Unexplained Log File Growth
Jul 1, 2004
We have a SQL 2000 database here. As of 3 days ago, it was about 75 megs ( 73 Data / 2 log ). As of today, it is 73 Meg Data / 15 GIG log. The log file went from 2 MEG to 15 GIG in a matter of days, yet the data file size has not changed. also, there are NO users to this database - it's new and has not been placed into production yet. I currently don't have any idea as to what happened - I'm looking into Lumigent's log explorer software now. Does anyone have an explanation as to why the log file would have increased 6000X in size, yet the data is not any larger ?
Thanks,
JK
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Sep 22, 2015
What is the recommended size and file growth for a database and log file? We will be storing approx 10000 records a day.Currently we have the following:
CREATE DATABASE Dummy
ON
PRIMARY
( NAME = Dummy_data,
FILENAME = 'D:....DATADummy.mdf',
SIZE = 250MB,
FILEGROWTH = 25MB )
LOG ON
( NAME = Dummy_log,
FILENAME = 'D:....DATADummy_log.ldf',
SIZE = 50MB,
FILEGROWTH = 5MB ) ;
GO
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Apr 22, 2014
We have a large 'History' database that is currently about 4.5TB, with most of that in a datafile that is 4.2TB. We wanted to stop growth on the one large data file and have SQL Server allocate new data to the other data files, but this throws an error when we attempt to change the MAXSIZE settings:
ALTER failed for Database 'History'
MODIFY FILE failed. Specified size is less than or equal to current size.
The SQL Server is saying we can have a max size of 2TB, and anything over that is blocked. Since this is being blocked, the file continues to grow.
Is there any way to cap the growth of the 4.2TB file and not allow any more data to be written to it?
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Jan 15, 2008
Hello Everyone,
I appear to be doing something wrong. When I
set my Table for Unrestricted File Growth and
save it, When I go back and look at the settings
it is set back to restricted file growth.
It seems to me if you set any settings and apply
and/or save it. Should it not keep that setting.
Any advice would be great.
Thanks
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Mar 3, 2008
i have a database which has a log file size of 10 Mb. it goes into single user mode automatically . i tried to increase the size of file size of log file from 10 mb to 50 mb... but i want to make it only 20 mb ... i am unable to change since it gives a message .cannot decrease the size of the file .. is there another way to decrease the size of log file .....
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Jun 12, 2007
We currently have a 10GB database that is functioning properly mirrored. The only issue we have is that the log files grow very quickly during the early morning hours when a large number of transactions hit our DB from scheduled jobs. We have transaction log backup and shrink job that runs every 3 hours to backup the log and shrink the logical file to 10GB. In most cases this will shrink the log back down to it's desired size of 10GB. However, on some mornings it takes more repetitions of the log backup/shrink job to return the log size back to "normal". During this these times when it does not shrink the DB effectively, I get a report of the job process by email that states "Cannot shrink log file 2 (e_Log) because all logical log files are in use." I run a DBCC OPENTRAN command, and there are no open transactions. Eventually, the log file will return to it's normal size of 10GB through the log file backup job. I have a few questions though.
1. Is this normal behavior during moderate database use?
2. Does mirroring have any effect on the SIZE of the log file?
3. Is it normal for the size of the data file to be smaller than the size of the log file on a heavily used database?
4. Does anyone have any suggestions to better maintain the log file size?
Thank you,
Greg
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May 18, 2007
I am getting a bit concerned with the size of my log file and my understanding of backups and how the log file should be getting reduced in size. I have a production database that is 12 GB and the log file is 275 GB. The database file is set to autogrow at 1 MB and unrestricted file growth. The log file is set to 10% file growth and restricted to 2,097,152 MB file growth. I perform a full database backup each night. I had thought that all transactions in the log file would be rolled into the database file and then the log file auto-truncated in size during the backup process. I have never seen a log file stay larger than the database file. Please advise how I may keep the log file size (growth) down. Thanks!
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Nov 27, 2007
SQL Server 2005
We need to set up a database with minimal log file growth or none at all. This database is used as an intermediate step in the data extraction process, i.e. ( daily inserts and truncations) - data recovery is not an issue, but the size of the log file is. How should I set this database options?
Can I set log file growth to 0 ( none)? Will it affect inserts?
Thank you
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Nov 16, 2000
We are running SQL Server 7.0 SP2, and are experiencing the following out-of-
space error message:
"Could not allocate new page for database 'FooBar'.
There are no more pages available in filegroup SECONDARY.
Space can be created by dropping objects, adding additional files,
or allowing file growth."
Needless to say, but the the database is set for 10% unlimited autogrowth and there
IS available space in the partition where the filegroup resides.
Any ideas as to why this is happening? What is SQL Server's algorithm for allocating
space when growing a database? Must it satisfy the request in one 'extent' and the
cause of our problem is that our disk is fragmented?
Thanks in advance.
Bill Zimmer - zim@ibx.com
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Mar 8, 2004
Can someone point me to examples of database & file growth monitoring.
I specificially want to monitor a number of separate SQL servers (2000, 7.0)
I want to end of with statistics of any size changes on any of these over time.
Help is greatly appericated..
thanks
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Apr 7, 2014
We have a database called "ih".
On Saturday the mdf file was 41.8 GIG. Today it is currently 79.1 GIG.
I've restore the DB to a new db from Saturday to compare to see where the growth is happening. That db is called "ih_restore".
I've found the following script which reports the size of each table of the database -
SET NOCOUNT ON
DBCC UPDATEUSAGE(0)
-- DB size.
EXEC sp_spaceused
-- Table row counts and sizes.
CREATE TABLE #t
(
[name] NVARCHAR(128),
[rows] CHAR(11),
[Code] ....
I've run it for ih and ih_restore and can see that the "reserved" and "data" fields are growing but no extra rows - so no inserts are happening in the database?? What or why will this be happening.
Example of csv file of a table that I've exported -
From ih -
name,rows,reserved,data,index_size,unused
em_comm_costing,384191,1011704 KB,512424 KB,498648 KB,632 KB
From ih_restore
name,rows,reserved,data,index_size,unused
em_comm_costing,384191,119808 KB,62960 KB,56088 KB,760 KB
So the em_comm_costing rows are 384191 in both but the data field has increased to 512424 from 62960.
The database is being mirrored as well, but not sure if that would be effecting the size?
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Sep 19, 2007
Hi everyone,
Once our company encoutered database disk full issue, so we cannot insert any more data. So is there way I can monitor the data file size? or is there a monitor tool to sending out alert?
for example,
It can show me how many percentage of data file has been used e.g. 90%. so I know it's critical and I need to increase more space for database or disk drive.
thank you in advance
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Jan 4, 2008
I have 50GB datafile (.mdf) and have 650 mb lift on the hard drive. I have another drive (on the same box) which has about 30 GB left.
My question is can i create a .ndf file in that 30GB drive and continue the database growth on the new .ndf file with out any furthur growth on the .mdf file? please help!
Thanks in advance!
THE LADDERS (The Most $100k+ Jobs.)
www.TheLadders.com
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Aug 10, 2007
We have a problem with the size of the tempdb.mdf file. The tempdb had grown to 25Gb and consumed all the available disk space. SQL server was restarted and the tempdb was reset back to the default size. The following day the tempdb suddenly increased in size from 200mb to 25GB within a very short space of time. There were a couple of event log entries from sqlservger regarding the lack of disk. Since then the server is running without any problems but the level of free space is virtually zero on the drive with tempdb.mdf file.
What would cause the tempdb to grow suddenly and to this size?
Can I control the size the tempdb can grow to?
SQL 2005 (x64) sp1
W2K3 R2 SP1
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Apr 16, 2007
I've been looking through this forum and can only guess that SQL2005 has changed in how backups and log file growth issues are handled. I tried the All Tasks feature from the GUI to perform a backup, however, the Truncate the Transaction log feature is greyed out so I can not select it. In SQL2000 I used the following to backup my databases and the log files were never a problem:
BACKUP DATABASE [DSS] TO DISK =
N'G:MSSQLBackupDSSbackup.BAK'
WITH INIT , NOUNLOAD , NAME = N'DSS backup',
SKIP , STATS = 10, NOFORMAT
Could someone assist me with a proper T-SQL to place in a job to backup my database and keep the log file under control and / or explain why the Truncate transaction log feature is greyed out?
Thanks!
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Jan 11, 2007
SQL Server 2000 | Transactional Replication
Suspected Problem: Distribution Database Transaction Log Not Checkpointing
I have a distributor with a distribution database that keeps growing and growing (About 40 GB in 7 days). The database is using the SIMPLE recovery model but the log continues to accumulate data. I have spent time looking at articles such as: "Factors that keep log records alive" (http://msdn2.microsoft.com/en-us/library/ms345414.aspx) and the one thing that stands out is the Checkpoint. I noticed that I can run a manual checkpoint and clear the log. If the log records were still active, the checkpoint would not allow the log to be truncated. This leads me to believe that the server is not properly initiating checkpoints in the Distribution database even though Recovery Model = SIMPLE and the server Recovery Interval = 0.
I found this: "FIX: Automatic checkpoints on some SQL Server 2000 databases do not run as expected" (http://support.microsoft.com/kb/909369/en-us) but I suspect this is a followup to a problem that may have been introduced with SP4 (since SP4 is a requirement for the hotfix). I am running SP3a (Microsoft SQL Server 2000 - 8.00.850) so I don't think that is the issue. I have several other nearly identical servers with the same version and configuration that have properly maintained log files.
SP4 is not a good option for me at this point - the next upgrade will be to SQL 2K5.
Any thoughts?
Jeff
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Apr 1, 2005
Does anyone know where I can find the "retricted file growth" value (for the data file) from the system tables? We setup a limit for the file growth for all the databases. We would like to write a script to alert us when the database size approachs the limit.
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Mar 29, 2007
Guys,
I am a bit puzzled. Our database backup grew from the usual size of ~27GB to ~40GB, all of a sudden. Nothing special happened in the last few days - nothing major to cause such increase.
I found out about this, because we suddenly had the backups failing, and when I explored, I saw that this was due to the lack of space on the hard-disk.
I do know that we need additional hard disk space. In the meantime, however, I'd like to be able to identify what exactly could cause such growth.
As far as I understand, for the backup to grow, the database needs to grow in a similar proportion. My only theory is that when the backup failed a few times, each time, somehow, it resulted in the database growth. Does this make any sense?
Another clue is that the backup job, which usually runs ~ 30 minutes has been running for 6 hours already, the file has grown to 40GB, and the backup job is still running ...
What is the best way for me to explore what exactly happened? Are there some system tables containing history of table counts or something - so that I can see who grew when and by how much?
I ran a query to see which objects were added in the past few days - that did not give me any clues - all looks normal.
Any ideas/suggestions?
Thanks a lot
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Jun 20, 2007
I have a SQL Server 2005 SP2 instance and I detach/attach a database to the system and changed the file growth parameter from 10% to 100MB. Now when I look at the file growth parameter, it is showing 12800% instead of 100MB. I did some research and I found out this is an issue with SQL Server since MSSQL 2000. Is there a way to fix this issue using ALTER DATABASE or some other SQL command?
Thanks in advance for the help.
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Jun 30, 2015
Script to find DATEWISE MDF FILE GROWTH Like
30/6/2015 10%
1/7/2015 8%
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Nov 7, 2015
A log file size of a production database has been increase from 4gb to 150 gb initial size.Now i want to find when it will grow & how much it grow & which transaction is responsible for this.
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Oct 7, 2015
I currently have a DB that is growing at a rate of 10gb per month. It is set to 1mb unrestricted growth and the log file is set to 400mb restricted growth. I take regular transaction log backups so the log file is well under under without any issue. This DB's recovery model is set to FULL as it has to be mirrored to a backup site. Any recommendations on how to control the growth. - Is it advisable to take create a new DB with data older than 2 years and transfer that file to an external drive and if i do this, can i "attach" it back to the main server if and when required ?
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Mar 27, 2015
I am monitoring the data file growth of the databases in a table. Every week I review to see how much space is left on each database. I am thinking of writing a query where the current free space left is less than 20% of the file size, it sends out an alert to me, so that I can manually resize the file . Is it a good practice to resize the data file manually? If so I believe this need to be done at the time when the server is least busy since it can slow down the database. Also do I need to re-index the tables once the data file is resized?
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Jun 10, 2008
Hi friends,
I am working on a application in which,at once i have to make a huge amount of data to insert and delete in my data base.At this time of some transaction my data base log file,shows data base error like the log file of this data base has been full.plese see the sys.databsesd view...like..
Please help me.If you need the exception then i will send you later.
Cheers..
Thanking you
Sadik Ali
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Oct 15, 2007
Hi at all,
first post....first help :P .
I hope to help another one (basing on my knowledge) in the next future :)
I'm a beginner dbadmin and I'm looking for help regarding a strange fact relative SQL Server 2005 :)
I migrated a medium(3,5GB) database from sql server 2000 to sql server 2005.
I made a backup in sql server 2000 (it has generated a 3,5GB BAK FILE) and I restored it in sql server 2005 on another server. (I didn't checked data file size).
I configured (with wizard) a maintenance plan on new sql server 2005 with these steps (in this order):
(tellme if the order of the steps is wrong :))
1) check db
2) rebuild index
3) reorganize indexes
4) update statistics (all table and all views)
I planned the maintenance plan on 3a.m. and I went home.
Next day I found that data file (MDF) on sql server 2005 was 22GB large!!
I made a shrink DB but there wasn't free space to erase. It seems there are
22GB of data.
(the data inside is the same of the sql 2000 server..same records same
table...identical, non change of data in the meanwhile)
How is it possible? What am I doing wrong?
I don't understand what can caused the growth of the file, the maintenance plan or the restore? (unfortunately....I didn't checked size after restore...I checked it only the next day).
May be the statistics? (there wasn'int update statistics job on old maintenance plan on sql server 2000)
Thanks in advance :)
Bob
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Aug 5, 2015
I was looking to change the file growth setting in our AlwaysOn environment databases.We have a single availability group, one primary and one secondary replica. I learned that when changing the file growth setting on the primary databases (data file), the change flows though to the database on the secondary replica.However after doing the same with the log files, the file growth setting changed on the primary but the change did NOT propagate to the secondary.
Is the solution to apply the change directly to the secondary?here's the T-SQL code I used:
ALTER DATABASE myDB
MODIFY FILE ( NAME = N'myDB_log', FILEGROWTH = 512MB );
GO
SQL Server 2012 (11.0.5532)
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Apr 12, 2004
Hi all,
I could really use some assistance. I have been researching this problem for over a month now and I have not made any headway or progress.
I am running SQL Server 2000 on Windows 2000 Server. Hardware is Dual Xeon 2.4/400 Procs, 2GB ram and 1 Raid10 Array with 4x 36 GB 10K RPM drives.
The server has about 50 dbs on it. All are primarly used in conjuction with some web application or site. On average the server sees about 270ish connections/sessions.
About 1 - 2 months ago, we started seeing random login failures. We have no explanation for these failures. Our coldfusion code gives us detailed logging information regarding the exact statement that was being executed when the login failed. We try to reproduce the failed login, we cannot. There are no misspelling, code inconsitencies in this regards because the logins are set in the data source which verify.
We are using per-processor licensing, so unless there is a hidden limit we are hitting or MS is lying about per-processor licensing having unlimmited connections, that is not the issue. Also, I've ruled out some kind of network issue because if that were the case, the login would have timed out, as opposed to failing. I've been running a trace and viewing the failed logins.
Has anyone dealt with this issue before?
Best Regards,
Errol Neal
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Nov 9, 2007
I'm having data converted to unicode and I don't understand why.
My Sybase server is configured with the standard Latin CP1252 character set and my source column is varchar(2000). My understanding is this should not be unicode in Sybase.
My SQL Server 2005 SP2 is configured with the standard SQL_Latin1_General_CP1_CI_AS collation. Again, my understanding is this should not be unicode.
I'm connecting to Sybase Adaptive Server Anywhere 9.0.2 from SSIS SP2 via the Data Reader Source using the .Net ODBC data provider.
My SQL Server destination column is a varchar(2000) column. To me, it looks like I'm going from one equivalent data type to another yet I receive the 'cannot convert between unicode and non-unicode data types' message.
Now, I can get around this in several different ways, but that's not my question. My question is: WHERE is the conversion to unicode occuring and WHY is it occuring?
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Aug 12, 2007
To anyone that can help me
we have a application written in straight ASP, we recently upgraded our SQL database connecting to the application from SQL 2000 to 2005 here is the issue
currently SQL 2005 is located in our test and UAT environments, SQL 2005 is not clustered in either location. Now let me make it clear THIS PROBLEM IS NOT HAPPENING IN OUR TEST ENVIRONMENT, I REPEAT THIS PROBLEM IS NOT HAPPENING IN OUR TEST ENVIROMENT, THIS PROBLEM IS ONLY HAPPENING IN OUR UAT ENVIROMENT
Each enviroment is outfitted with the following SQL 2005 environment, Enterprise Edition SP1 with Cumlative hotfix package 2153 just the SISS fix ONLY
now the problem is this, we have a vb program located directly on the server that has SQL 2005 on it that VB program inserts a timestamp into a table inside the database, now how this happens is the program connects to the database and opens a recordset with a forwardonly cursor and inserts the timestamp
NOW THE EXACT PROBLEM IS THAT THE VB PROGRAM CANNOT OPEN MULTIPLE RECORDSETS, THE ERROR RECEIVED IS LABLED LIKE THIS
ODBC DRIVER ERROR 8000405 SHARED MEMORY SQL DOESNT EXIST OR ACCESSED DENIED,
NOW here is the interesting part, AGAIN THIS IS NOT HAPPENING IN OUR TEST ENVIRONMENT, THE VB PROGRAM AGAIN IS ON THE TEST SQL SERVER AND HAS A FORWARD ONLY CURSOR AND INSERTS JUST FINE
NOW IF I MOVE THE VB PROGRAM OUT OF OUR UAT ENVIRONMENT ONTO ANOTHER SERVER IT INSERTS THE RECORD ONTO SQL SERVER JUST FINE, IT OPENS THE RECORDSET AND OPERATES NORMALLY, BOTH SERVERS HAVE EXACT SAME PERMISSIONS
Can anyone help me understand whats happening here
One note, when we changed the cursortype from forward-only to keyset it worked fine but that doesnt explain things
why does it work in test so clearly what we did with changing the cursortype isnt the answer
Thanks please consider this a urgent request
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Aug 14, 2001
Does this seem right? We have our transaction logs set to "Truncate Log on Checkpoint" and they still grow over 1GB. Is it possible that one transaction (to a checkpoint) generates this much logged information? Will transaction log backups every 5-10 minutes help me out better or is this just a poorly written application?
Thanks!
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Mar 6, 2001
I am having a problem with the growth of the tempdb on my SQL 7.0 box. I have over 300+ stored procedures that are running (many with group by and order by in them). This is causing the size of my tempdb to grow to over 30gigs in size. If i reset the services of the DB it shrinks back down to the managable 6 gigs that i expect. Is there a way to have the services restart automatically on a nightly basis or is there a way to have the tempdb deallocate resources once they are used without restarting services?
I apreciate any help you can provide,
Nathan
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Oct 9, 2002
Hi,
I am moving table(14 million rows) data from one server to another, The transactional log file growth during the process is 3 folds compared to actual data file size.
Could you please tell why?
Thanks
John Jayaseelan
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Feb 14, 2005
Well my question is how do i analyze db growth per day. is there a tool i can use or a method. I mean i do take a look at the task view and the files but per day it doesnt move in MB wich is weird since this is a warehouse and their are nightly loads to it inserting maybe 30000 record a night on avg.
Any help would be grately aprreciated.
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