Configuration: Runtime (Tomcat)

Kairos runs on Spring MVC with embedded Tomcat.

For most installations, defaults are fine. For constrained environments, tune Tomcat settings below.

Tomcat Tuning Properties

Property	Env var	Default	Purpose
server.tomcat.threads.max	SERVER_TOMCAT_THREADS_MAX	80	Max request worker threads
server.tomcat.threads.min-spare	SERVER_TOMCAT_THREADS_MIN_SPARE	10	Min idle worker threads
server.tomcat.accept-count	SERVER_TOMCAT_ACCEPT_COUNT	100	Connection queue length
server.tomcat.max-connections	SERVER_TOMCAT_MAX_CONNECTIONS	512	Max open HTTP connections
server.tomcat.connection-timeout	SERVER_TOMCAT_CONNECTION_TIMEOUT	5s	Request connection timeout
server.tomcat.keep-alive-timeout	SERVER_TOMCAT_KEEP_ALIVE_TIMEOUT	20s	Keep-alive timeout

Example for a smaller container:

SERVER_TOMCAT_THREADS_MAX=40
SERVER_TOMCAT_MAX_CONNECTIONS=300

HTTP compression for common text payloads is enabled by default.