# Unable to restart LS with: Logstash failed to create queue

**URL:** https://discuss.elastic.co/t/unable-to-restart-ls-with-logstash-failed-to-create-queue/226134
**Category:** Logstash
**Created:** [April 1, 2020, 11:26pm UTC](https://discuss.elastic.co/t/unable-to-restart-ls-with-logstash-failed-to-create-queue/226134 "2020-04-01T23:26:36Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![mtudisco](https://avatars.discourse-cdn.com/v4/letter/m/3d9bf3/32.png) [@mtudisco](https://discuss.elastic.co/u/mtudisco)
#### Post date: [April 1, 2020, 11:26pm UTC](https://discuss.elastic.co/t/unable-to-restart-ls-with-logstash-failed-to-create-queue/226134/1 "2020-04-01T23:26:36Z")

</div>

Hi,  
We have Logstash 7.5.1 configure with pipelines, our pipelines configuration is:

```
- pipeline.id: main
  path.config: "/etc/logstash/config/main/*.conf"
  queue.type: persisted
  queue.checkpoint.writes: 1
  pipeline.workers: 1
- pipeline.id: to_filesystem
  path.config: "/etc/logstash/config/to_filesystem/*.conf"
  queue.type: persisted
  queue.checkpoint.writes: 1
  pipeline.workers: 1
- pipeline.id: to_syslog
  path.config: "/etc/logstash/config/to_syslog/*.conf"
  queue.type: persisted
  queue.checkpoint.writes: 1
  pipeline.workers: 1
- pipeline.id: to_qradar
  path.config: "/etc/logstash/config/to_qradar/*.conf"
  queue.type: persisted
  queue.checkpoint.writes: 1
  pipeline.workers: 1  

```

Everything was working fine until today we noticed Logstash was down, and when we try to start it up, it fails. In the logstash log we have messages with:

```
[2020-04-01T16:00:44,444][ERROR][org.logstash.execution.AbstractPipelineExt] Logstash failed to create queue.
java.io.IOException: Unable to allocate 1015543052 more bytes for persisted queue on top of its current usage of 58198772 bytes
...........
[2020-04-01T16:00:44,476][DEBUG][org.logstash.ackedqueue.io.MmapPageIOV2] PageIO recovery element index:46319, readNextElement exception: Element seqNum 0 is expected to be 1329076
[2020-04-01T16:00:44,499][ERROR][org.logstash.execution.AbstractPipelineExt] Logstash failed to create queue.
java.io.IOException: Unable to allocate 1015543052 more bytes for persisted queue on top of its current usage of 58198772 bytes
........
[2020-04-01T16:00:44,529][DEBUG][org.logstash.ackedqueue.io.MmapPageIOV2] PageIO recovery element index:46319, readNextElement exception: Element seqNum 0 is expected to be 1416639
[2020-04-01T16:00:44,531][ERROR][org.logstash.execution.AbstractPipelineExt] Logstash failed to create queue.
java.io.IOException: Unable to allocate 1015543052 more bytes for persisted queue on top of its current usage of 58198772 bytes
.........
[2020-04-01T16:00:44,598][FATAL][logstash.runner] An unexpected error occurred! {:error=>#<LogStash::Error: Don't know how to handle `Java::JavaLang::IllegalStateException` for `PipelineAction::Create<to_qradar>`>, :backtrace=>["org/logstash/execution/ConvergeResultExt.java:109:in `create'", "org/logstash/execution/ConvergeResultExt.java:37:in `add'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:339:in `block in converge_state'"]}

```

Can anyone help? I was thinking of deleting the queues and try to start, but as this is a Testing server, we would like to know what is happening to avoit it to happen on production.

thanks

---

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 29, 2020, 11:26pm UTC](https://discuss.elastic.co/t/unable-to-restart-ls-with-logstash-failed-to-create-queue/226134/2 "2020-04-29T23:26:47Z")

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