System Property Flags

System properties provide runtime control over FastStats behavior.
These flags only affect the current running server session/instance and are not persisted.

faststats.debug

Enable debug logging for all FastStats projects.

Usage:

java -Dfaststats.debug=true -jar server.jar

Values:

• true - Enable debug logging
• false - Disable debug logging

faststats.enabled

Enable or disable FastStats data transmission globally.

Usage:

java -Dfaststats.enabled=false -jar server.jar

Values:

• true - Enable data transmission
• false - Disable data transmission

faststats.initial-delay

Configure the initial delay before FastStats starts collecting metrics.

This flag is meant to be used during development to delay or speed up the start of metric collection.

Usage:

java -Dfaststats.initial-delay=5 -jar server.jar

Values:

• Time in seconds (default: 30)

faststats.message-length

Configure the maximum length of error messages to capture.

Messages exceeding this length will be truncated, not redacted.

Usage:

java -Dfaststats.message-length=750 -jar server.jar

Values:

• Number of characters (default: 500, max: 1000)

faststats.stack-trace-length

Configure the maximum length of each stack trace element string.

Usage:

java -Dfaststats.stack-trace-length=400 -jar server.jar

Values:

• Number of characters (default: 300, max: 500)

faststats.stack-trace-limit

Configure the maximum number of stack trace elements to capture.

Usage:

java -Dfaststats.stack-trace-limit=20 -jar server.jar

Values:

• Number of stack trace elements (default: 15, max: 50)