robot
2024.10
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Robot admin guide
Last updated Nov 12, 2024

High-density robots

In a UiPath High-Density (HD) environment, commonly known as HD robots, multiple robots run concurrently under different user accounts on Windows Server machines.

Because each user has its own unique environment and access permissions,you must provide each robot with user-specific paths to navigate the system or to access certain files or folders. Different paths considerations must be made depending on the Robot operational mode:

Robot mode

Path type

Considerations for multiple robots using the same path

Service mode

Local path

No restrictions

Network path

  • Not supported when Secure XAML is used.

  • Service mode robot installed on separate machines must have its own folder on the network.

  • Mapped network paths, such as Z:\Packages, are not supported. Use non-mapped path, such as \\server\Packages.

User Mode

Local path
  • You must add the NUGET_SCRATCH environment variable on the robot machine, and provide it with a value other than the NuGet installation one. This sets a different path for storing temporary NuGet files, to prevent potential conflicts when multiple robots attempt to use NuGet simultaneously.
  • The new temporary folder should be exclusive for the NUGET_SCRATCH variable.

  • The user accounts under which robots run must have read and write access to both NuGet folders on the machine.

Network path

The path must include the machine name and username.

<packageSettings>
  <add key="packagesInstallationFolder" value="\\NetworkServer\SharedFolder\UiPath\Packages\" />
</packageSettings><packageSettings>
  <add key="packagesInstallationFolder" value="\\NetworkServer\SharedFolder\UiPath\Packages\" />
</packageSettings>

HD robots particularities

A High-Density environment has the following particularities:

  • Requires Windows Server or Azure Windows 10 Enterprise Multi-session OSs.

  • Requires the LoginToConsole parameters to be set to false for all robots.

  • You can execute the same automation with all Robots at the same time.

  • You can execute different automations with all Robots at the same time.

  • In Service Mode installations, all robots operating on the machine connect to the same Orchestrator instance.

  • If the Robot Service is already active, you can add a new robot on the machine without restarting the service.

  • HD robots particularities

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