layout	title	folder	permalink	categories	tags
pattern	Poison Pill	poison-pill	/patterns/poison-pill/	Behavioral	Cloud distributed Reactive

Intent

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

Class diagram

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