# Queue on output

**URL:** <https://discuss.elastic.co/t/queue-on-output/212677>\
**Category:** Logstash\
**Created:** [December 20, 2019, 3:01pm UTC](https://discuss.elastic.co/t/queue-on-output/212677 "2019-12-20T15:01:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mkalinowski](https://avatars.discourse-cdn.com/v4/letter/m/aeb1de/32.png) [@mkalinowski](https://discuss.elastic.co/u/mkalinowski)\
**Post date:** [December 20, 2019, 3:01pm UTC](https://discuss.elastic.co/t/queue-on-output/212677/1 "2019-12-20T15:01:08Z")

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Hello,

I read recently, there is something like "Persistent Queues". I also saw information about DLQ.  
And here my misunderstanding begins. I care about the problem when the cluster is down.  
It is important to me that in the situation of a problem when the cluster is down, all messages are collected and retrieved when the cluster comes back to life.  
Is configuration only possible or do we need an additional tool?

THX  
Maciej

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 17, 2020, 3:01pm UTC](https://discuss.elastic.co/t/queue-on-output/212677/2 "2020-01-17T15:01:09Z")

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