System Properties in a Service Config

Updated on 22 May 2023

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System properties are used to control service level internal properties, such as v8 and node properties for a service process. System properties are set in the Services page (Applications and Adapters) by adding systemProps as a top level property.

The following properties are available for systemProps:

Property	Type	Default	Description
`maxOldSpaceSize`	Integer	2048	The `maxOldSpaceSize` property sets the maximum memory size (in MBs) of a service's process (v8 old memory section). This system property is set to 2 GB by default for all services except for Workflow Engine, which is set to 8 GB by default. The `maxOldSpaceSize` is specified in Admin Essentials→Applications→Admin Essentials service configuration file by adding `systemProps` as a top level property.

Here is a sample configuration for a systemProps when used with Advanced Mode:

"systemProps": {
  "maxOldSpaceSize": 4095
}

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