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Questions tagged [tempdb]

TempDB is part of MS SQL Server. It's a system database that functions as a storage area for temporary tables, internal objects and row versions.

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3answers
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Sort spills to tempdb due to varchar(max)

On a server with 32GB we are running SQL Server 2014 SP2 with a max memory of 25GB we have two tables, here you find a simplified structure of both tables: CREATE TABLE [dbo].[Settings]( [id] [...
6
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4answers
595 views

Does LocalDB support temporary tables?

Are SQL Server temporary tables (prefixed with #) supported in LocalDB instances?
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0answers
49 views

Unexplainable write latency tempdb

I have a virtual SQL Server 2016 SP2 CU2 with SAN storage. TempDB has 8 files. I know it is recommended to put TempDB on SSD but TempDB is hardly used so spinning disks are cheaper. I've noticed that ...
2
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2answers
120 views

Memory issues: Tempdb using Almost all of the buffer cache

On one of the servers I am working on today, i see that almost all of the buffer cache is filled by tempdb. As a result memory is very low on the server. CPU Tempdb: Version: Microsoft SQL ...
0
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1answer
31 views

What happen when a transaction is committed and SNAPSHOT isolation is enabled?

I am actually considering using SNAPSHOT isolation for one WCF service. Before doing so, I would like to know how it works. AFAIK, when it's enabled, updated rows are maintained in tempDB (instead of ...
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1answer
388 views

“The transaction log for database 'tempdb' is full due to 'ACTIVE_TRANSACTION'.” after adding indexes to temp tables

Recently, I added some indexes on temp tables to procedures which prepare data for data warehouse. On a testing db, tests of these procedures worked fine but when running on client's server it failed ...
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0answers
45 views

Moving tempdb from shared to local drive in a failover cluster

We have an existing failover cluster that I would like to have the tempdb in local drive. I'm not sure how to proceed. My thought process is below: Create two drives on each node one for tempdb and ...
0
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1answer
67 views

SQL Server Version Store Performance differences between RCS and ASI

I understand that Read Committed Snapshot (RCS) operates at statement level, and Allow Snapshot Isolation (ASI) operates at transaction level, and both store row versions in tempdb. I also understand ...
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1answer
114 views

Why do LocalTemp table showing with lengthy underscore under Temporary Tables of tempdb in SSMS 2017 Express Edition? [duplicate]

In my Microsoft SQL Server 2017 Express Edition, I have created a local temp table using below create statement, create table #localtemptable (tempid int,tempname varchar(20) ) After creating #table,...
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0answers
50 views

Does splitting 1 tempdb file into 4 require a SQL Server restart? [duplicate]

please can anyone help? I have a SQL 2008R2 instance with 4 cores, configured with 1 tempdb data file and 1 logfile. I want to change this setup as per best practices by adding 3 additional euqally ...
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0answers
31 views

Restricting users to execute queries that bloat up tempdb

we have many a times faced a scenario where bad queries using tempdb just bloats up this system database filling 700 GB of tempdb in like couple of hours. I know there is a scope to tune them up. But ...
3
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2answers
92 views

Tempdb with Multiple mdf and Renaming

We just inherited a legacy Tempdb database with Multiple MDF files. Tempdb1 is the primary. Example: Tempdb1.MDF Tempdb2.MDF Tempdb3.MDF (1) Was tempdb2.mdf and tempdb3.MDF being ignored the whole ...
0
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1answer
102 views

Tempdb Configuration best practices

I've been asked to provide my input on best practices to improve tempdb performance. I realise that this is a case by case basis and tempdb in one estate may have different requirements to another due ...
0
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0answers
35 views

TempDB log file bloated suddenly [duplicate]

I am trying to understand what could be the possible reason which would have caused tempdb ldf file grow full and went out of space on the drive it resides. Compared the pattern for last month and ...
3
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1answer
836 views

Tempdb Add files require Restart

Does adding Tempdb files require a restart? We would like to Add files on the same drive, Not Delete and Not modify. We tested in Dev and QA environment, restart was not required. However for ...
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2answers
136 views

Tempdb files Solid state on Same drive?

We currently have tempdb (8 files) on solid state drive. We know that primary mdf and transaction log ndf are recommended to be on different drives, to reduce contention. Should tempdb files be on ...
2
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1answer
355 views

How can I track down what's filling my 'tempdb' transaction log?

We have a large and fairly well tuned SQL Server 2016 Enterprise Edition. Given the number of cores we have, our tempdb is currently comprised of 16 2,950 MB files running on a ram disk with a 16 GB ...
4
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1answer
60 views

CONVERT_IMPLICIT when inserting a Geography datatype into a Geography datatype column on Temp Table

@@Version Microsoft SQL Server 2008 R2 (SP3) - 10.50.6220.0 (X64) If I try to insert data into a geography datatype in a temp table I get a CONVERT_IMPLICIT, converting a Geography datatype to a ...
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2answers
318 views

Contention on tempdb due to high concurrency temp table creation from multiple databases?

I have an environment with ~100 databases, all with the same schema. There is a stored procedure on each database that creates a #temp table and drops it, and is running very often (every 30 seconds ...
3
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1answer
305 views

Disk sizing considerations for 'tempdb' - Growing substantially two times a year

I have an HR software on which an employee of the HR department runs long and complex analyses and calculations about two times in a year. Because of this the tempdb is growing to 500GB and even more. ...
1
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2answers
385 views

Temp DB is growing continuously in SQL server

I have used temp tables and drop the same in the every stored procedure in my database. When I try to check my tempdb data using Select * from tempdb.sys.tables, I am getting many tables with names ...
5
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1answer
562 views

dbo.SORT temporary run storage: 148643705716736' What does this number means?

I totally understand what this error means and how to resolve. My question is what does this number (148643705716736) referring to? Date 5/7/2018 1:36:58 AM Log SQL Server (...
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2answers
334 views

SQL Server tempdb on SSD showing IO

We recently separated out our tempdb files to a new SSD and have started seeing: 5348 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file [T:\tempdb\tempdb4.ndf] . We ...
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2answers
646 views

Can multiple instance of procedure create same #Temp simultaneously?

I have a procedure which is inserting data into #temp table. After performing certain manipulations to the data, it store data from #temp table to some other table. I cannot run multiple instance of ...
3
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1answer
105 views

Tempdb size strategy

I've recently started my role as a DBA and my initial task has been to take ownership and redeploy a database provided by a 3rd party to help us conform to GDPR legislation. As a consequence, I've ...
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0answers
34 views

Increasing tempdb data files on 2 node Availability Group

I am planning to create additional tempdb files for 2 nodes in a SQL 2012 Availability Group. Unfortunately we do not have Instant File Initialisation turned on so the growth of the tempdb data files ...
0
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1answer
86 views

Secondary Tempdb filling up on AG Setup

I'm currently facing this problem in one of my Production environments. I have an AG with around 130 DBs with readable secondaries enabled. However, there are not routing lists defined and ...
1
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1answer
170 views

SQL queries to find tempdb bloating

I am trying to find out the queries which would have run and caused bloat to TempDB. I am able to pull data like TempDB bloating on one particular day where it almost ate upto 300 GB of space, was ...
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0answers
452 views

SQL Server: Could not allocate a new page for database 'TEMPDB' because of insufficient disk space in filegroup 'DEFAULT'

I've just put in a request for our storage engineers to add more physical space for the LUN with tempdb. In this case, it was definitely needed. However, I'm disturbed by the SCOM report which flagged ...
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0answers
64 views

Filestream directory exists for a partition but the corresponding partition does not exist in the database

I am investigating a high memory usage issue of tempdb on a production SQL Server 2017 Enterprise (64-bit) deployment. This is similar to an issue discussed here. The server has two production DBs ...
0
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0answers
749 views

unable to shrink tempdb

My production server environment is Microsoft SQL Server 2014 (SP2-CU10-GDR). I split my tempdb files into 8 files (I have 8 CPU ) One day, my tempdb size 720 GB (each of file 90GB *8 ) I need to ...
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1answer
87 views

Is it a problem to have a large TempDB?

We have a vendor that has jobs set up to execute a stored procedure that builds a table in TempDB, creates indexes on it, inserts 100s of GB of data into it, does whatever it needs to with the data, ...
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2answers
145 views

Tempdb Splitting File/Filegroups among different Databases

A common problem placing databases on one server Instance is they all share same tempdb. Is it possible to allocate tempdb file/and filegroups for separate databases. Does Resource Governor allow this?...
0
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1answer
149 views

Unable to remove additional tempdb file

In our production DB, we only have 1 tempdb file and it had ballooned to 180GB. I ran: Alter Database tempdb modify file (name='tempdev', size=30gb); to resize the primary file, and then ran ...
2
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1answer
70 views

SQLServer tempdb datafiles

SQL newbie here, trying to understand how tempdb work when there is more than one datafile. To keep this simple, let's assume the server has three tempdb datafiles, each 10GB, totaling 30GB and are ...
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0answers
321 views

SQL TempDB PCI-E NVMe card - 4K or 64K

Our primary OLTP workload is tempdb heavy (both reads & writes) based on virtual_file_stats DMV, and based on SPs all of which heavily use #tmp tables. The server has 400GB of memory, more than ...
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2answers
844 views

How to Move TempDB Files to a Different Drive or Folder? [duplicate]

How do I move my TempDB Data or Log File(s) from wherever they are now to a different Drive or Folder?
1
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1answer
94 views

Is SQL Server's fill strategy the same for multi-file tempdb as multi-file (non-tempdb) filegroups?

Will tempdb I/O from a single query be split across multiple tempdb files? (assuming that tempdb is configured to use multiple files, of course!) For non-tempdb databases, MDSN seems to say that yes, ...
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0answers
186 views

Sys.dm_io_virtual_file_stats shows high latency for tempdb writes

We just got a new SAN and I was looking at sys.dm_io_virtual_file_stats to make sure we are seeing an improvement compared to our last SAN. I noticed that all the tempdb files are seeing avg write ...
12
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1answer
2k views

Why does truncating a temp table at the end of the stored procedure that creates it free tempdb space faster?

SQL Server caches temp tables created within stored procedures and merely renames them when the procedure ends and is subsequently executed. My question has to do with when the tempdb space is ...
3
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3answers
261 views

Configuring physical storage for a Microsoft SQL Server installation

I'm configuring a Microsoft SQL Server installation which will use a SAN for storage. For SAN storage I have: A small number of SSD disks A larger number of 10K disks My SAN supports storage ...
5
votes
1answer
170 views

Tempdb approaching disk max: Is it OK to wait?

Today my tempdb pushed up to the edge of the disk allocated. Currently, said disk only has 10 MB left. I'm pretty sure some bad reports run by a colleague earlier in the day pushed up the tempdb to ...
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1answer
987 views

temp tables in tempdb are not cleaned up by the system

My question is similar to the one asked here: SQL Server tempdb rogue temporary tables Since I don't have enough points to comment and the answer there doesn't address my concern, I can only ask a ...
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1answer
689 views

What could cause tempdb to remain large after restart?

After deploying an SSIS solution I found that tempdb filled up all the remaining hardrive space (250GB). I was then able to shrink it to about 70GB, where it has stayed even after a computer restart (...
2
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1answer
700 views

DBCC CHECKDB grows tempdb to a huge size - Legacy MS SQL Server 2008 R2 Instance

I have an older Microsoft SQL Server Instance (2008 R2 SU3 GDR - Build: 10.50.6220). When I run DBCC CHECKDB via a Maintenance Plan, the TempDB grows very large. The largest DB on the instance is ...
0
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1answer
323 views

TEMPDB File Growth with Multiple Files

There are a lot of blog postings about splitting tempdb into multiple files, and I understand the logic and reasoning behind this, but there is one question that never seems to get asked about a multi-...
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3answers
127 views

Possibility to implement time to execute / TempDB usage restrictions on some role groups in SQL Server?

I have a SQL Environment of which I am sysadmin. This Environment includes the Company data warehouse. I conduct many different jobs from this Environment, and it is also Another sysadmin which has ...
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0answers
246 views

Time-out tempdb

When the job is running, it takes a time-out error. Usually it works, sometimes get any errors. Job schedule : Occurs every day 3 minute Time-out occurred while waiting for buffer latch type 3 for ...
3
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0answers
228 views

Adding more tempdb data files gives more write latency

I am facing problems with tempdb please help and provide your suggestions. Initially, I have found tempdb contention problem in my server (Sql server) by using Simple talk Script. By using that ...
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2answers
58 views

SQL Server - What taks/queries should I need to execute when there is a lack of space in TempDB?

I am having some troubles loading data to my fact table. Every time that I want to insert, I'm getting the following issue: Could not allocate space for object 'dbo.SORT temporary run storage: ...