# Persistent Queues Never Writes Tail Files **URL:** \ **Category:** Logstash\ **Created:** [February 23, 2018, 2:29pm UTC](https://discuss.elastic.co/t/persistent-queues-never-writes-tail-files/121231 "2018-02-23T14:29:16Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![simondawe](https://avatars.discourse-cdn.com/v4/letter/s/45deac/32.png) [@simondawe](https://discuss.elastic.co/u/simondawe)\ **Post date:** [February 23, 2018, 2:29pm UTC](https://discuss.elastic.co/t/persistent-queues-never-writes-tail-files/121231/1 "2018-02-23T14:29:16Z")
Hi I have just started playing with logstash 5.4.0 persistent queues. I have configured logstash to use persistent queues though this always writes to head and never rolls the head over to tail. My logstash.yml is as follows; queue.checkpoint.writes: 1 queue.type: persisted path.queue: /usr/share/logstash/persisted-queues queue.page\_capacity: 1000mb And creates -rw-r--r-- 1 root root 1048576000 Feb 23 14:14 page.1 -rw-r--r-- 1 root root 34 Feb 23 14:14 checkpoint.head a few minute later I get -rw-r--r-- 1 root root 1048576000 Feb 23 14:15 page.1 -rw-r--r-- 1 root root 34 Feb 23 14:14 checkpoint.head The size of the file remains consistent and when I cat the page file I can see it changing. Many thanks in advance for any help and advice that anyone can share with me. Simon ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 23, 2018, 2:29pm UTC](https://discuss.elastic.co/t/persistent-queues-never-writes-tail-files/121231/2 "2018-03-23T14:29:33Z")
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