# Elasticsearch 8 won't start on Centos 7

**URL:** <https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722>\
**Category:** Elasticsearch\
**Created:** [June 22, 2023, 6:50pm UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722 "2023-06-22T18:50:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![Rios](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rios/32/95745_2.png) [@Rios](https://discuss.elastic.co/u/Rios)\
**Post date:** [June 23, 2023, 5:31am UTC](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722/2 "2023-06-23T05:31:05Z")

</div>

Check the logs at the /var/log/elasticsearch directory.  
If there is no details, change `rootLogger.level` to debug in log4j2.properties, and restart ES.

By default, you need 50% free RAM and 15% free disk space.

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_[View the full topic](https://discuss.elastic.co/t/elasticsearch-8-wont-start-on-centos-7/336722)._