Get-DbaTempdbUsage

Chrissy LeMaire (@cl), netnerds.net

Windows, Linux, macOS

Description

This function queries DMVs for running sessions using tempdb and returns results if those sessions have user or internal space allocated or deallocated against them.

Syntax

Get-DbaTempdbUsage
    [-SqlInstance] <DbaInstanceParameter[]>
    [[-SqlCredential] <PSCredential>]
    [-EnableException]
    [<CommonParameters>]

Examples

Example: 1

PS C:\> Get-DbaTempdbUsage -SqlInstance localhost\SQLDEV2K14

Gets tempdb usage for localhost\SQLDEV2K14

Required Parameters

-SqlInstance

The target SQL Server instance or instances.

Property	Value
Alias
Required	True
Pipeline	true (ByValue)
Default Value

Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).
Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported.
For MFA support, please use Connect-DbaInstance.

Property	Value
Alias
Required	False
Pipeline	false
Default Value

-EnableException

By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
This avoids overwhelming you with “sea of red” exceptions, but is inconvenient because it basically disables advanced scripting.
Using this switch turns this “nice by default” feature off and enables you to catch exceptions with your own try/catch.

Property	Value
Alias
Required	False
Pipeline	false
Default Value	False

Outputs

PSCustomObject

Returns one object per running session that has allocated or deallocated tempdb space. For sessions with no tempdb allocation activity, no object is returned.

Properties:

ComputerName: The name of the computer hosting the SQL Server instance
InstanceName: The SQL Server instance name
SqlInstance: The full SQL Server instance name (computer\instance)
Spid: Session ID of the running query (int)
StatementCommand: The SQL command being executed (SELECT, INSERT, UPDATE, DELETE, etc.)
QueryText: The actual T-SQL statement text being executed
ProcedureName: Schema-qualified name of the stored procedure if applicable
StartTime: DateTime when the request started executing
CurrentUserAllocatedKB: Current user object allocation in KB for this session (int)
TotalUserAllocatedKB: Total user object allocation in KB (int)
UserDeallocatedKB: User object deallocation in KB (int)
TotalUserDeallocatedKB: Total user object deallocation in KB (int)
InternalAllocatedKB: Internal object allocation in KB (int)
TotalInternalAllocatedKB: Total internal object allocation in KB (int)
InternalDeallocatedKB: Internal object deallocation in KB (int)
TotalInternalDeallocatedKB: Total internal object deallocation in KB (int)
RequestedReads: Number of physical read operations performed by the request (int)
RequestedWrites: Number of write operations performed by the request (int)
RequestedLogicalReads: Number of logical read operations performed by the request (int)
RequestedCPUTime: CPU time in milliseconds used by the request (int)
IsUserProcess: Boolean indicating if the session is a user process (true) or system process (false)
Status: Current status of the session (running, sleeping, dormant, etc.)
Database: Name of the database being accessed
LoginName: SQL Server login name
OriginalLoginName: Original login name before impersonation if applicable
NTDomain: Windows domain name if Windows authentication is used
NTUserName: Windows username if Windows authentication is used
HostName: Client computer hostname
ProgramName: Name of the client application (e.g., SQL Server Management Studio, SSMS)
LoginTime: DateTime when the session logged in
LastRequestedStartTime: DateTime when the last request started
LastRequestedEndTime: DateTime when the last request ended