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The CamelContext provides methods to control its lifecycle:

  • start
  • stop
  • suspend Camel 2.5
  • resume Camel 2.5

The operations is paired: start/stop and suspend/resume.

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Routes in Camel have the following operations to control its lifecycle

  • start
  • stop
  • suspend
  • resume
  • remove (previously named shutdown)

The remove operation will remove the route, for example in JMX the route will then be unregistered and its gone. So only use remove if you really want to remove the route. The route must have been stopped before you can remove.

The start and resume operations in JMX checks the state beforehand. So if a route is stopped and you click resume, it will know to invoke start. And likewise if a route has been suspended and you click start it knows to resume instead. This makes management a bit easier.

If a route is suspended then it keeps its resources and all their JMX metrics alive. Where as stopping a route will graceful stop the route, and clear its resources, and as well their JMX metrics. If you want to temporary "pause" a route, then consider using suspend/resume over stop/start.

Info

If a route consumer does not support suspension, it will fallback and stop the route instead.

See Also