01-06 at 10:19:35ID: 23307319

"Everything else that you had suggested prior to that had already been tried."

If you had stated that you had already tried restarting SQL, perhaps I could have been of more assistance.  

 

by: blueivyPosted on 2009-01-06 at 10:25:23ID: 23307378

You were of great assistance. You helped solve the problem. I'm not sure where the issue is here.

I would have taken it as granted that before posting a question the SQL instance would have been restarted which is why I probably, subconsciously, didn't put it in there. Point taken.

I don't want to get into an argument over this so this is my last post on it. I thank you for your help. I've awarded 150 points for the question. If you don't feel that is sufficient and want to dispute that you can lodge an objection with the moderator.

 

by: BrandonGalderisiPosted on 2009-01-06 at 10:29:06ID: 23307409

"I would have taken it as granted that before posting a question the SQL instance would have been restarted which is why I probably, subconsciously, didn't put it in there. Point taken."

Although I often make assumptions, I don't make it a habit.  I try to read peoples complaints fully before offering up a suggestion.  

You are entitled to award points however you see fit.  I guess to me it's a matter of "why not give the full 250".

20120131-EE-VQP-002

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