SQL Server 7.0 'File Growth' Algorithm

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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SQL Server 2005 File Growth Issue

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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Script to find DATEWISE MDF FILE GROWTH Like

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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
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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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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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Jan 15, 2008

Hello Everyone,

I appear to be doing something wrong. When I
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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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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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Stop Growth In .mdf And Continue On .ndf File?

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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Distribution Database Log File Growth

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

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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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Oct 7, 2015

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Jun 10, 2008

Hi friends,

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Please help me.If you need the exception then i will send you later.

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Thanking you
Sadik Ali

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Data File Growth Afer Restore On 2005

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).
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Thanks in advance :)
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Aug 5, 2015

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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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Jun 19, 2006

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Aug 1, 2006

Hi

I am working on academic project using SQL Server 2005 & Visual studio 2005.  Using Apriori algorithm to find the association between Patient City and likely diseases.

I have created PATIENT table with Patient_Id, Patient_name, Age, City attributes and Diseases table with Disease_Id, Disease_name. Connected these two tables, MANY - MANY [M:N]. Got a third relation with Patient_Id and Disease_Id attributes.

I am just inputting some dummy  data into patient table and disease tables to make Apriori algorithm work. When a new Patient City is entered into patient table, System checks Patient table for same City previously stored and using Third relation, pulls Disease that associated with the City.

Here are my tables with attributes:

PATIENT ( Patient_Id, Patient_name, Age, City)

Diseases(Disease_Id, Disease_name)     

 [M:N]  Got third below third relation bcz its Many to Many relationship

PATIENT_DISEASES(Patient_Id, Disease_Id)

I do think and believe that there is an efficient way of doing , instead of usin dummy data or using this relationships. I did check Microsoft Association algorithm and realised it is not Apriori algorithm.

Could you suggest the best or efficient way of doing this using SQL Server 2005?

Your help and insight into this matter is highly appreciated.


Regards

Sukumar Raju

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May 16, 2007

First of all I would like to politely greet everybody as I'm new on that forum and new to Data Mining in fact.

To introduce myself I can say I'm a student of Computer Science and I'm trying to use Time Series algorithm for weather analysis. I know that forecasting weather is a hopeless task even for the fastest computers in the world but what I'm trying to do is a kind of aposteriori analysis of historical data to notice some dependencies or characteristic weather behavior on a specified region and perhaps make some short time predictions.


I tried Time Series Algorithm although I have some doubts about methodological justification of this choice (if You have any critical comments please share them with me). But my main questions are about the usage of the algorithm itself:




I've read the documentation and a tutorial on this page for historical predictions but I still don't know what exactly are HistoricalModelCount and HistoricalModelGap. I know that my historical predictions are bounded by a HistoricalModelCount*HistoricalModelGap*, but it's a rather operational knowledge... The explanation is always clouded with an internal model? phrase. Can You point me to a document where I can find some more detailed information? (What is the form of the model? How is it built? etc.)

Periodicity Hint. How should I treat these optional values? Are they other possible periods of data? I have data about weather measurements made every six hours for thirteen years** so is it a good choice to set this parameter to {365*4,4} (The first goes for a year and the second for a day)?

This is a technical question and I'm really ashamed of myself that I bother You with it. On the time chart in a model Viewer I can see date from the last year only. Zooming out/in, clicking insanely on every pixel on the screen, did not give any result (apart of broken mouse buttons). Is is possible to browse that data in mining model viewer chart?
Thank You in advance for Your replies!



*This formula suggests how this parameters could work but I would like to know it for sure don't want to make some awful mistakes in my project. :-)
**Of course I plan to reduce the amount of data but the period will stay.

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Apr 1, 2007

The first question is how to of TimeSeries Algorithm?

Using SQL Server 2005 TimeSeries Algorithm ,I build a data mining model.But after three days,it is still training.The data has 2,200,00 rows.

So what can i do to improve the processing speed.

Thanks!





The second question is parameters in Data Mining Query Task.

Data Mining Query Task is used to get data from data mining model.In the mining model form, i choose a mining model . And in the query form,i wrote a dmx ,"select flattened top 100 predicttimeseries([Xssl],1)
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If the "100" is variable , how can i do ?



Thanks a lot!

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With best regards,

Yours sincerely,

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