# Elasticsearch free disk space at restart

**URL:** <https://discuss.elastic.co/t/elasticsearch-free-disk-space-at-restart/163692>\
**Category:** Elasticsearch\
**Created:** [January 10, 2019, 9:37am UTC](https://discuss.elastic.co/t/elasticsearch-free-disk-space-at-restart/163692 "2019-01-10T09:37:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jean\_Carlo](https://avatars.discourse-cdn.com/v4/letter/j/77aa72/32.png) [@Jean\_Carlo](https://discuss.elastic.co/u/Jean_Carlo)\
**Post date:** [January 10, 2019, 9:37am UTC](https://discuss.elastic.co/t/elasticsearch-free-disk-space-at-restart/163692/1 "2019-01-10T09:37:34Z")

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I got a machine with 6.7GB if data, once a restart my cluster, the data says drop from 6.7 to 3.7GB

root@node001:~# du -sch /data/elastic/nodes/0/indices/\*  
6,7G /data/elastic/nodes/0/indices/1fTFvrmHRh2mrKNpMncsPA  
6,7G total

root@node001:~# du -sch /data/elastic/nodes/0/indices/\*  
3,7G /data/elastic/nodes/0/indices/1fTFvrmHRh2mrKNpMncsPA  
3,7G total

Why? there is a process to shrink data? Is it possible to run this process without restart the cluster ? it is something have to be done as maintenance ?

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<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:** [February 7, 2019, 9:37am UTC](https://discuss.elastic.co/t/elasticsearch-free-disk-space-at-restart/163692/2 "2019-02-07T09:37:35Z")

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