why some service are lazy while start running jboss server

java jboss server jboss-eap-6
selva picture selva · Jan 29, 2016 · Viewed 7.9k times · Source

The message below indicates that JBoss did not start 59 services out of 299. Why is that?

INFO [org.jboss.as] (Controller Boot Thread) JBAS015874: JBoss EAP 6.3.0.GA (AS 7.4.0.Final-redhat-19) started in 10290ms - Started 261 of 299 services (59 services are lazy, passive or on-demand)

Answer

CoolBeans picture CoolBeans · Jan 29, 2016

This is because JBoss starts certain subsystems/services only when needed. This makes the initial boot process faster as well as save memory.

Certain services such as clustering is not needed until you actually deploy an application that requires clustering (for example, your application has the <distributable /> tag in the WEB-INF/web.xml file). So when this particular application is deployed and you are using a "HA" profile to start JBoss, it will automatically start JBoss clustering related services.

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