System Properties are special attributes that give users the ability to change Orchestrator internal system behavior directly by modifying\adding those properties from the Control Centre. These properties are basically part of a configuration file in Orchestrator. In this post, we will some of the important system properties that can help you to enhance your Orchestrator experience.

Process of adding these properties will be same as mentioned below. You don’t really have to add them until needed.

List of System Properties

Usage	Description	Key	Value (example)
Number of concurrent running policies	The number of policies that run simultaneously	com.vmware.o11n.policy.executor_queue_size	300
OGNL Validator	This property enables the OGNL expression evaluation inside Orchestrator	com.vmware.o11n.forms.evalognl-validator.enabled	false
Set the number of vAPI Metamodels	This property will set the number of the vAPI metamodels that can be added from Orchestrator vAPI Plug-in. Adding more that 20 may use excessive memory and cause instability	vapi.metamodels.count	20 (default)
Enable safe mode	If safe mode is enabled, all running workflows are canceled and are not resumed on the next Orchestrator node start.	ch.dunes.safe-mode	false
Number of concurrent running workflows	The number of workflows that run simultaneously.	com.vmware.vco.workflow-engine.executors-count	300
Maximum amount of running workflows in the queue	The number of workflow run requests that the Orchestrator server accepts before becoming unavailable.	com.vmware.vco.workflow-engine.executors-max-queue-size	10000
Maximum number of preserved runs per workflow	The maximum number of finished workflow runs that are kept as history per workflow. If the number is exceeded, the oldest workflow runs are deleted.	ch.dunes.task.max-workflow-tokens	100
Log events expiration days	The number of days that log events are kept in the database before they are purged.	com.vmware.o11n.log-events-expiration-days	15
Set JavaScript Access to Java Classes	Allow the JavaScript engine full access to the Java virtual machine (JVM)	com.vmware.scripting.rhino-class-shutter-file	vco/usr/lib/vco/your_configuration_file_subdirectory
Adding a JDBC Connector for the vRealize Orchestrator SQL Plug-In	Provides the path to the JDBC connector	o11n.plugin.SQL.classpath	/var/run/vco/plugins/SQL/lib/your_mysql_connector.jar
Set Custom Timeout Property	The number of milliseconds Orchestrator will wait for the response from vCenter	com.vmware.vmo.plugin.vi4.waitUpdatesTimeout	30000
Access to Operating System Commands for Workflows and Actions	Grant permission to use the Command class	com.vmware.js.allow-local-process	true
Scheduled Task and Policy Authentication Token Renewal	To make sure that the scheduled workflows or policies in the Orchestrator deployment continue running even after eight hours	com.vmware.o11n.auth.csp.renewTokens	true
Enables Basic Authentication	enables basic authentication in Orchestrator for Multi-Node plugin and REST API.	com.vmware.o11n.sso.basic-authentication.enabled	true
Purge workflow tokens at set interval	The cron syntax to purge/delete workflow tokens automatically, changes the frequency of purging	com.vmware.o11n.purge.execution.cron	0 0/5 * * * ?
Enable Workflow Profiler in the vRealize Orchestrator Client	Enables profiler service to gather useful metric data about your workflow runs	com.vmware.vro.extensions.profiler.enabled	true
Enable Profiler for Every Workflow Run	After you enable the Profile all workflow runs option, Workflow Profiler will generate statistics for every workflow run	com.vmware.o11n.extensions.profiler.profile-all-workflow-runs	true
Enable Profiler for Scripting API	Should the profiler record metrics for scripting API calls	com.vmware.o11n.extensions.profiler.record-scripting	true
Enable Profiler for Action Runs	Should the profiler record metrics for standalone action runs	com.vmware.o11n.extensions.profiler.record-action-runs	true
Enable TokenReplay	enables tokenreplay service by setting it to true	com.vmware.vro.extensions.tokenreplay.enabled	true
Record token replay for all workflow runs	After you enable the TokenReplay, it will record for every workflow run	com.vmware.o11n.extensions.tokenreplay.record-all-workflow-runs	true
Record scripting API calls	it will record for every Scripting API call	com.vmware.o11n.extensions.tokenreplay.recordScripting	true

Procedure to add in Orchestrator

1. Log in to Control Center as root.
2. Click System Properties.
3. Click New.
4. In the Key text box, enter property.name (for eg. com.vmware.o11n.auth.csp.renewTokens).
5. In the Value text box, enter value (for eg. true).
6. In the Description text box, enter a description for the system property.
7. Click Add.
8. Click Save changes from the pop-up menu. A message indicates that you have saved successfully.
9. Wait for the vRealize Orchestrator server to restart.