Automatic Transaction Log Shrinking
Jan 3, 2006
My transaction log blows out to more than 55 GB when I run an index rebuild on a fairly large table. It’s ok for the transaction log to get that big but I want to shrink it back down ASAP while maintaining the integrity of my transactional backups. I’m thinking of a process something like the following:
1.Full database backup
2a.BACKUP LOG database-name WITH TRUNCATE_ONLY
2b.dbcc shrinkfile(2,20,TRUNCATEONLY )
3.Full database backup
Is this the best way to shrink the T-Log while maintaining the integrity of my transactional backups?
My database is MSSQL 2000 sp4 in full recovery mode.
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Oct 16, 2007
I'd like to create a stored procedure to automatically shrink the transaction log file on a certain database monthly. As I am not the DB admin (it's a web-based db on a remote server), I'd like to put together a script to create the procedure so I can just send it to the DB admin to run. It seems like it should be pretty easy, but I'm still pretty new to SQL server. Is anyone able to give me some pointers?
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Feb 1, 2005
I have a webhost where it seems my control of my database is fairly restricted. I cannot backup the database because I don't have the necessary permissions. I cannot perform a DBCC SHRINKFILE (permissions) - and many other DBCC commands. I ran into a problem where my log file filled up during the middle of the day and impacted my operations - data was lost.
I found some TSQL for shrinking the log file, but the statement:
SET @TruncLog = 'BACKUP LOG [' + db_name() + '] WITH TRUNCATE_ONLY'; EXEC (@TruncLog)
will not execute because I cannot execute the BACKUP LOG command (permissions)...
Is there anything else I can do, or am I to far up the creek (w/o my paddle)??
Thanx
Jerry
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May 3, 2001
I've been trying to shrink my SQL 7 Transaction log after it had grown to 30+GB's. After running the command dbcc shrinkfile 'filename' and the new size, I'm getting a result set of:
DbId FileId CurrentSize MinimumSize UsedPages EstimatedPages
------ ------ ----------- ----------- ----------- --------------
6 2 640 128 640 128
(1 row(s) affected)
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
However my transaction log remains the same size. Any advise would be appreciated!
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Aug 28, 2001
I'm having a problem shrinking my transaction log. I have a 1GB database with a 500MB transaction log. The transaction logs are backed up every 10 minutes but it has grown to 2.2GB. I've tried backing the transaction log with TRUNCATE_ONLY and then tried doing a DBCC SHRINKFILE but it doesn't seem to work. I've checked if there were any old, long running queries but there is none. What else can I do to reduce the transaction log size?
I've had a thought to create a secondary log file and then delete the primary but that isn't allowed. Is there anyway I can make the secondary log file the primary and vice-versa? This way I should be able to delete the secondary log file to reclaim space.
Any assistance is appreciated...
Many thanks,
Michelle
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Oct 18, 2001
We have a database that was created with a 50 MB transaction log, that is set to autogrow. Due to activity the log periodically grows to over 200 MB. So we expanded it to 200 MB. But everytime the log is backed up, it shrinks to it's original size of 50 MB. The autoshrink option is not set, and no one is manually shrinking the log.
Any idea what could be causing this?
We are using SQL 7, SP 3.
Thanks!
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Jul 27, 2000
Hello all,
I am having a problem truncating a transaction log. The truncate and database shrink commands execute successfully, but do not reduce the size of the transaction log.
Thanks in advance for any help on this issue
-Matt
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Nov 29, 2005
Hi All,
I have steps that I take to shrink transaction log. One of the steps is to delete the transaction log after I detach the database. Am I losing any data by doing that?
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Aug 20, 1999
I have a transaction log with 22mb of used space and 2,632.50MB of free space. I tried using the following statement to shrink the log and it did not do anything:
USE DB
GO
DBCC SHRINKFILE (DB_log, 50)
GO
CHECKPOINT
Can anybody help me understand what is going on here?
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Jun 12, 2008
Gurus
My logfile for a DB grows very rapidly and grows to more than 10gb every night,i have scheduled a job to shrink this file.
Now in job activity monitor it is showing me a yellow triangle in front of the job and status as successfull and it has ran only for 1 second
It is not shrinking the logs
I have transactional replication implemented
My point is when the logfile grows more than 10 gb the job does not shrink the logs
I have got around 8 steps in thos job and this is the 7th step
Please Advice
Thanks
Nitin
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Nov 24, 2006
Hi All,My SQL server transaction log is getting bigger every day and my HDD ifrunning out of space.So i follow the MS KB about how to Shrinking the Transaction Log.After doing so the log is much much smaller as i can see the size of itunder enterprise manager.The problem is that the HDD still shows the same size.If i shrink the DB why the and reduce its size why the HDD does notshows it?Is there a way to clear the size from the HDD?Thanks All
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Mar 25, 2008
I'm using SSEE as part of SharePoint 2003. The transaction logs are growing rapidly but don't appear to clear down.
As its SSEE I've been so far unable to connect using Management Studio or Enterprise Manager, so using DBCC Shrinkfile isn't an option.
Can someone please help? I'm surprised that when installing SP I didn't get the option to choose a db type or location.
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Jul 23, 2005
Hi!I'm studying to have my MCSE 70-228 certification and I'm trying somethings with backing up transaction logs and shrinking it.Here's what I do:There is no activity in the database by the way.I have a transaction log of 1792 kb...I do the following command:BACKUP LOG TestDB TO TestDBBackupDBCC SHRINKFILE ('TestDB_Log',0)The transaction log is now 1280 kbI do the same command and finally my transaction log is now 1024kb...Any idea why it didn't shrink it at 1024 kb the first time?Thanks!Jeff
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Oct 2, 2006
Hello all,
I am currently having a rather pestering issue with my full/transaction log backups. It seems that after running either, my logs do not truncate and the file continues to stay @ the current size and eventually fill to the brim. This issue only began after mirroring was setup. Is there any differences in log file maintainence when dealing with Mirrored databases ? I made my last attempt to run backups and waited over the weekend for some hope that a checkpoint would occur and my file would be shrunk once again for normal use.
Any insight on this is greatly apprecieated.
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Oct 6, 2004
I am working on deploying my production DB's to a new server and am looking for some advice. The new server is running RAID-5 (the old one is RAID-0) but it only has one controller therefore I can not create another array group. So I was wondering since the disk setup is C: and D: (Virtual Drive) if I would see any benefits from placing my log files on C: and my Data files on D:?
The other question is related to the size of my log files. Some of the DB's were not created by me and there are no constraints in log file growth causing some very large TRANS logs. For example, there is a 100 MB DB with a 1 GB trans log. I restored the DB on my new server and truncated the log file (manually, the Ent Mgr Shrink DB tool doesn't work worth a hoot) to half the size of the DB and it functions properly. I was just wondering if this would cause any problems down the road if I did all of my DB's like this?
I am restricting log file growth to approximately half the size of the DB.
There is one DB that is 1.5 GB and the log file was set restricted to 2mb and it works fine, but I feel that I should bump this up a bit.
Any recommendations?
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Oct 12, 2002
Gurus,
I have inherited a SQL 2000 database ( (I am new to SQL DBA) and I found this when I was checking the db properites . The transaction log has grown bigger than the actual data file, I thought transaction log backups would truncate the inactive portion of the log file and shrink the transaction log, but it was not the case it seems, may be it was truncating the inactive portion of the log, but not shrinking it. This site does not have a job for truncating the data/log files periodically. What is the best method to deal this situation, how can I shrink the Transaction log quickly?,
All your suggestions are welcome.
TIA,
-Jay
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Jan 25, 2007
Hello,
I have a database that I am setting up in SQL Server 2005. Initially, I am doing very large imports of data. Every time I run an import, I am having the increase the size of my transaction logs, and now they are approaching 2 GB. Should these be purging themselves? I have to keep increasing the max size of the log so that I can get my data in. While this will work for now, it is not a long term solution, because I can see the log size growing quite large and the amount of space on the server obviously isn't infinite. Is there a setting that I can change so they will automatically purge? If not, how do I purge this information myself?
Thanks so much!
Christine
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May 31, 2008
Hi All
I'm getting this when executing the code below. Going from W2K/SQL2k SP4 to XP/SQL2k SP4 over a dial-up link.
If I take away the begin tran and commit it works, but of course, if one statement fails I want a rollback. I'm executing this from a Delphi app, but I get the same from Qry Analyser.
I've tried both with and without the Set XACT . . ., and also tried with Set Implicit_Transactions off.
set XACT_ABORT ON
Begin distributed Tran
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TRANSACTIONMAIN
set REPFLAG = 0 where REPFLAG = 1 and DONE = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.WBENTRY
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.FIXED
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.ALTCHARGE
set REPFLAG = 0 where REPFLAG = 1
update OPENDATASOURCE('SQLOLEDB','Data Source=10.10.10.171;User ID=*****;Password=****').TRANSFERSTN.TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
update TSADMIN.TSAUDIT
set REPFLAG = 0 where REPFLAG = 1
COMMIT TRAN
It's got me stumped, so any ideas gratefully received.Thx
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Feb 22, 2007
I have a design a SSIS Package for ETL Process. In my package i have to read the data from the tables and then insert into the another table of same structure.
for reading the data i have write the Dynamic TSQL based on some condition and based on that it is using 25 different function to populate the data into different 25 column. Tsql returning correct data and is working fine in Enterprise manager. But in my SSIS package it show me time out ERROR.
I have increase and decrease the time to catch the error but it is still there i have tried to set 0 for commandout Properties.
if i'm using the 0 for commandtime out then i'm getting the Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
and
Failed to open a fastload rowset for "[dbo].[P@@#$%$%%%]". Check that the object exists in the database.
Please help me it's very urgent.
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Feb 6, 2007
I am getting this error :Distributed transaction completed. Either enlist this session in a new
transaction or the NULL transaction. Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code. Exception Details:
System.Data.OleDb.OleDbException: Distributed transaction completed. Either
enlist this session in a new transaction or the NULL transaction.have anybody idea?!
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Dec 22, 2006
i have a sequence container in my my sequence container i have a script task for drop the existing tables. This seq. container connected to another seq. container. all these are in for each loop container when i run the package it's work fine for 1st looop but it gives me error for second execution.
Message is like this:
Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
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Jan 8, 2008
Hi,
i am getting this error "Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.".
my transations have been done using LINKED SERVER. when i manually call the store procedure from Server 1 it works but when i call it through Service broker it dosen't work and gives me this error.
Thanks in advance.
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Feb 20, 2001
1) Does shrinking a db have any side affects ? Or this is pretty much a normal
operation ?
2) Also in db options, is it recommended to have auto shrink checked ?
Thanks for your help.
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Dec 14, 2007
I am new to SQL server.
We have many databases for which log files have grown much bigger. The one I need to Shrink immediately has 16 MB .mdf file and 12 GB of .ldf file.
I will very much appreciate, if somebody can help me with step by step process to shrink the database/log file (some way). We are in a crunch situation
Thanks
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Apr 13, 2008
Hi all,I've deleted a lot of albums but the size of personal.mdf isn't shrinking - how do i go about acheiving this? I've tried to shrink it in sql management express but the file is read only..
please help!
thanks
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Mar 4, 2002
HiRunning SQL 7 sp3 on NT 4
I have a database that has the auto shrink option turned OFF. However, the log file seems to auto shrink after the user
runs bulk insert.
The log file is not setup to auto grow either.Any ideas.
Thanks,
Tariq
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Apr 25, 2002
I have a 13 Gig Log File with only 121 Mgs of space used. I have run the DBCCSHRINKFILE command and it has shrunk it by about 100 Mgs. Why can't I get it to shrink to a reasonable size.
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Sep 18, 2001
Have a 6G data file in a single filegroup.
Using dbcc shrinkfile to shrink.
Does not have any effect.
Any ideas?
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Sep 15, 2000
Hi, is there any other way to shrink the log file other than truncating every time it gets bigger... I have a 800MGs database and the log is getting as big as 11Gigs... any suggestions other than truncating it? Is there a way to set it off?
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Jan 8, 2001
I have a 1.2 gig db which has truncate checkpoint set and over 850 meg of free
space. WHen I shrink it through either DBCC or EM I see no change. ANy
ideas?
Thanks
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Jan 11, 2001
Hello,
Ran the Andrew Zanevsky script to shrink the Tran log, this works great, but say the log gets shrinked to 30MB, I then expand it to 40MB, then sometime within a 24 hour period it magically gets reset to 30MB. The database is a standalone DB, and is on SQL7 SP1 the script I ran can be found @ http://www.pinnaclepublishing.com/sq/SQMag.nsf/WebIndexByIssue/F36C151BD80FAD8F852568D0007799BE?open.
Can anyone please give some insight into this or maybe a flag that got reset somewhere?
Thanks in advance
Pat
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Feb 1, 2000
Hi again
Damn, people, how to shrink log file. I've tried several times with
DBCC SHRINKDATABASE ( database_name , TRUNCATEONLY)
and
DBCC SHRINKFILE (log_name, final_MB, TRUNCATEONLY)
and the log still is _untouched_
I have got big table, about 190 mln records (15 GB) and after simple update the log is very big but unnessesery.
Michal Pajkowski
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Oct 9, 2000
HI-
I've got a development server where I periodically have to allow the tempdb to grow to over 2GB. However, I'm at a loss on how to shrink the tempdb back down to a manageable size. I need the drive space on the server for other tasks. This seems like such a simple thing but I can't find information anywhere on it.
-Ryan
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