Public/Wait-StmClusteredScheduledTask.ps1
|
function Wait-StmClusteredScheduledTask { <# .SYNOPSIS Waits for a clustered scheduled task to complete execution on a Windows failover cluster. .DESCRIPTION The Wait-StmClusteredScheduledTask function monitors a clustered scheduled task and waits for it to complete its execution. This function polls the task state at regular intervals and provides progress feedback through Write-Progress. The function will exit when the task is no longer in the 'Running' state or when the specified timeout is reached. This is useful for automation scenarios where you need to wait for a task to complete before proceeding with subsequent operations. .PARAMETER TaskName Specifies the name of the clustered scheduled task to wait for. This parameter is mandatory. .PARAMETER Cluster Specifies the name or FQDN of the cluster where the scheduled task is located. This parameter is mandatory. .PARAMETER Credential Specifies credentials to use when connecting to the cluster. If not provided, the current user's credentials will be used for the connection. .PARAMETER PollingIntervalSeconds Specifies the interval in seconds between state checks of the clustered scheduled task. The default value is 5 seconds. This parameter is optional. .PARAMETER TimeoutSeconds Specifies the maximum time in seconds to wait for the task to complete. If the timeout is reached, the function will throw an error. The default value is 300 seconds (5 minutes). This parameter is optional. .EXAMPLE Wait-StmClusteredScheduledTask -TaskName "BackupTask" -Cluster "MyCluster" Waits for the clustered scheduled task named "BackupTask" on cluster "MyCluster" to complete, using default polling interval (5 seconds) and timeout (300 seconds). .EXAMPLE Wait-StmClusteredScheduledTask ` -TaskName "MaintenanceTask" ` -Cluster "MyCluster.contoso.com" ` -TimeoutSeconds 600 Waits for the clustered scheduled task named "MaintenanceTask" on cluster "MyCluster.contoso.com" to complete, with a timeout of 10 minutes (600 seconds). .EXAMPLE $credential = Get-Credential Wait-StmClusteredScheduledTask ` -TaskName "ReportTask" ` -Cluster "MyCluster" ` -Credential $credential ` -PollingIntervalSeconds 10 Waits for the clustered scheduled task named "ReportTask" on cluster "MyCluster" using specified credentials, checking the task state every 10 seconds. .EXAMPLE Wait-StmClusteredScheduledTask ` -TaskName "LongRunningTask" ` -Cluster "MyCluster" ` -TimeoutSeconds 1800 ` -Verbose Waits for the clustered scheduled task named "LongRunningTask" on cluster "MyCluster" with a 30-minute timeout and verbose output to show detailed information about the waiting process. .INPUTS None. You cannot pipe objects to Wait-StmClusteredScheduledTask. .OUTPUTS None. This function does not return any output objects. .NOTES This function requires: - The FailoverClusters PowerShell module to be installed on the target cluster - Appropriate permissions to access clustered scheduled tasks - Network connectivity to the cluster - The task must exist on the specified cluster The function provides: - Progress bar showing elapsed time and current task state - Verbose output for troubleshooting - Configurable polling interval and timeout - Error handling for timeout scenarios The function will exit when: - The task state is no longer 'Running' (task completed, failed, or stopped) - The specified timeout is reached (throws an error) Use this function in automation scenarios where you need to ensure a task has completed before proceeding with subsequent operations. #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string] $TaskName, [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string] $Cluster, [Parameter(Mandatory = $false)] [ValidateNotNull()] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential = [System.Management.Automation.PSCredential]::Empty, [Parameter(Mandatory = $false)] [int] $PollingIntervalSeconds = 5, [Parameter(Mandatory = $false)] [int] $TimeoutSeconds = 300 ) begin { Write-Verbose "Starting Wait-StmClusteredScheduledTask for task '$TaskName' on cluster '$Cluster'" $startTime = Get-Date } process { $activity = "Waiting for clustered scheduled task '$TaskName' to complete" $status = '' $percentComplete = 0 while ($true) { $clusteredScheduledTaskParameters = @{ TaskName = $TaskName Cluster = $Cluster Credential = $Credential } $scheduledTask = Get-StmClusteredScheduledTask @clusteredScheduledTaskParameters $state = $scheduledTask.ScheduledTaskObject.State $elapsed = (Get-Date) - $startTime $percentComplete = [math]::Min([math]::Round(($elapsed.TotalSeconds / $TimeoutSeconds) * 100), 100) $status = 'Elapsed: {0:N0}s / {1}s | State: {2}' -f $elapsed.TotalSeconds, $TimeoutSeconds, $state Write-Progress -Activity $activity -Status $status -PercentComplete $percentComplete Write-Verbose "Current state of task '$TaskName': $state" if ($state -ne 'Running') { Write-Progress -Activity $activity -Completed Write-Verbose "Task '$TaskName' is no longer running. Exiting wait." break } if ($elapsed.TotalSeconds -ge $TimeoutSeconds) { Write-Progress -Activity $activity -Completed $errorRecordParameters = @{ Exception = [System.TimeoutException]::new("Timeout reached while waiting for task '$TaskName' to complete.") ErrorId = 'TimeoutReached' ErrorCategory = [System.Management.Automation.ErrorCategory]::OperationTimeout TargetObject = $TaskName Message = "Timeout reached while waiting for task '$TaskName' to complete." } $errorRecord = New-StmError @errorRecordParameters $PSCmdlet.ThrowTerminatingError($errorRecord) break } Start-Sleep -Seconds $PollingIntervalSeconds } } end { Write-Verbose "Completed Wait-StmClusteredScheduledTask for task '$TaskName'" } } |