functions/Copy-DbaExtendedEvent.ps1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
function Copy-DbaExtendedEvent {
    <#
  .SYNOPSIS
   Migrates SQL Extended Event Sessions except the two default sessions, AlwaysOn_health and system_health.
 
  .DESCRIPTION
   Migrates SQL Extended Event Sessions except the two default sessions, AlwaysOn_health and system_health.
    
   By default, all non-system Extended Events are migrated.
 
  .PARAMETER Source
   Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2000 or higher.
 
  .PARAMETER SourceSqlCredential
   Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use:
 
   $scred = Get-Credential, then pass $scred object to the -SourceSqlCredential parameter.
 
   Windows Authentication will be used if SourceSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials.
 
   To connect as a different Windows user, run PowerShell as that user.
 
  .PARAMETER Destination
   Destination SQL Server. You must have sysadmin access and the server must be SQL Server 2000 or higher.
 
  .PARAMETER DestinationSqlCredential
   Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use:
 
   $dcred = Get-Credential, then pass this $dcred to the -DestinationSqlCredential parameter.
 
   Windows Authentication will be used if DestinationSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials.
 
   To connect as a different Windows user, run PowerShell as that user.
 
  .PARAMETER XeSession
   The Extended Event Session(s) to process. This list is auto-populated from the server. If unspecified, all Extended Event Sessions will be processed.
 
  .PARAMETER ExcludeXeSession
   The Extended Event Session(s) to exclude. This list is auto-populated from the server.
 
  .PARAMETER WhatIf
   If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run.
 
  .PARAMETER Confirm
   If this switch is enabled, you will be prompted for confirmation before executing any operations that change state.
 
  .PARAMETER Silent
   If this switch is enabled, the internal messaging functions will be silenced.
 
  .PARAMETER Force
   If this switch is enabled, existing Extended Events sessions on Destination with matching names from Source will be dropped.
 
  .NOTES
   Tags: Migration, ExtendedEvent, XEvent
   Author: Chrissy LeMaire (@cl), netnerds.net
   Requires: sysadmin access on SQL Servers
 
   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/Copy-DbaExtendedEvent
 
  .EXAMPLE
   Copy-DbaExtendedEvent -Source sqlserver2014a -Destination sqlcluster
 
   Copies all Extended Event sessions from sqlserver2014a to sqlcluster using Windows credentials.
 
  .EXAMPLE
   Copy-DbaExtendedEvent -Source sqlserver2014a -Destination sqlcluster -SourceSqlCredential $cred
 
   Copies all Extended Event sessions from sqlserver2014a to sqlcluster using SQL credentials for sqlserver2014a and Windows credentials for sqlcluster.
 
  .EXAMPLE
   Copy-DbaExtendedEvent -Source sqlserver2014a -Destination sqlcluster -WhatIf
 
   Shows what would happen if the command were executed.
 
  .EXAMPLE
   Copy-DbaExtendedEvent -Source sqlserver2014a -Destination sqlcluster -XeSession CheckQueries, MonitorUserDefinedException
 
   Copies only the Extended Events named CheckQueries and MonitorUserDefinedException from sqlserver2014a to sqlcluster.
 #>

    [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)]
    param (
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Source,
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Destination,
        [PSCredential]
        $SourceSqlCredential,
        [PSCredential]
        $DestinationSqlCredential,
        [object[]]$XeSession,
        [object[]]$ExcludeXeSession,
        [switch]$Force,
        [switch]$Silent
    )
    begin {    
    
        $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential -MinimumVersion 10
        $destServer = Connect-SqlInstance -SqlInstance $Destination -SqlCredential $DestinationSqlCredential -MinimumVersion 10

        $source = $sourceServer.DomainInstanceName
        $destination = $destServer.DomainInstanceName
    }
    process {

        $sourceSqlConn = $sourceServer.ConnectionContext.SqlConnectionObject
        $sourceSqlStoreConnection = New-Object Microsoft.SqlServer.Management.Sdk.Sfc.SqlStoreConnection $sourceSqlConn
        $sourceStore = New-Object  Microsoft.SqlServer.Management.XEvent.XEStore $sourceSqlStoreConnection

        $destSqlConn = $destServer.ConnectionContext.SqlConnectionObject
        $destSqlStoreConnection = New-Object Microsoft.SqlServer.Management.Sdk.Sfc.SqlStoreConnection $destSqlConn
        $destStore = New-Object  Microsoft.SqlServer.Management.XEvent.XEStore $destSqlStoreConnection

        $storeSessions = $sourceStore.Sessions | Where-Object { $_.Name -notin 'AlwaysOn_health', 'system_health' }
        if ($XeSession) {
            $storeSessions = $storeSessions | Where-Object Name -In $XeSession
        }
        if ($ExcludeXeSession) {
            $storeSessions = $storeSessions | Where-Object Name -NotIn $ExcludeXeSession
        }

        Write-Message -Level Verbose -Message "Migrating sessions."
        foreach ($session in $storeSessions) {
            $sessionName = $session.Name

            $copyXeSessionStatus = [pscustomobject]@{
                SourceServer = $sourceServer.Name
                DestinationServer = $destServer.Name
                Name = $sessionName
                Status = $null
                DateTime = [DbaDateTime](Get-Date)
            }

            if ($destStore.Sessions[$sessionName] -ne $null) {
                if ($force -eq $false) {
                    $copyXeSessionStatus.Status = "Skipped"
                    $copyXeSessionStatus

                    Write-Message -Level Warning -Message "Extended Event Session '$sessionName' was skipped because it already exists on $destination."
                    Write-Message -Level Warning -Message "Use -Force to drop and recreate."
                    continue
                }
                else {
                    if ($Pscmdlet.ShouldProcess($destination, "Attempting to drop $sessionName")) {
                        Write-Message -Level Verbose -Message "Extended Event Session '$sessionName' exists on $destination."
                        Write-Message -Level Verbose -Message "Force specified. Dropping $sessionName."

                        try {
                            $destStore.Sessions[$sessionName].Drop()
                        }
                        catch {
                            $copyXeSessionStatus.Status = "Failed"
                            $copyXeSessionStatus

                            Stop-Function -Message "Unable to drop session. Moving on." -Target $sessionName -InnerErrorRecord $_ -Continue
                        }
                    }
                }
            }

            if ($Pscmdlet.ShouldProcess($destination, "Migrating session $sessionName")) {
                try {
                    $sql = $session.ScriptCreate().GetScript() | Out-String

                    Write-Message -Level Debug -Message $sql
                    Write-Message -Level Verbose -Message "Migrating session $sessionName."
                    $null = $destServer.Query($sql)

                    if ($session.IsRunning -eq $true) {
                        $destStore.Sessions.Refresh()
                        $destStore.Sessions[$sessionName].Start()
                    }
# Will correcting the spelling of this status cause downstream problems?
                    $copyXeSessionStatus.Status = "Successful"
                    $copyXeSessionStatus
                }
                catch {
                    $copyXeSessionStatus.Status = "Failed"
                    $copyXeSessionStatus

                    Stop-Function -Message "Unable to create session." -Target $sessionName -InnerErrorRecord $_
                }
            }
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -Silent:$false -Alias Copy-SqlExtendedEvent
    }
}