functions/Start-DbaXESession.ps1
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function Start-DbaXESession { <# .SYNOPSIS Starts Extended Events sessions. .DESCRIPTION This script starts Extended Events sessions on a SQL Server instance. .PARAMETER SqlInstance The SQL Instances that you're connecting to. .PARAMETER SqlCredential Credential object used to connect to the SQL Server as a different user .PARAMETER Session Only start specific Extended Events sessions. .PARAMETER AllSessions Start all Extended Events sessions on an instance, ignoring the packaged sessions: AlwaysOn_health, system_health, telemetry_xevents. .PARAMETER InputObject Internal parameter to support piping from Get-DbaXESession .PARAMETER StopAt Sets up a self-deleting schedule to stop the Session at a specified time. .PARAMETER 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. .NOTES Tags: Xevent Author: Doug Meyers Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0 .LINK https://dbatools.io/Start-DbaXESession .EXAMPLE Start-DbaXESession -SqlInstance sqlserver2012 -AllSessions Starts all Extended Event Session on the sqlserver2014 instance. .EXAMPLE Start-DbaXESession -SqlInstance sqlserver2012 -Session xesession1,xesession2 Starts the xesession1 and xesession2 Extended Event sessions. .EXAMPLE Start-DbaXESession -SqlInstance sqlserver2012 -Session xesession1,xesession2 -StopAt (Get-Date).AddMinutes(30) Starts the xesession1 and xesession2 Extended Event sessions and stops them in 30 minutes. .EXAMPLE Get-DbaXESession -SqlInstance sqlserver2012 -Session xesession1 | Start-DbaXESession Starts the sessions returned from the Get-DbaXESession function. #> [CmdletBinding(DefaultParameterSetName = 'Session')] param ( [parameter(Position = 1, Mandatory, ParameterSetName = 'Session')] [parameter(Position = 1, Mandatory, ParameterSetName = 'All')] [Alias("ServerInstance", "SqlServer")] [DbaInstanceParameter[]]$SqlInstance, [parameter(ParameterSetName = 'Session')] [parameter(ParameterSetName = 'All')] [PSCredential]$SqlCredential, [parameter(Mandatory, ParameterSetName = 'Session')] [Alias("Sessions")] [object[]]$Session, [datetime]$StopAt, [parameter(Mandatory, ParameterSetName = 'All')] [switch]$AllSessions, [parameter(Mandatory, ValueFromPipeline, ParameterSetName = 'Object')] [Microsoft.SqlServer.Management.XEvent.Session[]]$InputObject, [switch]$EnableException ) begin { # Start each XESession function Start-XESessions { [CmdletBinding()] param ([Microsoft.SqlServer.Management.XEvent.Session[]]$xeSessions) foreach ($xe in $xeSessions) { $instance = $xe.Parent.Name $session = $xe.Name if (-Not $xe.isRunning) { Write-Message -Level Verbose -Message "Starting XEvent Session $session on $instance." try { $xe.Start() } catch { Stop-Function -Message "Could not start XEvent Session on $instance" -Target $session -ErrorRecord $_ -Continue } } else { Write-Message -Level Warning -Message "$session on $instance is already running" } Get-DbaXESession -SqlInstance $xe.Parent -Session $session } } function New-StopJob { [CmdletBinding()] param ( [Microsoft.SqlServer.Management.XEvent.Session[]]$xeSessions, [datetime]$StopAt ) foreach ($xe in $xeSessions) { $server = $xe.Parent $session = $xe.Name $name = "XE Session Stop - $session" # Setup the schedule time $time = ($StopAt).ToString("HHmmss") # Create the schedule $schedule = New-DbaAgentSchedule -SqlInstance $server -Schedule $name -FrequencyType Once -StartTime ($StopAt).ToString("HHmmss") -Force # Create the job and attach the schedule $job = New-DbaAgentJob -SqlInstance $server -Job $name -Schedule $schedule -DeleteLevel Always -Force # Create the job step $sql = "ALTER EVENT SESSION [$session] ON SERVER STATE = stop;" $jobstep = New-DbaAgentJobStep -SqlInstance $server -Job $job -StepName 'T-SQL Stop' -Subsystem TransactSql -Command $sql -Force } } } process { if ($InputObject) { Start-XESessions $InputObject } else { foreach ($instance in $SqlInstance) { $xeSessions = Get-DbaXESession -SqlInstance $instance -SqlCredential $SqlCredential # Filter xeSessions based on parameters if ($Session) { $xeSessions = $xeSessions | Where-Object { $_.Name -in $Session } } elseif ($AllSessions) { $systemSessions = @('AlwaysOn_health', 'system_health', 'telemetry_xevents') $xeSessions = $xeSessions | Where-Object { $_.Name -notin $systemSessions } } Start-XESessions $xeSessions if ($StopAt) { New-StopJob -xeSessions $xeSessions -StopAt $stopat } } } } } |