Scale Tenable Identity Exposure Services

Required User Role: Administrator on the local machine

To improve data processing performance, you can scale up or down these Tenable Identity Exposure services.

Cancri's scaling up mechanism goes through its reconfiguration using an environment variable.

To scale Cancri:

  1. Open a PowerShell (x64) terminal.

  2. Define the environment variable ALSID_CASSIOPEIA_CANCRI_Application__MaxConcurrentPublishToEridanis:

    Note: The default value is 100.
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    [Environment]::SetEnvironmentVariable("ALSID_CASSIOPEIA_CANCRI_Application__MaxConcurrentPublishToEridanis", "IntegerValue", "Machine")

  3. Restart Cancri:

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    Restart-Service -Name Alsid_Cancri

Example:

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[[Environment]::SetEnvironmentVariable("ALSID_CASSIOPEIA_CANCRI_Application__MaxConcurrentPublishToEridanis", "200", "Machine")
Restart-Service -Name Alsid_Cancri

To scale a new instance of EventLogsDecoder on a new machine, launch the installation program on this machine and follow the same procedure as the one you used for the first instance:

  • Default TLS

  • Default TLS in "Expert Mode"

  • TLS without Peer Verification

  • TLS with Peer Verification

  • No TLS

You do not need to restart any service because Tenable Identity Exposure automatically takes in account this new instance.

Note: It is not possible to add several instances of EventLogsDecoder on the same machine.

To scale up the total number of Eridanis instances, you must update the ERIDANIS_WORKER_COUNT environment variable.

To scale Eridanis:

  1. Open a PowerShell (x64) terminal.

  2. Run the following command (replace the value in brackets with the real expected value):

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    [System.Environment]::SetEnvironmentVariable('ERIDANIS_WORKER_COUNT', <number of Eridanis instances>, 'Machine')

  1. Restart Eridanis:

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    Restart-Service -Name 'alsid_Eridanis'

Example: For 3 Instances of Eridanis

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[System.Environment]::SetEnvironmentVariable('ERIDANIS_WORKER_COUNT', 3, 'Machine')
Restart-Service -Name 'alsid_Eridanis' -Force