Troubleshooting
This article describes how to use XDPing to troubleshoot and how to query session data using the ctxsdcutil utility.
XDPing
The Linux XDPing tool is a command-line application. It automates the process of checking for common configuration issues with a Linux VDA environment.
The Linux XDPing tool performs over 150 individual tests on the system, which are broadly categorized as follows:
- Check whether Linux VDA system requirements are met.
- Identify and display machine information including the Linux distributions.
- Check the Linux kernel compatibility.
- Check for any known Linux distribution issues that can impact the Linux VDA operation.
- Check the Security-Enhanced Linux (SELinux) mode and compatibility.
- Identify network interfaces and check network settings.
- Check storage partitioning and available disk space.
- Check machine host and domain name configuration.
- Check DNS configuration and perform lookup tests.
- Identify underlying hypervisors and check virtual machine configuration. Support for:
- Citrix Hypervisor
- Microsoft HyperV
- VMware vSphere
- Check time settings and check whether network time synchronization is operational.
- Check whether the PostgreSQL service is properly configured and operational.
- Check whether the firewall is enabled and the required ports are open.
- Check Kerberos configuration and perform authentication tests.
- Check the LDAP search environment for the group policy service engine.
- Check whether Active Directory integration is set up properly and the current machine is joined to the domain. Support for:
- Samba Winbind
- Dell Quest Authentication Services
- Centrify DirectControl
- SSSD
- Check the integrity of the Linux computer object in Active Directory.
- Check Pluggable Authentication Module (PAM) configuration.
- Check the core dump pattern.
- Check whether packages required by the Linux VDA are installed.
- Identify the Linux VDA package and check the integrity of the installation.
- Check the integrity of the PostgreSQL registry database.
- Check whether the Linux VDA services are properly configured and operational.
- Check the integrity of the VDA and HDX configuration.
- Probe each configured Delivery Controller to test that the Broker Service is reachable, operational, and responsive.
- Check whether the machine is registered with the Delivery Controller farm.
- Check the state of each active or disconnected HDX session.
- Scan log files for the Linux VDA related errors and warnings.
- Check whether the version of Xorg is suitable.
Use the Linux XDPing tool
Note:
Running ctxsetup.sh does not install XDPing. You can run
sudo /opt/Citrix/VDA/bin/xdpingto install XDPing. This command also creates a Python3 virtual environment that is required for XDPing. If this command fails to create a Python3 virtual environment, create it manually following the instructions at Create a Python3 virtual environment.To address SSL connection errors that you might encounter when using the pip tool, consider adding the following trusted hosts to the /etc/pip.conf file:
[global]
trusted-host =
pypi.org
files.pythonhosted.org
XDPing comes with the single executable named xdping that is run from the command shell.
To display the command-line options, use the -h option:
sudo /opt/Citrix/VDA/bin/xdping -h
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To run the full suite of tests, run xdping without any command-line options:
sudo /opt/Citrix/VDA/bin/xdping
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To check the environment before installing the Linux VDA package, run the pre-flight tests:
sudo /opt/Citrix/VDA/bin/xdping --preflight
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To run specific test categories only, for example, the time and Kerberos tests, use the -T option:
sudo /opt/Citrix/VDA/bin/xdping -T time,kerberos
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To probe a particular XenDesktop Controller:
sudo /opt/Citrix/VDA/bin/xdping -d myddc.domain.net
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Sample Output
The following is a sample output from running the Kerberos test:
Session data query utility
We provide a utility (ctxsdcutil) that you can use to query session data on each Linux VDA. To query the following data of all sessions or a specific session hosted on a VDA, run the /opt/Citrix/VDA/bin/ctxsdcutil -q <all | SessionID> [-c] command. The [-c] argument means to query data every second.
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Input Session Bandwidth
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Output Session Bandwidth
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Output Session Line Speed
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Latency - Last Recorded
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Round Trip Time
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Output ThinWire Bandwidth
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Output Audio Bandwidth
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Output Printer Bandwidth
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Input Drive Bandwidth
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Output Drive Bandwidth