Controller 25.4
Controller Reference

# SystemLimits

Returns details of the following system limits:

- maximum core file size (in bytes) - UNIX platforms only
- maximum file size (in bytes) - UNIX platforms only
- maximum map count - UNIX platforms only
- block size (in bytes)
- maximum number of open file handles
- the number of processors

On Microsoft Windows operating systems, the action returns a value of -1 for the limits in this list that are marked as UNIX platforms only. For these items, a value of -1 on a UNIX platform means that the item is unlimited.

NOTE: This is an administrative action that can be sent only by users that belong to an authorization role that allows the `Admin` standard role, or which enables the action explicitly. See Authorization Roles Configuration Parameters.

## Example

    http://12.3.4.56:9010/action=SystemLimits

This action requests the system limits from Controller.

## Optional Parameters

This action accepts the following standard ACI action parameters.

Parameter | Description
--- | ---
ActionID | A string to use to identify an ACI action.
FileName | The file to write output to.
ForceTemplateRefresh | Forces the server to load the template from disk.
Output | Writes output to a file.
ResponseFormat | The format of the action output.
Template | The template to use for the action output.
TemplateParamCSVs | A list of variables to use for the specified template.

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Controller 25.4

Topic Title: SystemLimits