Log File Auto Shrink Question
Nov 18, 2004
Hi, I am trying to automate shrinking the transaction log file on SQL server.
Every so often we get errors with our application using SQL server, in which I resolve by running the backup log and shrink log commands. However, recently I got the error: Could not allocate space for object 'table_name' in database 'database_name' because the 'Primary' file group is full. To resolve this I had to create another transaction log and then run the backup log and shrink log commands.
I know need to automate the process of shrinking the log file. I have checked and the Auto Shrink checkbox is ticked but these errors still occur.
How can I delete the additional log file I created and automate this task of shrinking the log file within SQL server? Any help would be appreciated...Thanks
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Feb 22, 2012
Is Auto shrink is good option where database is very critical and there is no down time?
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Oct 24, 2001
what's this : "auto shrink " db option in properties ???
in which case may i use this option ?
please help
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Dec 9, 2004
I am using MSDE in sql server 2000.
When the database data file size exceed 2G limit, I tried to shrink the db and it
reduced by about 100MB.
2 days later, I checked the db data file size and it was reduced to 550MB, which is
1/4 of the original db size!
Please kindly explain the reason of this case, and how can it be monitored
effectively?
Thank you.
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Apr 14, 2008
I would like to do an update statement to set auto shrinks to zero. A value of one means they are on. I have been using this select statement and manually changing them, but can't use it in a where clause.
select name, databasepropertyex(name, 'isautoshrink') shrink
from master.dbo.sysdatabases
I would like to do "where shrink = 1", but it won't work.
Any suggestions?
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Jul 13, 2007
Hi,
I recieved an alert that says 'The Auto Shrink flag for database is not set according to best practice.' Can anyone tell me where I can find this flag and what it shoul dbe set to?
Thanks
Af.
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Apr 21, 2015
Is it possible/advisable to change this setting with users connected? There are a number of web based users and an agent job running every 30 seconds.
USE [master]
GO
ALTER DATABASE [Bla] SET AUTO_SHRINK OFF WITH NO_WAIT
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Feb 16, 2006
Hello everybody,First: SQL Server 2000 sp3a, HP cluster server, MS 2003 server,database recovery model simpleTorn page detection:When I have this option turned on, processes conected with updating andwriting in database, was MUCH more slower, than if I've this optionturned off.It seams to me, that when this option is turned on, the sqlserver ismuch more slower by any operation connected with writing, than withoutthis option.This option is required for ensurance, that the data are writtenproperly on the media.My question is:if I have my database running under cluster, with RAID hd system, whichcontains write cache, with additional checking, that the data will bewritten correctly, is it necessary for me to keep this option turnedon?Auto shrink:When it is turned on, does it affect performance?Personaly, I don't think so, but somebody is insysting on it, and Iwould like to have an information from independent source about that.Best regardsMatik
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Jul 23, 2015
Is it possible to manually force/call/start the system AUTOSHRINK process? I have an issue that appears only when the engine shrinking process is running and I need this to reproduce my bug.
I know how to start a "regular" database shrink process with:DBCC SHRINKDATABASE(xxxx);, but this is not the same as one started from the database engine.
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Jul 20, 2005
I've production sql server 7 sp3 on windows NT. I had a 8GB data file ofwhich 5GB were used and 3GB were unused. I wanted to take back the unused3GB.So I did the following with EM GUI:1. I tried to "truncate fre space from end of the file". Didn't truncatethe file. I believe there was no empty space at the end of the file.2. Next I chose the option to "shrink file to 5GB". And to my horror thedata file instead of taking just 5GB took the empty spaces also and the sizeof the used data file went to 8GB.Any idea what's going on?TIA,SP
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Mar 27, 2000
I am looking for the correct procedure for shrinking a database file ,
please reply back if anybody knows the solution
Thanks
Ajay
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Oct 20, 1999
On a database with a log file that has an unrestricted file growth, the file size exceeds 1 GB. Since this excessive was caused by a badly written update statement, I want to reduce the size to about 200MB.
After reading the BOL I was convinced that I only need to take two actions: truncate the log file (to create some free space in the log file)and shrink it.
These are the statements I executed:
backup log ODS with truncate_only
dbcc shrinkfile (ODS_Log, truncateonly)
After I executed these statements - BTW, there were no errors - the file size was still the same. Can somebody tell me why?
Thanks,
Stef
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Aug 27, 1999
Hi,
I have created a new database in SQL Server 7 with the auto grow options set to on. I then added a whole load of new data to the table which made the transaction log file grow to 20Mb.
I then truncated the transaction log to remove all the completed transactions. The Enterprise Manager now shows the Log to only have 3MB of data in it but the file is still 20MB.
I have tried setting the truncate log on checkpoint option, and tried running DBCC SHRINK DATABASE and DBCC SHRINK FILE commands but these seem to have no affect on the file size.
Does anyone have any idea what I might have missed/done wrong?
Yours well and truly stuck,
Martin
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Oct 25, 2004
I have Disk Xtender 2000 which was made by OTG Software , Legato and now EMC. I have an NT 4.0 PC with Microsoft SQL 2000. I have a drive space problem and need to shrink a 38 gig .ldf file called OTG03.ldf I also have a 2 gig .mdf file called OTG03.mdf How can I shrink this .ldf file. I'm not a DBA so being specific is greatly appreciated.
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Dec 13, 2012
My DB's recover model is SIMPLE. Is it OK to schedule a SHRINK FILE only on the log files regularly? Any GOOD vs BAD about my plan? I want to do this because the log files keeps on increasing. Right now, the log file s on ENABLE AUTOGROWTH, FILE GROWTH = 10%, RESTICTED FILE GROWTH = 2,097,152.
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Apr 7, 2008
I am geting growth alerts and need to shrink a log file that is 99% full, but it won't let me. Here is the message I get.
The transaction log for database 'SOM_System' is full. To find out why space in the log cannot be reused, see the log_reuse_wait_desc column in sys.databases
What can I do in order to shrink this log file??
Thanks
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Apr 30, 2008
I have noticed many times, even after log backup, shrink file (SSMS) is not reducing the file size. Even though there is free space shown in SSMS.
Subsequently I change the recovery type to SIMPLE and shrink – that does the trick for me.
Does anyone know why does this happen? Is there a better solution?
------------------------
I think, therefore I am - Rene Descartes
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Jun 4, 2007
Hello,
I have a database that the '.mdf' file is just huge. The physical size on disk is approximately 110 gig. I run weekly maintenance plans to rebuild the indexes on it.
I ran the 'sp_spaceused' command and got the following results:
database size: 106996.25 MB
unallocated space: 9614.35 MB
reserved: 99716504 KB
data: 13968056 KB
index_size 4002184 KB
unused: 81746264 KB
I was trying to clear the unused space, the numbers are telling me that I have 81 gig of space unused, but no matter what I do the '.mdf' file will not shrink.
I ran the following command: DBCC SHRINKDATABASE ({dbname}, 10,TRUNCATEONLY)
Any thoughts?
Thanks for the help
Richard
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Sep 6, 2007
My database MDF file growth is high and due to space limitation i have to shrink the MDF file so how do i do that
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Jul 20, 2005
Hello,Database log file on MSsql2000sp3 is 27gb when database itsself 305mb.I attempted to shrink the log file with Enterprise manager,but it wantsto use a minimum of 26.xxx MB,approximatley 27gb of disk space.when running the dbcc shrinkfile (file_name) message returned is "allvirtual logs are in use'Any ideas how to reduce the log file?Thanks in advance*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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May 24, 2004
after backup the log with truncate_only,
dbcc shrinkdatabase('ABC', 10)
failed with following error:
Cannot shrink log file 2 (ABC_Log) because all logical log files are in use.
I have put above statements with a job running every night, just got the same error on shrinkdatabase.
Is there a way to shrink the log without stop-restart the sql server?
-D
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Jan 7, 2008
First off, I'm normally not one to shrink the hell out of data files (for obvious reasons), but this is a special case. We are setting up a mini test environment in preparation for migrating one of our systems to SQL Server 2005 (among other things).
The problem I have is that the test SQL Server I have to use has only about 50GB of disk space that I can allocate to databases, when the databases that I need to fit in there sit at around 130GB total. I've got 13 total databases that I have to fit in there. There are several logging tables in each, and lots of binary data that's really not needed for our testing. The first thing I did on my testing copies was to change the recovery model to simple, which chopped the log file.
So I've been truncating the logging tables and have been stripping out the unneeded data. I then have been running a script that I wrote to reindex, then shrink the individual files, then the database as a whole. Probably overkill, but it has worked on all of the DBs with the exception of one.
This particular DB is approx 21GB in total size (it's already come down from about 55GB), but when you look at the free space, it's showing 75% free inside the mdf file. I don't really care much about performance at this point, I just need to get the file size down and can't figure out how.
Any ideas?
BTW - this is the script that I wrote:
declare @tablename varchar(255)
declare @logfilename nvarchar(200)
declare @datafilename nvarchar(200)
declare @dbname nvarchar(200)
declare @sql nvarchar(1000)
set @dbname = ltrim(rtrim(db_name()))
set @logfilename = ltrim(rtrim((select name from sysfiles where lower(filename) like '%.ldf%')))
set @datafilename = ltrim(rtrim((select name from sysfiles where lower(filename) like '%.mdf%')))
/* Reindex Tables */
declare tablecursor cursor for
select '[' + table_schema + '].[' + table_name + ']' from information_schema.tables
where table_type = 'base table'
open tablecursor
fetch next from tablecursor into @tablename
while @@fetch_status = 0
begin
print 'Reindexing ' + @tablename
dbcc dbreindex(@tablename,' ',90)
fetch next from tablecursor into @tablename
end
close tablecursor
deallocate tablecursor
/*Shrink the crap out of the DB*/
set @sql = 'BACKUP LOG [' + @dbname + '] WITH TRUNCATE_ONLY'
print @sql
exec sp_executesql @sql
set @sql = 'DBCC SHRINKFILE([' + @logfilename + '], 1)'
print @sql
exec sp_executesql @sql
set @sql = 'DBCC SHRINKFILE([' + @datafilename + '], 1)'
print @sql
exec sp_executesql @sql
set @sql = 'DBCC SHRINKDATABASE([' + @dbname + '], 1)'
print @sql
exec sp_executesql @sql
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Jul 18, 2007
I have problem with my sql server developer edition.
I began reciving alerts regarding disk space, and found out that the msdb files are 5 GB!!! the data file is full, so I cannot shrink it, but the table usage shows only a few MB used by tables.
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Nov 24, 2015
I am trying to shrink the log file as it is eating my disk space. increased to 100GB..message after running the query"Cannot shrink log file 2 (mydatabase_log) because the logical log file located at the end of the file is in use.
(1 row(s) affected)
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
"
(1)use mydatabase alter database mydatabase set recovery simple with no_wait dbcc shrinkfile(mydatabase_log,1) database [mydatabase] set recovery full with no_wait
(2)USE mydatabase;
GO
Truncate the log by changing the database recovery model to SIMPLE.
ALTER DATABASE mydatabase
SET RECOVERY SIMPLE;
GO
Shrink the truncated log file to 1 MB.
DBCC SHRINKFILE (mydatabase_log, 1);
GO
-- Reset the database recovery model.
ALTER DATABASE mydatabase
SET RECOVERY FULL;
GO
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Sep 6, 2001
I have a database (sql server 7.0) that has some big unused space in the transaction log. I tried to shrink the transaction log, but it seems it is not working. I used the same procedures to successfully shrink the log file for database of SQL Server 2000.
Here are what I tried:
shrink database from the Enterprise Manager.
or
dbcc shrinkfile (Spoper_Log, 40)
backup log Spoper with truncate_only
Does anybody know how to shrink the transaction log in SQL Server 7? This is a production database and I can't afford to lose any data.
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Jun 23, 2008
hi
i have shrink log file of database use dbcc command
Message
Executed as user: sa. Cannot shrink log file 2 (abc.ldf) because all logical log files are in use. [SQLSTATE 01000] (Message 9008) DBCC execution completed. If DBCC printed error messages, contact your system administrator. [SQLSTATE 01000] (Message 2528). The step succeeded.
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Jul 25, 2007
i have a log file for a 200 meg database that is now over 80gigs. It is way out of control but DBCC shrink file just reports... the file is not part of a replication set.
Cannot shrink log file 2 (Database_log) because all logical log files are in use.
(1 row(s) affected)
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
I have read around and seen the suggestion to make a new database file and copy all the data to it. How is that done? I am using SQL 2005 Express with microsoft SQL server management Studio express.
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Jul 20, 2015
I am having DB with 4 ndf and 1 Mdf, In properties
1.MDF- Intial Size 5GB and Autogrowth 5GB
2. 5 NDF- Intial Size 20GB and Autogrowth 5GB.
So we are using the template and creating DB's.S o we have more than 30DB on same size. But Sometime actual data was very low not even 15 GB.
is it good if i shrink the DB?
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Apr 29, 2008
Hi guys
when we do manual Database shrink at normal office hours does it make any issues
or best way to control it
1. Does it lock database and runs the shrink statement.
2. at time of shrink users allowed or not.
3. transactions can be committed.
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Sep 29, 2006
hi,
how can I trunc an shring a db transaction log?
thanks for reply....
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Sep 2, 2007
Greetings, I have just arrived back into the country (NZ) and back into ASP.NET.
I am having trouble with the following:An attempt to attach an auto-named database for file (file location).../Database.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
It has only begun since i decided i wanted to use IIS, I realise VWD comes with its own localhost, but since it is only temporary, i wanted a permanent shortcut on my desktop to link to my intranet page.
Anyone have any ideas why i am getting the above error? have searched many places on the internet and not getting any closer.
Cheers ~ J
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Nov 6, 2003
A small database ABC with data only 5 mb but its log is growing everyday around 20 mb. I want to shrink its size like for other databases on daily bases.
1. backup log ABC with truncate_only
2. DBCC SHRINKDATABASE (ABC, 10)
got following error:
<<Cannot shrink log file 2 (ABC_Log) because all logical log files are in use.>>
with no_log also tried but have the same error when dbcc shrinkdatabase..
any idea?
thanks
-D
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Oct 4, 2007
Hi all
My Transactional log size increased to 39GB, it is in full recovery mode,
To regain the space, i have done the following
BACKUP LOG DB_NAME WITH TRUNCATE_ONLY
DBCC SHRINK_FILE (LOG_FILE_NAME,500)
But not able to regain the space in the hard disk.
No Transactional backups to truncate the log file were setup.
Can you please tell me why the space was released and what should i do further to clean up the sapce
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