27 lines
590 B
Markdown
27 lines
590 B
Markdown
---
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layout: pattern
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title: Poison Pill
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folder: poison-pill
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permalink: /patterns/poison-pill/
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categories: Other
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tags:
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- Java
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- Difficulty-Intermediate
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- Reactive
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---
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## Intent
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Poison Pill is known predefined data item that allows to provide
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graceful shutdown for separate distributed consumption process.
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## Applicability
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Use the Poison Pill idiom when
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* need to send signal from one thread/process to another to terminate
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## Real world examples
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* [akka.actor.PoisonPill](http://doc.akka.io/docs/akka/2.1.4/java/untyped-actors.html)
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