# Known Issue: Logstash 9.2.0 will not start with a Persistent Queue greater than 2GiB

**URL:** <https://discuss.elastic.co/t/known-issue-logstash-9-2-0-will-not-start-with-a-persistent-queue-greater-than-2gib/383079>\
**Category:** Logstash\
**Created:** [October 29, 2025, 4:57pm UTC](https://discuss.elastic.co/t/known-issue-logstash-9-2-0-will-not-start-with-a-persistent-queue-greater-than-2gib/383079 "2025-10-29T16:57:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![RobBavey](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/robbavey/32/20421_2.png) [@RobBavey](https://discuss.elastic.co/u/RobBavey)\
**Post date:** [October 29, 2025, 4:57pm UTC](https://discuss.elastic.co/t/known-issue-logstash-9-2-0-will-not-start-with-a-persistent-queue-greater-than-2gib/383079/1 "2025-10-29T16:57:59Z")

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Logstash `9.2.0` has a known issue where Logstash will not start if a Persistent Queue has been defined with a size greater than `2 GiB`.

If you attempt to start Logstash `9.2.0` with any PQs where `queue.max_bytes` has been set to `2147483648`bytes or more, Logstash will fail to start.

We recommend not upgrading to Logstash `9.2.0` if you need to define a PQ greater than 2GiB.

More details in the [9.2.0 Release Notes](https://www.elastic.co/docs/release-notes/logstash#logstash-9.2.0-release-notes).