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Citrix DaaS
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Cloud Health Check

August 27, 2024
Contributed by: 
C

Note:

Cloud Health Check is integrated into Citrix DaaS. The integration is available as the Run Health Check action in Studio. For more information, see Troubleshoot VDA registration and session launch issues.

Cloud Health Check allows you to run checks that gauge the health and availability of the site and its components. You can run health checks for Virtual Delivery Agents (VDAs), StoreFront servers, and Profile Management. VDA health checks identify possible causes for common VDA registration and session launch issues.

If issues are present during the checks, Cloud Health Check provides a detailed report and the actions to fix the issues. Each time Cloud Health Check starts, it checks for the latest version of scripts on the Content Delivery Network (CDN) and automatically downloads the scripts if they do not exist on the local machine. Cloud Health Check always chooses the latest local version of scripts to run health checks.

Note:

Cloud Health Check does not update every time it runs.

In a Citrix Cloud environment, run Cloud Health Check from a domain-joined machine to run checks on one or more VDAs or StoreFront servers.

Note:

You cannot install or run Cloud Health Check on a Cloud Connector.

The log for the Cloud Health Check application is stored in C:\ProgramData\Citrix\TelemetryService\CloudHealthCheck.log. You can use this file for troubleshooting.

View an introduction to Cloud Health Check.

What is Cloud Health Check

View when to use Cloud Health Check.

When to use Cloud Health Check

Installation

To prepare your environment for installation of Cloud Health Check, you must have a domain-joined Windows machine.

Note:

You cannot install or run Cloud Health Check on Cloud Connector.

  1. On the domain-joined machine, download the Cloud Health Check installer.
  2. Double-click the CloudHealthCheckInstaller_x64.msi file.
  3. Click the box to accept the terms.

  4. Click Install.

    cloud health check 1

  5. After installation has completed, click Finish.

    cloud health check 2

Permissions and requirements

Permissions:

  • To run health checks:

    • You must be a member of the domain users group.
    • You must be a full administrator or have a custom role with read-only and Run Environment Tests permissions for the site.
    • Set the script execution policy to at least RemoteSigned to allow the scripts to run. For example: Set-ExecutionPolicy RemoteSigned. Note: other script execution permissions can work as well.

  • Use Run as administrator when launching Cloud Health Check.

For each VDA or StoreFront machine that you run health checks on:

  • The OS must be 64-bit.
  • Cloud Health Check must be able to communicate with the machine.
  • File and printer sharing must be turned on.
  • PSRemoting and WinRM must be enabled. The machine must also be running PowerShell 3.0 or later.
  • Windows Management Infrastructure (WMI) access must be enabled on the machine.

About health checks

Health check data is stored in folders under C:\ProgramData\Citrix\TelemetryService\.

VDA health checks

For registration on the VDA, Cloud Health Check checks:

  • VDA software installation
  • VDA machine domain membership
  • VDA communication port availability
  • VDA service status
  • Windows firewall configuration
  • Communication with Controller
  • Time sync with Controller
  • VDA registration status

For session launches on VDAs, Cloud Health Check checks:

  • Session launch communication port availability
  • Session launch services status
  • Session launch Windows firewall configuration
  • VDA Remote Desktop Services Client Access Licenses
  • VDA application launch path
  • Session launch registry settings
  • Citrix Universal Injection Driver (CTXUVI) status

For Profile Management on VDAs, Cloud Health Check checks:

  • Hypervisor detection
  • Provisioning detection
  • Citrix Virtual Apps and Desktops
  • Personal vDisk configuration
  • User store
  • Profile Management Service status detection
  • Winlogon.exe hooking test

To run checks on Profile Management, you must install and enable Profile Management on the VDA. For more information on Profile Management configuration checks, see Knowledge Center article CTX132805.

StoreFront health checks

StoreFront checks verify whether:

  • Citrix Default Domain service is running
  • Citrix Credential Wallet service is running
  • The connection from the StoreFront server to Active Directory is port 88
  • The connection from the StoreFront server to Active Directory is port 389
  • The connection from the StoreFront server to Active Directory is port 464
  • The base URL has a valid FQDN
  • The correct IP address from the base URL can be retrieved
  • The IIS application pool is using .NET 4.0
  • The certificate is bound to the SSL port for the host URL
  • The certificate chain is complete
  • The certificates have expired
  • A certificate is expiring within 30 days

Running Cloud Health Check

To run Citrix Cloud Health Check:

  1. Select Citrix > Citrix Cloud Health Check from the machine’s Start menu, or run CloudHealthCheck.exe in C:\Program Files\Citrix\CloudHealthCheck.

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  2. On the main Cloud Health Check screen, click Add machine.

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  3. Type the FQDN of the machine you want to add. Note: Although entering a DNS alias instead of an FQDN can appear valid, the health checks might fail.
  4. Click Continue.

  5. Repeat to add other machines as needed.

    cloud health check 5

  6. To remove a manually added machine, click the X on the right end of the row and confirm the deletion. Repeat to delete other manually added machines.

Cloud Health Check remembers manually added machines until you remove them. When you close and then reopen Cloud Health Check, the manually added machines are still listed at the top of the list.

Import VDA machines

You can import VDA machines in the deployment when running health checks.

  1. On Connector, generate the machine list file with the following PowerShell command. On Connector, you must input Citrix credentials and select the customer in the pop-up dialog.

Get-BrokerMachine| foreach { $_.DnsName } | out-file C:\machineList.txt

  1. Copy the machineList.txt file to the domain-joined machine you want to run Cloud Health Check on.
  2. On the Cloud Health Check page, click Add Machine.
  3. Select the Windows VDA machine type.
  4. Click Import VDA machines.
  5. Select the machineList.txt file.

  6. Click Open.

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    The imported VDA machines are listed on the Cloud Health Check page.

  7. Select the check box next to each machine you want to run health checks on.

    Cloud Health Check automatically launches verification tests on each selected machine, making sure it meets the criteria listed in verification tests. If verification fails, a message appears in the Status column, and that machine’s check box is cleared. You can then:

    • Resolve the issue and then select the machine’s check box again. This triggers a retry of the verification tests.
    • Skip that machine by leaving its check box unselected. Health checks are not run for that machine.

  8. When the verification tests are complete, click Continue.

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  9. Run the health checks on the selected machines. The summary lists the machines where the tests run (the machines you selected that passed the verification tests).

  10. Click Start Checking.

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    During and after checking, the Status column indicates the current checking state for a machine.

  11. To stop all in-progress checks, click Stop Checking in the lower right corner of the page. You can’t cancel a single machine’s health check, you can only cancel the check for all selected machines.

    cloud health check 9

  12. When the checks are complete for all selected machines, the Stop Checking button in the lower right corner changes to Done.

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    • If a check fails, you can click Retry in the Action column.
    • If a check completes with no issues found, the Action column is empty.
    • If a check finds issues, click View Details to view the results.

    cloud health check 11

If you use Internet Explorer to view the report, you must click Allow blocked content to display the hyperlink.

Cloud health check 12

After the check completes for all selected machines, clicking Back causes you to lose your check results.

When the checks complete, click Done to return to the Cloud Health Check main screen.

Retrieve VDA machines

Cloud Health Check can automatically detect and retrieve VDAs from your Citrix DaaS (formerly Citrix Virtual Apps and Desktops service) deployments.

To retrieve your VDAs:

  1. Prepare a new machine that is joined to the same domain forest as the machine Cloud Health Check runs on.

  2. Open Cloud Health Check and click Find machine to sign in to Citrix Cloud.

    Cloud health check retrieve 1

  3. Select the customer with the cloud site you want to retrieve.

    Cloud health check retrieve 2

The VDA list displays in Cloud Health Check. The list is also saved in a local file located at \ProgramData\Citrix\TelemetryService\ChcDiscovery\ChcDiscoveredMachineList.json.

Cloud health check retrieve 3

Your machine list loads the local cache when you open Cloud Health Check again. If you have made any updates in your deployment, you must click Find machine to refresh the machine list.

Note:

  • Cloud Health Check finds machines only in the same domain forest as the machine Cloud Health Check runs on.
  • Citrix Cloud sessions expire in one hour. After one hour, you must click Find machine again to get the latest VDA list.
  • An error message pops up if retrieving the VDA list fails. You can check the details in C:\ProgramData\Citrix\TelemetryService\CloudHealthCheck.log.

Cloud health check retrieve 4

Heath check results

Health checks that generate reports contain the following elements:

  • Time and date when the results report was generated
  • FQDNs of the machines that were checked
  • Conditions checked on the target machines

Running Cloud Health Check on the command line

Cloud Health Check can be run on the command line to help customers to perform health checks. To use Cloud Health Check on the command line, you must be an administrator on the machine Cloud Health Check is running on.

Note:

When using Cloud Health Check on the command line, only one machine can be checked at a time. Only one instance of CloudHealthCheck.exe can be run at the same time on the target machine. If you want to check multiple machines, the machines must be checked one by one, by wrapping the cmdlets in a loop in cmdlet/PowerShell scripts. Any opened UI instance of Cloud Health Check must also be closed.

Cmdlets

The supported command line cmdlets are:

  • MachineFQDN - This cmdlet is mandatory. This is the fully qualified domain name of the target machine.
  • MachineType - This cmdlet is optional. The cmdlet value can be the Windows VDA (default value) or StoreFront.
  • ReportName - This cmdlet is optional. The cmdlet value must be a valid file name on Windows. The default value is HealthCheckReport.
  • SkipAdminCheck - This cmdlet is optional. This can be added to skip the checks that require administrator permissions.
  • UpdateScripts - This cmdlet is optional. This can be added to update the check scripts from CDN server.
  • DisableCeip - This cmdlet is optional if CEIP is enabled on the UI, add it to disable CEIP.
  • Help - Show help information about parameters.

Examples:

HealthCheckCLI.exe -MachineFQDN machine.domain.local

HealthCheckCLI.exe -MachineFQDN machine.domain.local -ReportName checkreport

HealthCheckCLI.exe -MachineFQDN machine.domain.local -SkipAdminCheck

HealthCheckCLI.exe -MachineFQDN machine.domain.local -UpdateScripts

HealthCheckCLI.exe -MachineFQDN machine1.domain.local,machine2.domain.local,machine3.domain.local

HealthCheckCLI.exe -Help

Note:

Parameter names are not case sensitive.

By default, the console output is not shown in the command line console window. You can manually display the output by appending |more to the cmdlet.

Example: HealthCheckCLI.exe -MachineFQDN machine.domain.local|more

The command line default needs administrator permissions to run. Add the parameter -SkipAdminCheck to override the need for administrator permissions.

Exit codes

Exit codes explain the result of Cloud Health Check checks within the command line. To get the exit code, you must add start /wait before the cmdlet.

Example: start /wait HealthCheckCLI.exe -MachineFQDN machine.domain.local

Exit codes are:

  • 0 - Normal, check completed and passed.
  • 1 - Failure, check completed with issues.
  • 2 - Error, check not completed with errors.

You can also use the cmdlet echo %errorlevel% to get the exit code for the last ran command.

Reports

Cloud Health Check creates folders with the name of the machine in HealthCheckDataFolder for the target machine. An .html file and a .json file are created on the machine Cloud Health Check is installed on. Health check reports are located in the HealthCheckDataFolder in %ProgramData%\Citrix\TelemetryService\HealthCheck\Data.

Reports are only created when issues exist on the target machine.

Note:

The report files are overwritten if the specified report name exists.

Alerts and basic information are stored in the .json report.

JSON report screenshot

Report codes are:

  • issueKey: a plain text description of the issue.
  • issueUuid: a unique identifying string for the issue.
  • fixRecommendation: the fix recommendation for the issue.
  • severity: indicates if the issue must be fixed. An error can indicate that the component (VDA or StoreFront) malfunctioned, and a warning indicates that the component can work but might have some potential issues.
  • issueName: the title of the issue.
  • issueDescription: a detailed description of the issue.

Updating Cloud Health Check

If there is a new version of Cloud Health Check available, an Update available link displays on the top right of the Cloud Health Check window. Click the link to go to Citrix Downloads to get the new version.

Updating cloud health check

Cloud Health Check scheduler

Use the Cloud Health Check scheduler to perform periodic health checks.

Set up the schedule

  1. Click Add machine in the Cloud Health Check main window to add machines that you want to run periodic checks on.

    cloud health check scheduler 1

  2. Click the clock icon, then click Set schedule.

    cloud health check scheduler 2

  3. Select a time for your schedule, then click Next. The task can be set to repeat by selecting the Repeat task every check box.
  4. Choose to output results to Windows Event Log. The task can be set to write the results to Windows Event Log.
  5. Choose to trigger a custom PowerShell script after the scheduled check finishes, and then click Next.
    • Click Edit to edit the script content in Windows PowerShell ISE if needed.
    • Click Locate to open the file location and to use a different editor to open the file to edit the script.
    • Click Reset to reset the script to its original setting.

      Note:

      • You cannot change the script name and path for the script.
      • You can implement custom actions using the ChcShceduledTrigger.ps1 script, such as sending an email after the scheduled check report is ready. Add the following code to the end of the script. Customize the code to add the correct email accounts and the SMTP server address. An email notification is sent using the credentials of the account that the scheduled task runs.
    #Sending email example code:
$body = "CreatedTime: $($report.CreatedTime)"
$body = $body + "`nStatusCode: $($report.StatusCode)"
$body = $body + "`nMachineCount: $($report.MachineReports.Count)"
$from = "mock_email_accout"
$to = "mock_email_accout"
$smtpServer = "mock_smtp_server"

Send-MailMessage -Subject "Citrix Cloud Health Check Scheduler Report" -Body $body -From $from -To $to -SmtpServer $smtpServer
<!--NeedCopy-->

    cloud health check scheduler 3

  6. Select the machines for your schedule, then click Next.

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  7. Input the credentials of the account that the task runs on, then click Finish.

    cloud health check scheduler 5

  8. A CloudHealthCheckScheduler task is created in Windows Task Scheduler.

    cloud health check scheduler 6

View schedule results

The clock icon with a red dot indicates that issues were found in the last check. To view the results, click the clock icon, then click View results.

Cloud health check scheduler 7

The Schedule Reports page shows the results for all the scheduled health check tasks. Click View Report to check the report for each schedule.

Cloud health check scheduler 14

The html report lists the overall report for each schedules. An example of the report is below:

Cloud health check scheduler 12

All health check results are stored in a folder called ChcSchedule. Cloud Health Check creates three files during each check run. Up to 500 iteration logs are kept.

Cloud health check scheduler 8

Cloud health check scheduler 11

If the Output results to Windows Event Log checkbox is selected, the check result is also sent to Window Event Log.

Cloud health check scheduler 13

Disable schedules

  1. Click the clock icon, then click Set schedule.

    cloud health check scheduler 9

  2. Click Off, then click Finish to disable the scheduler.

    cloud health check scheduler 10

More information

  • You must add or import VDAs to Cloud Health Check first. For more information, see Import VDA Machines.
  • The Cloud Health Check scheduler can only schedule one task at a time on a domain-joined machine. If you set the schedule multiple times, only the latest one takes effect.

Verification tests

Before a health check starts, verification tests run automatically for each selected machine. These tests make sure that the requirements are met for a health check to run. If a test fails for a machine, Cloud Health Check displays a message with suggested corrective actions.

  • Cloud Health Check cannot reach this machine - Ensure that:
    • The machine is powered on.
    • The network connection is working properly. (This can include verifying that your firewall is properly configured.)
    • File and printer sharing is turned on. See the Microsoft documentation for instructions.
  • Enable PSRemoting and WinRM - You can enable PowerShell remoting and WinRM by running PowerShell as an administrator, then running the Enable-PSRemoting cmdlet. For details, see the Microsoft help for the cmdlet.
  • Cloud Health Check requires PowerShell 3.0 or later - Install PowerShell 3.0 or later on the machine, and then enable PowerShell remoting.
  • WMI is not running on the machine - Ensure that Windows Management Instrumentation (WMI) access is enabled.
  • WMI connections blocked - Enable WMI in the Windows Firewall service.

Usage data collection

When you use Cloud Health Check, Citrix uses Google Analytics to collect anonymous usage data to be used for future product features and improvements. Data collection is enabled by default.

To change usage data collection and upload, click the Settings gear in the Cloud Health Check UI. You can then choose whether to send the information by selecting Yes or No and then clicking Save.

Cloud health check 13

Automatic fix

Automatic fix allows Cloud Health Check to automatically detect and fix certain issues by changing the settings or restarting the services.

Automatic fix checks the following VDA registration items, with the recommended fixes:

  • VDA machine domain membership
    • Fix: Test connection security channel with a “repair” model to fix
  • VDA services status
    • Fix: Restart BrokerAgent service
  • Communication with Controller
    • Fix: Restart BrokerAgent service
  • Time sync with Controller
    • Fix: Run W32tm command

For session launches, automatic fix checks the following item, with the recommended fix:

  • Session launch service status
    • Fix: Restart BrokerAgent service

This feature is enabled by default. To disable it, click the gear icon in the upper right corner of the Cloud Health Check main window and then clear Attempt to automatically fix VDA issues during health check.

Cloud health check autofix 1

Result report

After running automatic fix, there is a section in the check results report to show all the details:

Cloud health check autofix 2

Cloud health check autofix 3

Troubleshooting

When Cloud Health Check fails to run or any exception occurs, check the Cloud Health Check log in C:\ProgramData\Citrix\TelemetryService\CloudHealthCheck.log.

The Cloud Health Check log for each target machine is in C:\ProgramData\Citrix\TelemetryService\HealthCheck\Data\$TargetMachineFQDN\log.txt.

To enable the debug log:

Edit C:\Program Files\Citrix\CloudHealthCheck\CloudHealthCheck.exe.config, update <add name="TraceLevelSwitch" value="3" /> to <add name="TraceLevelSwitch" value="4" />, save the file and reopen Cloud Health Check.

Feedback

To leave feedback on Cloud Health Check, fill out the Citrix survey.

Cloud Health Check
August 27, 2024
Contributed by: 
C
August 27, 2024
Contributed by: 
C

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