SQL Server 2008 :: Virtual Log Files And Determining Right Growth Size
Oct 14, 2015
Any good starting point to understand for a specific db, how many max VLFs are good to have so that it does not cause long startup or backup times?
Also, I need some calculation so that I can identify a best growth parameter I will setup for each database ?
I'm seeing the below msg in errorlog and curious to know the changes (right sizing/growth) to be done? As of now 100 MB of log file growth value is set (refer: [URL] ....)
Database BizTalkMsgBoxDb has more than 1000 virtual log files which is excessive. Too many virtual log files can cause long startup and backup times. Consider shrinking the log and using a different growth increment to reduce the number of virtual log files.
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Oct 1, 2015
I have a report that I want to render in different languages. Easy enough. However, the way I want it to work is for the user to go to a particular URL, and depending on whether the URL is, say, .fr for France, or .uk for the UK, it will recognize the URL and render the report in the correct language.The problem is, in testing, I've been trying to use the global &ReportServerURL but it does not seem to work.
Do I take it, then, when I put the report live, it will not recognize the URL that appears in the browser, and so won't be able to tell whether the URL is .fr or .uk and so forth?
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Apr 23, 2008
Hello - does anyone have experience w/SQL Server 2005 in a virtual environment? I'm considering this for a production environment but not sure if performance will suffer. Our databases will have a lot of writing but not too much reading. A SSRS solution is currently the only app. connecting to the SQL db. Max users to server at any given time will be very low (~10 users max). But the databases are pulling in data from other, outside multiple data sources on a daily basis.
Any pointers to documentation or any advice?
Thanks,
A Brown
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Aug 14, 2014
I'm aware of the issues with sizing your logfile growth size too low (causing too many VLFs, etc). But I haven't seen much about the datafile side of it.
Are there any benchmarks specifically on setting datafile growth so low (on databases 1-100Gb in size)? Are there circumstances in well utilized servers where that might be warranted?
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Feb 5, 2015
I received alerts from a couple of the production servers last night stating that the log file is running out of space. So, I took some log backups and shrunk those files. However, I would like to find out what made the log grow like that. After all, I have t-log backups scheduled every 30 minutes.Is there a way I can find out the reason behind the log growth?
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May 5, 2015
I need to monitor my database growth, as few of databases are growing rapidly. My client wants the growth list of my databases. have report of database growth of specific databases, at least of one month.
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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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Feb 28, 2015
I have a SQL Server 2008 R2 database.
I have modified the autogrowth configuration several times. The strangest thing... they keep reverting back to the original configuration.
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Jun 14, 2015
I am getting the error The transaction log for database 'ReplicationDB' is full due to 'LOG_BACKUP'.log_reuse_wait_desc from sys.databases is showing logbackup
The database is subscribed database. We configured transactional replication. But the transactional replication is getting errors and failed. Is there relation b/n this replication failures and log growth in subscriber db?
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Oct 28, 2015
Does there a way or script to find the rows, space used by the specific tables based on every year.
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May 20, 2015
Is there a better way to deal with the virtual log files?...I see several approaches in dealing/decreasing the virtual log files for a database..want to know what's the best n safest approach, from the masters here?
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Apr 30, 2015
Is there any automated script available to - "Monitor Database Growth and if any DB is grown by 20%, sending mail alerts"? If not, what is the approach to write the T SQL script ?
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Oct 31, 2001
Is there a system stored procedure that I can execute that will return the actual size of the database you are working with? Any information is appreciated.
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May 9, 2008
Forgive the easy question but I'm afraid it might be also a trick question and I'd like to hear the experts' opinion. I am using SQL Server 2005 Express edition and I know the limitation is 4GB per database. So far none of my users is anywhere near the limit but I have to be prepared for when that day finally comes. As it stands, they use a single database through a program so I have full control over it. There are no fancy backup programs on the system so no fancy recovery models and automatic shrinking can be done - data is only inserted in that database.
My question is simply how can I determine programmatically (I use ADO.Net but it can execute SQL commands just fine) the size of the database as it relates to the limitation? That is, I don't know whether it is the amount of data stored - with or without overhead, or it is simply the size of the *.mdf file (maybe together with the *.ldf file), or whether the 4GB is 4 billion bytes or 2^32 bytes - I just want the same method that the SQL Server is using so that, for example, I can bring up a warning at 90% full and lock out the user at 99% full.
I'd appreciate any insights.
Kamen
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Mar 14, 2011
I have been tasked with moving our SQL server estate onto new 64bit SQL 2008 Virtual servers on a VM base. Each Virtual server will be attached to our SAN that i will have no control over. Do i ask for multiple LUNs pretending that there is a COS), Etemp), FData) and Glog) disk structure or do I just present a very big space as a single C: drive and let it go.We are consolidating lots of old physical servers onto fewer (more powerful) virtual servers (according to the VM and SAN administrators)
1. Configure your SAN properly
2. Don't overallocate shared resource
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Sep 23, 2002
:eek: I am somewhat confused -- I have a database in production that I restored to a QA environment; upon restore, the size has grown by 200MB.
Both production and QA are running SQL2000 -- the only difference is that QA has the latest security hotfixes installed -- version 8.0.0.665 from KB article at the following link:
Q316333 (http://support.microsoft.com/default.aspx?scid=kb;en-us;Q316333&id=Q316333)
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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 22, 2001
We have a nightly application that when run during SQL Backup caused a single table in a 7GB database to increase to 13GB. Total database size reached 20GB when the disk array ran out of space. Table only contained 661,000 records and should have been less than 100MB.
Recently we have moved from SP1 to SP3.
HELP !!!
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May 31, 2005
My DB size was from 500MB to 10GB since 8/1998 to 12/2004. But now is 16GB (from 1/2005 - 5/2005), I don't why the data size growth too fast (as double) ?
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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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Mar 11, 2004
Hi All,
Database size is not increasing automatically ,however I have set it as unlimited growth. Any idea about this ?
thanks for in advance,
Sedat Duztas
Probil
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Oct 1, 2004
I am wanting to reduce the amount of Virtual Log Files I have. In reading through the Online Book Documentation, I realize that I have forgotten to move the Transaction Log Files to a different drive. Now that the server is in production, I wanted to get some input about the best way of making this change.
Can I just change the directory the log files are being written to in the DB properties without having any adverse problems occurring?
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Sep 12, 2007
I'm trying to insert a fact table using SSIS which has a primary key. This is a one time load of about 150m rows and after this I'll be doing incremental only. It takes more than 8 hrs and finally the ETL fails because of not enough disk space.
After that 8hrs,When I right click the property of the table and see the row count, I can see all 150m. but it seems like it takes forever to commit the transaction. But it keeps on adding to the Log and when it reaches just few hundred MB's left on disk space the row count just rolls back which takes another few hrs to come back to 0 and it fails....
I've changed the database recovery model to simple from full and I've set up the OLEDB destination- Rows per batch, and Maximum Insert Commit size to both 100000. Should I need to just leave it to 0? Or adding space to the log can solve the problem? ( I have almost 95 GB free before the load). I'm just having a hard time to understand why its taking forever to commit the transaction.
Can anyone shed some light?
Thanks-
Rok
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Nov 8, 2012
We are using sql server 2008 r2 standard with sp2. I have a 12 GB database in production server, log file was set to 150MB with increment of 10 percent, in last 4 years database size has gone from 2gb to 12 gb. I ran following command
DBCC LOGINFO
And found I have 150 plus rows(which means 150 plus virtual log files)
I increased the size of log file to 25 percent of data file which comes to be approx 3gb and also set auto growth to 20 percent ...
Additional info: we have a log shipping environment in production, i am taking log backups every 15 mins.. still number of virtual log files is same , why is that , how to bring them between number of 25-50 as thats the recommended.
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Apr 18, 2007
I am trying to set the log file on one of our databases to unrestricted growth, but after changing the setting, saving and then going back into management studio, the setting is now back to restricted growth. I am a sysadmin within sql and a local admin on the server so permissions should not be an issue.
What is preventing the setting of unrestricted growth on the log file from staying after the save.
I do not have this problem on the data file, (the change stays), but only on the log file. it happens for any database on the server. Sql Server 2k5 enterprise edition with SP2.
thanks
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Jun 8, 2015
I am getting this massage in error log .
"Database XYZ has more than 1000 virtual log files which is excessive. Too many virtual log files can cause long startup and backup times. Consider shrinking the log and using a different growth increment to reduce the number of virtual log files."
I am using sql server 2008r2.
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Feb 4, 2015
I have a table like below,
CREATE TABLE Student
(
Id BIGINT not null
,Name NCHAR(20) not Null
,Branch NVARCHAR (64) null
)
The table contains : 100000 rows .
1)Number of rows in a data page
2)Total number of pages required for the table
3)Total Table size in KB or MB
4)Total file size in Kb or MB
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Feb 22, 2015
I'm trying to understand what is happening to one large table.
In a DB SQL 2008R2, I'm trying to track a rapidly increasing DB size. It's due to one table recently added.
Despite the table's no rows increasing its size reduces after a scheduled re-index.
I've recorded the space used by this table by recording EXEC sp_spaceused 'tableName'
---
NoRows reserved data index_size unused
128864512300384 KB 2290928 KB9432 KB24 KB AFTER reindex
128864515406232 KB 5366184 KB39280 KB768 KBBEFORE reindex
N.B. The only thing I'm aware of happening in the time period is a reindex as part of scheduled task. I could be missing something else happening.
The table has only one Index the PK which is clustered, No Fill factor is specified. The Server Default fill factor =0.
I read fillfactor=0=100 Will always try and fill the pages so space used will be minimised?
After running the reindex the index fragmentation is v.low. I've not recorded the fragmentation before reindex.
I can see the Data is not added in Clustered index order.
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Feb 27, 2015
In my database there is a big table and format is something like this:
CREATE TABLE [dbo].[MyTable](
[aaa] [uniqueidentifier] NULL,
[bbb] [uniqueidentifier] NULL,
[ccc] [nvarchar](max) NULL,
[ddd] [nvarchar](100) NULL,.......etc.........
There are some more columns with more 'nvarchar' (max) and other INT data types. Anyway, I know a page is 8K size. How do I find out how much space does A ROW takes with above datatypes? If users add 5000 Rows per day, how do I figure out how much size the table will increase?
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Apr 30, 2015
I have issue with my DATA file ( MDF) .. The usage is 99.87% for database DB1 . File size is 3 GB . How do I reduce it ?
I have tried to shrink it by changing the recovery from FULL to SIMPLE and set it back to FULL .
I notice the index Defragmentation is high ..
Can I change the Initial Size into 1 GB for example ?
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Jul 27, 2015
My prod server (only default instance) is configured TempDB 1024 MB data and Log 200MB. when I run 'sqlperf logspace' it shows most of time around 45% 'log space used'. There nothing going on the instance when I ran 'whoisactive' and select * from sys.sysprocesses where dbid = 2!!!
So my questions are is this normal to see log space around 45%, how to find what what CAUSED the tempdb log space to grow 45%? Is there something to do about it?
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Jun 21, 2010
Can I view the log cache size in SQL Server memory any DMV's which states that.
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May 25, 2015
For finding size values of temp database:
select * from sys.master_files -
size column value here is 1024 for .mdf,size here for .ldf is 64
select * from tempdb.sys.database_files -
size column value here is 3576 for .mdf,size here for .ldf is 224
Why is there a difference and not the same. size columns in the above 2 tables for temp db's do they represent different values ?
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