SQL Server 2008 :: TempDB Size Hovering Around 45%
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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Sep 12, 2011
We have installed SQL Server 2008 R2 SP1 instance and it's having Share Point 2010 databases.
We have 2 dedicated drives for Tempdb on SAN with 50 GB space. Both tempdb data & log files are created with default size. I would like to presize them.
What are the best values to start with?
U ->Tempdbdata having tempdb.mdf file
V->Tempdblog having templog.ldf file
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Mar 18, 2015
I have an instance with 4 datafiles for tempdb each set at initial size of 4G and growth rate of 100MB. After some time the initial file sizes seem to have changed automatically. They now read 3962,100,3688 and 2847 respectively. Is this something done by SQL Server itself? I cannot imagine that it was done manually.
I don't think there was a restart after the initial sizes of 4G were set, could this be related to the problem?
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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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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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Oct 7, 2015
I've never worked with the XML data type in SQL Server, although I know its been there for a few iterations of SQL SErver. Now I've got a situation in which it might store some configuration data as XML, since that's the way it comes. (We had thought about storing the data in a VARCHAR(MAX) field.)
The first question is does the XML data type have a size limitation? For example do you do something like:
ConfigFile XML(1000) NULL
Or is it just something like this:
ConfigFile XML NULL
The second question is persisting the data to a file. As the name I choose for the variable suggests, we want to save the data from a configuration file into a SQL Server database. How do we go about doing that? We'll be developing a C# application, it will read and write the data both from the SQL table and the user's local HD.
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May 31, 2000
Hi,
What should be the size of TEMPDB should i set ,if my production databse is 500 mb to 1 gb.
Thanks
Nil.
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Jul 21, 1999
I have an SQL server that has probably 20 or so people connected at a time. In addition to these people, there are five people that run Crystal reports with some voluminous data, usually coming from views.
About every week and a half, one of the report writers get a message that the master device is full and must be expanded, because tempdb is full. When I expand temdb, it fixes the problem.
My question is, the tempdb is now 800 Megs. The sum total of memory allocated to all of the other(besides master)devices is 650. Should this be a flag that something is wrong? It just keeps growing and growing. Tempdb is not on it's own device-it is still on master.
Any advice would be greatly appreciated!
Jane Davis
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Jun 11, 2007
when I restart SQL server my tempdb database is 1.9Gb. I thought it was deleted and replaced with a copy of the model database. Is this not so?
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Apr 9, 1999
I have read that MS suggests you tempdb be atleast 25% of your largest database. Is there any way to monitor your tempdb to determine if it is filling up or being 100% utilized and needs to be expanded?
Thanks,
David
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Dec 2, 1998
I have a server with 2.5GB of RAM. I am allocation 1GB to SQL Server and am attempting to put 500MB tempdb in RAM. It would appear as though I am hitting some sort of max threshhold that I am unaware of as I can set tempdb in RAM up to 320MB. Anything beyond that and I get the following errors on start up and SQL Server will not start.
98/12/02 08:25:47.03 spid1 Clearing temp db
98/12/02 08:25:47.03 kernel udactivate(IN_RAM): Operating system error 8(Not enough storage is available to process this command.) encountered
98/12/02 08:25:47.03 spid1 Device activation error. The physical filename 'IN_RAM' may be incorrect
98/12/02 08:25:47.03 spid1 crdb_tempdb: Unable to move tempdb into RAM; RAM device doesn't exist, cannot be created, or doesn't have enough space for tempdb
I am certain that I am not hitting a Physical RAM limit and the memory checks out and is visible to NT. Please Advise. Thanks
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Feb 1, 2011
I've got two databases on the same server and replicate some tables from one database to another.The replication is configured so not to drop the table if it exists, but to delete the data based on the filter if one exists. There are two tables on the subscriber that have some extra columns.
I get "field size too large" error when trying to replicate them. Is there a workaround without having to make the publisher and the subscriber tables identical by schema?
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Mar 8, 2015
My backups are failing sometimes.My db size is around 400 GB and we are taking backup to the remote server. Free size available on the disk is showing 600 GB but my database full backup run more than 10 hrs and failed. The failure reason is there is not enough space on the disk.
What could be the possible failure reasons? It has more than the the database size on the backup server but why it is showed that msg on the job failures. I noticed same thing occurred couple of times in the past.
Is there any way to find how much the backup file will be generate before we run the backup job?
i.e. If we run the full backup of test1 database now, it will generate ....bak file for that test1 db
currently we are using maintenance plan and with compression (2008R2) and the database has TDE enabled
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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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Nov 4, 2015
When sending an email in HTML format, shouldn't this allow for 2gb of data? Mine is getting truncated after 4000 characters.
@body NVARCHAR(MAX) = NULL,
EXEC msdb.dbo.sp_send_dbmail
@recipients='someone@some.com',
@reply_to='someone'
@from_address='someone@here.com>',
@profile_name = 'profilename',
@body_format = 'HTML',
@body = 'lots of data'
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Sep 9, 2001
What should be size of tempdb.
I am daily getting tempdb translog is full error.
Then i need to dump the transaction with dump traan.... with no log.
After this only server working fine.
Any solution please...
Thanks in Advance.
Selvam
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May 3, 2000
Hello Everyone!
Is there any way by which I can determine whether the tempdb size for the SQL Server is enough or not? (I ean are there any symptoms like excessive paging etc. that can identify this bottleneck?).
Thanks!
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Mar 3, 2000
We had a runaway query which built the size of tempdb to 24000mb. Then someone changed the unrestricted file growth property to restricted growth while the size was 24000mb. Now I can not reduce the initial size. I have set the property back to unrestricted file growth. I have shrunk the tempdb and available space is almost 24000mb. I have stopped sqlserver. I even deleted the existing tempdb.mdf & tempdb.ldf files. But when SQL server is restarted, the initial size is set to 24000mb. It will not let me reduce the size. Is there anything short of manipulating the system tables to reduce the size back to 500mb?
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Jan 17, 2001
We currently have a hard-drive size of 3.89MB and 3.3MB is being used by tempdb. I have tried shrinking the database truncateonly but this is not working. The problem is that the tempdb file is as large as my C: drive size. In addition can this be moved to another directory. For example can I move the tempdb.mdf and ldf from C: to E:. Any help would be greatly appreciated.
Thanks
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Apr 29, 2008
Hi All,
On my server C drive is of 34GB. Right now tempdb size is 22GB which is causing C drive to be full. How I can I reduce it? I dont want to move tempdb to any other drive, and I am only looking a way to reduce its size.
Please help quickly....
Thanks,
Zee
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Aug 26, 2007
I have the classic "tempdb-out-of-space" problem. Unfortunately, my server fails to reboot properly as tempdb is located on the C: drive which is now completely full. While I understand the changes required to prevent this from happening again, I want to know if it will even reboot if I delete tempdb.mdf and tempdb.ldf. I've read conflicting information on MSDN about default tempdb file size:
- files are built to the default size (I will be fine)
- files are built to the same size as before (problem)
Which is true for SQL 2005?
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Apr 29, 2015
How can we monitor the all tables in all databases and send notifications to the team.Is there a way to check to find the no of rows and size of a table last month and find out growth % now
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Feb 11, 2002
I have a tempdb that was created at 1Gig. I don't know why but I want to shrink it below the original creation size. Is there a way to shrink this file or create a new file and delete the old?
I have tried shinkfile and shrink database with no luck.
Thanks Jeff
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Mar 20, 2007
Against my better judgement, we are using fixed allocations of tempdb on some of our servers. This is to deal with specific limitations of our applicaitons and hardware configuration that I'm not allowed to discuss in much detail.
The problem that I have is that the present plan is to configure the data file at around 18 Gb and the log file at around 2 Gb. This seems just plain wrong to me, but I haven't been able to find a formal recommendation that gives any relative sizing. I would expect to have about twice as much log as data space, especially for tempdb.
Does anyone know of a formal citation (preferably from Microsoft) that discusses this?
-PatP
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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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Nov 17, 2015
I am considering turning on RCSI to prevent blocking, how do I estimate the size of tempdb?
I am monitoring current tempdb usage of space for
UserObjectsUsageKB,
InternalObjectsKB,
VersionStoreKB,
FreeSpaceKB.
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Oct 20, 2011
How do i check the size of the datacache allocated from the buffer pool by sql server?
DMV or anything to show me the pool allocation sizes for the various pools in sql server i think i may be able to work from there.
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Apr 18, 2000
I have got SQLv6.5 SP5a with SMS1.2 SP4 on seperate Alpha boxes. I have automated the backups so they are scheduled for after hours. SMS gets backed up first and TEMPDB shortly afterwards. However, since a back log in SMS MIFS has happened, the TEMPDB backup displays of 100,000pages backed up. When you back it up on its own, it only shows 170+ pages.
The SMS DB is 600MB in size, the Log is 210MB, Open objects is 5000, and TEMPDB is set 210MB on its own device.
Any ideas
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