# Persistent queue Issue on logstash
**URL:** https://discuss.elastic.co/t/persistent-queue-issue-on-logstash/264546
**Category:** Logstash
**Created:** [February 17, 2021, 10:10am UTC](https://discuss.elastic.co/t/persistent-queue-issue-on-logstash/264546 "2021-02-17T10:10:12Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@iammanmale](https://discuss.elastic.co/u/iammanmale)
#### Post date: [February 17, 2021, 10:10am UTC](https://discuss.elastic.co/t/persistent-queue-issue-on-logstash/264546/1 "2021-02-17T10:10:12Z")
We have three logstash nodes to collect log in parallel. All three logstash have 6 output pipelines and 1 intake pipeline. After i try to enable persistent queue on one of the logstash, no matter how little the queue\_max\_event size is, the logstash event emitted rate for pipelines will drop to zero and only the most busy pipeline still running.
Is there anyone who know why it likes that?
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 17, 2021, 10:11am UTC](https://discuss.elastic.co/t/persistent-queue-issue-on-logstash/264546/2 "2021-03-17T10:11:11Z")
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