# Logstash 6 not working after fresh service install

**URL:** <https://discuss.elastic.co/t/logstash-6-not-working-after-fresh-service-install/108236>\
**Category:** Logstash\
**Created:** [November 18, 2017, 2:41pm UTC](https://discuss.elastic.co/t/logstash-6-not-working-after-fresh-service-install/108236 "2017-11-18T14:41:30Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Tomschi](https://avatars.discourse-cdn.com/v4/letter/t/67e7ee/32.png) [@Tomschi](https://discuss.elastic.co/u/Tomschi)\
**Post date:** [November 18, 2017, 2:41pm UTC](https://discuss.elastic.co/t/logstash-6-not-working-after-fresh-service-install/108236/1 "2017-11-18T14:41:31Z")

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I installed Logstash 6 on a CentOS 7 using the repo variant. After starting Logstash over systemd as service the logstash process consumes over 100% CPU and is not running correctly.

OS: CentOS 7  
Java: openjdk 8

I also tested it with Ubuntu Xenial with the same behavior.

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [November 18, 2017, 6:43pm UTC](https://discuss.elastic.co/t/logstash-6-not-working-after-fresh-service-install/108236/2 "2017-11-18T18:43:50Z")

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Have you checked the logs?

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**Author:** ![Tomschi](https://avatars.discourse-cdn.com/v4/letter/t/67e7ee/32.png) [@Tomschi](https://discuss.elastic.co/u/Tomschi)\
**Post date:** [November 19, 2017, 4:14pm UTC](https://discuss.elastic.co/t/logstash-6-not-working-after-fresh-service-install/108236/3 "2017-11-19T16:14:53Z")

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The same topic: [High CPU usage with clean Logstash install](https://discuss.elastic.co/t/high-cpu-usage-with-clean-logstash-install/106598?u=tomschi)

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**Author:** ![guyboertje](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/guyboertje/32/31592_2.png) [@guyboertje](https://discuss.elastic.co/u/guyboertje)\
**Post date:** [November 25, 2017, 4:43pm UTC](https://discuss.elastic.co/t/logstash-6-not-working-after-fresh-service-install/108236/4 "2017-11-25T16:43:24Z")

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See [my comment](https://discuss.elastic.co/t/high-cpu-usage-with-clean-logstash-install/106598/6?u=guyboertje) in High CPU usage with clean Logstash install

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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:** [December 23, 2017, 4:43pm UTC](https://discuss.elastic.co/t/logstash-6-not-working-after-fresh-service-install/108236/5 "2017-12-23T16:43:43Z")

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