layout	title	folder	permalink	categories	tags
pattern	Poison Pill	poison-pill	/patterns/poison-pill/	Other	Java Difficulty-Intermediate Reactive

Intent

Poison Pill is known predefined data item that allows to provide graceful shutdown for separate distributed consumption process.

Applicability

Use the Poison Pill idiom when

• need to send signal from one thread/process to another to terminate

Real world examples

• akka.actor.PoisonPill